chore(release): bump workspace version to 0.7.1

Cut 0.7.1 to test the GTK + Decky polish batch (57ae00a) on-device: the
host-click / disconnect-chord / gray-screen-recovery / leak fixes on the
Linux client, the Deck launcher perf profile, and the Decky pin/pairing
fixes. The [workspace.package] version (inherited by every crate via
version.workspace) is the release being cut; refresh the 9 workspace
entries in Cargo.lock to match (CI builds --locked). Canary derives from
the tag (scripts/ci/pf-version.sh), so cutting v0.7.1 auto-advances canary.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.cargo/audit.toml

@@ -34,4 +34,17 @@ ignore = [
     # a constant-time rsa ships (then drop this), the host ever signs an attacker-chosen message with
     # this key, or any RSA decryption / key-transport using the private key is added.
     "RUSTSEC-2023-0071",
+
+    # quick-xml DoS advisories (RUSTSEC-2026-0194 quadratic-time duplicate-attribute check;
+    # RUSTSEC-2026-0195 unbounded namespace-declaration allocation in NsReader). Both are
+    # exploited by feeding attacker-controlled XML to a running parser. In this tree quick-xml is
+    # a BUILD-TIME-ONLY, transitive dependency of `wayland-scanner` (a proc-macro that parses the
+    # TRUSTED wayland protocol XML files shipped with the wayland-rs crates at compile time). It is
+    # never linked into any shipped binary and never parses runtime/attacker-controlled input, so
+    # neither DoS is reachable. There is no fix to bump to: wayland-scanner 0.31.10 (latest) pins
+    # `quick-xml ^0.39`, and the fixes only exist in quick-xml >=0.41. Revisit (drop these) when
+    # wayland-scanner releases against quick-xml >=0.41, or if quick-xml is ever pulled onto a
+    # runtime path that parses untrusted XML.
+    "RUSTSEC-2026-0194",
+    "RUSTSEC-2026-0195",
 ]

.gitea/ISSUE_TEMPLATE/config.yaml

@@ -0,0 +1,9 @@
+# Shown on the "new issue" chooser so security reports go to the private channel, not a public issue.
+blank_issues_enabled: true
+contact_links:
+  - name: 🔒 Report a security vulnerability
+    url: https://git.unom.io/unom/punktfunk/src/branch/main/SECURITY.md
+    about: >-
+      Found a security issue? Please report it privately by email to security@punktfunk.com — do not
+      open a public issue, so other users aren't exposed before a fix ships. See SECURITY.md for the
+      full policy.

.gitea/workflows/android.yml

@@ -78,9 +78,10 @@ jobs:
       - name: Version + channel
         if: github.event_name == 'push' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v'))
         run: |
+          eval "$(bash scripts/ci/pf-version.sh)"   # -> PF_BASE (one minor ahead of the latest stable tag)
           case "$GITHUB_REF" in
             refs/tags/v*) VN="${GITHUB_REF_NAME#v}"; TRACK="alpha" ;;   # alpha = built-in closed testing
-            *)            VN="0.3.0-ci${GITHUB_RUN_NUMBER}"; TRACK="internal" ;;
+            *)            VN="${PF_BASE}-ci${GITHUB_RUN_NUMBER}"; TRACK="internal" ;;
           esac
           echo "VERSION_NAME=$VN" >> "$GITHUB_ENV"
           echo "PLAY_TRACK=$TRACK" >> "$GITHUB_ENV"

.gitea/workflows/deb.yml

@@ -36,16 +36,17 @@ jobs:
 
       - name: Version + channel
         # vX.Y.Z tag -> X.Y.Z, published to the `stable` apt distribution (a real release).
-        # A main push -> 0.3.0~ciN.g<sha>, published to the `canary` distribution: the '~' sorts
-        # below the eventual 0.3.0 tag, it climbs monotonically by run number, and the canary base
-        # stays one minor AHEAD of the latest stable so a stable->canary box re-point still moves
-        # forward (see channels.md). Computed BEFORE the build so it's stamped into the binary
+        # A main push -> <next-minor>~ciN.g<sha>, published to the `canary` distribution: the '~' sorts
+        # below the eventual tag, it climbs monotonically by run number, and the canary base is
+        # derived one minor AHEAD of the latest stable tag (scripts/ci/pf-version.sh) so a
+        # stable->canary box re-point still moves forward (see channels.md). Computed BEFORE the build so it's stamped into the binary
         # (PUNKTFUNK_BUILD_VERSION -> build.rs -> --version).
         run: |
+          eval "$(bash scripts/ci/pf-version.sh)"   # -> PF_BASE (one minor ahead of the latest stable tag)
           SHORT=$(echo "$GITHUB_SHA" | cut -c1-8)
           case "$GITHUB_REF" in
             refs/tags/v*) V="${GITHUB_REF_NAME#v}"; DIST=stable ;;
-            *)            V="0.3.0~ci${GITHUB_RUN_NUMBER}.g${SHORT}"; DIST=canary ;;
+            *)            V="${PF_BASE}~ci${GITHUB_RUN_NUMBER}.g${SHORT}"; DIST=canary ;;
           esac
           echo "VERSION=$V" >> "$GITHUB_ENV"
           echo "DISTRIBUTION=$DIST" >> "$GITHUB_ENV"
@@ -87,12 +88,13 @@ jobs:
           git config --global --add safe.directory "$PWD"
           cargo build --release -p punktfunk-host -p punktfunk-client-linux --locked
 
-      - name: Build + smoke-boot web console (node-server preset)
-        # Gate the .deb on a real node boot: the punktfunk-web .deb runs `node .output/server`,
-        # so prove the node-server build exists, isn't a bun bundle, and actually serves /login.
+      - name: Build + smoke-boot web console (bun preset)
+        # Gate the .deb on a real bun boot: the punktfunk-web .deb runs the Nitro `bun` preset
+        # (our Bun.serve TLS entry), so prove the build IS a bun bundle and serves /login.
+        # No TLS env here, so the custom entry binds plain HTTP — the smoke curl stays simple.
         run: |
-          # bun builds the console. It's baked into the rust-ci image, but bootstrap it here too so
-          # the job stays green against the PREVIOUS image (docker.yml bootstrap lag).
+          # bun builds AND runs the console. Baked into the rust-ci image; bootstrap here too so the
+          # job stays green against the PREVIOUS image (docker.yml bootstrap lag).
           command -v bun >/dev/null || {
             apt-get install -y --no-install-recommends unzip
             curl -fsSL https://bun.sh/install | bash
@@ -101,21 +103,23 @@ jobs:
           cd web
           bun install --frozen-lockfile
           bun run build
-          if grep -q 'Bun\.serve' .output/server/index.mjs; then
-            echo "ERROR: web build is a bun bundle (Bun.serve) — need the node-server preset"; exit 1
+          if ! grep -q 'Bun\.serve' .output/server/index.mjs; then
+            echo "ERROR: web build is not a bun bundle — need the 'bun' preset + custom entry"; exit 1
           fi
-          PORT=3009 HOST=127.0.0.1 PUNKTFUNK_UI_PASSWORD=ci node .output/server/index.mjs &
+          PORT=3009 HOST=127.0.0.1 PUNKTFUNK_UI_PASSWORD=ci bun .output/server/index.mjs &
           NP=$!; sleep 3
           code=$(curl -s -o /dev/null -w '%{http_code}' http://127.0.0.1:3009/login || echo 000)
           kill "$NP" 2>/dev/null || true
           echo "web console smoke: /login -> $code"
-          [ "$code" = 200 ] || { echo "ERROR: web console failed to boot under node"; exit 1; }
+          [ "$code" = 200 ] || { echo "ERROR: web console failed to boot under bun"; exit 1; }
 
       - name: Build .debs
         run: |
+          export PATH="$HOME/.bun/bin:$PATH"
           VERSION="$VERSION" bash packaging/debian/build-deb.sh
           VERSION="$VERSION" bash packaging/debian/build-client-deb.sh
-          VERSION="$VERSION" bash packaging/debian/build-web-deb.sh
+          # Reuse CI's bun for the vendored runtime (matches the amd64 runner) instead of downloading.
+          VERSION="$VERSION" BUN_BIN="$(command -v bun || true)" bash packaging/debian/build-web-deb.sh
 
       - name: Publish to the Gitea apt registry
         env:
@@ -123,6 +127,14 @@ jobs:
         run: |
           for DEB in dist/*.deb; do
             echo "uploading $DEB"
+            # A re-tagged release re-fires this workflow and the apt registry 409s on duplicate
+            # package versions — delete any prior copy of this exact name/version/arch first
+            # (404 on the first publish is fine).
+            NAME=$(dpkg-deb -f "$DEB" Package)
+            VER=$(dpkg-deb -f "$DEB" Version)
+            ARCH=$(dpkg-deb -f "$DEB" Architecture)
+            curl -fsS -o /dev/null --user "enricobuehler:$TOKEN" -X DELETE \
+              "https://$REGISTRY/api/packages/$OWNER/debian/pool/$DISTRIBUTION/$COMPONENT/$NAME/$VER/$ARCH" || true
             # PAT owner (enricobuehler), not the push actor — matches docker.yml's registry login.
             curl -fsS --user "enricobuehler:$TOKEN" --upload-file "$DEB" \
               "https://$REGISTRY/api/packages/$OWNER/debian/pool/$DISTRIBUTION/$COMPONENT/upload"

.gitea/workflows/decky.yml

@@ -63,7 +63,8 @@ jobs:
           pnpm run build          # rollup -> clients/decky/dist/index.js
 
       - name: Version + channel + stamp
-        # Tag vX.Y.Z -> X.Y.Z (stable `latest/` alias + Gitea Release); main push -> 0.3.<run>
+        # Tag vX.Y.Z -> X.Y.Z (stable `latest/` alias + Gitea Release); main push -> <next-minor>.<run>
+        # (base one minor ahead of the latest stable tag via scripts/ci/pf-version.sh)
         # (`canary/` alias). Decky reads a plugin's INSTALLED version from package.json (NOT
         # plugin.json), and the plugin's own update check (clients/decky/main.py check_update)
         # compares against it — so the build version is STAMPED into package.json here (mirrored
@@ -72,9 +73,12 @@ jobs:
         # (ci10 < ci9), which would break update detection; the run number is monotonic.
         working-directory: ${{ gitea.workspace }}
         run: |
+          eval "$(bash scripts/ci/pf-version.sh)"   # -> PF_MAJOR/PF_MINOR (base one minor ahead of latest stable)
           case "$GITHUB_REF" in
             refs/tags/v*) V="${GITHUB_REF_NAME#v}"; ALIAS=latest ;;
-            *)            V="0.3.${GITHUB_RUN_NUMBER}"; ALIAS=canary ;;
+            # Canary MUST be a plain monotonic numeric semver (see the note above): <major>.<minor>.<run>,
+            # where major.minor track one minor ahead of the latest stable and the run number climbs.
+            *)            V="${PF_MAJOR}.${PF_MINOR}.${GITHUB_RUN_NUMBER}"; ALIAS=canary ;;
           esac
           BASE="https://$REGISTRY/api/packages/$OWNER/generic/$PACKAGE"
           echo "VERSION=$V" >> "$GITHUB_ENV"
@@ -122,8 +126,13 @@ jobs:
           TOKEN: ${{ secrets.REGISTRY_TOKEN }}
         run: |
           BASE="https://$REGISTRY/api/packages/$OWNER/generic/$PACKAGE"
-          # 1) Immutable, versioned URL + its update manifest (the manifest's `artifact` points
-          #    here, so the published sha256 keeps matching what Decky later downloads).
+          # 1) Versioned URL + its update manifest (the manifest's `artifact` points here, so the
+          #    published sha256 keeps matching what Decky later downloads). A re-tagged release
+          #    re-fires this workflow and the registry 409s on duplicate uploads — delete any
+          #    prior copy of this version first (404 on the first publish is fine).
+          for f in punktfunk.zip manifest.json; do
+            curl -fsS -o /dev/null --user "enricobuehler:$TOKEN" -X DELETE "$BASE/$VERSION/$f" || true
+          done
           curl -fsS --user "enricobuehler:$TOKEN" --upload-file "$RUNNER_TEMP/punktfunk.zip" \
             "$BASE/$VERSION/punktfunk.zip"
           curl -fsS --user "enricobuehler:$TOKEN" --upload-file "$RUNNER_TEMP/manifest.json" \

.gitea/workflows/flatpak.yml

@@ -73,15 +73,17 @@ jobs:
 
       - name: Version + channel
         # Tag vX.Y.Z -> X.Y.Z on the OSTree `stable` branch (a real release); a main push ->
-        # 0.3.0-ciN.g<sha> on the `canary` branch. The two branches live side-by-side in one repo
+        # <next-minor>-ciN.g<sha> on the `canary` branch (base one minor ahead of the latest stable
+        # tag via scripts/ci/pf-version.sh). The two branches live side-by-side in one repo
         # (rsync runs without --delete), each tracked by its own .flatpakref, so `flatpak update`
         # on a stable box never jumps to a canary build. The generic-registry version string allows
         # letters/dots/hyphens.
         run: |
+          eval "$(bash scripts/ci/pf-version.sh)"   # -> PF_BASE (one minor ahead of the latest stable tag)
           SHORT=$(echo "$GITHUB_SHA" | cut -c1-8)
           case "$GITHUB_REF" in
             refs/tags/v*) V="${GITHUB_REF_NAME#v}"; BRANCH=stable; ALIAS=latest ;;
-            *)            V="0.3.0-ci${GITHUB_RUN_NUMBER}.g${SHORT}"; BRANCH=canary; ALIAS=canary ;;
+            *)            V="${PF_BASE}-ci${GITHUB_RUN_NUMBER}.g${SHORT}"; BRANCH=canary; ALIAS=canary ;;
           esac
           echo "VERSION=$V" >> "$GITHUB_ENV"
           echo "BUNDLE=punktfunk-client-${V}.flatpak" >> "$GITHUB_ENV"
@@ -106,6 +108,40 @@ jobs:
           python3 /tmp/flatpak-cargo-generator.py /tmp/Cargo.flatpak.lock \
             -o packaging/flatpak/cargo-sources.json
 
+      - name: Seed the local OSTree repo from the live server (keep BOTH channels in the summary)
+        # Each CI run builds only ONE branch (canary on main, stable on a tag). The deploy step's
+        # `flatpak build-update-repo` regenerates the repo SUMMARY from whatever refs are in the
+        # LOCAL repo, and the rsync publishes it (without --delete). A fresh single-branch local
+        # repo therefore produces a single-branch summary that CLOBBERS the other channel on the
+        # server — the exact bug that made `app/io.unom.Punktfunk/x86_64/stable` unresolvable
+        # ("No such ref") after a canary main-push overwrote the post-release summary, even though
+        # the stable commit's objects were still on disk. Fix: mirror the published repo DOWN first,
+        # so the local repo carries every existing branch; the build below then only ADDS this run's
+        # commit and the regenerated+signed summary keeps both channels. No-op on a fresh repo (first
+        # publish) or when the deploy secrets aren't set (the build still produces a valid bundle).
+        env:
+          DEPLOY_HOST: ${{ secrets.DEPLOY_HOST }}
+          DEPLOY_USER: ${{ secrets.DEPLOY_USER }}
+          DEPLOY_PORT: ${{ secrets.DEPLOY_PORT }}
+          DEPLOY_SSH_KEY: ${{ secrets.DEPLOY_SSH_KEY }}
+        run: |
+          set -euo pipefail
+          if [ -z "${DEPLOY_HOST:-}" ] || [ -z "${DEPLOY_SSH_KEY:-}" ]; then
+            echo "::warning::DEPLOY_* not set — no seed; building a fresh single-branch repo."
+            exit 0
+          fi
+          install -d -m700 ~/.ssh
+          printf '%s\n' "$DEPLOY_SSH_KEY" > ~/.ssh/deploy; chmod 600 ~/.ssh/deploy
+          SSH="ssh -i $HOME/.ssh/deploy -p ${DEPLOY_PORT:-22} -o StrictHostKeyChecking=accept-new"
+          DEST="${DEPLOY_USER}@${DEPLOY_HOST}"
+          mkdir -p "$PWD/repo"
+          # Pull the currently-published repo (all channels' objects + refs) into the repo the build
+          # will extend. No --delete: the local repo starts empty, so this only ADDS. A missing
+          # server repo (very first publish) is fine — we continue with a fresh repo.
+          rsync -az --info=stats1 -e "$SSH" "$DEST:$DEPLOY_DIR/site/repo/" "$PWD/repo/" \
+            || echo "::warning::no published repo to seed (first publish?) — continuing fresh"
+          echo "seeded refs:"; ls "$PWD/repo/refs/heads/app/$APP_ID/x86_64/" 2>/dev/null || echo "  (none)"
+
       - name: Build the flatpak (install deps from Flathub, offline build)
         run: |
           # --install-deps-from=flathub pulls everything the manifest declares: the GNOME 50
@@ -133,7 +169,10 @@ jobs:
           TOKEN: ${{ secrets.REGISTRY_TOKEN }}
         run: |
           BASE="https://$REGISTRY/api/packages/$OWNER/generic/$PACKAGE"
-          # 1) Immutable, versioned URL.
+          # 1) Versioned URL. A re-tagged release re-fires this workflow and the registry 409s on
+          #    duplicate uploads — delete any prior copy first (404 on the first publish is fine).
+          curl -fsS -o /dev/null --user "enricobuehler:$TOKEN" -X DELETE \
+            "$BASE/$VERSION/$BUNDLE" || true
           curl -fsS --user "enricobuehler:$TOKEN" --upload-file "$BUNDLE" \
             "$BASE/$VERSION/$BUNDLE"
           echo "published $BASE/$VERSION/$BUNDLE"
@@ -174,6 +213,10 @@ jobs:
             --gpg-sign="$KEYID" --gpg-homedir="$GNUPGHOME"
           flatpak build-update-repo --generate-static-deltas \
             --gpg-sign="$KEYID" --gpg-homedir="$GNUPGHOME" "$PWD/repo"
+          # The regenerated summary advertises exactly these refs — must include EVERY channel that
+          # has ever published (the seed step ensures the other channel's commit is present). If this
+          # ever shows only one branch on a repo that had two, the seed didn't run — investigate.
+          echo "published summary advertises:"; ls "$PWD/repo/refs/heads/app/$APP_ID/x86_64/" 2>/dev/null || echo "  (none)"
           # 2) Build the install descriptors (GPGKey = the committed public key, base64).
           GPGKEY="$(base64 -w0 packaging/flatpak/unom-flatpak.gpg)"
           rm -rf site && mkdir -p site
@@ -185,9 +228,12 @@ jobs:
           Comment=unom Flatpak applications
           GPGKey=$GPGKEY
           EOF
-          # Two refs, one per channel — both regenerated every run and rsync'd without --delete, so
-          # the server always offers both (the stable ref only resolves once a release has built the
-          # `stable` branch). A box installs ONE; `flatpak update` then tracks that channel's branch.
+          # Two refs, one per channel. Both descriptor files are regenerated every run and rsync'd
+          # without --delete; the repo SUMMARY carries both branches because the build was seeded
+          # from the live repo above (so build-update-repo below re-signs a summary listing every
+          # published channel, not just this run's). The stable ref resolves for good once any
+          # release has built the `stable` branch. A box installs ONE; `flatpak update` then tracks
+          # that channel's branch.
           write_ref() {  # <filename> <branch> <title>
             cat > "site/$1" <<EOF
           [Flatpak Ref]

.gitea/workflows/release.yml

@@ -99,13 +99,14 @@ jobs:
 
       - name: Version from tag
         run: |
+          eval "$(bash scripts/ci/pf-version.sh)"   # -> PF_BASE, PF_CHANNEL, PF_STABLE_TAG (single source of truth)
           case "$GITHUB_REF" in
             refs/tags/v*) V="${GITHUB_REF_NAME#v}"; V="${V%%-*}" ;;  # App Store marketing version is numeric X.Y.Z (drop -rc)
-            *)            V="0.3.0" ;;                                # canary marketing version; the build number disambiguates
+            *)            V="$PF_BASE" ;;                             # canary marketing version = one minor ahead of the latest stable tag; the build number disambiguates
           esac
           echo "VERSION=$V" >> "$GITHUB_ENV"
           echo "BUILD_NUM=$GITHUB_RUN_NUMBER" >> "$GITHUB_ENV"
-          echo "version $V build $GITHUB_RUN_NUMBER"
+          echo "version $V build $GITHUB_RUN_NUMBER (channel $PF_CHANNEL, latest stable ${PF_STABLE_TAG})"
 
       - name: Rust toolchain (mac + iOS + tvOS slices)
         run: |

.gitea/workflows/rpm.yml

@@ -68,16 +68,17 @@ jobs:
           restore-keys: cargo-home-
 
       - name: Version + channel
-        # vX.Y.Z tag -> X.Y.Z-1 in the base group (a real release); main push -> 0.3.0-0.ciN.g<sha>
-        # in the `<base>-canary` group, whose "0." release sorts below the eventual 0.3.0-1 yet
-        # climbs by run number. The canary base stays one minor ahead of the latest stable so a
-        # stable->canary box re-point still moves forward. The spec %build stamps
+        # vX.Y.Z tag -> X.Y.Z-1 in the base group (a real release); main push -> <next-minor>-0.ciN.g<sha>
+        # in the `<base>-canary` group, whose "0." release sorts below the eventual <next-minor>-1 yet
+        # climbs by run number. The canary base is derived one minor ahead of the latest stable tag
+        # (scripts/ci/pf-version.sh) so a stable->canary box re-point still moves forward. The spec %build stamps
         # PUNKTFUNK_BUILD_VERSION from these macros into the binary (--version provenance).
         run: |
+          eval "$(bash scripts/ci/pf-version.sh)"   # -> PF_BASE (one minor ahead of the latest stable tag)
           SHORT=$(echo "$GITHUB_SHA" | cut -c1-8)
           case "$GITHUB_REF" in
             refs/tags/v*) V="${GITHUB_REF_NAME#v}"; R="1"; GROUP="${{ matrix.group }}" ;;
-            *)            V="0.3.0"; R="0.ci${GITHUB_RUN_NUMBER}.g${SHORT}"; GROUP="${{ matrix.group }}-canary" ;;
+            *)            V="$PF_BASE"; R="0.ci${GITHUB_RUN_NUMBER}.g${SHORT}"; GROUP="${{ matrix.group }}-canary" ;;
           esac
           echo "PF_VERSION=$V" >> "$GITHUB_ENV"
           echo "PF_RELEASE=$R" >> "$GITHUB_ENV"
@@ -103,6 +104,14 @@ jobs:
           for rpm in dist/*.rpm; do
             case "$rpm" in *debuginfo*|*debugsource*) echo "skip $rpm"; continue;; esac
             echo "uploading $rpm"
+            # A re-tagged release re-fires this workflow and the rpm registry 409s on duplicate
+            # package versions — delete any prior copy of this exact name/version-release/arch
+            # first (404 on the first publish is fine).
+            NAME=$(rpm -qp --qf '%{NAME}' "$rpm" 2>/dev/null)
+            VR=$(rpm -qp --qf '%{VERSION}-%{RELEASE}' "$rpm" 2>/dev/null)
+            ARCH=$(rpm -qp --qf '%{ARCH}' "$rpm" 2>/dev/null)
+            curl -fsS -o /dev/null --user "enricobuehler:$TOKEN" -X DELETE \
+              "https://$REGISTRY/api/packages/$OWNER/rpm/$GROUP/package/$NAME/$VR/$ARCH" || true
             curl -fsS --user "enricobuehler:$TOKEN" --upload-file "$rpm" \
               "https://$REGISTRY/api/packages/$OWNER/rpm/$GROUP/upload"
           done

.gitea/workflows/windows-drivers-provision.yml

@@ -1,27 +0,0 @@
-# One-shot provisioning of the WDK + cargo-wdk onto the persistent self-hosted windows-amd64 runner, so
-# the all-Rust UMDF drivers can build there (design/windows-host-rewrite.md, M0). The runner has the base
-# Windows SDK + MSVC + LLVM + Rust but NOT the WDK (no km/wdf/iddcx headers) or cargo-wdk.
-#
-# Dispatch manually (workflow_dispatch). Idempotent: re-running is a near no-op once provisioned. The
-# install persists on the runner (real box, not an ephemeral container), so this runs once, not per build.
-name: windows-drivers-provision
-
-on:
-  workflow_dispatch:
-  push:
-    branches: [main]
-    paths:
-      - 'scripts/ci/provision-windows-wdk.ps1'
-      - '.gitea/workflows/windows-drivers-provision.yml'
-
-jobs:
-  provision:
-    runs-on: windows-amd64
-    timeout-minutes: 60
-    defaults:
-      run:
-        shell: pwsh
-    steps:
-      - uses: actions/checkout@v4
-      - name: Install WDK + cargo-wdk on the runner
-        run: ./scripts/ci/provision-windows-wdk.ps1

.gitea/workflows/windows-drivers.yml

@@ -1,5 +1,5 @@
-# Windows driver workspace CI — runs on the self-hosted Windows runner (home-windows-1, host mode;
-# label windows-amd64). Part of the Windows-host rewrite (design/windows-host-rewrite.md, M0).
+# Windows driver workspace CI — runs on a self-hosted Windows runner (home-windows-runner-1, host
+# mode; label windows-amd64). Part of the Windows-host rewrite (design/windows-host-rewrite.md, M0).
 #
 # Stage 1 (this file): PROBE the runner's driver toolchain (WDK / EWDK / cargo-make / LLVM / the
 # inf2cat/stampinf/devgen/signtool tools) so we know what's provisioned BEFORE writing driver code,
@@ -26,7 +26,8 @@ on:
       - 'crates/pf-driver-proto/**'
       - 'packaging/windows/drivers/**'
 
-# Driver builds need the WDK on the runner (provision once via windows-drivers-provision.yml).
+# Driver builds need the WDK on the runner - the driver-build job below self-provisions it via
+# scripts/ci/ensure-windows-toolchain.ps1, a fast no-op once already present.
 
 jobs:
   probe-and-proto:
@@ -124,16 +125,27 @@ jobs:
       # retired that — see design/windows-build-and-packaging.md.
     steps:
       - uses: actions/checkout@v4
-      - name: Ensure WDK + cargo-wdk (idempotent self-provision)
-        # Run the provisioning script here too so driver-build is self-sufficient and never races a
-        # separate provision run on the single runner. Path is relative to the job working-directory
-        # (packaging/windows/drivers). Near-noop once the toolchain is present.
-        run: ../../../scripts/ci/provision-windows-wdk.ps1
-      - name: cargo build the driver workspace (wdk-probe + wdk-iddcx + pf-vdisplay)
+      - name: Ensure Windows toolchain (WDK, FFmpeg, Inno Setup, ARM64 target)
+        # Shared self-provision step (also used by windows.yml/windows-msix.yml/windows-host.yml) so
+        # driver-build is self-sufficient on any windows-amd64 runner and never races a manually
+        # dispatched provisioning workflow landing on a different one. Path is relative to the job
+        # working-directory (packaging/windows/drivers). Near-noop once the toolchain is present.
+        run: ../../../scripts/ci/ensure-windows-toolchain.ps1
+      - name: cargo build the driver workspace (wdk-probe + wdk-iddcx + pf-vdisplay + gamepad drivers)
         # Whole workspace: wdk-probe (toolchain/surface-assert probe) + wdk-iddcx (DDI wrappers) +
-        # pf-vdisplay (the real IddCx driver). pf-vdisplay linking proves the IddCx call sites resolve
-        # against IddCxStub end-to-end (M1 step 2 gate).
+        # pf-vdisplay (the real IddCx driver) + pf-umdf-util (the safe UMDF primitive layer) + the two
+        # gamepad drivers. pf-vdisplay linking proves the IddCx call sites resolve against IddCxStub
+        # end-to-end (M1 step 2 gate); the gamepad drivers prove pf-umdf-util's WDF dispatch links.
         run: cargo build -v
+      - name: cargo clippy the shipped drivers (-D warnings — enforces the unsafe-audit gates)
+        # The gamepad drivers' business logic is 100% safe (it moved onto pf-umdf-util, the audited
+        # unsafe layer); pf-vdisplay + wdk-iddcx are inherently FFI-bound but every `unsafe {}` carries a
+        # `// SAFETY:` proof. Both invariants are lint-gated (`unsafe_op_in_unsafe_fn` +
+        # `undocumented_unsafe_blocks`); this step keeps them from regressing. (wdk-probe is a
+        # toolchain-only probe crate and is excluded.)
+        run: cargo clippy -p pf-umdf-util -p pf-xusb -p pf-dualsense -p wdk-iddcx -p pf-vdisplay --all-targets -- -D warnings
+      - name: cargo fmt --check the safe-layer + gamepad drivers
+        run: cargo fmt -p pf-umdf-util -p pf-xusb -p pf-dualsense --check
       - name: Inspect /INTEGRITYCHECK (before) — expect FORCE_INTEGRITY set by wdk-build
         run: |
           # explicit --target (.cargo/config.toml) -> output under the triple subdir.

.gitea/workflows/windows-host.yml

@@ -1,8 +1,9 @@
 # Build the punktfunk Windows HOST as a signed Inno Setup installer and publish it to Gitea's generic
 # package registry, so a Windows GPU box can install the streaming host (SYSTEM service + bundled
 # pf-vdisplay virtual-display driver + the web management console, run by a scheduled task on a bundled
-# bun) from one signed setup.exe. Runs on the self-hosted Windows runner
-# (host mode; scripts/ci/setup-windows-runner.ps1) — same MSVC/Windows-SDK/LLVM env as windows.yml.
+# bun) from one signed setup.exe. Runs on a self-hosted windows-amd64 runner
+# (host mode; same MSVC/Windows-SDK/LLVM env as windows.yml — generic from unom/infra's
+# windows-runner/, FFmpeg/Inno Setup self-provision via the "Ensure Windows toolchain" step below).
 #
 # Why an installer and not MSIX (like the client): the host installs a LocalSystem SCM service that
 # CreateProcessAsUserW's into the interactive session for secure-desktop capture, and bundles a
@@ -15,15 +16,17 @@
 # Versioning (free-form; not MSIX's 4-part rule) — single project version:
 #   vX.Y.Z tag -> X.Y.Z   (THE release; published + stable `latest/` alias + attached to the
 #                          unified Gitea Release).
-#   main push / dispatch -> 0.3.<run_number>  (canary; `canary/` alias; climbs by run number).
+#   main push / dispatch -> <next-minor>.<run_number>  (canary; `canary/` alias; base one minor
+#                          ahead of the latest stable tag via scripts/ci/pf-version.ps1, run climbs).
 #
 # Signing reuses the client's MSIX_CERT_PFX_B64 / MSIX_CERT_PASSWORD secrets (CN=unom). Without them
 # an ephemeral self-signed cert is generated and its public .cer published next to the installer
 # (import once to LocalMachine\TrustedPublisher). See packaging/windows/pack-host-installer.ps1.
 #
 # GPU backends: the host builds with --features nvenc,amf-qsv = all three vendors in one installer.
-#  - NVENC (NVIDIA, direct SDK): the only link need is nvencodeapi.lib, synthesised from a 2-export
-#    .def with llvm-dlltool (no GPU/SDK at build time).
+#  - NVENC (NVIDIA, direct SDK): nothing needed at build time — the entry points are resolved at
+#    RUNTIME from the driver's nvEncodeAPI64.dll (a link-time import would kill the binary on
+#    AMD/Intel-only boxes before main).
 #  - AMF/QSV (AMD/Intel, libavcodec): link-imports the FFmpeg libs from FFMPEG_DIR (the BtbN lgpl-shared
 #    tree the client uses; includes the *_amf/*_qsv encoders) and bundles its DLLs into the installer.
 #    lgpl-shared (not gpl-shared) keeps those bundled DLLs LGPL (we never use the GPL-only x264/x265).
@@ -36,6 +39,7 @@ on:
     paths:
       - 'crates/punktfunk-host/**'
       - 'crates/punktfunk-core/**'
+      - 'crates/punktfunk-tray/**'
       - 'packaging/windows/**'
       - 'scripts/windows/**'
       - 'web/**'
@@ -57,6 +61,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Ensure Windows toolchain (WDK, FFmpeg, Inno Setup, ARM64 target)
+        shell: pwsh
+        run: ./scripts/ci/ensure-windows-toolchain.ps1
+
       - name: Locale-safety gate (installer-run scripts must be ASCII)
         shell: pwsh
         # The installer runs these via powershell.exe (Windows PowerShell 5.1) and cmd.exe on the END
@@ -82,36 +90,46 @@ jobs:
           "CARGO_TARGET_DIR=C:\t" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
           "CARGO_WORKSPACE_DIR=$env:GITHUB_WORKSPACE" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
           # FFMPEG_DIR: the same BtbN lgpl-shared x64 tree the Windows CLIENT links against (provisioned
-          # by scripts/ci/setup-windows-runner.ps1). The host's AMD/Intel AMF/QSV encode backend
+          # by scripts/ci/provision-windows-punktfunk-extras.ps1). The host's AMD/Intel AMF/QSV encode backend
           # (--features amf-qsv) link-imports avcodec/avutil/swscale from it; pack-host-installer.ps1
           # then bundles its bin\*.dll into the installer. LIBCLANG_PATH is in the runner daemon env.
           if (-not $env:FFMPEG_DIR) {
             "FFMPEG_DIR=C:\Users\Public\ffmpeg" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
           }
+          # VBCABLE_DIR: the pinned official VB-CABLE package (provisioned by
+          # provision-windows-punktfunk-extras.ps1) -> pack-host-installer.ps1 bundles the
+          # streaming virtual microphone. Same daemon-env-or-fallback pattern as FFMPEG_DIR
+          # (the daemon env only refreshes on a runner-task restart).
+          if (-not $env:VBCABLE_DIR) {
+            "VBCABLE_DIR=C:\Users\Public\vbcable" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
+          }
+          $pf = & "$env:GITHUB_WORKSPACE/scripts/ci/pf-version.ps1"   # single source of truth: base is one minor ahead of the latest stable tag
           $v = if ($env:GITHUB_REF -like 'refs/tags/v*') {
             $env:GITHUB_REF_NAME -replace '^v', ''
           } else {
-            "0.3.$($env:GITHUB_RUN_NUMBER)"
+            # Canary: <major>.<minor>.<run> — major.minor track one minor ahead of stable, run climbs monotonically.
+            "$($pf.PF_MAJOR).$($pf.PF_MINOR).$($env:GITHUB_RUN_NUMBER)"
           }
           "HOST_VERSION=$v" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
           "PUNKTFUNK_BUILD_VERSION=$v" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
           Write-Output "host version $v"
 
-      - name: Generate NVENC import lib
-        shell: pwsh
-        run: |
-          & packaging/windows/nvenc/gen-nvenc-importlib.ps1 -OutDir C:\t\nvenc
-          "PUNKTFUNK_NVENC_LIB_DIR=C:\t\nvenc" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
-
       - name: Build (release, nvenc + amf-qsv)
         shell: pwsh
         # All-vendor host: NVENC (NVIDIA, direct SDK) + AMF/QSV (AMD/Intel, libavcodec via FFMPEG_DIR).
         run: cargo build --release -p punktfunk-host --features nvenc,amf-qsv
 
-      - name: Clippy (host, Windows)
+      - name: Build (release, status tray)
+        shell: pwsh
+        # The per-user notification-area companion the installer bundles (punktfunk-tray.exe).
+        run: cargo build --release -p punktfunk-tray
+
+      - name: Clippy (host + tray, Windows)
         shell: pwsh
         # First-ever Windows lint coverage for the host (Linux CI never lints the windows-cfg code).
-        run: cargo clippy -p punktfunk-host --features nvenc,amf-qsv -- -D warnings
+        run: |
+          cargo clippy -p punktfunk-host --features nvenc,amf-qsv -- -D warnings; if ($LASTEXITCODE) { throw "host clippy" }
+          cargo clippy -p punktfunk-tray -- -D warnings; if ($LASTEXITCODE) { throw "tray clippy" }
 
       - name: Build + lint the HDR Vulkan layer (pf-vkhdr-layer)
         shell: pwsh
@@ -125,14 +143,6 @@ jobs:
           cargo clippy --release -- -D warnings; if ($LASTEXITCODE) { throw "pf-vkhdr-layer clippy" }
           Pop-Location
 
-      - name: Ensure Inno Setup
-        shell: pwsh
-        run: |
-          if (-not (Test-Path 'C:\Program Files (x86)\Inno Setup 6\ISCC.exe') -and -not (Get-Command iscc -ErrorAction SilentlyContinue)) {
-            Write-Output "installing Inno Setup via choco"
-            choco install innosetup -y --no-progress
-          }
-
       - name: Fetch portable bun runtime (build tool + bundled to run the console)
         shell: pwsh
         run: |
@@ -171,8 +181,8 @@ jobs:
           Push-Location web
           & $bun install --frozen-lockfile; if ($LASTEXITCODE) { throw "bun install failed ($LASTEXITCODE)" }
           & $bun run build; if ($LASTEXITCODE) { throw "web build failed ($LASTEXITCODE)" }
-          if (Select-String -Path .output\server\index.mjs -Pattern 'Bun\.serve' -Quiet) {
-            throw "web build is a bun bundle (Bun.serve) - need the node-server preset"
+          if (-not (Select-String -Path .output\server\index.mjs -Pattern 'Bun\.serve' -Quiet)) {
+            throw "web build is not a bun bundle - need the 'bun' preset + custom entry"
           }
           Pop-Location
           # Gate the installer on a real boot under the BUNDLED bun (the runtime it ships), serving /login.
@@ -203,9 +213,15 @@ jobs:
           # Check curl's exit code ourselves — a best-effort DELETE (404 on first run) must not abort.
           $PSNativeCommandUseErrorActionPreference = $false
           function Publish-File($f, $url) {
-            curl.exe -fsS --user "enricobuehler:$($env:REGISTRY_TOKEN)" --upload-file "$f" "$url"
-            if ($LASTEXITCODE -ne 0) { throw "upload failed ($LASTEXITCODE): $url" }
-            Write-Output "published $url"
+            # The generic registry makes a versioned path immutable and 409s a re-upload, so a tag
+            # re-run re-publishing the identical artifact must be tolerated as a no-op. (The channel
+            # alias below is delete-then-reuploaded and never 409s.) No curl -f, so we can read the
+            # status code instead of aborting on it.
+            $code = [int](curl.exe -sS -o NUL -w "%{http_code}" --user "enricobuehler:$($env:REGISTRY_TOKEN)" --upload-file "$f" "$url")
+            if ($LASTEXITCODE -ne 0) { throw "upload failed (curl exit $LASTEXITCODE): $url" }
+            if ($code -eq 409) { Write-Output "already published (409, immutable): $url"; return }
+            if ($code -lt 200 -or $code -ge 300) { throw "upload failed (HTTP $code): $url" }
+            Write-Output "published ($code): $url"
           }
           $files = @($env:HOST_SETUP_PATH, $env:HOST_CER_PATH) | Where-Object { $_ -and (Test-Path $_) }
           if (-not $files) { throw "pack produced no artifacts to publish" }

.gitea/workflows/windows-msix.yml

@@ -1,8 +1,9 @@
 # Build the punktfunk Windows client as signed MSIX packages (x64 + ARM64) and publish them to
 # Gitea's generic package registry, so Windows boxes can download + install a real package (Start
-# tile, clean install/uninstall) instead of a loose exe. Runs on the self-hosted Windows runner
-# (host mode; scripts/ci/setup-windows-runner.ps1) — the MSVC/WinUI/FFmpeg toolchain + the Windows
-# SDK's makeappx/signtool are baked into the runner's daemon env, same as windows.yml.
+# tile, clean install/uninstall) instead of a loose exe. Runs on a self-hosted windows-amd64
+# runner (host mode; the MSVC/WinUI toolchain comes from unom/infra's windows-runner/, FFmpeg
+# self-provisions via the "Ensure Windows toolchain" step below, same as windows.yml) — the
+# Windows SDK's makeappx/signtool are baked into the runner's daemon env.
 #
 # Both arches come off the ONE x64 runner: x86_64 natively, aarch64 cross-compiled (the x64 MSVC
 # toolset has the ARM64 cross compiler; the matrix points FFMPEG_DIR at the ARM64 FFmpeg tree). See
@@ -15,7 +16,8 @@
 #   vX.Y.Z tag -> X.Y.Z.0  (THE release; any -rc/+meta pre-release suffix is dropped for MSIX).
 #                Published to the generic registry + the stable `latest/` alias + attached to the
 #                unified Gitea Release alongside every other platform's artifact.
-#   main push / dispatch -> 0.3.<run_number>.0  (canary; climbs monotonically by run number).
+#   main push / dispatch -> <next-minor>.<run_number>.0  (canary; base is one minor ahead of the
+#                latest stable tag via scripts/ci/pf-version.ps1, run number climbs monotonically).
 #                Published to the generic registry + the `canary/` alias.
 # Both arches share the version; artifacts are arch-suffixed (..._x64.msix / ..._arm64.msix).
 #
@@ -62,6 +64,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Ensure Windows toolchain (WDK, FFmpeg, Inno Setup, ARM64 target)
+        shell: pwsh
+        run: ./scripts/ci/ensure-windows-toolchain.ps1
+
       - name: Configure + version
         shell: pwsh
         run: |
@@ -73,11 +79,13 @@ jobs:
           "CARGO_TARGET_DIR=${{ matrix.td }}" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
           "FFMPEG_DIR=${{ matrix.ffmpeg }}" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
           rustup target add ${{ matrix.target }}
+          $pf = & "$env:GITHUB_WORKSPACE/scripts/ci/pf-version.ps1"   # single source of truth: base is one minor ahead of the latest stable tag
           $parts = if ($env:GITHUB_REF -like 'refs/tags/v*') {
             # MSIX needs a purely-numeric 4-part version: drop any -rc/+meta pre-release suffix.
             (($env:GITHUB_REF_NAME -replace '^v', '') -replace '[-+].*$', '').Split('.')
           } else {
-            @('0', '3', $env:GITHUB_RUN_NUMBER)
+            # Canary: <major>.<minor>.<run>.0 — major.minor track one minor ahead of stable, run climbs monotonically.
+            @($pf.PF_MAJOR, $pf.PF_MINOR, $env:GITHUB_RUN_NUMBER)
           }
           while ($parts.Count -lt 4) { $parts += '0' }
           $v = ($parts[0..3] -join '.')
@@ -115,9 +123,15 @@ jobs:
           $files = @($env:MSIX_PATH, $env:MSIX_CER_PATH) | Where-Object { $_ -and (Test-Path $_) }
           if (-not $files) { throw "pack produced no artifacts to publish" }
           function Put($f, $url) {
-            curl.exe -fsS --user "enricobuehler:$($env:REGISTRY_TOKEN)" --upload-file "$f" "$url"
-            if ($LASTEXITCODE -ne 0) { throw "upload failed ($LASTEXITCODE): $url" }
-            Write-Output "published $url"
+            # The generic registry makes a versioned path immutable and 409s a re-upload, so a tag
+            # re-run re-publishing the identical artifact must be tolerated as a no-op. (The channel
+            # alias below is delete-then-reuploaded and never 409s.) No curl -f, so we can read the
+            # status code instead of aborting on it.
+            $code = [int](curl.exe -sS -o NUL -w "%{http_code}" --user "enricobuehler:$($env:REGISTRY_TOKEN)" --upload-file "$f" "$url")
+            if ($LASTEXITCODE -ne 0) { throw "upload failed (curl exit $LASTEXITCODE): $url" }
+            if ($code -eq 409) { Write-Output "already published (409, immutable): $url"; return }
+            if ($code -lt 200 -or $code -ge 300) { throw "upload failed (HTTP $code): $url" }
+            Write-Output "published ($code): $url"
           }
           foreach ($f in $files) {
             $name = Split-Path $f -Leaf

.gitea/workflows/windows.yml

@@ -1,5 +1,8 @@
-# Windows client CI — runs on the self-hosted Windows runner (home-windows-1, host mode; see
-# scripts/ci/setup-windows-runner.ps1). Build + clippy + fmt + test the WinUI 3 client
+# Windows client CI — runs on a self-hosted windows-amd64 runner (host mode; the generic runner +
+# toolchain come from unom/infra's windows-runner/; punktfunk's own extras - FFmpeg, WDK, Inno
+# Setup, the ARM64 rustup target - self-provision via the "Ensure Windows toolchain" step below, a
+# fast no-op once already present, so any runner with that label works with no manual dispatch
+# step first). Build + clippy + fmt + test the WinUI 3 client
 # (windows-reactor + D3D11/SwapChainPanel + WASAPI + SDL3).
 #
 # Two architectures from ONE x64 runner: x86_64-pc-windows-msvc natively and
@@ -61,6 +64,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Ensure Windows toolchain (WDK, FFmpeg, Inno Setup, ARM64 target)
+        shell: pwsh
+        run: ./scripts/ci/ensure-windows-toolchain.ps1
+
       - name: Configure + toolchain versions
         shell: pwsh
         run: |
@@ -68,9 +75,15 @@ jobs:
           # Per-arch short target root (dodges MAX_PATH; keeps the two legs from sharing target\).
           $td = if ('${{ matrix.target }}' -eq 'aarch64-pc-windows-msvc') { 'C:\t-a64' } else { 'C:\t' }
           "CARGO_TARGET_DIR=$td" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
-          # Per-arch FFmpeg import libs (the runner provisions both — setup-windows-runner.ps1).
+          # Per-arch FFmpeg import libs (provision-windows-punktfunk-extras.ps1 fetches both).
           $ff = if ('${{ matrix.target }}' -eq 'aarch64-pc-windows-msvc') { 'C:\Users\Public\ffmpeg-arm64' } else { 'C:\Users\Public\ffmpeg' }
           "FFMPEG_DIR=$ff" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
+          # $ff\bin on PATH too (not just FFMPEG_DIR, which only satisfies the linker): the test
+          # binary needs the actual DLLs to load at runtime. Set here rather than relying on the
+          # daemon's own env (project-env.ps1) - on a freshly cloned/registered runner the daemon
+          # starts before this job's "Ensure Windows toolchain" step ever writes that file, so its
+          # PATH doesn't include this yet on a first run (confirmed live: STATUS_DLL_NOT_FOUND).
+          "$ff\bin" | Out-File -FilePath $env:GITHUB_PATH -Append -Encoding utf8
           rustup target add ${{ matrix.target }}
           rustc --version
           cargo --version

.gitignore

@@ -31,3 +31,6 @@ xcuserdata/
 # Python bytecode (e.g. clients/android/ci tooling)
 __pycache__/
 *.pyc
+
+# Claude Code project instructions — local to each dev box, not part of the repo.
+CLAUDE.md

CLAUDE.md

@@ -1,387 +0,0 @@
-# CLAUDE.md — punktfunk
-
-Low-latency desktop/game streaming stack, Linux-first, with a shared Rust protocol core
-(`punktfunk-core`) exposed over a C ABI and native clients per platform. Full design:
-[`design/implementation-plan.md`](design/implementation-plan.md). Status table: `README.md`.
-
-## Where the work stands
-
-- **Core (`punktfunk-core` + C ABI): complete and hardened.** FEC recovery, loopback-under-loss,
-  proptests, C ABI harness all green; 13 adversarial-review findings fixed +
-  regression-tested (`a913042`).
-- **GameStream host: working end-to-end with a stock Moonlight client.** Validated live
-  on this box: pairing (persists across restarts), serverinfo/applist (app catalog from
-  `~/.config/punktfunk/apps.json` → each entry picks a compositor + nested command), RTSP, ENet
-  control, audio, and video at the **client's native resolution and refresh** — the host
-  creates a per-session virtual output via per-compositor `VirtualDisplay` backends:
-  **KWin** (`zkde_screencast stream_virtual_output`, needs KWin ≥ 6.5.6 headless; >60 Hz via
-  custom modes), **gamescope** (spawned headless at WxH@Hz, its PipeWire node captured, needs
-  gamescope ≥ 3.16.22 — older deadlocks on PipeWire ≥ 1.6), **Mutter** (D-Bus
-  `RecordVirtual` virtual monitor; validated live on headless GNOME Shell 50, zero-copy),
-  **Sway/wlroots** (`swaymsg create_output` + custom mode, xdpw portal capture with a
-  managed chooser config; validated live on sway 1.11, zero-copy).
-  Performance work landed and measured: GPU **zero-copy** on all paths (tiled dmabuf →
-  EGL/GL → CUDA; LINEAR dmabuf → **Vulkan bridge** → CUDA → NVENC), auto 2-way NVENC
-  split-encode above ~1 Gpix/s (5K@240), infinite GOP + RFI keyframes (killed the periodic
-  freeze), encode|send thread split with `sendmmsg` batching. Stable 240 fps at 5120×1440.
-  Input: mouse/keyboard (libei via RemoteDesktop portal on KWin/GNOME, gamescope's own EIS
-  socket, wlr protocols on Sway) and **gamepads** (uinput X-Box-360 pads + rumble
-  back-channel; validated live — pad created/destroyed with the session). Management REST API +
-  checked-in OpenAPI doc (`mgmt.rs`). **Web-console performance capture** (`stats_recorder.rs`,
-  design: [`design/stats-capture-plan.md`](design/stats-capture-plan.md)): the operator arms stats
-  recording from the web console, plays, stops, and reviews the run as graphs (per-stage latency
-  breakdown · fps new/repeat · goodput · loss/FEC). A shared `Arc<StatsRecorder>` ring (the hot-path
-  gate is a runtime `AtomicBool`, replacing the startup-only `PUNKTFUNK_PERF`) is fed by **both** the
-  native `virtual_stream` and the GameStream encode loop at their existing ~2 s/~1 s aggregation
-  boundary, and finished captures are saved as on-disk recordings
-  (`~/.config/punktfunk/captures/*.json`) browsable/exportable from the console's **Performance** page
-  (recharts). Endpoints `/api/v1/stats/*` (bearer-only). *Implemented; not yet on-glass validated.*
-- **Native protocol (`punktfunk/1`): full session planes, validated live.** QUIC
-  control plane (`punktfunk-core` `quic` feature: Hello{mode}/Welcome{full Config}/Start), data
-  plane = the hardened core `Session` over raw UDP with **GF(2¹⁶) Leopard FEC + AES-GCM**
-  (inexpressible in GameStream), host creates the native virtual output at the client's
-  requested mode. `punktfunk1-host` is a **persistent listener** (sessions back to back;
-  `--max-sessions`). QUIC datagrams carry the side planes, demuxed by first byte: input
-  0xC8 (incl. **gamepads** — incremental events accumulated into the uinput xpad), **Opus
-  audio** 0xC9 (48 kHz stereo, 5 ms, host→client), **rumble** 0xCA (host→client). **Trust:**
-  host serves its persistent identity (`~/.config/punktfunk/cert.pem`, shared with GameStream
-  pairing) and logs the SHA-256 fingerprint; clients pin it, established by a **SPAKE2 PIN pairing
-  ceremony** (host arms pairing and displays a 4-digit PIN; a PAKE binds both cert fingerprints so an
-  attacker gets one online guess, no offline dictionary attack) — PIN pairing is the default for new
-  hosts. **TOFU on first connect** (`endpoint::client_pinned`) stays as an explicit host opt-in
-  (`punktfunk1-host --allow-tofu` / `serve --open`, advertised as `pair=optional`) for fully trusted LANs;
-  clients only offer the TOFU "Trust" path for a host that advertised `pair=optional`, route every
-  other new host straight to the PIN ceremony, and on a pinned-fingerprint change force re-pairing
-  (no re-TOFU shortcut). Clients present persistent identities via QUIC client auth, the host stores
-  paired fingerprints (`punktfunk1-paired.json`) and gates sessions with `--require-pairing` (the
-  default; `--allow-tofu`/`--open` accept unpaired clients).
-  **LAN auto-discovery**: both `serve` and `punktfunk1-host` advertise the native service over
-  mDNS (`_punktfunk._udp`, `crate::discovery`) with TXT `proto`/`fp`(cert fingerprint to
-  pin)/`pair`(required|optional)/`id`; `punktfunk-probe --discover` lists hosts, Apple clients
-  browse the same service via NWBrowser (validated cross-LAN 2026-06-12).
-  **Mid-stream mode renegotiation**: `Reconfigure` on the still-open control stream — the
-  host rebuilds output+encoder at the new mode in ~90 ms while the data plane runs on
-  (validated live: one .h265 with 720p and 1080p segments). Measured on-box at 720p120: 1680/1680 frames, **p50 0.83 ms**
-  capture→…→reassembled; audio measured live (~200 pkts/s). A **wall-clock skew handshake**
-  (`ClockProbe`/`ClockEcho`, 8 NTP rounds after `Start`, `clock_offset_ns`) aligns the client to the
-  host clock, so that latency is now valid **cross-machine** (`skew_corrected=true`) — measured GNOME
-  box → dev box over the LAN: **p50 1.30 ms** (the −1.57 ms inter-box clock offset removed).
-  `punktfunk-probe` is the
-  working reference client (`--pin`, datagram counters, `--input-test` incl. gamepad).
-  The embeddable connector (`NativeClient`) exposes it all over the C ABI: `punktfunk_connect`
-  (pin/TOFU) + `next_au`/`next_audio`/`next_rumble`/`next_hidout`/`send_input`/
-  `send_rich_input`. **Client-negotiated virtual pad type**: the Hello carries a gamepad
-  preference byte (same trailing-byte back-compat pattern as the compositor), the Welcome
-  echoes the resolved backend — precedence: explicit client choice > `PUNKTFUNK_GAMEPAD`
-  env > uinput Xbox 360. Backends: **Xbox 360** (uinput / ViGEm), **Xbox One/Series** (the same
-  XInput backend with the One/Series USB identity for matching glyphs — no extra game-visible
-  capability; impulse-trigger rumble is unreachable through a virtual pad), and the UHID
-  `hid-playstation` pads — **DualSense** (adaptive triggers, lightbar, touchpad, motion) and
-  **DualShock 4** (lightbar, touchpad, motion, rumble; DualSense minus adaptive triggers / player
-  LEDs / mute). DualSense and DualShock 4 each have a Linux (UHID `hid-playstation`) **and a Windows
-  (UMDF minidriver)** backend — `inject/dualsense_windows.rs` + `inject/dualshock4_windows.rs`, one
-  driver serving either identity per a `device_type` byte the host stamps into shared memory (the DS4
-  reuses the same SwDeviceCreate game-detection identity fix as the DualSense). One/Series stays
-  Linux-only and folds into Xbox 360 off it. Clients auto-resolve the type from the physical controller
-  (DS5→DualSense, DS4→DualShock 4, Xbox One→Xbox One). **Windows uses ZERO external gamepad
-  dependencies — ViGEmBus is gone.** Xbox 360 (XInput) runs on a UMDF2 **XUSB companion** driver
-  (`packaging/windows/xusb-driver/`, `inject/gamepad_windows.rs`) that registers `GUID_DEVINTERFACE_XUSB`
-  and answers the buffered XInput IOCTLs from a shared section, so classic `XInputGetState`/`SetState`
-  work with no kernel bus driver (validated live: slot connected, state + rumble round-trip; Xbox One
-  folds to this 360 path). All three UMDF drivers (DualSense/DS4 + XUSB) are bundled + pnputil-installed
-  by the Inno Setup installer (`packaging/windows/gamepad-drivers/` + `install-gamepad-drivers.ps1`).
-  **Multi-pad ready**: the host stamps each pad's index into the device Location (`pszDeviceLocation`),
-  the driver reads it (`WdfDeviceAllocAndQueryProperty`) to map its own `*-shm-<index>`, and
-  `UmdfHostProcessSharing=ProcessSharingDisabled` gives each pad its own host (per-pad statics) —
-  validated live with 2 distinct XInput slots + 2 DualSense pads. (Client-side multi-pad forwarding is
-  the remaining piece.)
-- **Windows host: implemented and shipping (all-vendor, x64-only).** `#[cfg(windows)]` backends
-  behind the same traits as Linux — DXGI Desktop Duplication capture (`capture/dxgi.rs`), **SudoVDA**
-  virtual display per session (`vdisplay/sudovda.rs`), GPU encode (NVENC `--features nvenc`; AMD/Intel
-  `--features amf-qsv`), SendInput + **ViGEm** gamepads (`inject/gamepad_windows.rs`), WASAPI loopback
-  + virtual mic (`audio/wasapi_*`). Ships as a **signed Inno Setup installer** that registers a
-  `LocalSystem` SCM service launching into the interactive session for secure-desktop (UAC/lock-screen)
-  capture (`service.rs`), bundles the SudoVDA driver + the FFmpeg DLLs, and is published by
-  `windows-host.yml`. **Encoder is GPU-aware** (`encode.rs` `open_video` + `windows_resolved_backend`):
-  `PUNKTFUNK_ENCODER=auto` (the host.env default) detects the DXGI adapter vendor → **NVENC** (NVIDIA,
-  direct SDK, `encode/nvenc.rs`), **AMF** (AMD) / **QSV** (Intel) via libavcodec
-  (`encode/ffmpeg_win.rs`, the Windows analogue of the Linux VAAPI backend — `WinVendor{Amf,Qsv}`,
-  system-memory NV12/P010 readback default + opt-in zero-copy D3D11 behind `PUNKTFUNK_ZEROCOPY` with a
-  system fallback), or software H.264 (`encode/sw.rs`, GPU-less). GameStream codec advertisement is
-  probed per-GPU on AMF/QSV (`windows_codec_support` → `serverinfo`, AV1 gated). **HDR (10-bit)**: WGC
-  captures the HDR desktop as FP16/Rgb10a2 (DDA FP16 for the secure desktop), the encoder forces HEVC
-  Main10 + BT.2020 PQ (NVENC ABGR10/P010; AMF/QSV P010 + a swscale Rgb10a2→P010 fallback), the client
-  auto-detects PQ from the HEVC VUI — gated by `PUNKTFUNK_10BIT` + client `VIDEO_CAP_10BIT`; **Windows
-  host only** (the Linux host stays 8-bit, blocked upstream). **Vulkan-game HDR over the virtual
-  display**: NVIDIA/AMD Vulkan ICDs refuse to *advertise* an HDR color space for a surface on an IddCx
-  indirect display (so Vulkan games — Doom: The Dark Ages, id Tech, etc. — say "device does not support
-  HDR"), even though the ICD happily *accepts + presents* a forced HDR swapchain there. A tiny always-on
-  Vulkan **implicit layer** (`packaging/windows/pf-vkhdr-layer/`, `VK_LAYER_PUNKTFUNK_hdr_inject`)
-  injects the `HDR10_ST2084`/scRGB surface formats into `vkGetPhysicalDeviceSurfaceFormats[2]KHR`,
-  self-gated on the display's actual advanced-color state (no-op on SDR / real monitors); bundled +
-  HKLM-registered by the installer. **Live-validated: Doom: The Dark Ages enables HDR over the virtual
-  display.** **AMF/QSV is CI-green but not yet on-glass validated** (no AMD/Intel Windows box in the
-  lab); NVENC is live-validated. Newer/less battle-tested than the Linux host. Packaging: `packaging/windows/`.
-
-## What's left
-
-1. **Native clients — decode + present: macOS stage 1 done, first light achieved
-   (2026-06-10).** PunktfunkKit compiles and is tested on macOS (AnnexB → VideoToolbox →
-   `AVSampleBufferDisplayLayer`, GCMouse/GCKeyboard capture, `PunktfunkClient` app shell);
-   validated live Mac ↔ this box at 720p60 — vkcube on glass, input injected via gamescope
-   EIS. The app speaks the full ABI v2 trust surface: Keychain-persisted client identity
-   presented on every connect, SPAKE2 PIN pairing UI (host-card context menu + the trust
-   prompt's "Pair with PIN instead…"), TOFU fingerprint prompt. **Gamepads (2026-06-11):**
-   controller discovery + selection in Settings (`GamepadManager` — exactly one pad
-   forwarded as pad 0, auto or pinned; pad TYPE auto-resolves from the physical
-   controller, user-overridable), capture incl. DualSense touchpad/motion
-   (`GamepadCapture`/`GamepadWire`), feedback rendering (rumble → CoreHaptics; lightbar /
-   player LEDs / adaptive triggers → `GCDeviceLight`/`playerIndex`/
-   `GCDualSenseAdaptiveTrigger` via the table-driven `DualSenseTriggerEffect` parser).
-   Loopback-tested end to end (`PUNKTFUNK_TEST_FEEDBACK=1` scripted burst); DualSense
-   motion sign/scale derived, not yet live-verified. Tests: `swift test` in
-   `clients/apple` (unit + real-codec round trip),
-   `test-loopback.sh` (Swift client vs synthetic punktfunk1-hosts on loopback — runs on macOS;
-   includes the pairing ceremony + `--require-pairing` gate),
-   `RemoteFirstLightTests` (full pipeline over the LAN). See
-   [`clients/apple/README.md`](clients/apple/README.md). **Stage 2 presenter is now the DEFAULT**
-   (stage-1 is the Metal-unavailable / DEBUG fallback): explicit `VTDecompressionSession` decode →
-   `CAMetalLayer`, presented from the hosting view's **main-runloop `CADisplayLink`** (`renderTick` pops
-   the newest ready frame per vsync; macOS `displaySyncEnabled = false` is the real fullscreen-judder fix,
-   ~11 ms p50). *(An off-main `CAMetalDisplayLink` and an off-main blocking-render present thread were
-   both tried and reverted — both measured slower on macOS and iPad.)* **HDR fixed**
-   (`design/apple-stage2-presenter.md`): the "too bright" bug was a missing reference-white anchor — the
-   fix keeps the PQ-passthrough shader and adds `CAEDRMetadata.hdr10(…, opticalOutputScale: 203)` +
-   `wantsExtendedDynamicRangeContent` on the layer (on all platforms; the old `#if os(macOS)` guard left
-   iOS/tvOS EDR half-engaged), routing the 0xCE mastering metadata to the layer (via `setHdrMeta`) instead
-   of a never-composited source buffer. **Mid-session SDR↔HDR** is handled: `render` reconciles the layer
-   per-frame from the decoded `frame.isHDR` (per-mode pixel format `bgra8`/`rgba16Float`), so a game
-   entering HDR mid-stream just reconfigures (last 0xCE grade cached + re-applied; pump drains 0xCE
-   unconditionally). **4:4:4 added**: decode format is a 2×2 `(chroma, HDR)` matrix
-   (`420v/x420/444v/x444`, all biplanar so the shaders are unchanged), advertised (`VIDEO_CAP_444`) only
-   behind a **hardware-required `VTDecompressionSession` probe** (`Stage444Probe`, validated on M3) with a
-   Settings opt-out + a bounded pump backstop for an undecodable 4:4:4 session. *HDR brightness + 4:4:4
-   still need on-glass validation (Windows-HDR / `PUNKTFUNK_444` host).* Next: glass-to-glass numbers via
-   `tools/latency-probe`.
-   **Linux stage 1 done, first light 2026-06-12** (`clients/linux`, binary
-   `punktfunk-client`): GTK4/libadwaita shell linking `punktfunk-core` directly (no C ABI;
-   `NativeClient` is now `Sync` — mutexed plane receivers), mDNS host list, TOFU + SPAKE2
-   PIN dialogs (identity shared with client-rs), FFmpeg software HEVC decode (LOW_DELAY,
-   slice threads) → `GtkGraphicsOffload`-wrapped picture, PipeWire playback (mic-player
-   jitter ring inverted), SDL3 gamepad capture + rumble/lightbar feedback, keyboard via
-   exact inverse of the host VK table, absolute mouse + 120-unit scroll. Validated live
-   against `serve` on this box: 1080p60, steady 60 fps, capture→decoded p50
-   ≈6.4 ms (debug build). `--connect host[:port]` for scripting. **Swift-parity batch +
-   stage 1.5 (2026-06-12 evening)**: capture state machine (click-to-capture,
-   Ctrl+Alt+Shift+Q / focus-loss release, held-state flush), app-lifetime SDL gamepad
-   service (pad pin UI, auto type from the physical pad, DualSense touchpad/motion 0xCC +
-   raw-DS5-effects trigger/player-LED replay — needs a physical pad to live-verify), mic
-   uplink (validated live), per-host speed test, compositor pref, native-display mode
-   default, saved-hosts list, .deb + RPM-subpackage CI (deb.yml/rpm.yml). **VAAPI decode
-   → DRM-PRIME dmabuf → `GdkDmabufTexture`** (BT.709 color state; Tier-1 zero-copy on
-   Intel/AMD, `PUNKTFUNK_DECODER=software|vaapi` override) with a proven fallback ladder —
-   no VAAPI device (NVIDIA) or mid-session VAAPI error → software decode. **First AMD test
-   (Steam Deck) hit a green-screen bug, fixed:** FFmpeg's VAAPI export uses
-   `SEPARATE_LAYERS`, so NV12 arrives as two single-plane layers (R8 luma + GR88 chroma,
-   one shared fd); the mapper took `layers[0]` only → GTK got a luma-only R8 texture, chroma
-   read as 0 → green field / red whites. Fix derives the combined fourcc from the decoder
-   `sw_format` (→ `DRM_FORMAT_NV12`) and flattens all planes across all layers (mpv's
-   pattern); a first-frame descriptor dump logs the real layout. Awaiting Steam Deck
-   reconfirm. Next: the stage-2 raw-Wayland
-   presenter (wp_presentation feedback, tearing-control, Vulkan Video on NVIDIA) —
-   **wgpu/winit rejected** (no dmabuf import / presentation feedback / shortcuts-inhibit).
-   **Windows stage 1 done 2026-06-15** (`clients/windows`, binary
-   `punktfunk-client`): pure-Rust **WinUI 3** UI via **windows-reactor** (a declarative React-like
-   framework backed by WinUI; PR #4499 added the `SwapChainPanel` widget + `set_swap_chain`). The
-   video is a **`SwapChainPanel`** bound to a **D3D11 composition swapchain** (WARP fallback for
-   the GPU-less dev box; runtime-compiled fullscreen-triangle shaders, Contain-fit letterbox),
-   driven by reactor's per-frame `on_rendering`. **FFmpeg HEVC decode with a D3D11VA
-   zero-copy hardware path** (`gpu.rs` shares one D3D11 device — hardware+`VIDEO_SUPPORT`, WARP
-   fallback, multithread-protected — between the decoder and presenter; the decoder outputs
-   NV12/P010 `ID3D11Texture2D` array slices with `BIND_SHADER_RESOURCE` and the presenter samples
-   them via per-plane SRVs + YUV→RGB shaders — NV12/BT.709, P010/BT.2020-PQ; **software CPU decode
-   stays as the robust fallback**, auto-selected with a `DecoderPref` override). **HDR10**: the
-   client advertises 10-bit/HDR (Settings toggle), detects PQ in-band (`transfer == SMPTE2084`),
-   and flips the swapchain to `R10G10B10A2` + ST.2084 with HDR10 metadata. **WASAPI** render + mic
-   capture, **SDL3** gamepads (rumble/lightbar/DualSense), `mdns-sd` discovery, and the full trust
-   surface — all **in-app**: a polished WinUI shell (host cards w/ monogram + status pills,
-   `InfoBar` errors/hints, `ToggleSwitch` settings, status-chip stream HUD showing GPU/CPU decode +
-   HDR), host list (live mDNS + saved + manual), settings (resolution/refresh/decoder/bitrate/HDR/
-   mic), SPAKE2 PIN pairing screen, TOFU, pinned-fp-mismatch re-pair. **(D3D11VA + HDR present + the
-   GUI polish are written against the windows-rs/reactor APIs but not yet on-glass validated — the
-   dev VM is headless/WARP; needs the RTX box.)** **Stream input** is Win32 low-level hooks (`WH_KEYBOARD_LL`/`WH_MOUSE_LL`) — reactor
-   exposes no raw key/pointer events; native Windows VK + absolute mouse (client-rect Contain-fit) +
-   wheel, Ctrl+Alt+Shift+Q capture toggle. `--headless`/`--discover` keep CLI paths. Builds + clippy
-   + fmt green on **`x86_64-pc-windows-msvc` and `aarch64-pc-windows-msvc`** — the latter
-   **cross-compiled off the one x64 runner** (no ARM64 runner; the x64 MSVC toolset's ARM64 cross
-   compiler + a per-arch `FFMPEG_DIR` ARM64 tree, SDL3/libopus build-from-source cross-compile
-   cleanly), and both ship as signed MSIX (`windows-msix.yml` matrix → `..._x64.msix`/`..._arm64.msix`,
-   verified: ARM64 binaries + manifest arch). **windows-reactor is unpublished** (git
-   dep pinned to commit `b4129fcc`; `windows` pinned to the SAME commit so `IDXGISwapChain1` unifies
-   with `set_swap_chain`); its `build.rs` downloads the Win App SDK NuGets + needs `CARGO_WORKSPACE_DIR`
-   set (in the VM build env; `/temp`+`/winmd` gitignored). Gotcha: `CARGO_HOME` must be an ASCII path
-   — the `ü` in the dev box's username breaks SDL3's MSVC precompiled-header build. Next: **on-glass
-   validation** of the D3D11VA decode + HDR present + GUI on the RTX box (the dev VM is
-   headless/Session-0/WARP → the WinUI window + hardware decode need a real display+GPU: RDP or the
-   RTX box), then RAWINPUT relative-mouse pointer-lock and a per-host speed test in the UI.
-   **Android stage 1 done** (`clients/android`, Kotlin app + `native/` Rust JNI core linking
-   `punktfunk-core`; phone + Android TV): NDK `AMediaCodec` hardware HEVC decode → `SurfaceView` incl.
-   **HDR10** (Main10/BT.2020 PQ) with low-latency tuning + a live stats HUD (`decode.rs`/`stats.rs`),
-   Opus/Oboe audio + mic uplink (`audio.rs`/`mic.rs`), gamepad input with rumble/HID feedback
-   (`feedback.rs`), **native `mdns-sd` mDNS discovery** (`discovery.rs`, polled over JNI — the same
-   browse the Linux/Windows clients use, replacing the flaky per-OEM `NsdManager`; Kotlin keeps only
-   the `MulticastLock` + permission UX), SPAKE2 PIN pairing + TOFU (Keystore identity +
-   known-host store), Compose UI (Connect/Settings/Stream) with D-pad/controller focus nav. Built for
-   `arm64-v8a` + `x86_64`; published to Google Play (Internal Testing) via `android.yml`
-   (`ci/play-upload.py`). Next: real-device gamepad/HDR live-verify, presenter/latency polish.
-2. **Sub-frame pipelining**: overlap encode and transmit within a frame. Requires a direct
-   NVENC SDK wrapper (libavcodec only emits whole AUs) — the next big latency lever (~2–4 ms
-   at high res).
-3. **punktfunk/1 protocol growth.** **Done:** unified host (`serve --gamestream` runs GameStream + the
-   punktfunk/1 QUIC host in one process; bare `serve` is the secure native-only default — GameStream is
-   opt-in, trusted-LAN only, security-review #5/#9) with native pairing driven over the mgmt API /
-   web console (`mod native_pairing`: arm-on-demand → display PIN, paired-device list).
-   **Done:** PIN pairing is the default, host-gated — the host requires pairing and advertises
-   `pair=required` unless opted out with `--allow-tofu`/`--open` (then `pair=optional`, accepts
-   unpaired clients); clients render TOFU only for a `pair=optional` host and force re-pairing on a
-   fingerprint change. **Done:** concurrent sessions — the accept loop spawns each session
-   (`--max-concurrent`, default 4, an NVENC bound), each with its own virtual output + encoder, sharing
-   the host-lifetime input/audio/mic services (shared-desktop multi-view on kwin/mutter/wlroots).
-   **Done:** delegated pairing approval (§8b-1) — an unpaired device shows up as a pending request in
-   the web console, one click approves + pins it. Next (see roadmap): gamescope multi-user isolation
-   (per-session input/audio = independent desktops); §8b-2 peer-push approval from a paired device's
-   own app.
-4. **GameStream host polish**: HDR/10-bit (needs HDR capture + metadata plumbing; `av1_nvenc
-   -highbitdepth 1` already encodes Main10 from 8-bit input on this box),
-   reconnect-at-new-mode robustness. AV1 negotiation and surround audio are implemented
-   and unit/live-capture tested — both still need a live Moonlight confirmation (select
-   AV1 in a stock client; a real 5.1/7.1 listen incl. FEC under loss).
-
-Box one-time setup is complete: udev rule + `input` group (gamepads validated live),
-gamescope 3.16.22 installed system-wide (no PATH override), gnome-shell installed (Mutter
-backend validated live). All three compositor backends are live-validated.
-
-## Build / test / run
-
-```sh
-cargo build --workspace          # green on Linux and macOS
-cargo test  --workspace          # unit + loopback + proptest + C ABI harness (~100 tests)
-cargo clippy --workspace --all-targets -- -D warnings
-cargo fmt --all --check
-
-cargo run -p loss-harness        # FEC loss-resilience sweep (no network needed)
-bash crates/punktfunk-core/tests/c/run.sh   # standalone C-ABI link + round-trip proof
-```
-
-Generated artifacts are **checked in** and CI fails on drift: `include/punktfunk_core.h`
-(cbindgen from `punktfunk-core/src/abi.rs`) and `api/openapi.json` (regenerate with
-`cargo run -p punktfunk-host -- openapi > api/openapi.json`; spec lives in `mgmt.rs`).
-
-CI is Gitea Actions (`.gitea/workflows/`, guide: docs-site `ci.md`): `ci.yml` runs the
-workspace checks inside the `git.unom.io/unom/punktfunk-rust-ci` image plus web/docs-site
-build+typecheck; `docker.yml` builds+pushes the web/docs/rust-ci images (host and native
-clients are deliberately NOT containerized); `apple.yml` builds the xcframework and runs
-`swift build`/`swift test` on the `macos-arm64` host-mode runner (home-mac-mini-1,
-provisioned by `scripts/ci/setup-macos-runner.sh`). Per-client/host release workflows:
-`deb.yml`/`rpm.yml`/`flatpak.yml` (Linux client), `android.yml` (Google Play), `windows-msix.yml`
-(Windows client), `windows-host.yml` (Windows host installer), `release.yml` (Apple notarized DMG +
-TestFlight), `decky.yml` (Steam Deck plugin); Windows builds run on a self-hosted Windows runner.
-
-## Layout
-
-```
-crates/punktfunk-core/        protocol · FEC · crypto · quic (punktfunk/1 control plane, feature-gated)
-crates/punktfunk-host/
-  gamestream/             Moonlight compat: nvhttp · pairing · rtsp · control · stream · gamepad · apps
-  vdisplay/{kwin,gamescope,mutter,wlroots}.rs   per-compositor client-sized virtual outputs
-  zerocopy/{egl,cuda,vulkan}.rs         dmabuf → CUDA → NVENC (tiled via EGL/GL, LINEAR via Vulkan)
-  inject/{libei,wlr,gamepad,dualsense}.rs   input backends (uinput xpad + UHID DualSense)
-  encode/{nvenc,linux,vaapi,ffmpeg_win,sw}.rs   per-GPU encoders (NVENC · Linux NVENC/CUDA · VAAPI · AMF/QSV · openh264)
-  capture.rs · encode.rs · audio.rs · spike.rs · punktfunk1.rs · mgmt.rs · native_pairing.rs · stats_recorder.rs
-clients/probe/    punktfunk/1 reference/probe client (headless test/measurement tool)
-clients/linux/    native Linux client (GTK4/libadwaita · FFmpeg · PipeWire · SDL3)
-clients/windows/  native Windows client (WinUI 3 via windows-reactor · D3D11 · WASAPI · SDL3)
-clients/apple/    native macOS/iOS/tvOS client (Swift · VideoToolbox · GameController)
-clients/android/  native Android client (Kotlin app + native/ Rust JNI core over punktfunk-core)
-clients/decky/    Steam Deck Decky plugin
-crates/punktfunk-host/src/{capture/dxgi,vdisplay/sudovda,encode/ffmpeg_win,inject/gamepad_windows,audio/wasapi_*,service}.rs   Windows host backends
-web/                          TanStack web console over the mgmt API (status · devices · pairing · performance graphs)
-packaging/                    apt(deb) · RPM/COPR · Arch/sysext · Flatpak · Bazzite bootc · Windows host installer (per-dir READMEs)
-tools/{loss-harness,latency-probe}/     measurement (plan §10)
-scripts/                  60-punktfunk.rules · punktfunk-host.service · host.env.example · headless/
-include/punktfunk_core.h      generated C header
-```
-
-## Design invariants — do not regress
-
-- **One core, linked everywhere.** Protocol/FEC/crypto live only in `punktfunk-core`, behind a
-  stable, versioned C ABI. `tokio`/`quinn` exist only behind the `quic` feature (control
-  plane); **no async on the per-frame path** — native threads only.
-- **Native client resolution, no scaling.** A session gets a virtual output at exactly the
-  client's WxH@Hz via the `VirtualDisplay` trait (`create(mode) → VirtualOutput { node_id,
-  remote_fd, preferred_mode, keepalive }`, RAII teardown). There is no cross-compositor
-  protocol for this — each compositor keeps its own backend.
-- **FEC is the wall-breaker.** GF(2⁸) (≤255 shards/block, Moonlight-compatible) and GF(2¹⁶)
-  Leopard (≤65535 shards/block) — punktfunk/1 negotiates the latter, removing the ~1 Gbps
-  ceiling.
-- **Core security hardening stays intact**: reassembler bounds attacker-controlled fields
-  before allocating (`ReassemblerLimits`); AES-GCM per-direction nonce salts + seq-as-AAD;
-  ABI `struct_size` checks. Regression tests exist — keep them green.
-- **PipeWire consumer discipline**: our capture streams set `node.dont-reconnect` and tear
-  down promptly on negotiation timeout — one wedged link head-blocks the daemon's shared
-  work queue system-wide.
-
-## Running on this box
-
-Headless QEMU VM (Ubuntu 26.04, kernel 7.0), passthrough RTX 5070 Ti (driver 595 **open**
-module — a kernel update silently drops it; reinstall `nvidia-driver-595-open`), no KMS
-scanout → KWin `--drm` impossible; everything renders offscreen via `renderD128`.
-
-```sh
-# compositor session (shell 1, or the systemd unit in scripts/): full headless Plasma.
-# The script sets XDG_MENU_PREFIX=plasma- & co. — without it plasmashell runs but the
-# launcher menu is EMPTY (no apps, no System Settings).
-bash scripts/headless/run-headless-kde.sh 1920x1080
-
-# host (shell 2): bare `serve` is native-only (secure default); add --gamestream for Moonlight compat.
-WAYLAND_DISPLAY=wayland-kde XDG_CURRENT_DESKTOP=KDE PUNKTFUNK_VIDEO_SOURCE=virtual \
-PUNKTFUNK_ZEROCOPY=1 cargo run -rp punktfunk-host -- serve --gamestream
-
-# punktfunk/1 native loopback test (no Moonlight needed; same env as serve, listener persists
-# across sessions — bound it with --max-sessions):
-cargo run -rp punktfunk-host -- punktfunk1-host --source virtual --seconds 10 --max-sessions 1
-cargo run -rp punktfunk-probe -- --mode 1280x720x120 --out /tmp/a.h265 --input-test  # + --pin HEX
-```
-
-Pinned crate facts: `ashpd` 0.13 + `pipewire` 0.9 (must match ashpd's) + `ffmpeg-next` 8.x
-(`ffmpeg-sys-next` auto-detects the system FFmpeg, so it builds against **FFmpeg 7.x/libavcodec 61
-or 8.x/libavcodec 62** — validated live on Ubuntu 26.04 (8) and Bazzite F43 (7.1); the zero-copy
-FFI also link-needs `libGL`/`libgbm`/`libcuda` at build time). Env knobs: `PUNKTFUNK_VIDEO_SOURCE=virtual|portal`,
-`PUNKTFUNK_COMPOSITOR=kwin|gamescope|mutter`, `PUNKTFUNK_ZEROCOPY=1`, `PUNKTFUNK_GAMESCOPE_APP=...`,
-`PUNKTFUNK_INPUT_BACKEND=...`, `PUNKTFUNK_PERF=1` (per-stage timing), `PUNKTFUNK_VIDEO_DROP=N` (FEC
-test), `PUNKTFUNK_FEC_PCT=N`, `PUNKTFUNK_DSCP=1` (opt-in DSCP/SO_PRIORITY media QoS on the data +
-GameStream video/audio sockets; no-op on the wire on Windows without a qWAVE policy),
-`PUNKTFUNK_444=1` (full-chroma HEVC 4:4:4, see below).
-
-**HEVC 4:4:4 (full chroma, Range Extensions)**: opt-in via `PUNKTFUNK_444`, negotiated like 10-bit —
-the host emits 4:4:4 only when the client advertised `VIDEO_CAP_444` (wire bit `0x04` + ABI
-`PUNKTFUNK_VIDEO_CAP_444`), the codec is HEVC, the session is single-process, **and** a GPU probe
-(`encode::can_encode_444`, run before the Welcome) confirms support — else it resolves to 4:2:0 and
-`Welcome::chroma_format` reflects the real value (honest downgrade; the client reads it via
-`punktfunk_connection_chroma_format`). **punktfunk/1-native only** — GameStream/Moonlight stays 4:2:0
-(stock clients can't decode 4:4:4). **NVENC is the implemented path**: Linux `hevc_nvenc` feeds a
-swscale'd `yuv444p` (RGB-in is always 4:2:0 — verified on the RTX 5070 Ti — so the session forces CPU
-RGB capture for 4:4:4); Windows NVENC keeps ARGB input + FREXT profile + `chromaFormatIDC=3` and the
-DDA capturer delivers RGB. VAAPI / AMF / QSV **decline** (probe returns false — no validated 4:4:4
-hardware in the lab; they'd produce 4:2:0). Software (openh264) is 4:2:0-only. Test with
-`PUNKTFUNK_CLIENT_444=1 punktfunk-probe --out x.h265` then `ffprobe x.h265` (expect `pix_fmt yuv444p`).
-*Linux NVENC mechanism validated on the RTX 5070 Ti (ffmpeg CLI); Windows NVENC + 10-bit-4:4:4 not yet
-on-glass validated.*
-
-## Conventions
-
-- Rust 2021, `rustfmt` + `clippy -D warnings` clean before commit.
-- Match the surrounding code's comment density and naming.
-- Commit messages end with the Co-Authored-By trailer (see `git log`).
-- `pkill` caution on this box: match exact comm names (`pkill -x gamescope-wl`,
-  `pkill -x punktfunk-host`) — `pkill -f` self-matches the invoking shell.

Cargo.lock

@@ -228,6 +228,67 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "async-executor"
+version = "1.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c96bf972d85afc50bf5ab8fe2d54d1586b4e0b46c97c50a0c9e71e2f7bcd812a"
+dependencies = [
+ "async-task",
+ "concurrent-queue",
+ "fastrand",
+ "futures-lite",
+ "pin-project-lite",
+ "slab",
+]
+
+[[package]]
+name = "async-io"
+version = "2.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "456b8a8feb6f42d237746d4b3e9a178494627745c3c56c6ea55d92ba50d026fc"
+dependencies = [
+ "autocfg",
+ "cfg-if",
+ "concurrent-queue",
+ "futures-io",
+ "futures-lite",
+ "parking",
+ "polling",
+ "rustix",
+ "slab",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "async-lock"
+version = "3.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "290f7f2596bd5b78a9fec8088ccd89180d7f9f55b94b0576823bbbdc72ee8311"
+dependencies = [
+ "event-listener",
+ "event-listener-strategy",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "async-process"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc50921ec0055cdd8a16de48773bfeec5c972598674347252c0399676be7da75"
+dependencies = [
+ "async-channel",
+ "async-io",
+ "async-lock",
+ "async-signal",
+ "async-task",
+ "blocking",
+ "cfg-if",
+ "event-listener",
+ "futures-lite",
+ "rustix",
+]
+
 [[package]]
 name = "async-recursion"
 version = "1.1.1"
@@ -239,6 +300,30 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "async-signal"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52b5aaafa020cf5053a01f2a60e8ff5dccf550f0f77ec54a4e47285ac2bab485"
+dependencies = [
+ "async-io",
+ "async-lock",
+ "atomic-waker",
+ "cfg-if",
+ "futures-core",
+ "futures-io",
+ "rustix",
+ "signal-hook-registry",
+ "slab",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "async-task"
+version = "4.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b75356056920673b02621b35afd0f7dda9306d03c79a30f5c56c44cf256e3de"
+
 [[package]]
 name = "async-trait"
 version = "0.1.89"
@@ -434,6 +519,19 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "blocking"
+version = "1.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e83f8d02be6967315521be875afa792a316e28d57b5a2d401897e2a7921b7f21"
+dependencies = [
+ "async-channel",
+ "async-task",
+ "futures-io",
+ "futures-lite",
+ "piper",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.20.3"
@@ -770,6 +868,15 @@ dependencies = [
  "itertools 0.10.5",
 ]
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "82b8f8f868b36967f9606790d1903570de9ceaf870a7bf9fbbd3016d636a2cb2"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-deque"
 version = "0.8.6"
@@ -1993,9 +2100,26 @@ dependencies = [
  "libloading",
 ]
 
+[[package]]
+name = "ksni"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da9eeb3f510b6148ae68f963af2c1fbb0de4d9e4e05f82813cfb319837c3ad2b"
+dependencies = [
+ "async-executor",
+ "async-io",
+ "async-lock",
+ "futures-channel",
+ "futures-lite",
+ "futures-util",
+ "pastey",
+ "serde",
+ "zbus",
+]
+
 [[package]]
 name = "latency-probe"
-version = "0.3.0"
+version = "0.7.1"
 
 [[package]]
 name = "lazy_static"
@@ -2127,7 +2251,7 @@ checksum = "0ceec5bc11778974d1bcb055b18002eba7f4b3518b6a0081b3af5f21666da9ad"
 
 [[package]]
 name = "loss-harness"
-version = "0.3.0"
+version = "0.7.1"
 dependencies = [
  "punktfunk-core",
 ]
@@ -2552,6 +2676,12 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
 
+[[package]]
+name = "pastey"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ee67f1008b1ba2321834326597b8e186293b049a023cdef258527550b9935b4"
+
 [[package]]
 name = "pem"
 version = "3.0.6"
@@ -2590,6 +2720,17 @@ version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a89322df9ebe1c1578d689c92318e070967d1042b512afbe49518723f4e6d5cd"
 
+[[package]]
+name = "piper"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c835479a4443ded371d6c535cbfd8d31ad92c5d23ae9770a61bc155e4992a3c1"
+dependencies = [
+ "atomic-waker",
+ "fastrand",
+ "futures-io",
+]
+
 [[package]]
 name = "pipewire"
 version = "0.9.2"
@@ -2645,6 +2786,20 @@ version = "0.3.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19f132c84eca552bf34cab8ec81f1c1dcc229b811638f9d283dceabe58c5569e"
 
+[[package]]
+name = "polling"
+version = "3.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d0e4f59085d47d8241c88ead0f274e8a0cb551f3625263c05eb8dd897c34218"
+dependencies = [
+ "cfg-if",
+ "concurrent-queue",
+ "hermit-abi",
+ "pin-project-lite",
+ "rustix",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "polyval"
 version = "0.6.2"
@@ -2720,7 +2875,7 @@ dependencies = [
 
 [[package]]
 name = "punktfunk-client-android"
-version = "0.3.0"
+version = "0.7.1"
 dependencies = [
  "android_logger",
  "jni",
@@ -2734,7 +2889,7 @@ dependencies = [
 
 [[package]]
 name = "punktfunk-client-linux"
-version = "0.3.0"
+version = "0.7.1"
 dependencies = [
  "anyhow",
  "async-channel",
@@ -2745,19 +2900,22 @@ dependencies = [
  "opus",
  "pipewire",
  "punktfunk-core",
+ "rustls",
  "sdl3",
  "serde",
  "serde_json",
  "tracing",
  "tracing-subscriber",
+ "ureq",
 ]
 
 [[package]]
 name = "punktfunk-client-windows"
-version = "0.3.0"
+version = "0.7.1"
 dependencies = [
  "anyhow",
  "async-channel",
+ "crossbeam-channel",
  "ffmpeg-next",
  "mdns-sd",
  "opus",
@@ -2768,13 +2926,15 @@ dependencies = [
  "tracing",
  "tracing-subscriber",
  "wasapi",
- "windows 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
  "windows-reactor",
+ "windows-reactor-setup",
+ "winresource",
 ]
 
 [[package]]
 name = "punktfunk-core"
-version = "0.3.0"
+version = "0.7.1"
 dependencies = [
  "aes-gcm",
  "bytes",
@@ -2804,7 +2964,7 @@ dependencies = [
 
 [[package]]
 name = "punktfunk-host"
-version = "0.3.0"
+version = "0.7.1"
 dependencies = [
  "aes",
  "aes-gcm",
@@ -2825,6 +2985,7 @@ dependencies = [
  "khronos-egl",
  "libc",
  "libloading",
+ "log",
  "mdns-sd",
  "nvidia-video-codec-sdk",
  "openh264",
@@ -2844,10 +3005,12 @@ dependencies = [
  "serde",
  "serde_json",
  "sha2",
+ "tempfile",
  "tokio",
  "tokio-rustls",
  "tower",
  "tracing",
+ "tracing-log",
  "tracing-subscriber",
  "ureq",
  "usbip-sim",
@@ -2864,13 +3027,14 @@ dependencies = [
  "windows 0.62.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "windows-service",
  "winreg",
+ "winresource",
  "x509-parser",
  "xkbcommon",
 ]
 
 [[package]]
 name = "punktfunk-probe"
-version = "0.3.0"
+version = "0.7.1"
 dependencies = [
  "anyhow",
  "mdns-sd",
@@ -2882,6 +3046,23 @@ dependencies = [
  "tracing-subscriber",
 ]
 
+[[package]]
+name = "punktfunk-tray"
+version = "0.7.1"
+dependencies = [
+ "anyhow",
+ "ksni",
+ "libc",
+ "rustls",
+ "serde",
+ "serde_json",
+ "sha2",
+ "ureq",
+ "windows 0.62.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "windows-service",
+ "winresource",
+]
+
 [[package]]
 name = "quick-error"
 version = "1.2.3"
@@ -4608,12 +4789,12 @@ dependencies = [
 [[package]]
 name = "windows"
 version = "0.62.2"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
- "windows-collections 0.3.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-future 0.3.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-numerics 0.3.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-collections 0.3.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-future 0.3.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-numerics 0.3.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
  "windows-reference",
  "windows-time",
 ]
@@ -4630,9 +4811,9 @@ dependencies = [
 [[package]]
 name = "windows-collections"
 version = "0.3.2"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
- "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
 ]
 
 [[package]]
@@ -4651,13 +4832,13 @@ dependencies = [
 [[package]]
 name = "windows-core"
 version = "0.62.2"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
- "windows-implement 0.60.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-interface 0.59.3 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-result 0.4.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-strings 0.5.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-implement 0.60.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-interface 0.59.3 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-result 0.4.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-strings 0.5.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
 ]
 
 [[package]]
@@ -4674,11 +4855,11 @@ dependencies = [
 [[package]]
 name = "windows-future"
 version = "0.3.2"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
- "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-threading 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-threading 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
 ]
 
 [[package]]
@@ -4695,7 +4876,7 @@ dependencies = [
 [[package]]
 name = "windows-implement"
 version = "0.60.2"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4716,7 +4897,7 @@ dependencies = [
 [[package]]
 name = "windows-interface"
 version = "0.59.3"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4732,7 +4913,7 @@ checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
 [[package]]
 name = "windows-link"
 version = "0.2.1"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 
 [[package]]
 name = "windows-numerics"
@@ -4747,33 +4928,38 @@ dependencies = [
 [[package]]
 name = "windows-numerics"
 version = "0.3.1"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
- "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
 ]
 
 [[package]]
 name = "windows-reactor"
 version = "0.0.0"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
  "rustc-hash",
- "windows-collections 0.3.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-future 0.3.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
- "windows-numerics 0.3.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-collections 0.3.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-future 0.3.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-numerics 0.3.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
  "windows-reference",
- "windows-threading 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-threading 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
  "windows-time",
 ]
 
+[[package]]
+name = "windows-reactor-setup"
+version = "0.0.0"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
+
 [[package]]
 name = "windows-reference"
 version = "0.1.0"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
- "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
  "windows-time",
 ]
 
@@ -4789,9 +4975,9 @@ dependencies = [
 [[package]]
 name = "windows-result"
 version = "0.4.1"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
- "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
 ]
 
 [[package]]
@@ -4817,9 +5003,9 @@ dependencies = [
 [[package]]
 name = "windows-strings"
 version = "0.5.1"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
- "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
 ]
 
 [[package]]
@@ -4927,17 +5113,18 @@ dependencies = [
 [[package]]
 name = "windows-threading"
 version = "0.2.1"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
- "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
 ]
 
 [[package]]
 name = "windows-time"
 version = "0.1.0"
-source = "git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1#b4129fcc1ae81eec8bf1217539883db821bca3a1"
+source = "git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f#a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f"
 dependencies = [
- "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=b4129fcc1ae81eec8bf1217539883db821bca3a1)",
+ "windows-core 0.62.2 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
+ "windows-link 0.2.1 (git+https://github.com/microsoft/windows-rs?rev=a4f7b2cb7c63c6bb7fc77a2affe57145be1d8c4f)",
 ]
 
 [[package]]
@@ -5103,6 +5290,16 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "winresource"
+version = "0.1.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0986a8b1d586b7d3e4fe3d9ea39fb451ae22869dcea4aa109d287a374d866087"
+dependencies = [
+ "toml 1.1.2+spec-1.1.0",
+ "version_check",
+]
+
 [[package]]
 name = "wit-bindgen"
 version = "0.57.1"
@@ -5188,8 +5385,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "eee682d202a77e4a9f3b2c2bdf48a7b28af5c08c34ddf66f98c93e5e39464285"
 dependencies = [
  "async-broadcast",
+ "async-executor",
+ "async-io",
+ "async-lock",
+ "async-process",
  "async-recursion",
+ "async-task",
  "async-trait",
+ "blocking",
  "enumflags2",
  "event-listener",
  "futures-core",

Cargo.toml

@@ -4,6 +4,7 @@ members = [
     "crates/punktfunk-core",
     "crates/punktfunk-host",
     "crates/punktfunk-host/vendor/usbip-sim",
+    "crates/punktfunk-tray",
     "crates/pf-driver-proto",
     "clients/probe",
     "clients/linux",
@@ -16,7 +17,7 @@ members = [
 exclude = ["packaging/linux/steam-deck-gadget/usbip-poc"]
 
 [workspace.package]
-version = "0.3.0"
+version = "0.7.1"
 edition = "2021"
 rust-version = "1.82"
 license = "MIT OR Apache-2.0"

README.md

@@ -15,6 +15,9 @@ your local network.
 💬 **Community: [Discord](https://discord.gg/kaPNvzMuGU)** — chat, support, and **Android beta
 access** · **[r/Punktfunk](https://www.reddit.com/r/Punktfunk/)**.
 
+🔒 **Security:** found a vulnerability? Report it privately to **security@punktfunk.com** — see
+[SECURITY.md](SECURITY.md). Please don't open a public issue.
+
 punktfunk pairs a **virtual-display streaming host** with native clients on every platform. It speaks
 the existing **GameStream** protocol, so any [Moonlight](https://moonlight-stream.org/) client works
 day one — and adds its own faster **`punktfunk/1`** protocol that breaks the ~1 Gbps FEC wall with a
@@ -33,7 +36,9 @@ protocol, FEC, and crypto, linked into the host and every client over a stable C
   a screen — tight, push-based integration that's unusual for a Windows streaming host.
 - **Low latency, GPU end to end.** Frames go straight from the compositor to the NVENC encoder with
   zero CPU copies (dmabuf → CUDA/Vulkan → NVENC), over a transport tuned for responsiveness rather
-  than throughput. Stable 240 fps at 5120×1440; sub-millisecond capture-to-reassembly on a LAN.
+  than throughput. Stable 240 fps at 5120×1440; sub-millisecond capture-to-reassembly on-box,
+  ~1.3 ms cross-machine on a LAN. (AMD/Intel encode via VAAPI, and a GPU-less software H.264
+  encoder exists as a fallback.)
 - **Works with what you already have.** Any Moonlight/Artemis client connects over GameStream — and
   native apps for macOS, Linux, Windows, and Android use the lower-latency `punktfunk/1` protocol.
 - **Secure by default.** Hosts require a one-time SPAKE2 **PIN pairing**; after that, devices
@@ -47,19 +52,19 @@ protocol, FEC, and crypto, linked into the host and every client over a stable C
 | **Core** — `punktfunk-core` + C ABI (protocol · FEC · crypto · QUIC) | ✅ Complete & hardened |
 | **GameStream host** → stock Moonlight | ✅ Live end-to-end: pairing, RTSP, audio, per-client virtual output at native resolution, GPU zero-copy NVENC, gamepads |
 | **Native protocol** — `punktfunk/1` | ✅ Validated live: QUIC control + GF(2¹⁶) FEC/AES-GCM data plane, PIN pairing, mDNS discovery, mid-stream mode renegotiation |
-| **Windows host** (x64) | 🟡 Implemented & shipping as a signed installer: DXGI/WGC capture · its own all-Rust IddCx **virtual display** (secure-desktop capable) · GPU encode (NVENC on NVIDIA, AMF/QSV on AMD/Intel) · WASAPI audio · bundled virtual-gamepad drivers (no ViGEmBus) · HDR incl. Vulkan-game HDR. NVIDIA live-validated; AMD/Intel CI-green |
+| **Windows host** (Windows 11 22H2+, x64) | 🟡 Implemented & shipping as a signed installer: DXGI/WGC capture · its own all-Rust IddCx **virtual display** (secure-desktop capable) · GPU encode (NVENC on NVIDIA, AMF/QSV on AMD/Intel, software H.264 without a GPU) · WASAPI audio · bundled virtual-gamepad drivers (no ViGEmBus) · HDR incl. Vulkan-game HDR. NVIDIA live-validated; AMD/Intel CI-green |
 | **macOS / iOS / tvOS client** (`clients/apple`) | ✅ Streaming live: VideoToolbox decode, controllers incl. DualSense, discovery, pairing, speed test |
 | **Linux client** (`clients/linux`, GTK4) | ✅ Streaming live: FFmpeg + VAAPI zero-copy decode, PipeWire audio, SDL3 controllers; ships as Flatpak/apt/rpm/Arch |
-| **Android client** (`clients/android`, phone + TV) | ✅ Streaming live: AMediaCodec decode + HDR10, Oboe audio, controllers, discovery, pairing |
-| **Windows client** (`clients/windows`, WinUI 3) | 🟡 Stage 1 complete, ships as signed MSIX (x64 + ARM64); D3D11VA decode + HDR present pending on-glass validation |
-| **Web console + management API** (`web/`) | ✅ TanStack console over the OpenAPI mgmt API: host status, paired devices, on-demand PIN pairing |
+| **Android client** (`clients/android`, phone + TV) | ✅ Streaming live: AMediaCodec decode + HDR10, AAudio audio, controllers, discovery, pairing |
+| **Windows client** (`clients/windows`, WinUI 3) | ✅ Streaming live: D3D11VA hardware decode on all GPU vendors (NVIDIA + Intel validated on glass) with software fallback, WASAPI audio, SDL3 controllers, discovery, pairing; ships as signed MSIX (x64 + ARM64). HDR10 implemented, on-glass validation pending |
+| **Web console + management API** (`web/`) | ✅ TanStack console over the OpenAPI mgmt API: host status, paired devices, on-demand PIN pairing, GPU selection, performance capture graphs, live host logs |
 
 The **GameStream host works with a stock Moonlight client** — validated live on NVIDIA hardware
 (RTX 5070 Ti, RTX 4090): PIN pairing that persists across restarts, an app catalog, RTSP/ENet/audio,
 and **video at the client's exact resolution and refresh** via a per-session virtual output (KWin,
 gamescope, Mutter, and Sway/wlroots backends), encoded with GPU **zero-copy** (dmabuf → CUDA/Vulkan →
 NVENC) up to 5120×1440@240. The native **`punktfunk/1`** protocol adds a QUIC control plane and a
-GF(2¹⁶) Leopard-FEC + AES-GCM data plane (p50 ~0.8 ms capture→reassembled at 720p120), with
+GF(2¹⁶) Leopard-FEC + AES-GCM data plane (p50 ~0.8 ms capture→received at 720p120), with
 mid-stream mode renegotiation and a wall-clock skew handshake so latency stays valid across machines.
 Both run from **one process**: bare `punktfunk-host serve` is the **secure native-only default**
 (`punktfunk/1` + the management API/web console), and `serve --gamestream` additionally enables the
@@ -80,7 +85,7 @@ Windows host also ships as a signed installer (all-vendor: NVIDIA, AMD, Intel).
 | **Ubuntu / Debian** (apt) | `sudo apt install punktfunk-host` *(after adding the repo)* | [Ubuntu — GNOME](https://docs.punktfunk.unom.io/docs/ubuntu-gnome) · [KDE](https://docs.punktfunk.unom.io/docs/ubuntu-kde) |
 | **Fedora / Bazzite** (rpm-ostree) | `rpm-ostree install punktfunk punktfunk-web` *(or the bootc image)* | [Fedora — KDE](https://docs.punktfunk.unom.io/docs/fedora-kde) · [Bazzite](https://docs.punktfunk.unom.io/docs/bazzite) |
 | **Arch / Steam Deck** (PKGBUILD / sysext) | `makepkg -si` *(Arch)* · sysext `.raw` *(SteamOS)* | [packaging/arch](packaging/arch/README.md) |
-| **Windows** (x64) | signed `setup.exe` from the package registry | [Windows Host](https://docs.punktfunk.unom.io/docs/windows-host) |
+| **Windows** (11 22H2+, x64) | signed `setup.exe` from the package registry | [Windows Host](https://docs.punktfunk.unom.io/docs/windows-host) |
 
 `punktfunk-host` is the streaming host; `punktfunk-web` is the browser console (pairing + status).
 After install, run `punktfunk-host serve` inside your desktop session (the secure native default;
@@ -130,13 +135,12 @@ clients/
   apple/    macOS / iOS / tvOS app (Swift · VideoToolbox · Metal · GameController)
   linux/    Linux desktop app (Rust · GTK4/libadwaita · FFmpeg/VAAPI · PipeWire · SDL3)
   windows/  Windows desktop app (Rust · WinUI 3 · D3D11 · WASAPI · SDL3)
-  android/  Android phone + TV app (Kotlin · Rust JNI core · AMediaCodec · Oboe)
+  android/  Android phone + TV app (Kotlin · Rust JNI core · AMediaCodec · AAudio)
   probe/    headless reference / measurement client for punktfunk/1
   decky/    Steam Deck Decky plugin
-web/                         web console (TanStack) over the management API — status · devices · pairing
+web/                         web console (TanStack) over the management API — status · devices · pairing · GPUs · performance · logs
 packaging/                   apt · rpm / COPR · Arch · Flatpak · Bazzite bootc image
 docs-site/                   public documentation site (Fumadocs) — https://docs.punktfunk.unom.io
-design/                        design notes & deep-dive plans (index: design/README.md)
 include/punktfunk_core.h     cbindgen-generated C header (checked in)
 tools/                       latency-probe · loss-harness (measurement)
 ```

SECURITY.md

@@ -0,0 +1,69 @@
+# Security Policy
+
+punktfunk is a low-latency desktop/game streaming stack. A host is effectively remote control of a
+machine, so we take security reports seriously and appreciate responsible disclosure.
+
+## Reporting a vulnerability
+
+**Please report security issues privately by email to security@punktfunk.com.**
+
+Do **not** open a public issue, pull request, or chat/forum post for a suspected vulnerability — that
+exposes other users before a fix exists.
+
+### What to include
+
+The more of this you can give us, the faster we can act:
+
+- The component and version (e.g. `punktfunk-host 0.6.0`, Windows or Linux, which client).
+- The impact — what an attacker can do, and from what position (same LAN, a local service account,
+  admin, a paired client, …).
+- Steps to reproduce, a proof-of-concept, or a crash/log if you have one.
+- Any suggested fix or mitigation (optional).
+
+## What to expect
+
+We're a small team, so timelines are best-effort, but we commit to:
+
+- **Acknowledge** your report within **3 business days**.
+- Give an **initial assessment** (severity + whether we can reproduce) within about **7 days**.
+- Keep you updated, and tell you when a fix ships.
+- **Credit** you in the advisory / release notes when the fix is public — unless you'd rather stay
+  anonymous.
+
+We practice **coordinated disclosure**: please give us reasonable time to release a fix before
+publishing details. We aim to resolve valid issues within **90 days** and will agree a disclosure
+date with you.
+
+## Scope
+
+In scope — the code in this repository:
+
+- The host (`punktfunk-host`), its Windows drivers, and the protocol/crypto core (`punktfunk-core`).
+- The native clients (Apple, Linux, Windows, Android), the web management console, and the management
+  API.
+
+Known limits — documented behavior, not vulnerabilities (see
+https://docs.punktfunk.unom.io/docs/security):
+
+- **Admin/SYSTEM already on the host = out of scope.** An attacker who is already administrator or
+  SYSTEM on the host owns the machine regardless of punktfunk.
+- **The virtual display is a real monitor** — any process already in the interactive desktop session
+  can capture it via the normal OS screen-capture APIs, exactly as it could a physical monitor.
+- **GameStream/Moonlight compatibility** (`--gamestream`) uses legacy encryption and is documented as
+  opt-in, trusted-LAN-only.
+- **Public-internet exposure is unsupported** — issues that only arise from exposing the host to the
+  WAN are expected; keep the host on a trusted LAN or a VPN.
+
+If you're unsure whether something is in scope, report it anyway — we'd rather hear about it.
+
+## Safe harbor
+
+We consider good-faith security research that follows this policy to be authorized, and we won't
+pursue legal action against researchers who:
+
+- make a good-faith effort to avoid privacy violations, data loss, and service disruption,
+- only test systems they own or have explicit permission to test,
+- give us reasonable time to remediate before public disclosure,
+- don't exfiltrate more data than needed to demonstrate the issue.
+
+Thank you for helping keep punktfunk and its users safe.

api/openapi.json

@@ -10,7 +10,7 @@
       "name": "MIT OR Apache-2.0",
       "identifier": "MIT OR Apache-2.0"
     },
-    "version": "0.3.0"
+    "version": "0.6.0"
   },
   "paths": {
     "/api/v1/clients": {
@@ -138,6 +138,100 @@
         }
       }
     },
+    "/api/v1/gpus": {
+      "get": {
+        "tags": [
+          "gpu"
+        ],
+        "summary": "GPU inventory and selection",
+        "description": "Lists the host's hardware GPUs, the persisted auto/manual preference, the GPU the next session\nwill use (and why), and the GPU live sessions encode on right now.",
+        "operationId": "listGpus",
+        "responses": {
+          "200": {
+            "description": "GPU inventory + selection state",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/GpuState"
+                }
+              }
+            }
+          },
+          "401": {
+            "description": "Missing or invalid bearer token",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ApiError"
+                }
+              }
+            }
+          }
+        }
+      }
+    },
+    "/api/v1/gpus/preference": {
+      "put": {
+        "tags": [
+          "gpu"
+        ],
+        "summary": "Set the GPU preference",
+        "description": "`auto` restores automatic selection (`PUNKTFUNK_RENDER_ADAPTER` pin, else max dedicated VRAM);\n`manual` pins capture + encode to the given GPU. Persisted across restarts; applies to the\n**next** session (a running session keeps its GPU). If the preferred GPU is absent at session\nstart the host falls back to automatic selection rather than failing.",
+        "operationId": "setGpuPreference",
+        "requestBody": {
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/SetGpuPreference"
+              }
+            }
+          },
+          "required": true
+        },
+        "responses": {
+          "200": {
+            "description": "Preference stored; the new selection state",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/GpuState"
+                }
+              }
+            }
+          },
+          "400": {
+            "description": "Unknown mode, or `gpu_id` missing / not a listed GPU",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ApiError"
+                }
+              }
+            }
+          },
+          "401": {
+            "description": "Missing or invalid bearer token",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ApiError"
+                }
+              }
+            }
+          },
+          "500": {
+            "description": "Preference could not be persisted",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ApiError"
+                }
+              }
+            }
+          }
+        }
+      }
+    },
     "/api/v1/health": {
       "get": {
         "tags": [
@@ -229,6 +323,64 @@
         }
       }
     },
+    "/api/v1/library/art/{id}/{kind}": {
+      "get": {
+        "tags": [
+          "library"
+        ],
+        "summary": "Fetch one cover-art image for a library entry",
+        "description": "Resolves `kind` (`portrait` | `hero` | `logo` | `header`) for the given library id and streams\nthe image bytes. For a Steam title, the host's own local Steam cache is tried first (exact —\nit's what the user's Steam client already shows for it), the public Steam CDN's flat URL\nconvention as a fallback (newer titles' CDN assets can live at a per-asset-hash path the host\ncan't predict, in which case this 404s and the client falls through to its next art candidate).\nOnly Steam ids are backed today; any other store 404s.",
+        "operationId": "getLibraryArt",
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "description": "The store-qualified library id, e.g. `steam:570`",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "kind",
+            "in": "path",
+            "description": "`portrait` | `hero` | `logo` | `header`",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Image bytes",
+            "content": {
+              "image/jpeg": {}
+            }
+          },
+          "401": {
+            "description": "Missing or invalid credentials",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ApiError"
+                }
+              }
+            }
+          },
+          "404": {
+            "description": "No art of that kind for that id",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ApiError"
+                }
+              }
+            }
+          }
+        }
+      }
+    },
     "/api/v1/library/custom": {
       "post": {
         "tags": [
@@ -426,6 +578,97 @@
         }
       }
     },
+    "/api/v1/local/summary": {
+      "get": {
+        "tags": [
+          "host"
+        ],
+        "summary": "Local status summary for the tray icon",
+        "description": "Non-sensitive status (counts and booleans only — no PIN values, no fingerprints, no device\nnames). Unauthenticated, but served to loopback peers only.",
+        "operationId": "getLocalSummary",
+        "responses": {
+          "200": {
+            "description": "Non-sensitive local host status (loopback peers only)",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/LocalSummary"
+                }
+              }
+            }
+          },
+          "401": {
+            "description": "Non-loopback peer",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ApiError"
+                }
+              }
+            }
+          }
+        },
+        "security": [
+          {}
+        ]
+      }
+    },
+    "/api/v1/logs": {
+      "get": {
+        "tags": [
+          "logs"
+        ],
+        "summary": "Host logs",
+        "description": "The host's recent log entries — an in-memory ring of the newest few thousand, captured at\nDEBUG and above regardless of `RUST_LOG`. Follow live by polling with `after` set to the last\nresponse's `next` cursor; a `dropped: true` means entries were evicted between polls (the ring\nwrapped). Bearer-only: logs can reference client identities and host paths, so this is part of\nthe loopback-only admin surface, never the LAN-readable mTLS one.",
+        "operationId": "logsGet",
+        "parameters": [
+          {
+            "name": "after",
+            "in": "query",
+            "description": "Return entries with seq greater than this (omitted/0 = oldest retained)",
+            "required": false,
+            "schema": {
+              "type": "integer",
+              "format": "int64",
+              "minimum": 0
+            }
+          },
+          {
+            "name": "limit",
+            "in": "query",
+            "description": "Max entries per response (default and cap 1000)",
+            "required": false,
+            "schema": {
+              "type": "integer",
+              "format": "int32",
+              "minimum": 0
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Entries after the cursor, oldest first",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/LogPage"
+                }
+              }
+            }
+          },
+          "401": {
+            "description": "Missing or invalid bearer token",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ApiError"
+                }
+              }
+            }
+          }
+        }
+      }
+    },
     "/api/v1/native/clients": {
       "get": {
         "tags": [
@@ -1315,6 +1558,40 @@
   },
   "components": {
     "schemas": {
+      "ApiActiveGpu": {
+        "type": "object",
+        "description": "The GPU live sessions are encoding on right now.",
+        "required": [
+          "id",
+          "name",
+          "vendor",
+          "backend",
+          "sessions"
+        ],
+        "properties": {
+          "backend": {
+            "type": "string",
+            "description": "The encode backend in use (`nvenc` | `amf` | `qsv` | `vaapi` | `software`)."
+          },
+          "id": {
+            "type": "string",
+            "description": "Stable id matching an entry of `gpus` (empty for the CPU/software encoder)."
+          },
+          "name": {
+            "type": "string"
+          },
+          "sessions": {
+            "type": "integer",
+            "format": "int32",
+            "description": "Number of live encode sessions on it.",
+            "minimum": 0
+          },
+          "vendor": {
+            "type": "string",
+            "description": "`nvidia` | `amd` | `intel` | `other`."
+          }
+        }
+      },
       "ApiCodec": {
         "type": "string",
         "description": "Video codec identifier.",
@@ -1336,6 +1613,64 @@
           }
         }
       },
+      "ApiGpu": {
+        "type": "object",
+        "description": "One hardware GPU on the host (software/WARP adapters are never listed).",
+        "required": [
+          "id",
+          "name",
+          "vendor",
+          "vram_mb"
+        ],
+        "properties": {
+          "id": {
+            "type": "string",
+            "description": "Stable identifier (`vendorid-deviceid-occurrence`, hex PCI ids) — pass to `setGpuPreference`.\nStable across reboots and driver updates, unlike an adapter index or LUID.",
+            "example": "10de-2c05-0"
+          },
+          "name": {
+            "type": "string",
+            "description": "Adapter/marketing name.",
+            "example": "NVIDIA GeForce RTX 5070 Ti"
+          },
+          "vendor": {
+            "type": "string",
+            "description": "`nvidia` | `amd` | `intel` | `other`."
+          },
+          "vram_mb": {
+            "type": "integer",
+            "format": "int64",
+            "description": "Dedicated VRAM in MiB (0 where the platform doesn't expose it).",
+            "minimum": 0
+          }
+        }
+      },
+      "ApiSelectedGpu": {
+        "type": "object",
+        "description": "The GPU the **next** session's pipeline will be created on, and why. (A preference change\napplies to the next session; a running session keeps the GPU it opened on.)",
+        "required": [
+          "id",
+          "name",
+          "vendor",
+          "source"
+        ],
+        "properties": {
+          "id": {
+            "type": "string"
+          },
+          "name": {
+            "type": "string"
+          },
+          "source": {
+            "type": "string",
+            "description": "Why this GPU was selected: `preference` (the manual choice), `env`\n(`PUNKTFUNK_RENDER_ADAPTER`), `auto` (max dedicated VRAM / platform default), or\n`preference_missing` (a manual choice is set but that GPU is absent — auto-selected\ninstead so the host keeps streaming)."
+          },
+          "vendor": {
+            "type": "string",
+            "description": "`nvidia` | `amd` | `intel` | `other`."
+          }
+        }
+      },
       "ApprovePending": {
         "type": "object",
         "description": "Approve-pending-device request body. Send `{}` to keep the device's own name.",
@@ -1613,6 +1948,75 @@
           }
         }
       },
+      "GpuState": {
+        "type": "object",
+        "description": "Full GPU-selection state for the console: inventory, the persisted preference, what the next\nsession will use, and what is in use right now.",
+        "required": [
+          "gpus",
+          "mode",
+          "preferred_available"
+        ],
+        "properties": {
+          "active": {
+            "oneOf": [
+              {
+                "type": "null"
+              },
+              {
+                "$ref": "#/components/schemas/ApiActiveGpu",
+                "description": "The GPU live sessions use right now (absent while nothing is streaming)."
+              }
+            ]
+          },
+          "env_override": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "description": "`PUNKTFUNK_RENDER_ADAPTER` (the host.env pin), when set — it applies while `mode` is\n`auto`; a manual preference overrides it."
+          },
+          "gpus": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/ApiGpu"
+            },
+            "description": "The host's hardware GPUs."
+          },
+          "mode": {
+            "type": "string",
+            "description": "`auto` or `manual`."
+          },
+          "preferred_available": {
+            "type": "boolean",
+            "description": "Whether the preferred GPU is currently present."
+          },
+          "preferred_id": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "description": "The manually preferred GPU's stable id, when one is stored (kept while `mode` is `auto` so\na console can offer returning to it). May reference a GPU that is currently absent."
+          },
+          "preferred_name": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "description": "The stored name of the preferred GPU (a usable label even when it is absent)."
+          },
+          "selected": {
+            "oneOf": [
+              {
+                "type": "null"
+              },
+              {
+                "$ref": "#/components/schemas/ApiSelectedGpu",
+                "description": "The GPU the next session will use."
+              }
+            ]
+          }
+        }
+      },
       "Health": {
         "type": "object",
         "description": "Liveness + version probe.",
@@ -1714,6 +2118,130 @@
           }
         }
       },
+      "LocalSummary": {
+        "type": "object",
+        "description": "Non-sensitive host status for the local tray icon: counts and booleans only — no PIN values,\nno fingerprints, no device names. Served unauthenticated to LOOPBACK peers only (see\n`require_auth`): the bearer-token file is SYSTEM/Administrators-DACL'd on Windows, so the\nper-user tray process cannot authenticate — this narrow read-only route is its status source.",
+        "required": [
+          "version",
+          "video_streaming",
+          "audio_streaming",
+          "paired_clients",
+          "native_paired_clients",
+          "pin_pending",
+          "pending_approvals"
+        ],
+        "properties": {
+          "audio_streaming": {
+            "type": "boolean",
+            "description": "True while the audio stream thread is running."
+          },
+          "native_paired_clients": {
+            "type": "integer",
+            "format": "int32",
+            "description": "Number of paired native (punktfunk/1) devices.",
+            "minimum": 0
+          },
+          "paired_clients": {
+            "type": "integer",
+            "format": "int32",
+            "description": "Number of pinned (paired) GameStream client certificates.",
+            "minimum": 0
+          },
+          "pending_approvals": {
+            "type": "integer",
+            "format": "int32",
+            "description": "Native pairing knocks awaiting the operator's approval (count only).",
+            "minimum": 0
+          },
+          "pin_pending": {
+            "type": "boolean",
+            "description": "True while a GameStream pairing handshake is parked waiting for the user's PIN."
+          },
+          "session": {
+            "oneOf": [
+              {
+                "type": "null"
+              },
+              {
+                "$ref": "#/components/schemas/SessionInfo",
+                "description": "The active launch session (set by Moonlight's `/launch`, cleared on cancel/stop)."
+              }
+            ]
+          },
+          "version": {
+            "type": "string",
+            "description": "Host version (mirrors `/health`)."
+          },
+          "video_streaming": {
+            "type": "boolean",
+            "description": "True while the video stream thread is running."
+          }
+        }
+      },
+      "LogEntry": {
+        "type": "object",
+        "description": "One captured log event.",
+        "required": [
+          "seq",
+          "ts_ms",
+          "level",
+          "target",
+          "msg"
+        ],
+        "properties": {
+          "level": {
+            "type": "string",
+            "description": "`ERROR` | `WARN` | `INFO` | `DEBUG` | `TRACE`."
+          },
+          "msg": {
+            "type": "string",
+            "description": "The formatted message, structured fields appended as `key=value`."
+          },
+          "seq": {
+            "type": "integer",
+            "format": "int64",
+            "description": "Monotonic sequence number (1-based) — pass the last one back as the `after` cursor.",
+            "minimum": 0
+          },
+          "target": {
+            "type": "string",
+            "description": "The emitting module path (tracing target)."
+          },
+          "ts_ms": {
+            "type": "integer",
+            "format": "int64",
+            "description": "Unix timestamp in milliseconds.",
+            "minimum": 0
+          }
+        }
+      },
+      "LogPage": {
+        "type": "object",
+        "description": "One poll's worth of log entries.",
+        "required": [
+          "entries",
+          "next",
+          "dropped"
+        ],
+        "properties": {
+          "dropped": {
+            "type": "boolean",
+            "description": "True when entries between `after` and the first returned one were already evicted."
+          },
+          "entries": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/LogEntry"
+            }
+          },
+          "next": {
+            "type": "integer",
+            "format": "int64",
+            "description": "Cursor for the next poll (the last returned seq, or the request's `after` when empty).",
+            "minimum": 0
+          }
+        }
+      },
       "NativeClient": {
         "type": "object",
         "description": "A paired native (punktfunk/1) client.",
@@ -1989,6 +2517,28 @@
           }
         }
       },
+      "SetGpuPreference": {
+        "type": "object",
+        "description": "Request body for `setGpuPreference`.",
+        "required": [
+          "mode"
+        ],
+        "properties": {
+          "gpu_id": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "description": "Required when `mode` is `manual`: the stable `id` of a currently listed GPU\n(see `listGpus`).",
+            "example": "10de-2c05-0"
+          },
+          "mode": {
+            "type": "string",
+            "description": "`auto` (env pin, else max dedicated VRAM — the default) or `manual`.",
+            "example": "manual"
+          }
+        }
+      },
       "StageTiming": {
         "type": "object",
         "description": "One pipeline stage's latency in an aggregation window (microseconds).",
@@ -2209,6 +2759,10 @@
       "name": "host",
       "description": "Host identity, capabilities, and liveness"
     },
+    {
+      "name": "gpu",
+      "description": "GPU inventory and selection: list the host's GPUs, choose automatic or a preferred GPU, see the one in use"
+    },
     {
       "name": "clients",
       "description": "Paired Moonlight client management"
@@ -2232,6 +2786,10 @@
     {
       "name": "stats",
       "description": "Streaming performance-stats capture: arm/stop a recording, read the live + saved time-series for graphing"
+    },
+    {
+      "name": "logs",
+      "description": "Host log stream: the newest in-memory log entries, cursor-paged for live following"
     }
   ]
 }

ci/fedora-rpm.Dockerfile

@@ -16,8 +16,9 @@ RUN dnf -y install \
       "https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm" \
       "https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm" \
   && dnf -y install \
-      # rpmbuild + source-tarball tooling; nodejs runs the Gitea Actions JS (checkout/cache)
-      # AND the punktfunk-web .output at runtime; unzip is for the bun installer below.
+      # rpmbuild + source-tarball tooling; nodejs runs the Gitea Actions JS (checkout/cache) only
+      # — the punktfunk-web console builds AND runs on bun (installed below); unzip is for the bun
+      # installer.
       rpm-build rpmdevtools systemd-rpm-macros git tar gzip nodejs unzip \
       # build toolchain + bindgen
       gcc gcc-c++ clang clang-devel cmake nasm pkgconf-pkg-config curl ca-certificates \
@@ -28,9 +29,10 @@ RUN dnf -y install \
       gtk4-devel libadwaita-devel SDL3-devel \
   && dnf clean all
 
-# bun — the build tool for the punktfunk-web console (`bun run build` -> the node-server .output
-# the punktfunk-web RPM ships and runs with plain node). Not in Fedora repos; install the official
-# standalone binary to a system PATH dir so the rpmbuild `%build` (run as any uid) finds it.
+# bun — both the BUILD tool and the RUNTIME for the punktfunk-web console (`bun run build` -> the
+# Nitro `bun`-preset .output, served by `Bun.serve` with TLS — HTTP/1.1 over TLS). The
+# RPM vendors THIS bun binary. Not in Fedora repos; install the official standalone binary to a
+# system PATH dir so the rpmbuild `%build`/`%install` (run as any uid) find it.
 RUN curl -fsSL https://bun.sh/install | bash \
     && install -m0755 /root/.bun/bin/bun /usr/local/bin/bun \
     && bun --version

clients/android/README.md

@@ -1,83 +1,79 @@
-# punktfunk Android client
+# punktfunk — Android client (phone & TV)
 
-Native Android client for **punktfunk/1**, targeting **phone + TV** (Compose, D-pad + touch).
+The native **Android** app for streaming a punktfunk host to your phone, tablet, or Android TV. A
+Compose app that finds hosts on your network, pairs with a PIN, and streams at the display's own
+resolution — with hardware HEVC decode, HDR10, and controller support, built for both touch and the
+couch (D-pad / gamepad focus navigation).
 
-## Architecture — Rust-heavy (like the Linux client, not thin-native like Apple)
+## Features
 
-Kotlin cannot `import` the cbindgen C header the way Swift can, so a native bridge is unavoidable.
-We write it in **Rust** and link `punktfunk-core` directly — so the Android client reuses the Linux
+- **Hardware decode** — NDK `AMediaCodec` HEVC → `SurfaceView`, including **HDR10** (Main10 /
+  BT.2020 PQ), with low-latency tuning and a live stats HUD.
+- **Audio both ways** — Opus + AAudio playback with a jitter ring, plus mic uplink to the host.
+- **Controller support** — buttons + axes with rumble and HID feedback (lightbar / adaptive
+  triggers); D-pad / gamepad focus navigation for TV and phone.
+- **Find hosts automatically** — native mDNS discovery; first connect does a one-time **SPAKE2 PIN
+  pairing** (or TOFU on trusted LANs), then reconnects on a Keystore-wrapped, pinned identity.
+- **Compose UI** — Connect / Settings / Stream screens with Material You theming.
+
+Built for `arm64-v8a` + `x86_64`.
+
+## Get it
+
+Published to **Google Play (Internal Testing)** — join the beta via the
+[Discord](https://discord.gg/kaPNvzMuGU). Per-device setup and pairing:
+**[docs.punktfunk.unom.io/docs/install-client](https://docs.punktfunk.unom.io/docs/install-client)**.
+
+## How it's built — Rust-heavy
+
+Kotlin can't `import` the cbindgen C header the way Swift can, so a native bridge is unavoidable. We
+write it in **Rust** and link `punktfunk-core` directly — so the Android client reuses the Linux
 client's orchestration (audio jitter ring, VK keymap inverse, latency/skew math, capture state
 machine, trust logic) instead of re-porting it into Kotlin.
 
 | Side | Owns |
 |------|------|
-| **Rust** (`clients/android/native` → `libpunktfunk_android.so`) | the JNI seam, `NativeClient` (QUIC control + UDP data plane), AnnexB→`AMediaCodec` decode, Opus+Oboe audio, VK keymap, latency math, trust/pairing, **mDNS discovery** (`mdns-sd`, the same browse the Linux/Windows clients use) |
-| **Kotlin** (`clients/android`) | Compose UI (host grid / settings / stream), `SurfaceView` lifecycle, input capture, the Wi-Fi `MulticastLock` + permission UX, Keystore identity, permissions |
+| **Rust** (`native/` → `libpunktfunk_android.so`) | the JNI seam, `NativeClient` (QUIC control + UDP data plane), AnnexB → `AMediaCodec` decode (incl. HDR10), Opus + AAudio audio + mic, controller feedback, latency math, trust/pairing, `mdns-sd` discovery |
+| **Kotlin** (`app/`, `kit/`) | Compose UI, `SurfaceView` lifecycle, input capture, the Wi-Fi `MulticastLock` + permission UX, Keystore identity |
 
 The single seam is `io.unom.punktfunk.kit.NativeBridge` ⇄ `Java_io_unom_punktfunk_kit_NativeBridge_*`.
 
-## Layout
-
 ```
-clients/android/native/          Rust cdylib (workspace member) — links punktfunk-core directly
-  src/lib.rs                       JNI seam (connect/pair, input, plane getters, abi/core version)
-  src/session.rs                   session lifecycle + plane pumps
+native/           Rust cdylib (workspace member) — links punktfunk-core directly
+  src/lib.rs        crate doc · JNI_OnLoad · version probes
+  src/session/      session lifecycle: connect/pair + trust, plane start/stop, input shims
   src/decode.rs     AnnexB → AMediaCodec HEVC hardware decode → SurfaceView (incl. HDR10)
-  src/audio.rs · src/mic.rs        Opus + Oboe playback / mic uplink (jitter ring)
-  src/feedback.rs                  rumble + HID output (lightbar / adaptive triggers)
-  src/stats.rs                     live video stats
-
-clients/android/                   Gradle project (this dir)
-  settings.gradle.kts · build.gradle.kts · gradle.properties · gradlew
-  app/                             :app — Compose UI: Connect / Settings / Stream screens (phone + TV)
-  kit/                             :kit — NativeBridge · discovery (native mdns-sd, polled) · Gamepad · Keymap ·
-                                         security (Keystore identity + known-host store) · cargo-ndk build
+  src/audio.rs · src/mic.rs   Opus + AAudio playback / mic uplink
+  src/feedback.rs · src/stats.rs   rumble + HID feedback; live video stats
+  src/discovery.rs  native mdns-sd browse of the host's _punktfunk._udp advert
+app/              :app — Compose UI: Connect / Settings / Stream (phone + TV)
+kit/              :kit — NativeBridge · native mDNS discovery · Gamepad · Keymap · Keystore identity
 ```
 
-## Prerequisites
-
-- Android SDK + **NDK r30** (`30.0.14904198`), `platforms;android-37.0`, `build-tools;37.0.0`,
-  **`cmake;3.22.1`** (`sdkmanager "cmake;3.22.1"` — the `cmake` crate builds libopus with it)
-- **JDK 21** for Gradle/AGP (AGP 9.2 runs on JDK 17–21, *not* a newer default JDK like 25)
-- Rust + `rustup target add aarch64-linux-android x86_64-linux-android` + `cargo install cargo-ndk`
-
-Toolchain pinned: AGP 9.2.0 · Gradle 9.4.1 · Kotlin 2.3.21 · Compose BOM 2026.05.01 ·
-compileSdk 37 · targetSdk 36 · minSdk 31 · ABIs arm64-v8a + x86_64.
-
 ## Build & run
 
-**Android Studio:** open `clients/android` — it uses its bundled JBR 21 automatically. The
-`cargoNdk*` task builds the `.so` as part of the normal build.
+**Prerequisites:** Android SDK + **NDK r30** (`30.0.14904198`), `platforms;android-37.0`,
+`build-tools;37.0.0`, **`cmake;3.22.1`** (builds libopus); **JDK 21** (AGP 9.2 runs on JDK 17–21, not
+a newer default); Rust with `rustup target add aarch64-linux-android x86_64-linux-android` and
+`cargo install cargo-ndk`. Toolchain is pinned (AGP 9.2 · Gradle 9.4.1 · Kotlin 2.3.21 · Compose BOM
+2026.05.01 · compileSdk 37 · minSdk 31).
 
-**CLI** (point Gradle at a JDK 21 if your machine default is newer, e.g. JDK 25):
+**Android Studio:** open `clients/android` — it uses its bundled JBR 21, and the `cargoNdk*` task
+builds the `.so` as part of the normal build.
+
+**CLI** (point Gradle at JDK 21 if your machine default is newer):
 
 ```sh
-# Adoptium/Temurin 21 (installed by the Android Studio setup, or `brew install temurin@21`):
-export JAVA_HOME="$(/usr/libexec/java_home -v 21)"
+export JAVA_HOME="$(/usr/libexec/java_home -v 21)"   # or your Temurin 21 path
 cd clients/android
 ./gradlew :app:assembleDebug     # cargo-ndk cross-compiles libpunktfunk_android.so first
 ./gradlew :app:installDebug      # onto a running emulator/device
-
-# Emulators (created during env setup):  emulator -avd pf_phone   |   emulator -avd pf_tv
+# emulators from env setup:  emulator -avd pf_phone   |   emulator -avd pf_tv
 ```
 
-The debug APK lands in `app/build/outputs/apk/debug/`. Launch it, pick a host from the list, pair,
-and stream.
+The debug APK lands in `app/build/outputs/apk/debug/`. Launch it, pick a host, pair, and stream.
 
-## Status
+## Related
 
-A working native client (phone + Android TV), at parity with the Linux and Apple apps for the core
-streaming experience:
-
-- **Video** — `AMediaCodec` hardware HEVC decode → `SurfaceView`, including **HDR10** (Main10 /
-  BT.2020 PQ), with low-latency decode tuning and a live stats HUD.
-- **Audio** — Opus + Oboe playback with a jitter ring, plus mic uplink to the host.
-- **Input** — game controllers (buttons + axes) with rumble and HID feedback; D-pad /
-  game-controller focus navigation for the couch (TV + phone).
-- **Discovery & trust** — native `mdns-sd` mDNS host list (polled over JNI; the same browse the
-  Linux/Windows clients use, not `NsdManager`), SPAKE2 PIN pairing and TOFU, with a
-  Keystore-wrapped client identity and a known-host store.
-- **UI** — Compose host list / settings / stream screens, Material You theming.
-- **Shipping** — built for `arm64-v8a` + `x86_64`; published to Google Play (Internal Testing).
-
-`crates/punktfunk-core` uses the `ring` `rcgen` backend so the client `.so` is aws-lc-free.
+- **[Documentation](https://docs.punktfunk.unom.io)** — quick start, pairing, troubleshooting
+- **[Project README](../../README.md)** — the host, the other clients, and how it all fits together

clients/android/app/src/main/AndroidManifest.xml

@@ -27,8 +27,15 @@
     <uses-feature android:name="android.software.leanback" android:required="false" />
     <uses-feature android:name="android.hardware.gamepad" android:required="false" />
 
+    <!-- appCategory="game": a game-streaming client IS a game as far as the SoC is concerned.
+         On Snapdragon devices (and other OEMs with a Game Mode / Game Dashboard) this makes the app
+         eligible for the vendor's game performance profile — the aggressive CPU/GPU governor and
+         scheduler treatment games get — which, together with the ADPF hints in the native decode
+         path, is what keeps clocks up for low, consistent decode latency. Also groups it correctly
+         under Games in battery/data usage. Advisory: devices without Game Mode ignore it. -->
     <application
         android:allowBackup="false"
+        android:appCategory="game"
         android:icon="@mipmap/ic_launcher"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:label="@string/app_name"

clients/android/app/src/main/kotlin/io/unom/punktfunk/ConnectDialogs.kt

@@ -0,0 +1,355 @@
+package io.unom.punktfunk
+
+import android.os.Build
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.ModalBottomSheet
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.rememberModalBottomSheetState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+import io.unom.punktfunk.kit.NativeBridge
+import io.unom.punktfunk.kit.security.ClientIdentity
+import io.unom.punktfunk.kit.security.KnownHost
+import io.unom.punktfunk.models.PendingTrust
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+/**
+ * The "Add host" bottom sheet: optional name + address + port, then connect at [modeLabel]. Field
+ * state stays hoisted in ConnectScreen so a dismissed sheet keeps its half-typed values.
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+internal fun AddHostSheet(
+    hostName: String,
+    onHostNameChange: (String) -> Unit,
+    host: String,
+    onHostChange: (String) -> Unit,
+    port: String,
+    onPortChange: (String) -> Unit,
+    connecting: Boolean,
+    modeLabel: String,
+    onDismiss: () -> Unit,
+    onConnect: (host: String, port: Int, name: String) -> Unit,
+) {
+    val scope = rememberCoroutineScope()
+    val sheetState = rememberModalBottomSheetState()
+    ModalBottomSheet(
+        onDismissRequest = onDismiss,
+        sheetState = sheetState,
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 24.dp)
+                .padding(bottom = 32.dp),
+        ) {
+            Text("Add a host", style = MaterialTheme.typography.titleLarge)
+            Spacer(Modifier.height(4.dp))
+            Text(
+                "Enter its address. You'll pair with the host's PIN on first connect.",
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+            Spacer(Modifier.height(20.dp))
+            OutlinedTextField(
+                value = hostName,
+                onValueChange = onHostNameChange,
+                label = { Text("Name (optional)") },
+                placeholder = { Text("e.g. Living Room") },
+                singleLine = true,
+                modifier = Modifier.fillMaxWidth(),
+            )
+            Spacer(Modifier.height(16.dp))
+            OutlinedTextField(
+                value = host,
+                onValueChange = onHostChange,
+                label = { Text("Host") },
+                singleLine = true,
+                modifier = Modifier.fillMaxWidth(),
+            )
+            Spacer(Modifier.height(16.dp))
+            OutlinedTextField(
+                value = port,
+                onValueChange = { v -> onPortChange(v.filter { it.isDigit() }.take(5)) },
+                label = { Text("Port") },
+                singleLine = true,
+                keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
+                modifier = Modifier.fillMaxWidth(),
+            )
+            Spacer(Modifier.height(20.dp))
+            Button(
+                enabled = !connecting && host.isNotBlank() && port.isNotBlank(),
+                onClick = {
+                    val h = host.trim()
+                    val p = port.toIntOrNull() ?: 9777
+                    val n = hostName
+                    scope.launch { sheetState.hide() }.invokeOnCompletion {
+                        onDismiss()
+                        onConnect(h, p, n)
+                    }
+                },
+                modifier = Modifier.fillMaxWidth(),
+            ) { Text("Connect  ($modeLabel)") }
+        }
+    }
+}
+
+/** First connection to a host that advertised pair=optional: offer TOFU, but pitch PIN pairing. */
+@Composable
+internal fun TrustNewHostDialog(
+    pt: PendingTrust,
+    onTrust: () -> Unit,
+    onPairInstead: () -> Unit,
+    onDismiss: () -> Unit,
+) {
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text("Trust this host?") },
+        text = {
+            Column {
+                Text("First connection to ${pt.host}:${pt.port}.")
+                pt.advertisedFp?.let { Text("Fingerprint ${it.take(16)}…") }
+                Text(
+                    "This host allows trust-on-first-use, but that can't tell an impostor " +
+                        "from the real host. Pairing with a PIN is stronger — it proves both sides.",
+                )
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = onTrust) { Text("Trust (TOFU)") }
+        },
+        dismissButton = {
+            Row {
+                TextButton(onClick = onPairInstead) { Text("Pair with PIN…") }
+                TextButton(onClick = onDismiss) { Text("Cancel") }
+            }
+        },
+    )
+}
+
+/** The pinned fingerprint no longer matches — force re-pairing (never a silent re-trust). */
+@Composable
+internal fun FingerprintChangedDialog(
+    pt: PendingTrust,
+    onRepair: () -> Unit,
+    onDismiss: () -> Unit,
+) {
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text("Host identity changed") },
+        text = {
+            Text(
+                "The pinned fingerprint for ${pt.host} no longer matches what it now " +
+                    "advertises. This can mean a host reinstall — or an impostor. Re-pair " +
+                    "with the host's PIN to continue.",
+            )
+        },
+        confirmButton = {
+            TextButton(onClick = onRepair) { Text("Re-pair") }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismiss) { Text("Cancel") }
+        },
+    )
+}
+
+/**
+ * A fresh pair=required (or manual/unknown-policy) host: offer the two ways in. "Request access" is
+ * the no-PIN path — connect and wait for the operator to click Approve in the host's console;
+ * "Use a PIN…" switches to the SPAKE2 ceremony.
+ */
+@Composable
+internal fun RequestAccessDialog(
+    pt: PendingTrust,
+    onRequestAccess: () -> Unit,
+    onUsePin: () -> Unit,
+    onDismiss: () -> Unit,
+) {
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text("Pairing required") },
+        text = {
+            Column {
+                Text("${pt.host}:${pt.port} requires pairing before it will stream.")
+                Text(
+                    "Request access and approve this device in the host's console (or web " +
+                        "UI) — no PIN needed. Or pair with the 4-digit PIN the host displays.",
+                )
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = onRequestAccess) { Text("Request access") }
+        },
+        dismissButton = {
+            Row {
+                TextButton(onClick = onUsePin) { Text("Use a PIN…") }
+                TextButton(onClick = onDismiss) { Text("Cancel") }
+            }
+        },
+    )
+}
+
+/**
+ * The SPAKE2 PIN ceremony dialog. Runs [NativeBridge.nativePair] off the UI thread itself (the
+ * pin/name/error state is dialog-local); on success hands the host's verified fingerprint to
+ * [onPaired], which saves + connects. Dismissal is blocked while a pair attempt is in flight.
+ */
+@Composable
+internal fun PairPinDialog(
+    pt: PendingTrust,
+    identity: ClientIdentity?,
+    onPaired: (fpHex: String) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    val scope = rememberCoroutineScope()
+    var pin by remember(pt) { mutableStateOf("") }
+    var name by remember(pt) { mutableStateOf(Build.MODEL ?: "Android") }
+    var pairing by remember(pt) { mutableStateOf(false) }
+    var err by remember(pt) { mutableStateOf<String?>(null) }
+    AlertDialog(
+        onDismissRequest = { if (!pairing) onDismiss() },
+        title = { Text("Pair with PIN") },
+        text = {
+            Column {
+                Text("Enter the 4-digit PIN shown on the host.")
+                OutlinedTextField(
+                    value = pin,
+                    onValueChange = { v -> pin = v.filter { it.isDigit() }.take(4) },
+                    label = { Text("PIN") },
+                    singleLine = true,
+                    keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
+                )
+                OutlinedTextField(
+                    value = name,
+                    onValueChange = { name = it },
+                    label = { Text("This device") },
+                    singleLine = true,
+                )
+                err?.let { Text(it, color = MaterialTheme.colorScheme.error) }
+            }
+        },
+        confirmButton = {
+            TextButton(
+                enabled = !pairing && pin.length == 4 && identity != null,
+                onClick = {
+                    val id = identity
+                    if (id != null) {
+                        pairing = true
+                        err = null
+                        scope.launch {
+                            val fp = withContext(Dispatchers.IO) {
+                                NativeBridge.nativePair(
+                                    pt.host, pt.port, id.certPem, id.privateKeyPem, pin, name,
+                                )
+                            }
+                            pairing = false
+                            if (fp.isNotEmpty()) {
+                                onPaired(fp) // verified host fp — caller saves + connects
+                            } else {
+                                err = "Pairing failed — wrong PIN, or the host isn't armed."
+                            }
+                        }
+                    }
+                },
+            ) { Text(if (pairing) "Pairing…" else "Pair") }
+        },
+        dismissButton = {
+            TextButton(enabled = !pairing, onClick = onDismiss) { Text("Cancel") }
+        },
+    )
+}
+
+/**
+ * The no-PIN "request access" wait: the connect is parked on the host until the operator approves
+ * this device. Cancel returns the UI immediately — the caller trips the per-attempt flag so a late
+ * approval is torn down silently (see ConnectScreen.requestAccess) and resumes discovery.
+ */
+@Composable
+internal fun AwaitingApprovalDialog(hostLabel: String, onCancel: () -> Unit) {
+    AlertDialog(
+        onDismissRequest = onCancel,
+        title = { Text("Waiting for approval") },
+        text = {
+            val deviceName = Build.MODEL ?: "this device"
+            Column(verticalArrangement = Arrangement.spacedBy(12.dp)) {
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.spacedBy(12.dp),
+                ) {
+                    CircularProgressIndicator(modifier = Modifier.size(20.dp), strokeWidth = 2.dp)
+                    Text("Approve this device on $hostLabel.")
+                }
+                Text(
+                    "Open the host's console (or web UI) and approve “$deviceName”. It connects " +
+                        "automatically once you approve — no PIN needed.",
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+        },
+        confirmButton = {},
+        dismissButton = {
+            TextButton(onClick = onCancel) { Text("Cancel") }
+        },
+    )
+}
+
+/**
+ * Rename a saved host's label (discovered hosts are named by mDNS; this is how you give one a
+ * friendly name like "Living Room" after pairing). Keyed by the host so reopening resets the field.
+ */
+@Composable
+internal fun RenameHostDialog(
+    target: KnownHost,
+    onRename: (String) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    var newName by remember(target) { mutableStateOf(target.name) }
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text("Rename host") },
+        text = {
+            OutlinedTextField(
+                value = newName,
+                onValueChange = { newName = it },
+                label = { Text("Name") },
+                placeholder = { Text(target.address) },
+                singleLine = true,
+            )
+        },
+        confirmButton = {
+            TextButton(
+                enabled = newName.isNotBlank(),
+                onClick = { onRename(newName.trim()) },
+            ) { Text("Save") }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismiss) { Text("Cancel") }
+        },
+    )
+}

clients/android/app/src/main/kotlin/io/unom/punktfunk/ConnectScreen.kt

@@ -6,11 +6,6 @@ import android.content.pm.PackageManager
 import android.os.Build
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
-import androidx.compose.animation.AnimatedVisibility
-import androidx.compose.animation.fadeIn
-import androidx.compose.animation.fadeOut
-import androidx.compose.animation.scaleIn
-import androidx.compose.animation.scaleOut
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -27,24 +22,14 @@ import androidx.compose.foundation.lazy.grid.GridCells
 import androidx.compose.foundation.lazy.grid.GridItemSpan
 import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
 import androidx.compose.foundation.lazy.grid.items
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.text.KeyboardOptions
-import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Add
-import androidx.compose.material3.AlertDialog
-import androidx.compose.material3.Button
 import androidx.compose.material3.CircularProgressIndicator
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.ExtendedFloatingActionButton
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.ModalBottomSheet
-import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
-import androidx.compose.material3.rememberModalBottomSheetState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
@@ -56,7 +41,6 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.core.content.ContextCompat
@@ -99,7 +83,6 @@ private class RequestAccessState(val target: PendingTrust) {
     val cancelled = AtomicBoolean(false)
 }
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun ConnectScreen(settings: Settings, onConnected: (Long) -> Unit) {
     val scope = rememberCoroutineScope()
@@ -162,6 +145,26 @@ fun ConnectScreen(settings: Settings, onConnected: (Long) -> Unit) {
     // it survives a DHCP address change; else by address:port). Mirrors the Apple client.
     val discoveredUnsaved = discovered.filter { dh -> savedHosts.none { it.matches(dh) } }
 
+    // The one place the full nativeConnect is issued (shared by the normal connect and the
+    // request-access path), including the HDR/gamepad derivation both need.
+    suspend fun connectNative(id: ClientIdentity, targetHost: String, targetPort: Int, pinHex: String, timeoutMs: Int): Long {
+        // Advertise HDR only when the user enabled it AND this device's display can present it
+        // (else the host sends a proper SDR stream rather than PQ the panel would mis-tone-map).
+        val hdrEnabled = settings.hdrEnabled && displaySupportsHdr(context)
+        // "Automatic" resolves to a concrete pad type from the connected controller's VID/PID
+        // (Android exposes no controller-type enum) — parity with the Linux/Apple clients. An
+        // explicit choice is passed through unchanged.
+        val gamepadPref = Gamepad.resolvePref(settings.gamepad)
+        return withContext(Dispatchers.IO) {
+            NativeBridge.nativeConnect(
+                targetHost, targetPort, w, h, hz,
+                id.certPem, id.privateKeyPem, pinHex,
+                settings.bitrateKbps, settings.compositor, gamepadPref,
+                hdrEnabled, settings.audioChannels, settings.preferredCodec(), timeoutMs,
+            )
+        }
+    }
+
     // Issue the actual connect with identity + (optional) pin. On a TOFU connect (pinHex null),
     // pin the fingerprint the host presented (as an unpaired known host) so the next connect goes
     // straight through and it appears in the saved-hosts list.
@@ -175,21 +178,7 @@ fun ConnectScreen(settings: Settings, onConnected: (Long) -> Unit) {
         status = "Connecting to $targetHost:$targetPort…"
         discovery.stop() // free the Wi-Fi radio before the stream session
         scope.launch {
-            // Advertise HDR only when the user enabled it AND this device's display can present it
-            // (else the host sends a proper SDR stream rather than PQ the panel would mis-tone-map).
-            val hdrEnabled = settings.hdrEnabled && displaySupportsHdr(context)
-            // "Automatic" resolves to a concrete pad type from the connected controller's VID/PID
-            // (Android exposes no controller-type enum) — parity with the Linux/Apple clients. An
-            // explicit choice is passed through unchanged.
-            val gamepadPref = Gamepad.resolvePref(settings.gamepad)
-            val handle = withContext(Dispatchers.IO) {
-                NativeBridge.nativeConnect(
-                    targetHost, targetPort, w, h, hz,
-                    id.certPem, id.privateKeyPem, pinHex ?: "",
-                    settings.bitrateKbps, settings.compositor, gamepadPref,
-                    hdrEnabled, settings.audioChannels, CONNECT_TIMEOUT_MS,
-                )
-            }
+            val handle = connectNative(id, targetHost, targetPort, pinHex ?: "", CONNECT_TIMEOUT_MS)
             connecting = false
             if (handle != 0L) {
                 if (pinHex == null) { // TOFU: pin what we observed (unpaired)
@@ -224,19 +213,10 @@ fun ConnectScreen(settings: Settings, onConnected: (Long) -> Unit) {
         status = null
         discovery.stop() // free the Wi-Fi radio before the (parked) stream session
         scope.launch {
-            val hdrEnabled = settings.hdrEnabled && displaySupportsHdr(context)
-            val gamepadPref = Gamepad.resolvePref(settings.gamepad)
             // Pin the advertised fingerprint for a discovered host (defence against an impostor while
             // we wait); a manually-typed host has none, so trust-on-first-use.
             val pinHex = target.advertisedFp ?: ""
-            val handle = withContext(Dispatchers.IO) {
-                NativeBridge.nativeConnect(
-                    target.host, target.port, w, h, hz,
-                    id.certPem, id.privateKeyPem, pinHex,
-                    settings.bitrateKbps, settings.compositor, gamepadPref,
-                    hdrEnabled, settings.audioChannels, REQUEST_ACCESS_TIMEOUT_MS,
-                )
-            }
+            val handle = connectNative(id, target.host, target.port, pinHex, REQUEST_ACCESS_TIMEOUT_MS)
             // Cancelled while we were parked: tear the (possibly just-approved) session down and
             // don't touch UI a fresh action may now own.
             if (req.cancelled.get()) {
@@ -295,7 +275,6 @@ fun ConnectScreen(settings: Settings, onConnected: (Long) -> Unit) {
         }
     }
 
-    val sheetState = rememberModalBottomSheetState()
     var showManualSheet by remember { mutableStateOf(false) }
 
     Box(Modifier.fillMaxSize()) {
@@ -427,291 +406,87 @@ fun ConnectScreen(settings: Settings, onConnected: (Long) -> Unit) {
             }
         }
 
-        AnimatedVisibility(
-            visible = true, // Static for now, could be based on scroll if needed
-            enter = scaleIn() + fadeIn(),
-            exit = scaleOut() + fadeOut(),
-            modifier = Modifier
-                .align(Alignment.BottomEnd)
-                .padding(20.dp)
-        ) {
         ExtendedFloatingActionButton(
             onClick = { showManualSheet = true },
             icon = { Icon(Icons.Filled.Add, contentDescription = null) },
             text = { Text("Add host") },
             expanded = !connecting,
+            modifier = Modifier
+                .align(Alignment.BottomEnd)
+                .padding(20.dp),
         )
     }
-    }
 
     if (showManualSheet) {
-        ModalBottomSheet(
-            onDismissRequest = { showManualSheet = false },
-            sheetState = sheetState,
-        ) {
-            Column(
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .padding(horizontal = 24.dp)
-                    .padding(bottom = 32.dp),
-            ) {
-                Text("Add a host", style = MaterialTheme.typography.titleLarge)
-                Spacer(Modifier.height(4.dp))
-                Text(
-                    "Enter its address. You'll pair with the host's PIN on first connect.",
-                    style = MaterialTheme.typography.bodyMedium,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+        AddHostSheet(
+            hostName = hostName,
+            onHostNameChange = { hostName = it },
+            host = host,
+            onHostChange = { host = it },
+            port = port,
+            onPortChange = { port = it },
+            connecting = connecting,
+            modeLabel = "$w×$h@$hz",
+            onDismiss = { showManualSheet = false },
+            onConnect = { h2, p, n -> connect(h2, p, manualName = n) },
         )
-                Spacer(Modifier.height(20.dp))
-                OutlinedTextField(
-                    value = hostName,
-                    onValueChange = { hostName = it },
-                    label = { Text("Name (optional)") },
-                    placeholder = { Text("e.g. Living Room") },
-                    singleLine = true,
-                    modifier = Modifier.fillMaxWidth(),
-                )
-                Spacer(Modifier.height(16.dp))
-                OutlinedTextField(
-                    value = host,
-                    onValueChange = { host = it },
-                    label = { Text("Host") },
-                    singleLine = true,
-                    modifier = Modifier.fillMaxWidth(),
-                )
-                Spacer(Modifier.height(16.dp))
-                OutlinedTextField(
-                    value = port,
-                    onValueChange = { v -> port = v.filter { it.isDigit() }.take(5) },
-                    label = { Text("Port") },
-                    singleLine = true,
-                    keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
-                    modifier = Modifier.fillMaxWidth(),
-                )
-                Spacer(Modifier.height(20.dp))
-                Button(
-                    enabled = !connecting && host.isNotBlank() && port.isNotBlank(),
-                    onClick = {
-                        val h = host.trim()
-                        val p = port.toIntOrNull() ?: 9777
-                        val n = hostName
-                        scope.launch { sheetState.hide() }.invokeOnCompletion {
-                            showManualSheet = false
-                            connect(h, p, manualName = n)
-                        }
-                    },
-                    modifier = Modifier.fillMaxWidth(),
-                ) { Text("Connect  ($w×$h@$hz)") }
-            }
-        }
     }
 
     pendingTrust?.let { pt ->
         when (pt.kind) {
-            PendingTrust.Kind.TRUST_NEW -> AlertDialog(
-                onDismissRequest = { pendingTrust = null },
-                title = { Text("Trust this host?") },
-                text = {
-                    Column {
-                        Text("First connection to ${pt.host}:${pt.port}.")
-                        pt.advertisedFp?.let { Text("Fingerprint ${it.take(16)}…") }
-                        Text(
-                            "This host allows trust-on-first-use, but that can't tell an impostor " +
-                                "from the real host. Pairing with a PIN is stronger — it proves both sides.",
+            PendingTrust.Kind.TRUST_NEW -> TrustNewHostDialog(
+                pt = pt,
+                onTrust = { pendingTrust = null; doConnect(pt.host, pt.port, pt.name, null) },
+                onPairInstead = { pendingTrust = pt.copy(kind = PendingTrust.Kind.PAIR) },
+                onDismiss = { pendingTrust = null },
             )
-                    }
-                },
-                confirmButton = {
-                    TextButton({ pendingTrust = null; doConnect(pt.host, pt.port, pt.name, null) }) {
-                        Text("Trust (TOFU)")
-                    }
-                },
-                dismissButton = {
-                    Row {
-                        TextButton({ pendingTrust = pt.copy(kind = PendingTrust.Kind.PAIR) }) {
-                            Text("Pair with PIN…")
-                        }
-                        TextButton({ pendingTrust = null }) { Text("Cancel") }
-                    }
-                },
+            PendingTrust.Kind.FP_CHANGED -> FingerprintChangedDialog(
+                pt = pt,
+                onRepair = { pendingTrust = pt.copy(kind = PendingTrust.Kind.PAIR) },
+                onDismiss = { pendingTrust = null },
             )
-            PendingTrust.Kind.FP_CHANGED -> AlertDialog(
-                onDismissRequest = { pendingTrust = null },
-                title = { Text("Host identity changed") },
-                text = {
-                    Text(
-                        "The pinned fingerprint for ${pt.host} no longer matches what it now " +
-                            "advertises. This can mean a host reinstall — or an impostor. Re-pair " +
-                            "with the host's PIN to continue.",
-                    )
-                },
-                confirmButton = {
-                    TextButton({ pendingTrust = pt.copy(kind = PendingTrust.Kind.PAIR) }) { Text("Re-pair") }
-                },
-                dismissButton = {
-                    TextButton({ pendingTrust = null }) { Text("Cancel") }
-                },
-            )
-            // A fresh pair=required (or manual/unknown-policy) host: offer the two ways in. "Request
-            // access" is the no-PIN path — connect and wait for the operator to click Approve in the
-            // host's console; "Use a PIN…" switches to the SPAKE2 ceremony.
-            PendingTrust.Kind.REQUEST_ACCESS -> AlertDialog(
-                onDismissRequest = { pendingTrust = null },
-                title = { Text("Pairing required") },
-                text = {
-                    Column {
-                        Text("${pt.host}:${pt.port} requires pairing before it will stream.")
-                        Text(
-                            "Request access and approve this device in the host's console (or web " +
-                                "UI) — no PIN needed. Or pair with the 4-digit PIN the host displays.",
-                        )
-                    }
-                },
-                confirmButton = {
-                    TextButton({ pendingTrust = null; requestAccess(pt) }) { Text("Request access") }
-                },
-                dismissButton = {
-                    Row {
-                        TextButton({ pendingTrust = pt.copy(kind = PendingTrust.Kind.PAIR) }) {
-                            Text("Use a PIN…")
-                        }
-                        TextButton({ pendingTrust = null }) { Text("Cancel") }
-                    }
-                },
-            )
-            PendingTrust.Kind.PAIR -> {
-                var pin by remember(pt) { mutableStateOf("") }
-                var name by remember(pt) { mutableStateOf(Build.MODEL ?: "Android") }
-                var pairing by remember(pt) { mutableStateOf(false) }
-                var err by remember(pt) { mutableStateOf<String?>(null) }
-                AlertDialog(
-                    onDismissRequest = { if (!pairing) pendingTrust = null },
-                    title = { Text("Pair with PIN") },
-                    text = {
-                        Column {
-                            Text("Enter the 4-digit PIN shown on the host.")
-                            OutlinedTextField(
-                                value = pin,
-                                onValueChange = { v -> pin = v.filter { it.isDigit() }.take(4) },
-                                label = { Text("PIN") },
-                                singleLine = true,
-                                keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
-                            )
-                            OutlinedTextField(
-                                value = name,
-                                onValueChange = { name = it },
-                                label = { Text("This device") },
-                                singleLine = true,
-                            )
-                            err?.let { Text(it, color = MaterialTheme.colorScheme.error) }
-                        }
-                    },
-                    confirmButton = {
-                        TextButton(
-                            enabled = !pairing && pin.length == 4 && identity != null,
-                            onClick = {
-                                val id = identity
-                                if (id != null) {
-                                    pairing = true
-                                    err = null
-                                    scope.launch {
-                                        val fp = withContext(Dispatchers.IO) {
-                                            NativeBridge.nativePair(
-                                                pt.host, pt.port, id.certPem, id.privateKeyPem, pin, name,
-                                            )
-                                        }
-                                        pairing = false
-                                        if (fp.isNotEmpty()) {
-                                            // Verified host fp — save as a paired known host.
-                                            knownHostStore.save(
-                                                KnownHost(pt.host, pt.port, pt.name, fp, paired = true),
+            PendingTrust.Kind.REQUEST_ACCESS -> RequestAccessDialog(
+                pt = pt,
+                onRequestAccess = { pendingTrust = null; requestAccess(pt) },
+                onUsePin = { pendingTrust = pt.copy(kind = PendingTrust.Kind.PAIR) },
+                onDismiss = { pendingTrust = null },
             )
+            PendingTrust.Kind.PAIR -> PairPinDialog(
+                pt = pt,
+                identity = identity,
+                onPaired = { fp ->
+                    // Verified host fp — save as a paired known host, then connect pinned.
+                    knownHostStore.save(KnownHost(pt.host, pt.port, pt.name, fp, paired = true))
                     savedHosts = knownHostStore.all()
                     pendingTrust = null
                     doConnect(pt.host, pt.port, pt.name, fp)
-                                        } else {
-                                            err = "Pairing failed — wrong PIN, or the host isn't armed."
-                                        }
-                                    }
-                                }
-                            },
-                        ) { Text(if (pairing) "Pairing…" else "Pair") }
-                    },
-                    dismissButton = {
-                        TextButton(enabled = !pairing, onClick = { pendingTrust = null }) { Text("Cancel") }
                 },
+                onDismiss = { pendingTrust = null },
             )
         }
     }
-    }
 
-    // The no-PIN "request access" wait: the connect is parked on the host until the operator
-    // approves this device. Cancel returns the UI immediately — it trips the per-attempt flag so a
-    // late approval is torn down silently (see requestAccess) and resumes discovery.
     awaiting?.let { req ->
-        fun cancel() {
+        AwaitingApprovalDialog(
+            hostLabel = req.target.name,
+            onCancel = {
                 req.cancelled.set(true)
                 awaiting = null
                 connecting = false
                 discovery.start() // the request may still be pending on the host; keep scanning
-        }
-        AlertDialog(
-            onDismissRequest = { cancel() },
-            title = { Text("Waiting for approval") },
-            text = {
-                val deviceName = Build.MODEL ?: "this device"
-                Column(verticalArrangement = Arrangement.spacedBy(12.dp)) {
-                    Row(
-                        verticalAlignment = Alignment.CenterVertically,
-                        horizontalArrangement = Arrangement.spacedBy(12.dp),
-                    ) {
-                        CircularProgressIndicator(modifier = Modifier.size(20.dp), strokeWidth = 2.dp)
-                        Text("Approve this device on ${req.target.name}.")
-                    }
-                    Text(
-                        "Open the host's console (or web UI) and approve “$deviceName”. It connects " +
-                            "automatically once you approve — no PIN needed.",
-                        style = MaterialTheme.typography.bodyMedium,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                    )
-                }
-            },
-            confirmButton = {},
-            dismissButton = {
-                TextButton(onClick = { cancel() }) { Text("Cancel") }
             },
         )
     }
 
-    // Rename a saved host's label (discovered hosts are named by mDNS; this is how you give one a
-    // friendly name like "Living Room" after pairing). Keyed by the host so reopening resets the field.
     renameTarget?.let { kh ->
-        var newName by remember(kh) { mutableStateOf(kh.name) }
-        AlertDialog(
-            onDismissRequest = { renameTarget = null },
-            title = { Text("Rename host") },
-            text = {
-                OutlinedTextField(
-                    value = newName,
-                    onValueChange = { newName = it },
-                    label = { Text("Name") },
-                    placeholder = { Text(kh.address) },
-                    singleLine = true,
-                )
-            },
-            confirmButton = {
-                TextButton(
-                    enabled = newName.isNotBlank(),
-                    onClick = {
-                        knownHostStore.rename(kh.address, kh.port, newName.trim())
+        RenameHostDialog(
+            target = kh,
+            onRename = { newName ->
+                knownHostStore.rename(kh.address, kh.port, newName)
                 savedHosts = knownHostStore.all()
                 renameTarget = null
             },
-                ) { Text("Save") }
-            },
-            dismissButton = {
-                TextButton(onClick = { renameTarget = null }) { Text("Cancel") }
-            },
+            onDismiss = { renameTarget = null },
         )
     }
 }

clients/android/app/src/main/kotlin/io/unom/punktfunk/ControllersScreen.kt

@@ -0,0 +1,382 @@
+package io.unom.punktfunk
+
+import android.hardware.input.InputManager
+import android.os.CombinedVibration
+import android.os.Handler
+import android.os.Looper
+import android.os.VibrationEffect
+import android.view.InputDevice
+import android.view.KeyEvent
+import android.view.MotionEvent
+import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ColumnScope
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.FlowRow
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.LinearProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.OutlinedCard
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.mutableStateMapOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.dp
+import io.unom.punktfunk.kit.Gamepad
+import kotlinx.coroutines.delay
+
+/**
+ * Connected-controllers debug view (Settings → Host → Connected controllers): everything the app
+ * can see about attached input devices, plus a live input test. This exists for exactly the support
+ * case where a pad "doesn't work" — adapters and BT-to-USB dongles often enumerate with a different
+ * identity than the physical pad, or not as a gamepad at all, and punktfunk only forwards devices
+ * Android classifies as gamepad/joystick. This screen makes that visible on the device itself.
+ */
+@Composable
+fun ControllersScreen(gamepadSetting: Int, onBack: () -> Unit) {
+    BackHandler(onBack = onBack)
+    val context = LocalContext.current
+    val activity = context as? MainActivity
+
+    // Device list, re-read on every hot-plug event.
+    var generation by remember { mutableIntStateOf(0) }
+    val pads = remember(generation) { Gamepad.pads() }
+    val others = remember(generation) {
+        InputDevice.getDeviceIds()
+            .toList()
+            .mapNotNull { InputDevice.getDevice(it) }
+            .filter { !it.isVirtual && !Gamepad.isPad(it) }
+    }
+    DisposableEffect(Unit) {
+        val im = context.getSystemService(InputManager::class.java)
+        val listener = object : InputManager.InputDeviceListener {
+            override fun onInputDeviceAdded(deviceId: Int) { generation++ }
+            override fun onInputDeviceRemoved(deviceId: Int) { generation++ }
+            override fun onInputDeviceChanged(deviceId: Int) { generation++ }
+        }
+        im.registerInputDeviceListener(listener, Handler(Looper.getMainLooper()))
+        onDispose { im.unregisterInputDeviceListener(listener) }
+    }
+
+    // Live input test. While `testing`, the MainActivity probes consume pad events (so they show up
+    // here instead of driving focus navigation); holding B releases, since the pad can no longer
+    // reach the Switch. Events are observed (not consumed) even when the test is off, so the
+    // "last input" line works while browsing.
+    var testing by remember { mutableStateOf(false) }
+    val held = remember { mutableStateMapOf<Int, Boolean>() }
+    val axes = remember { mutableStateMapOf<String, Float>() }
+    var lastInput by remember { mutableStateOf<String?>(null) }
+    var bHeld by remember { mutableStateOf(false) }
+
+    DisposableEffect(Unit) {
+        activity?.padKeyProbe = probe@{ event ->
+            if (!Gamepad.isPad(event.device)) return@probe false
+            when (event.action) {
+                KeyEvent.ACTION_DOWN -> {
+                    held[event.keyCode] = true
+                    if (event.keyCode == KeyEvent.KEYCODE_BUTTON_B) bHeld = true
+                }
+                KeyEvent.ACTION_UP -> {
+                    held[event.keyCode] = false
+                    if (event.keyCode == KeyEvent.KEYCODE_BUTTON_B) bHeld = false
+                }
+            }
+            lastInput = "${event.device?.name}: ${KeyEvent.keyCodeToString(event.keyCode)}"
+            testing
+        }
+        activity?.padMotionProbe = probe@{ event ->
+            if (!Gamepad.isPad(event.device)) return@probe false
+            axes["LX"] = event.getAxisValue(MotionEvent.AXIS_X)
+            axes["LY"] = event.getAxisValue(MotionEvent.AXIS_Y)
+            axes["RX"] = event.getAxisValue(MotionEvent.AXIS_Z)
+            axes["RY"] = event.getAxisValue(MotionEvent.AXIS_RZ)
+            axes["LT"] = maxOf(
+                event.getAxisValue(MotionEvent.AXIS_LTRIGGER),
+                event.getAxisValue(MotionEvent.AXIS_BRAKE),
+            )
+            axes["RT"] = maxOf(
+                event.getAxisValue(MotionEvent.AXIS_RTRIGGER),
+                event.getAxisValue(MotionEvent.AXIS_GAS),
+            )
+            axes["HX"] = event.getAxisValue(MotionEvent.AXIS_HAT_X)
+            axes["HY"] = event.getAxisValue(MotionEvent.AXIS_HAT_Y)
+            testing
+        }
+        onDispose {
+            activity?.padKeyProbe = null
+            activity?.padMotionProbe = null
+        }
+    }
+    // Hold-B-to-exit: with events consumed, the pad can't reach the Switch — a 1.2 s hold ends the
+    // test instead (touch still works). A short tap cancels the effect before the delay fires.
+    LaunchedEffect(bHeld) {
+        if (bHeld && testing) {
+            delay(1_200)
+            testing = false
+            held.clear()
+        }
+    }
+
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .verticalScroll(rememberScrollState())
+            .padding(horizontal = 20.dp, vertical = 24.dp),
+        verticalArrangement = Arrangement.spacedBy(24.dp),
+    ) {
+        Text("Controllers", style = MaterialTheme.typography.headlineMedium)
+
+        Group("Gamepads") {
+            if (pads.isEmpty()) {
+                Text(
+                    "No controller detected. punktfunk can only forward devices Android " +
+                        "classifies as a gamepad or joystick — a pad connected through an adapter " +
+                        "or hub may show up under \"Other input devices\" below with the adapter's " +
+                        "identity, or not at all.",
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+            pads.forEachIndexed { i, dev ->
+                PadRow(dev, forwarded = i == 0, gamepadSetting = gamepadSetting)
+            }
+        }
+
+        Group("Input test") {
+            Row(modifier = Modifier.fillMaxWidth(), verticalAlignment = Alignment.CenterVertically) {
+                Column(Modifier.weight(1f)) {
+                    Text("Test inputs", style = MaterialTheme.typography.bodyLarge)
+                    Text(
+                        if (testing) "Controller input stays on this screen — hold B to finish"
+                        else "Show button presses and stick motion live",
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+                Switch(checked = testing, onCheckedChange = { testing = it; if (!it) held.clear() })
+            }
+            if (testing) {
+                ButtonGrid(held)
+                AXIS_LABELS.forEach { label -> AxisBar(label, axes[label] ?: 0f) }
+            }
+            lastInput?.let {
+                Text(
+                    "Last input — $it",
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+        }
+
+        Group("Other input devices") {
+            if (others.isEmpty()) {
+                Text(
+                    "None",
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+            others.forEach { dev ->
+                Column {
+                    Text(dev.name, style = MaterialTheme.typography.bodyMedium)
+                    Text(
+                        deviceDetail(dev),
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+            }
+        }
+    }
+}
+
+/** One detected gamepad: identity, what it streams as, and a rumble test. */
+@Composable
+private fun PadRow(dev: InputDevice, forwarded: Boolean, gamepadSetting: Int) {
+    OutlinedCard(modifier = Modifier.fillMaxWidth()) {
+        Column(
+            modifier = Modifier.padding(16.dp),
+            verticalArrangement = Arrangement.spacedBy(6.dp),
+        ) {
+            Row(modifier = Modifier.fillMaxWidth(), verticalAlignment = Alignment.CenterVertically) {
+                Text(dev.name, style = MaterialTheme.typography.bodyLarge, modifier = Modifier.weight(1f))
+                if (forwarded) {
+                    Text(
+                        "forwarded to host",
+                        style = MaterialTheme.typography.labelSmall,
+                        color = MaterialTheme.colorScheme.primary,
+                    )
+                }
+            }
+            Text(
+                deviceDetail(dev),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+            val resolved = Gamepad.prefFor(dev)
+            Text(
+                if (gamepadSetting == Gamepad.PREF_AUTO) {
+                    "Streams as: ${prefLabel(resolved)} (automatic)"
+                } else {
+                    "Streams as: ${prefLabel(gamepadSetting)} (set in Settings; " +
+                        "automatic would pick ${prefLabel(resolved)})"
+                },
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+            val canRumble = dev.vibratorManager.vibratorIds.isNotEmpty()
+            if (canRumble) {
+                OutlinedButton(onClick = { testRumble(dev) }) { Text("Test rumble") }
+            } else {
+                Text(
+                    "No rumble motors reported — host rumble will be silent",
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+        }
+    }
+}
+
+/** The forwarded buttons as chips that light up while held. */
+@OptIn(ExperimentalLayoutApi::class)
+@Composable
+private fun ButtonGrid(held: Map<Int, Boolean>) {
+    FlowRow(
+        horizontalArrangement = Arrangement.spacedBy(6.dp),
+        verticalArrangement = Arrangement.spacedBy(6.dp),
+    ) {
+        TEST_BUTTONS.forEach { (label, keyCode) ->
+            val active = held[keyCode] == true
+            Text(
+                label,
+                style = MaterialTheme.typography.labelMedium,
+                color = if (active) MaterialTheme.colorScheme.onPrimary
+                else MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier
+                    .background(
+                        if (active) MaterialTheme.colorScheme.primary
+                        else MaterialTheme.colorScheme.surfaceVariant,
+                        RoundedCornerShape(6.dp),
+                    )
+                    .padding(horizontal = 10.dp, vertical = 6.dp),
+            )
+        }
+    }
+}
+
+/** A labelled live axis bar; sticks/HAT are −1..1 (centre = half), triggers 0..1. */
+@Composable
+private fun AxisBar(label: String, value: Float) {
+    val progress = if (label == "LT" || label == "RT") value else (value + 1f) / 2f
+    Row(modifier = Modifier.fillMaxWidth(), verticalAlignment = Alignment.CenterVertically) {
+        Text(label, style = MaterialTheme.typography.labelMedium, modifier = Modifier.width(32.dp))
+        LinearProgressIndicator(
+            progress = { progress.coerceIn(0f, 1f) },
+            modifier = Modifier.weight(1f),
+        )
+        Text(
+            "%+.2f".format(value),
+            style = MaterialTheme.typography.labelSmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier.padding(start = 8.dp),
+        )
+    }
+}
+
+/** A titled section — same look as the Settings groups. */
+@Composable
+private fun Group(title: String, content: @Composable ColumnScope.() -> Unit) {
+    Column(verticalArrangement = Arrangement.spacedBy(10.dp)) {
+        Text(
+            title,
+            style = MaterialTheme.typography.titleSmall,
+            color = MaterialTheme.colorScheme.primary,
+            modifier = Modifier.padding(start = 4.dp),
+        )
+        Column(verticalArrangement = Arrangement.spacedBy(12.dp), content = content)
+    }
+}
+
+private fun testRumble(dev: InputDevice) {
+    val vm = dev.vibratorManager
+    if (vm.vibratorIds.isEmpty()) return
+    runCatching {
+        vm.vibrate(CombinedVibration.createParallel(VibrationEffect.createOneShot(300, 200)))
+    }
+}
+
+/** Identity line: VID:PID + the source classes Android assigned. */
+private fun deviceDetail(dev: InputDevice): String =
+    "%04X:%04X · %s".format(dev.vendorId, dev.productId, sourcesLabel(dev.sources))
+
+private fun sourcesLabel(sources: Int): String {
+    fun has(flag: Int) = sources and flag == flag
+    val names = buildList {
+        if (has(InputDevice.SOURCE_GAMEPAD)) add("gamepad")
+        if (has(InputDevice.SOURCE_JOYSTICK)) add("joystick")
+        if (has(InputDevice.SOURCE_DPAD)) add("dpad")
+        if (has(InputDevice.SOURCE_KEYBOARD)) add("keyboard")
+        if (has(InputDevice.SOURCE_MOUSE)) add("mouse")
+        if (has(InputDevice.SOURCE_TOUCHSCREEN)) add("touchscreen")
+        if (has(InputDevice.SOURCE_TOUCHPAD)) add("touchpad")
+        if (has(InputDevice.SOURCE_STYLUS)) add("stylus")
+        if (has(InputDevice.SOURCE_ROTARY_ENCODER)) add("rotary")
+    }
+    return if (names.isEmpty()) "sources 0x%08X".format(sources) else names.joinToString(" · ")
+}
+
+/** [Gamepad] PREF_* wire byte → user-facing label (mirrors GAMEPAD_OPTIONS, plus the Steam types). */
+private fun prefLabel(pref: Int): String = when (pref) {
+    Gamepad.PREF_XBOX360 -> "Xbox 360"
+    Gamepad.PREF_DUALSENSE -> "DualSense"
+    Gamepad.PREF_XBOXONE -> "Xbox One"
+    Gamepad.PREF_DUALSHOCK4 -> "DualShock 4"
+    Gamepad.PREF_STEAMCONTROLLER -> "Steam Controller"
+    Gamepad.PREF_STEAMDECK -> "Steam Deck"
+    else -> "Automatic"
+}
+
+/** Buttons shown in the test grid (label → Android keycode). */
+private val TEST_BUTTONS = listOf(
+    "A" to KeyEvent.KEYCODE_BUTTON_A,
+    "B" to KeyEvent.KEYCODE_BUTTON_B,
+    "X" to KeyEvent.KEYCODE_BUTTON_X,
+    "Y" to KeyEvent.KEYCODE_BUTTON_Y,
+    "LB" to KeyEvent.KEYCODE_BUTTON_L1,
+    "RB" to KeyEvent.KEYCODE_BUTTON_R1,
+    "L2" to KeyEvent.KEYCODE_BUTTON_L2,
+    "R2" to KeyEvent.KEYCODE_BUTTON_R2,
+    "LS" to KeyEvent.KEYCODE_BUTTON_THUMBL,
+    "RS" to KeyEvent.KEYCODE_BUTTON_THUMBR,
+    "Select" to KeyEvent.KEYCODE_BUTTON_SELECT,
+    "Start" to KeyEvent.KEYCODE_BUTTON_START,
+    "Guide" to KeyEvent.KEYCODE_BUTTON_MODE,
+    "↑" to KeyEvent.KEYCODE_DPAD_UP,
+    "↓" to KeyEvent.KEYCODE_DPAD_DOWN,
+    "←" to KeyEvent.KEYCODE_DPAD_LEFT,
+    "→" to KeyEvent.KEYCODE_DPAD_RIGHT,
+)
+
+/** Axis bars shown in the test view, in display order. */
+private val AXIS_LABELS = listOf("LX", "LY", "RX", "RY", "LT", "RT", "HX", "HY")

clients/android/app/src/main/kotlin/io/unom/punktfunk/MainActivity.kt

@@ -26,6 +26,14 @@ class MainActivity : ComponentActivity() {
     /** Joystick-axis state mapper for the active session (built/reset by StreamScreen). */
     var axisMapper: Gamepad.AxisMapper? = null
 
+    /**
+     * Input observers for the Controllers debug screen (set while it is shown, like [streamHandle]).
+     * Called for every key/motion event while not streaming; a `true` return consumes the event —
+     * the screen's "test inputs" mode uses that to keep pad input from also driving focus navigation.
+     */
+    var padKeyProbe: ((KeyEvent) -> Boolean)? = null
+    var padMotionProbe: ((MotionEvent) -> Boolean)? = null
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         // Dark, transparent system bars regardless of the system theme — our UI is always dark, so
@@ -72,17 +80,22 @@ class MainActivity : ComponentActivity() {
                         KeyEvent.ACTION_UP -> false
                         else -> return super.dispatchKeyEvent(event)
                     }
-                    val vk = Keymap.toVk(event.keyCode)
+                    // Full-event overload: evdev scancode first (positional under ANY selected
+                    // physical-keyboard layout), keycode fallback — see Keymap docs.
+                    val vk = Keymap.toVk(event)
                     if (vk != 0) {
                         NativeBridge.nativeSendKey(handle, vk, down, 0)
                         return true // consumed — don't let the system also act on it
                     }
                 }
             }
-        } else if (event.isFromSource(InputDevice.SOURCE_GAMEPAD)) {
+        } else {
+            // The Controllers debug screen sees pad events before the navigation remap below.
+            padKeyProbe?.let { if (it(event)) return true }
+            if (event.isFromSource(InputDevice.SOURCE_GAMEPAD)) {
                 // Not streaming: a game controller drives the Compose UI (TV + phone). Map the face
-            // buttons to the navigation keys the focus system understands; D-pad *keys* already move
-            // focus on their own, so they fall through to super untouched.
+                // buttons to the navigation keys the focus system understands; D-pad *keys* already
+                // move focus on their own, so they fall through to super untouched.
                 val mapped = when (event.keyCode) {
                     KeyEvent.KEYCODE_BUTTON_A -> KeyEvent.KEYCODE_DPAD_CENTER // activate focused element
                     KeyEvent.KEYCODE_BUTTON_B -> KeyEvent.KEYCODE_BACK // back / dismiss
@@ -90,6 +103,7 @@ class MainActivity : ComponentActivity() {
                 }
                 if (mapped != 0) return super.dispatchKeyEvent(KeyEvent(event.action, mapped))
             }
+        }
         return super.dispatchKeyEvent(event)
     }
 
@@ -101,6 +115,8 @@ class MainActivity : ComponentActivity() {
             if (axisMapper?.onMotion(event) == true) return true
             return super.dispatchGenericMotionEvent(event)
         }
+        // The Controllers debug screen sees pad motion before the stick→D-pad synthesis below.
+        padMotionProbe?.let { if (it(event)) return true }
         // Not streaming: turn the gamepad HAT / left stick into discrete D-pad focus moves, so a
         // controller navigates the menus even when its D-pad reports as axes (not key events) and
         // for stick-based navigation. Edge-detected so a held direction moves focus exactly once.

clients/android/app/src/main/kotlin/io/unom/punktfunk/Settings.kt

@@ -26,17 +26,26 @@ data class Settings(
     /** Requested audio channel count: 2 (stereo), 6 (5.1) or 8 (7.1). The host clamps to what it
      * can capture; the resolved count drives the decoder + AAudio layout. */
     val audioChannels: Int = 2,
+    /** Preferred video codec: `"auto"` (host decides), `"hevc"`, or `"h264"`. A soft preference — the
+     * host emits it when it can, else falls back. AMediaCodec decodes whichever the host resolves. */
+    val codec: String = "auto",
     val micEnabled: Boolean = false,
     /** Show the live stats overlay (FPS / throughput / latency) during a stream. */
     val statsHudEnabled: Boolean = true,
     /**
-     * Touch input model. `true` (default) = trackpad: the cursor stays put on touch-down and moves
-     * by the finger's relative delta (swipe to nudge, lift and re-swipe to walk it across), tap to
-     * click where it is. `false` = direct pointing: the cursor jumps to the finger (the old behaviour).
+     * Touch input model — how touchscreen fingers drive the host. [TouchMode.TRACKPAD] (default):
+     * the cursor stays put on touch-down and moves by the finger's relative delta (swipe to nudge,
+     * lift and re-swipe to walk it across), tap to click where it is. [TouchMode.POINTER]: the
+     * cursor jumps to the finger (direct pointing). [TouchMode.TOUCH]: real multi-touch
+     * passthrough — every finger reaches the host as a touchscreen contact, for apps/games that
+     * understand touch. Mirrors the Apple client's TouchInputMode.
      */
-    val trackpadMode: Boolean = true,
+    val touchMode: TouchMode = TouchMode.TRACKPAD,
 )
 
+/** [Settings.touchMode] values; persisted by name. */
+enum class TouchMode { TRACKPAD, POINTER, TOUCH }
+
 /** Loads/saves [Settings] in the app-private `punktfunk_settings` prefs. */
 class SettingsStore(context: Context) {
     private val prefs =
@@ -51,9 +60,13 @@ class SettingsStore(context: Context) {
         compositor = prefs.getInt(K_COMPOSITOR, 0),
         gamepad = prefs.getInt(K_GAMEPAD, 0),
         audioChannels = prefs.getInt(K_AUDIO_CH, 2),
+        codec = prefs.getString(K_CODEC, "auto") ?: "auto",
         micEnabled = prefs.getBoolean(K_MIC, false),
         statsHudEnabled = prefs.getBoolean(K_HUD, true),
-        trackpadMode = prefs.getBoolean(K_TRACKPAD, true),
+        touchMode = prefs.getString(K_TOUCH_MODE, null)
+            ?.let { name -> TouchMode.entries.firstOrNull { it.name == name } }
+            // Migration: the pre-enum Boolean "trackpad_mode" (true = trackpad, false = direct).
+            ?: if (prefs.getBoolean(K_TRACKPAD, true)) TouchMode.TRACKPAD else TouchMode.POINTER,
     )
 
     fun save(s: Settings) {
@@ -66,9 +79,10 @@ class SettingsStore(context: Context) {
             .putInt(K_COMPOSITOR, s.compositor)
             .putInt(K_GAMEPAD, s.gamepad)
             .putInt(K_AUDIO_CH, s.audioChannels)
+            .putString(K_CODEC, s.codec)
             .putBoolean(K_MIC, s.micEnabled)
             .putBoolean(K_HUD, s.statsHudEnabled)
-            .putBoolean(K_TRACKPAD, s.trackpadMode)
+            .putString(K_TOUCH_MODE, s.touchMode.name)
             .apply()
     }
 
@@ -81,8 +95,12 @@ class SettingsStore(context: Context) {
         const val K_COMPOSITOR = "compositor"
         const val K_GAMEPAD = "gamepad"
         const val K_AUDIO_CH = "audio_channels"
+        const val K_CODEC = "codec"
         const val K_MIC = "mic_enabled"
         const val K_HUD = "stats_hud_enabled"
+        const val K_TOUCH_MODE = "touch_mode"
+
+        /** Legacy Boolean the enum replaced — read once as the migration default, never written. */
         const val K_TRACKPAD = "trackpad_mode"
     }
 }
@@ -156,6 +174,21 @@ val AUDIO_CHANNEL_OPTIONS = listOf(
     8 to "7.1 Surround",
 )
 
+/** (stored value, label) for the preferred video codec. `"auto"` = host decides. */
+val CODEC_OPTIONS = listOf(
+    "auto" to "Automatic",
+    "hevc" to "HEVC (H.265)",
+    "h264" to "H.264 (AVC)",
+)
+
+/** The [Settings.codec] string as a `quic::CODEC_*` preference byte (`0` = auto). H264=1, HEVC=2. */
+fun Settings.preferredCodec(): Int = when (codec) {
+    "h264" -> 1
+    "hevc" -> 2
+    "av1" -> 4
+    else -> 0
+}
+
 /** (kbps, label). `0` = host default. */
 val BITRATE_OPTIONS = listOf(
     0 to "Automatic",
@@ -174,6 +207,13 @@ val COMPOSITOR_OPTIONS = listOf(
     "gamescope",
 )
 
+/** (mode, label) for the touch-input model. */
+val TOUCH_MODE_OPTIONS = listOf(
+    TouchMode.TRACKPAD to "Trackpad",
+    TouchMode.POINTER to "Direct pointer",
+    TouchMode.TOUCH to "Touch passthrough",
+)
+
 /** index = GamepadPref wire byte (0=Auto 1=Xbox360 2=DualSense 3=XboxOne 4=DualShock4). */
 val GAMEPAD_OPTIONS = listOf(
     "Automatic",

clients/android/app/src/main/kotlin/io/unom/punktfunk/SettingsScreen.kt

@@ -46,6 +46,7 @@ fun SettingsScreen(initial: Settings, onChange: (Settings) -> Unit, onBack: () -
     var s by remember { mutableStateOf(initial) }
     val context = LocalContext.current
     var showLicenses by remember { mutableStateOf(false) }
+    var showControllers by remember { mutableStateOf(false) }
     fun update(next: Settings) {
         s = next
         onChange(next)
@@ -62,6 +63,10 @@ fun SettingsScreen(initial: Settings, onChange: (Settings) -> Unit, onBack: () -
         LicensesScreen(onBack = { showLicenses = false })
         return
     }
+    if (showControllers) {
+        ControllersScreen(gamepadSetting = s.gamepad, onBack = { showControllers = false })
+        return
+    }
 
     Column(
         modifier = Modifier
@@ -95,6 +100,12 @@ fun SettingsScreen(initial: Settings, onChange: (Settings) -> Unit, onBack: () -
                 selected = s.bitrateKbps,
             ) { kbps -> update(s.copy(bitrateKbps = kbps)) }
 
+            SettingDropdown(
+                label = "Video codec",
+                options = CODEC_OPTIONS,
+                selected = s.codec,
+            ) { c -> update(s.copy(codec = c)) }
+
             // HDR is only meaningful on a panel that can present HDR10; on an SDR display the toggle
             // is disabled (and HDR is never advertised regardless) so the host doesn't send PQ the
             // panel would mis-tone-map. The capability is fixed for the device, so read it once.
@@ -124,6 +135,12 @@ fun SettingsScreen(initial: Settings, onChange: (Settings) -> Unit, onBack: () -
                 options = GAMEPAD_OPTIONS.mapIndexed { i, lbl -> i to lbl },
                 selected = s.gamepad,
             ) { g -> update(s.copy(gamepad = g)) }
+
+            ClickableRow(
+                title = "Connected controllers",
+                subtitle = "What the app detects, with a live input test",
+                onClick = { showControllers = true },
+            )
         }
 
         SettingsGroup("Audio") {
@@ -148,13 +165,21 @@ fun SettingsScreen(initial: Settings, onChange: (Settings) -> Unit, onBack: () -
             )
         }
 
-        SettingsGroup("Pointer") {
-            ToggleRow(
-                title = "Trackpad mode",
-                subtitle = "Relative cursor like a laptop touchpad — swipe to nudge, tap to click. " +
-                    "Off = the cursor jumps to your finger.",
-                checked = s.trackpadMode,
-                onCheckedChange = { on -> update(s.copy(trackpadMode = on)) },
+        SettingsGroup("Touch input") {
+            SettingDropdown(
+                label = "Touch input",
+                options = TOUCH_MODE_OPTIONS,
+                selected = s.touchMode,
+                onSelect = { mode -> update(s.copy(touchMode = mode)) },
+            )
+            Text(
+                "Trackpad: relative cursor like a laptop touchpad — tap to click, two-finger " +
+                    "tap right-clicks, two fingers scroll, tap-then-drag holds the button. " +
+                    "Direct pointer: the cursor jumps to your finger. Touch passthrough: real " +
+                    "multi-touch reaches the host, for apps that understand touch.",
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.padding(top = 6.dp),
             )
         }
 

clients/android/app/src/main/kotlin/io/unom/punktfunk/StatsOverlay.kt

@@ -0,0 +1,119 @@
+package io.unom.punktfunk
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import io.unom.punktfunk.kit.NativeBridge
+import kotlin.math.roundToInt
+
+/**
+ * The live stats overlay — the unified HUD (`design/stats-unification.md`, Android v1: headline is
+ * `capture→decoded`, tiled by `host+network` + `decode`). Reads the 18-double layout from
+ * [NativeBridge.nativeVideoStats]:
+ * `[fps, mbps, e2eP50Ms, e2eP95Ms, latValid, skew, w, h, hz, lost, bitDepth, colorPrimaries,
+ * colorTransfer, chromaFormatIdc, hostNetP50Ms, decodeP50Ms, hostP50Ms, netP50Ms]`. Indexes 10–13
+ * (present on a current native lib) describe the negotiated video feed and render as a
+ * codec/depth/colour/chroma line; 14/15 render as the stage equation — split into
+ * `host + network + decode` when the Phase-2 terms at 16/17 are nonzero (a current host sends
+ * per-AU 0xCF timings; an old host leaves them 0 and the combined `host+network` term stands);
+ * older layouts just omit those lines.
+ */
+@Composable
+internal fun StatsOverlay(s: DoubleArray, modifier: Modifier = Modifier) {
+    if (s.size < 10) return
+    val w = s[6].toInt()
+    val h = s[7].toInt()
+    val hz = s[8].toInt()
+    val latValid = s[4] != 0.0
+    val skew = s[5] != 0.0
+    val lost = s[9].toLong()
+    Column(
+        modifier = modifier
+            .background(Color.Black.copy(alpha = 0.45f), RoundedCornerShape(6.dp))
+            .padding(horizontal = 8.dp, vertical = 4.dp),
+    ) {
+        Text(
+            "$w×$h@$hz   ${s[0].roundToInt()} fps   ${"%.1f".format(s[1])} Mb/s",
+            color = Color.White,
+            fontFamily = FontFamily.Monospace,
+            fontSize = 12.sp,
+        )
+        videoFeedLine(s)?.let { feed ->
+            Text(
+                feed,
+                color = Color.White,
+                fontFamily = FontFamily.Monospace,
+                fontSize = 12.sp,
+            )
+        }
+        if (latValid) {
+            val tag = if (skew) "" else " (same-host clock)"
+            Text(
+                "end-to-end ${"%.1f".format(s[2])} ms p50 · ${"%.1f".format(s[3])} p95 · capture→decoded$tag",
+                color = Color.White,
+                fontFamily = FontFamily.Monospace,
+                fontSize = 12.sp,
+            )
+            if (s.size >= 16) {
+                // Phase-2 split (s[16]/s[17]): render `host + network` separately when the host
+                // reported its share this window; otherwise the combined term (old host / no
+                // matched 0xCF timing).
+                val equation = if (s.size >= 18 && s[16] > 0) {
+                    "= host ${"%.1f".format(s[16])} + network ${"%.1f".format(s[17])} + decode ${"%.1f".format(s[15])}"
+                } else {
+                    "= host+network ${"%.1f".format(s[14])} + decode ${"%.1f".format(s[15])}"
+                }
+                Text(
+                    equation,
+                    color = Color.White,
+                    fontFamily = FontFamily.Monospace,
+                    fontSize = 12.sp,
+                )
+            }
+        }
+        if (lost > 0) {
+            Text(
+                "lost $lost",
+                color = Color(0xFFFFB0B0),
+                fontFamily = FontFamily.Monospace,
+                fontSize = 12.sp,
+            )
+        }
+    }
+}
+
+/**
+ * Format the negotiated video-feed descriptor from the trailing four stats doubles
+ * `[bitDepth, colorPrimaries, colorTransfer, chromaFormatIdc]`, e.g.
+ * `HEVC · 10-bit · HDR (BT.2020 PQ) · 4:2:0`. Returns `null` on a pre-video-feed layout (< 14 doubles)
+ * so the overlay simply omits the line. The codes are CICP / H.273: transfer 16 = PQ, 18 = HLG (else
+ * SDR); primaries 9 = BT.2020, 1 = BT.709; chroma_format_idc 1 = 4:2:0, 2 = 4:2:2, 3 = 4:4:4. The
+ * Android decoder is always HEVC (`video/hevc`).
+ */
+private fun videoFeedLine(s: DoubleArray): String? {
+    if (s.size < 14) return null
+    val bitDepth = s[10].toInt()
+    val primaries = s[11].toInt()
+    val transfer = s[12].toInt()
+    val chromaIdc = s[13].toInt()
+    val depthLabel = if (bitDepth > 0) "$bitDepth-bit" else "8-bit"
+    val (dynamicRange, colorSpace) = when (transfer) {
+        16 -> "HDR" to "BT.2020 PQ"
+        18 -> "HDR" to "BT.2020 HLG"
+        else -> "SDR" to if (primaries == 9) "BT.2020" else "BT.709"
+    }
+    val chromaLabel = when (chromaIdc) {
+        3 -> "4:4:4"
+        2 -> "4:2:2"
+        else -> "4:2:0"
+    }
+    return "HEVC · $depthLabel · $dynamicRange ($colorSpace) · $chromaLabel"
+}

clients/android/app/src/main/kotlin/io/unom/punktfunk/StreamScreen.kt

@@ -7,15 +7,9 @@ import android.view.SurfaceHolder
 import android.view.SurfaceView
 import android.view.WindowManager
 import androidx.activity.compose.BackHandler
-import androidx.compose.foundation.background
-import androidx.compose.foundation.gestures.awaitEachGesture
-import androidx.compose.foundation.gestures.awaitFirstDown
 import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
@@ -25,12 +19,9 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
 import androidx.compose.ui.viewinterop.AndroidView
 import androidx.core.content.ContextCompat
 import androidx.core.view.WindowCompat
@@ -41,25 +32,6 @@ import io.unom.punktfunk.kit.GamepadFeedback
 import io.unom.punktfunk.kit.NativeBridge
 import java.util.concurrent.atomic.AtomicBoolean
 import kotlinx.coroutines.delay
-import kotlin.math.abs
-import kotlin.math.hypot
-import kotlin.math.roundToInt
-
-// Touch-gesture tuning (px / ms). TAP_SLOP: movement under this still counts as a tap, not a drag.
-// TAP_DRAG_MS: a new touch within this long after a tap starts a left-button drag. SCROLL_DIV: px of
-// two-finger pan per wheel notch (smaller = faster scroll).
-private const val TAP_SLOP = 12f
-private const val TAP_DRAG_MS = 250L
-private const val SCROLL_DIV = 4f
-
-// Trackpad-mode pointer ballistics (relative one-finger motion). POINTER_SENS: base finger-px →
-// host-px gain (~1:1, never twitchy). The rest is mild acceleration so a flick crosses the screen
-// while a slow drag stays precise: above ACCEL_SPEED_FLOOR px/ms the gain ramps by ACCEL_GAIN per
-// px/ms, capped at ACCEL_MAX (so a fast swipe can't fling the cursor uncontrollably).
-private const val POINTER_SENS = 1.3f
-private const val ACCEL_GAIN = 0.6f
-private const val ACCEL_SPEED_FLOOR = 0.3f
-private const val ACCEL_MAX = 3.0f
 
 @Composable
 fun StreamScreen(handle: Long, micEnabled: Boolean, onDisconnect: () -> Unit) {
@@ -76,19 +48,26 @@ fun StreamScreen(handle: Long, micEnabled: Boolean, onDisconnect: () -> Unit) {
         Manifest.permission.RECORD_AUDIO,
     ) == PackageManager.PERMISSION_GRANTED
 
-    // Live decode stats for the HUD. Poll once a second for the whole stream (cheap, and each call
-    // drains+resets the native window so it never grows unbounded even while the overlay is hidden);
-    // `showStats` only gates rendering. A 3-finger tap toggles it live; the default comes from Settings.
+    // Live decode stats for the HUD. `showStats` gates the whole pipeline: the native per-frame
+    // sampling (nativeSetVideoStatsEnabled — hidden HUD costs one atomic load per frame) AND the
+    // 1 s poll loop, which only runs while the overlay is visible. Enabling resets the native
+    // window, so re-showing never renders stale data. A 3-finger tap toggles it live; the default
+    // comes from Settings.
     val initialSettings = remember { SettingsStore(context).load() }
     var stats by remember { mutableStateOf<DoubleArray?>(null) }
     var showStats by remember { mutableStateOf(initialSettings.statsHudEnabled) }
     // Touch model is fixed per session (re-keys the gesture handler below if it ever changes).
-    val trackpad = initialSettings.trackpadMode
-    LaunchedEffect(handle) {
+    val touchMode = initialSettings.touchMode
+    LaunchedEffect(handle, showStats) {
+        NativeBridge.nativeSetVideoStatsEnabled(handle, showStats)
+        if (showStats) {
             while (true) {
                 delay(1000)
                 stats = NativeBridge.nativeVideoStats(handle)
             }
+        } else {
+            stats = null // drop the last snapshot so a re-show never flashes stale numbers
+        }
     }
 
     // One-shot teardown guard. Both the SurfaceView callback and DisposableEffect tear down on the
@@ -169,240 +148,19 @@ fun StreamScreen(handle: Long, micEnabled: Boolean, onDisconnect: () -> Unit) {
         if (showStats) {
             stats?.let { StatsOverlay(it, Modifier.align(Alignment.TopStart).padding(12.dp)) }
         }
-        // Touch → mouse. Two models, chosen by the Trackpad-mode setting:
-        //  • trackpad (default): the cursor STAYS where it is on touch-down and moves by the finger's
-        //    relative delta (MouseMove) with mild pointer acceleration — swipe to nudge, lift and
-        //    re-swipe to walk it across, tap to click where it is. This is what makes the cursor
-        //    reachable on a small screen.
-        //  • direct (opt-out): the cursor jumps to the finger and follows it (MouseMoveAbs,
-        //    host-normalized against the overlay size), the old "direct pointing" behaviour.
-        // Both share the same gesture vocabulary: tap = left click; two-finger tap = right click;
-        // two-finger drag = scroll; tap-then-press-and-drag = left-drag (text selection / moving
-        // windows); three-finger tap = toggle the stats HUD.
+        // Touch input per the Settings model: trackpad/direct-pointer mouse (the shared gesture
+        // vocabulary) or real multi-touch passthrough — see TouchInput.kt.
         Box(
-            Modifier.fillMaxSize().pointerInput(handle, trackpad) {
-                var lastTapUp = 0L
-                var lastTapX = 0f
-                var lastTapY = 0f
-                fun moveAbs(x: Float, y: Float) {
-                    val sw = size.width
-                    val sh = size.height
-                    if (sw <= 0 || sh <= 0) return
-                    NativeBridge.nativeSendPointerAbs(
+            Modifier.fillMaxSize().pointerInput(handle, touchMode) {
+                when (touchMode) {
+                    TouchMode.TOUCH -> streamTouchPassthrough(handle)
+                    else -> streamTouchInput(
                         handle,
-                        x.coerceIn(0f, (sw - 1).toFloat()).roundToInt(),
-                        y.coerceIn(0f, (sh - 1).toFloat()).roundToInt(),
-                        sw,
-                        sh,
+                        trackpad = touchMode == TouchMode.TRACKPAD,
+                        onToggleStats = { showStats = !showStats },
                     )
                 }
-                awaitEachGesture {
-                    val down = awaitFirstDown(requireUnconsumed = false)
-                    val startX = down.position.x
-                    val startY = down.position.y
-                    // A touch landing just after a quick tap nearby = tap-and-drag: hold the left
-                    // button for this whole gesture (laptop-trackpad convention).
-                    val isDrag = down.uptimeMillis - lastTapUp < TAP_DRAG_MS &&
-                        abs(startX - lastTapX) < TAP_SLOP && abs(startY - lastTapY) < TAP_SLOP
-                    lastTapUp = 0L // consume the arming either way
-                    // Direct mode jumps the cursor to the finger; trackpad mode leaves it put (the
-                    // whole point — you nudge it with swipes instead).
-                    if (!trackpad) moveAbs(startX, startY)
-                    if (isDrag) NativeBridge.nativeSendPointerButton(handle, 1, true)
-
-                    var moved = false
-                    var maxFingers = 1
-                    var scrolling = false
-                    var prevCx = startX
-                    var prevCy = startY
-                    var upTime = down.uptimeMillis
-                    // Trackpad relative-motion state: the tracked finger, its last position/time, and
-                    // the sub-pixel remainder so a slow drag isn't lost to Int truncation.
-                    var trackId = down.id
-                    var prevX = startX
-                    var prevY = startY
-                    var prevT = down.uptimeMillis
-                    var accX = 0f
-                    var accY = 0f
-
-                    while (true) {
-                        val ev = awaitPointerEvent()
-                        val pressed = ev.changes.filter { it.pressed }
-                        if (pressed.isEmpty()) {
-                            upTime = ev.changes.firstOrNull()?.uptimeMillis ?: upTime
-                            break
-                        }
-                        if (pressed.size > maxFingers) maxFingers = pressed.size
-
-                        if (pressed.size >= 2) {
-                            // Two fingers → scroll by the centroid delta; never move the cursor.
-                            val cx = (pressed.sumOf { it.position.x.toDouble() } / pressed.size).toFloat()
-                            val cy = (pressed.sumOf { it.position.y.toDouble() } / pressed.size).toFloat()
-                            if (!scrolling) {
-                                scrolling = true
-                                prevCx = cx
-                                prevCy = cy
-                            }
-                            val sy = ((prevCy - cy) / SCROLL_DIV).toInt() // finger up → wheel up
-                            val sx = ((cx - prevCx) / SCROLL_DIV).toInt()
-                            if (sy != 0) {
-                                NativeBridge.nativeSendScroll(handle, 0, sy * 120)
-                                prevCy = cy
-                                moved = true
-                            }
-                            if (sx != 0) {
-                                NativeBridge.nativeSendScroll(handle, 1, sx * 120)
-                                prevCx = cx
-                                moved = true
-                            }
-                        } else if (!scrolling) {
-                            // One finger (skipped once a gesture turned into a scroll, so dropping
-                            // back to one finger doesn't jerk the cursor).
-                            val p = pressed.firstOrNull { it.id == down.id } ?: pressed.first()
-                            if (abs(p.position.x - startX) > TAP_SLOP ||
-                                abs(p.position.y - startY) > TAP_SLOP
-                            ) {
-                                moved = true
-                            }
-                            if (trackpad) {
-                                // Relative: move by the finger delta × (sensitivity × acceleration),
-                                // carrying the sub-pixel remainder. Re-anchor (zero delta this frame)
-                                // if the tracked finger changed, so lifting one of several fingers
-                                // never jumps the cursor.
-                                if (p.id != trackId) {
-                                    trackId = p.id
-                                    prevX = p.position.x
-                                    prevY = p.position.y
-                                    prevT = p.uptimeMillis
-                                }
-                                val dx = p.position.x - prevX
-                                val dy = p.position.y - prevY
-                                val dt = (p.uptimeMillis - prevT).coerceAtLeast(1L)
-                                prevX = p.position.x
-                                prevY = p.position.y
-                                prevT = p.uptimeMillis
-                                val speed = hypot(dx, dy) / dt // finger px per ms
-                                val accel = (1f + ACCEL_GAIN * (speed - ACCEL_SPEED_FLOOR).coerceAtLeast(0f))
-                                    .coerceAtMost(ACCEL_MAX)
-                                accX += dx * POINTER_SENS * accel
-                                accY += dy * POINTER_SENS * accel
-                                val outX = accX.toInt() // truncates toward zero → remainder kept w/ sign
-                                val outY = accY.toInt()
-                                if (outX != 0 || outY != 0) {
-                                    NativeBridge.nativeSendPointerMove(handle, outX, outY)
-                                    accX -= outX
-                                    accY -= outY
-                                }
-                            } else {
-                                moveAbs(p.position.x, p.position.y) // direct: cursor follows the finger
-                            }
-                        }
-                        ev.changes.forEach { it.consume() }
-                    }
-
-                    if (isDrag) {
-                        NativeBridge.nativeSendPointerButton(handle, 1, false) // end the drag
-                    } else if (!moved) {
-                        when {
-                            maxFingers >= 3 -> showStats = !showStats // in-stream HUD toggle
-                            maxFingers == 2 -> { // two-finger tap → right click
-                                NativeBridge.nativeSendPointerButton(handle, 3, true)
-                                NativeBridge.nativeSendPointerButton(handle, 3, false)
-                            }
-                            else -> { // tap → left click (at the cursor's current spot), arm tap-drag
-                                NativeBridge.nativeSendPointerButton(handle, 1, true)
-                                NativeBridge.nativeSendPointerButton(handle, 1, false)
-                                lastTapUp = upTime
-                                lastTapX = startX
-                                lastTapY = startY
-                            }
-                        }
-                    }
-                }
             },
         )
     }
 }
-
-/**
- * The live stats overlay — mirrors the Apple client's HUD. Reads the 14-double layout from
- * [NativeBridge.nativeVideoStats]:
- * `[fps, mbps, latP50Ms, latP95Ms, latValid, skew, w, h, hz, dropped, bitDepth, colorPrimaries,
- * colorTransfer, chromaFormatIdc]`. The trailing four (present on a current native lib) describe the
- * negotiated video feed and render as a codec/depth/colour/chroma line; older layouts just omit it.
- */
-@Composable
-internal fun StatsOverlay(s: DoubleArray, modifier: Modifier = Modifier) {
-    if (s.size < 10) return
-    val w = s[6].toInt()
-    val h = s[7].toInt()
-    val hz = s[8].toInt()
-    val latValid = s[4] != 0.0
-    val skew = s[5] != 0.0
-    val dropped = s[9].toLong()
-    Column(
-        modifier = modifier
-            .background(Color.Black.copy(alpha = 0.45f), RoundedCornerShape(6.dp))
-            .padding(horizontal = 8.dp, vertical = 4.dp),
-    ) {
-        Text(
-            "$w×$h@$hz   ${s[0].roundToInt()} fps   ${"%.1f".format(s[1])} Mb/s",
-            color = Color.White,
-            fontFamily = FontFamily.Monospace,
-            fontSize = 12.sp,
-        )
-        videoFeedLine(s)?.let { feed ->
-            Text(
-                feed,
-                color = Color.White,
-                fontFamily = FontFamily.Monospace,
-                fontSize = 12.sp,
-            )
-        }
-        if (latValid) {
-            val tag = if (skew) "" else " (same-host)"
-            Text(
-                "capture→client ${"%.1f".format(s[2])}/${"%.1f".format(s[3])} ms p50/p95$tag",
-                color = Color.White,
-                fontFamily = FontFamily.Monospace,
-                fontSize = 12.sp,
-            )
-        }
-        if (dropped > 0) {
-            Text(
-                "dropped $dropped",
-                color = Color(0xFFFFB0B0),
-                fontFamily = FontFamily.Monospace,
-                fontSize = 12.sp,
-            )
-        }
-    }
-}
-
-/**
- * Format the negotiated video-feed descriptor from the trailing four stats doubles
- * `[bitDepth, colorPrimaries, colorTransfer, chromaFormatIdc]`, e.g.
- * `HEVC · 10-bit · HDR (BT.2020 PQ) · 4:2:0`. Returns `null` on a pre-video-feed layout (< 14 doubles)
- * so the overlay simply omits the line. The codes are CICP / H.273: transfer 16 = PQ, 18 = HLG (else
- * SDR); primaries 9 = BT.2020, 1 = BT.709; chroma_format_idc 1 = 4:2:0, 2 = 4:2:2, 3 = 4:4:4. The
- * Android decoder is always HEVC (`video/hevc`).
- */
-private fun videoFeedLine(s: DoubleArray): String? {
-    if (s.size < 14) return null
-    val bitDepth = s[10].toInt()
-    val primaries = s[11].toInt()
-    val transfer = s[12].toInt()
-    val chromaIdc = s[13].toInt()
-    val depthLabel = if (bitDepth > 0) "$bitDepth-bit" else "8-bit"
-    val (dynamicRange, colorSpace) = when (transfer) {
-        16 -> "HDR" to "BT.2020 PQ"
-        18 -> "HDR" to "BT.2020 HLG"
-        else -> "SDR" to if (primaries == 9) "BT.2020" else "BT.709"
-    }
-    val chromaLabel = when (chromaIdc) {
-        3 -> "4:4:4"
-        2 -> "4:2:2"
-        else -> "4:2:0"
-    }
-    return "HEVC · $depthLabel · $dynamicRange ($colorSpace) · $chromaLabel"
-}

clients/android/app/src/main/kotlin/io/unom/punktfunk/TouchInput.kt

@@ -0,0 +1,236 @@
+package io.unom.punktfunk
+
+import androidx.compose.foundation.gestures.awaitEachGesture
+import androidx.compose.foundation.gestures.awaitFirstDown
+import androidx.compose.ui.input.pointer.PointerId
+import androidx.compose.ui.input.pointer.PointerInputScope
+import androidx.compose.ui.input.pointer.changedToDownIgnoreConsumed
+import androidx.compose.ui.input.pointer.changedToUpIgnoreConsumed
+import androidx.compose.ui.input.pointer.positionChanged
+import io.unom.punktfunk.kit.NativeBridge
+import kotlin.math.abs
+import kotlin.math.hypot
+import kotlin.math.roundToInt
+
+// Touch-gesture tuning (px / ms). TAP_SLOP: movement under this still counts as a tap, not a drag.
+// TAP_DRAG_MS: a new touch within this long after a tap starts a left-button drag. SCROLL_DIV: px of
+// two-finger pan per wheel notch (smaller = faster scroll).
+private const val TAP_SLOP = 12f
+private const val TAP_DRAG_MS = 250L
+private const val SCROLL_DIV = 4f
+
+// Trackpad-mode pointer ballistics (relative one-finger motion). POINTER_SENS: base finger-px →
+// host-px gain (~1:1, never twitchy). The rest is mild acceleration so a flick crosses the screen
+// while a slow drag stays precise: above ACCEL_SPEED_FLOOR px/ms the gain ramps by ACCEL_GAIN per
+// px/ms, capped at ACCEL_MAX (so a fast swipe can't fling the cursor uncontrollably).
+private const val POINTER_SENS = 1.3f
+private const val ACCEL_GAIN = 0.6f
+private const val ACCEL_SPEED_FLOOR = 0.3f
+private const val ACCEL_MAX = 3.0f
+
+/**
+ * Touch → mouse, run inside the stream overlay's `pointerInput`. Two models, chosen by the
+ * Trackpad-mode setting:
+ *  * trackpad (default): the cursor STAYS where it is on touch-down and moves by the finger's
+ *    relative delta (MouseMove) with mild pointer acceleration — swipe to nudge, lift and
+ *    re-swipe to walk it across, tap to click where it is. This is what makes the cursor
+ *    reachable on a small screen.
+ *  * direct (opt-out): the cursor jumps to the finger and follows it (MouseMoveAbs,
+ *    host-normalized against the overlay size), the old "direct pointing" behaviour.
+ *
+ * Both share the same gesture vocabulary: tap = left click; two-finger tap = right click;
+ * two-finger drag = scroll; tap-then-press-and-drag = left-drag (text selection / moving
+ * windows); three-finger tap = [onToggleStats] (the stats HUD).
+ */
+/**
+ * Real multi-touch passthrough ([TouchMode.TOUCH]): every finger forwards as a host touchscreen
+ * contact (down/move/up with a stable per-finger id), with NO gesture interpretation — taps,
+ * drags and multi-finger input mean whatever the remote app decides. Coordinates are overlay
+ * pixels with the overlay size as the surface, exactly like the absolute-mouse path (the host
+ * normalizes and maps into the output). On teardown (stream leaves composition) every still-held
+ * contact is lifted so nothing stays stuck on the host.
+ */
+internal suspend fun PointerInputScope.streamTouchPassthrough(handle: Long) {
+    val ids = mutableMapOf<PointerId, Int>()
+    fun alloc(p: PointerId): Int {
+        var id = 0
+        while (ids.containsValue(id)) id++
+        ids[p] = id
+        return id
+    }
+    try {
+        awaitPointerEventScope {
+            while (true) {
+                val ev = awaitPointerEvent()
+                val sw = size.width
+                val sh = size.height
+                if (sw <= 0 || sh <= 0) continue
+                for (c in ev.changes) {
+                    val x = c.position.x.roundToInt().coerceIn(0, sw - 1)
+                    val y = c.position.y.roundToInt().coerceIn(0, sh - 1)
+                    when {
+                        c.changedToDownIgnoreConsumed() ->
+                            NativeBridge.nativeSendTouch(handle, alloc(c.id), 0, x, y, sw, sh)
+                        c.changedToUpIgnoreConsumed() ->
+                            ids.remove(c.id)?.let {
+                                NativeBridge.nativeSendTouch(handle, it, 2, 0, 0, sw, sh)
+                            }
+                        c.positionChanged() ->
+                            ids[c.id]?.let {
+                                NativeBridge.nativeSendTouch(handle, it, 1, x, y, sw, sh)
+                            }
+                    }
+                    c.consume()
+                }
+            }
+        }
+    } finally {
+        // Lift anything still down (composition/session teardown mid-touch).
+        ids.values.forEach { NativeBridge.nativeSendTouch(handle, it, 2, 0, 0, 1, 1) }
+    }
+}
+
+internal suspend fun PointerInputScope.streamTouchInput(
+    handle: Long,
+    trackpad: Boolean,
+    onToggleStats: () -> Unit,
+) {
+    var lastTapUp = 0L
+    var lastTapX = 0f
+    var lastTapY = 0f
+    fun moveAbs(x: Float, y: Float) {
+        val sw = size.width
+        val sh = size.height
+        if (sw <= 0 || sh <= 0) return
+        NativeBridge.nativeSendPointerAbs(
+            handle,
+            x.coerceIn(0f, (sw - 1).toFloat()).roundToInt(),
+            y.coerceIn(0f, (sh - 1).toFloat()).roundToInt(),
+            sw,
+            sh,
+        )
+    }
+    awaitEachGesture {
+        val down = awaitFirstDown(requireUnconsumed = false)
+        val startX = down.position.x
+        val startY = down.position.y
+        // A touch landing just after a quick tap nearby = tap-and-drag: hold the left
+        // button for this whole gesture (laptop-trackpad convention).
+        val isDrag = down.uptimeMillis - lastTapUp < TAP_DRAG_MS &&
+            abs(startX - lastTapX) < TAP_SLOP && abs(startY - lastTapY) < TAP_SLOP
+        lastTapUp = 0L // consume the arming either way
+        // Direct mode jumps the cursor to the finger; trackpad mode leaves it put (the
+        // whole point — you nudge it with swipes instead).
+        if (!trackpad) moveAbs(startX, startY)
+        if (isDrag) NativeBridge.nativeSendPointerButton(handle, 1, true)
+
+        var moved = false
+        var maxFingers = 1
+        var scrolling = false
+        var prevCx = startX
+        var prevCy = startY
+        var upTime = down.uptimeMillis
+        // Trackpad relative-motion state: the tracked finger, its last position/time, and
+        // the sub-pixel remainder so a slow drag isn't lost to Int truncation.
+        var trackId = down.id
+        var prevX = startX
+        var prevY = startY
+        var prevT = down.uptimeMillis
+        var accX = 0f
+        var accY = 0f
+
+        while (true) {
+            val ev = awaitPointerEvent()
+            val pressed = ev.changes.filter { it.pressed }
+            if (pressed.isEmpty()) {
+                upTime = ev.changes.firstOrNull()?.uptimeMillis ?: upTime
+                break
+            }
+            if (pressed.size > maxFingers) maxFingers = pressed.size
+
+            if (pressed.size >= 2) {
+                // Two fingers → scroll by the centroid delta; never move the cursor.
+                val cx = (pressed.sumOf { it.position.x.toDouble() } / pressed.size).toFloat()
+                val cy = (pressed.sumOf { it.position.y.toDouble() } / pressed.size).toFloat()
+                if (!scrolling) {
+                    scrolling = true
+                    prevCx = cx
+                    prevCy = cy
+                }
+                val sy = ((prevCy - cy) / SCROLL_DIV).toInt() // finger up → wheel up
+                val sx = ((cx - prevCx) / SCROLL_DIV).toInt()
+                if (sy != 0) {
+                    NativeBridge.nativeSendScroll(handle, 0, sy * 120)
+                    prevCy = cy
+                    moved = true
+                }
+                if (sx != 0) {
+                    NativeBridge.nativeSendScroll(handle, 1, sx * 120)
+                    prevCx = cx
+                    moved = true
+                }
+            } else if (!scrolling) {
+                // One finger (skipped once a gesture turned into a scroll, so dropping
+                // back to one finger doesn't jerk the cursor).
+                val p = pressed.firstOrNull { it.id == down.id } ?: pressed.first()
+                if (abs(p.position.x - startX) > TAP_SLOP ||
+                    abs(p.position.y - startY) > TAP_SLOP
+                ) {
+                    moved = true
+                }
+                if (trackpad) {
+                    // Relative: move by the finger delta × (sensitivity × acceleration),
+                    // carrying the sub-pixel remainder. Re-anchor (zero delta this frame)
+                    // if the tracked finger changed, so lifting one of several fingers
+                    // never jumps the cursor.
+                    if (p.id != trackId) {
+                        trackId = p.id
+                        prevX = p.position.x
+                        prevY = p.position.y
+                        prevT = p.uptimeMillis
+                    }
+                    val dx = p.position.x - prevX
+                    val dy = p.position.y - prevY
+                    val dt = (p.uptimeMillis - prevT).coerceAtLeast(1L)
+                    prevX = p.position.x
+                    prevY = p.position.y
+                    prevT = p.uptimeMillis
+                    val speed = hypot(dx, dy) / dt // finger px per ms
+                    val accel = (1f + ACCEL_GAIN * (speed - ACCEL_SPEED_FLOOR).coerceAtLeast(0f))
+                        .coerceAtMost(ACCEL_MAX)
+                    accX += dx * POINTER_SENS * accel
+                    accY += dy * POINTER_SENS * accel
+                    val outX = accX.toInt() // truncates toward zero → remainder kept w/ sign
+                    val outY = accY.toInt()
+                    if (outX != 0 || outY != 0) {
+                        NativeBridge.nativeSendPointerMove(handle, outX, outY)
+                        accX -= outX
+                        accY -= outY
+                    }
+                } else {
+                    moveAbs(p.position.x, p.position.y) // direct: cursor follows the finger
+                }
+            }
+            ev.changes.forEach { it.consume() }
+        }
+
+        if (isDrag) {
+            NativeBridge.nativeSendPointerButton(handle, 1, false) // end the drag
+        } else if (!moved) {
+            when {
+                maxFingers >= 3 -> onToggleStats() // in-stream HUD toggle
+                maxFingers == 2 -> { // two-finger tap → right click
+                    NativeBridge.nativeSendPointerButton(handle, 3, true)
+                    NativeBridge.nativeSendPointerButton(handle, 3, false)
+                }
+                else -> { // tap → left click (at the cursor's current spot), arm tap-drag
+                    NativeBridge.nativeSendPointerButton(handle, 1, true)
+                    NativeBridge.nativeSendPointerButton(handle, 1, false)
+                    lastTapUp = upTime
+                    lastTapX = startX
+                    lastTapY = startY
+                }
+            }
+        }
+    }
+}

clients/android/app/src/test/kotlin/io/unom/punktfunk/screenshots/ShotScenes.kt

@@ -27,6 +27,7 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import io.unom.punktfunk.BrandDark
 import io.unom.punktfunk.Settings
+import io.unom.punktfunk.TouchMode
 import io.unom.punktfunk.SettingsScreen
 import io.unom.punktfunk.StatsOverlay
 import io.unom.punktfunk.components.HostCard
@@ -109,7 +110,7 @@ internal fun SettingsScene() {
                 gamepad = 2,
                 micEnabled = true,
                 statsHudEnabled = true,
-                trackpadMode = true,
+                touchMode = TouchMode.TRACKPAD,
             ),
             onChange = {},
             onBack = {},

clients/android/ci/play-upload.py

@@ -37,13 +37,30 @@ def call(method, url, token=None, data=None, content_type=None, want_json=True):
         headers["Authorization"] = f"Bearer {token}"
     if content_type:
         headers["Content-Type"] = content_type
+    # Transient-fault retries: googleapis.com occasionally drops the TLS session ("EOF
+    # occurred in violation of protocol" — failed two release uploads on 2026-07-02) or
+    # answers 5xx. Retry those with backoff; 4xx raises immediately (a real API error).
+    # The edits API is transactional until commit, so re-sending any of these is safe.
+    last = None
+    for attempt in range(4):
+        if attempt:
+            delay = 3**attempt
+            print(f"transient Play API failure ({last}); retry {attempt}/3 in {delay}s")
+            time.sleep(delay)
         req = urllib.request.Request(url, data=data, method=method, headers=headers)
         try:
             with urllib.request.urlopen(req, timeout=300) as r:
                 body = r.read()
-    except urllib.error.HTTPError as e:
-        raise ApiError(e.code, method, url, e.read().decode("utf-8", "replace"))
             return json.loads(body) if (want_json and body) else body
+        except urllib.error.HTTPError as e:
+            if e.code >= 500:
+                last = f"HTTP {e.code}"
+                continue
+            raise ApiError(e.code, method, url, e.read().decode("utf-8", "replace"))
+        except urllib.error.URLError as e:
+            last = str(getattr(e, "reason", e))
+            continue
+    sys.exit(f"ERROR: {method} {url} still failing after retries: {last}")
 
 
 def load_sa():

clients/android/kit/src/main/kotlin/io/unom/punktfunk/kit/Gamepad.kt

@@ -98,20 +98,20 @@ object Gamepad {
         }
     }
 
-    /** First connected gamepad/joystick [InputDevice], or null when none is attached. */
-    fun firstPad(): InputDevice? {
-        for (id in InputDevice.getDeviceIds()) {
-            val d = InputDevice.getDevice(id) ?: continue
-            val s = d.sources
-            if (s and InputDevice.SOURCE_GAMEPAD == InputDevice.SOURCE_GAMEPAD ||
+    /** True when [dev]'s source classes include gamepad or joystick. */
+    fun isPad(dev: InputDevice?): Boolean {
+        val s = dev?.sources ?: return false
+        return s and InputDevice.SOURCE_GAMEPAD == InputDevice.SOURCE_GAMEPAD ||
             s and InputDevice.SOURCE_JOYSTICK == InputDevice.SOURCE_JOYSTICK
-            ) {
-                return d
-            }
-        }
-        return null
     }
 
+    /** All connected gamepad/joystick [InputDevice]s, in system enumeration order. */
+    fun pads(): List<InputDevice> =
+        InputDevice.getDeviceIds().toList().mapNotNull { InputDevice.getDevice(it) }.filter { isPad(it) }
+
+    /** First connected gamepad/joystick [InputDevice], or null when none is attached. */
+    fun firstPad(): InputDevice? = pads().firstOrNull()
+
     /**
      * The [GamepadPref] wire byte to send for the user's [setting] (the persisted gamepad index). A
      * non-Auto setting is passed through unchanged; "Automatic" ([PREF_AUTO]) resolves to a concrete

clients/android/kit/src/main/kotlin/io/unom/punktfunk/kit/Keymap.kt

@@ -3,13 +3,79 @@ package io.unom.punktfunk.kit
 import android.view.KeyEvent
 
 /**
- * Android `KEYCODE_*` → Windows Virtual-Key code (the punktfunk wire contract; the host maps VK →
- * evdev via `inject::vk_to_evdev`). The Android analogue of the Linux client's evdev→VK table
- * (`punktfunk-client-linux/src/keymap.rs`) and the Apple client's `hidToVK`. Positional/US-layout —
- * we forward the physical key, not the typed character. Unmapped keys → 0 (the Rust side drops them).
- * Extend this alongside `punktfunk-host/src/inject.rs::vk_to_evdev` (emit only VKs the host knows).
+ * Hardware key → Windows Virtual-Key code (the punktfunk wire contract: **US-positional** — we
+ * forward the physical key, not the typed character; the host maps VK → evdev via
+ * `inject::vk_to_evdev`). The Android analogue of the Linux client's evdev→VK table
+ * (`punktfunk-client-linux/src/keymap.rs`) and the Apple client's `hidToVK`.
+ *
+ * Prefer [toVk] with the full [KeyEvent]: it reads the raw evdev scancode first, because
+ * `KeyEvent.keyCode` is only positional under the stock US key layout — a user-selected physical
+ * keyboard layout (Settings → Physical keyboard) remaps keycodes semantically (AOSP's German .kcm
+ * carries `map key 21 Z` / `map key 44 Y`), which would apply the layout twice: once here, once on
+ * the host (the y↔z / ü-on-ö scramble). Unmapped keys → 0 (the Rust side drops them). Extend this
+ * alongside `punktfunk-host/src/inject.rs::vk_to_evdev` (emit only VKs the host knows).
  */
 object Keymap {
+    /**
+     * Positional wire VK for a hardware key event: the evdev scancode table first (immune to the
+     * selected physical-keyboard layout), falling back to the keycode table for events without a
+     * scancode (soft keyboards, synthetic events) and for everything outside the typing area
+     * (layout-invariant there, incl. gamepad buttons whose scancodes lie outside the table).
+     */
+    fun toVk(event: KeyEvent): Int {
+        val positional = evdevToVk(event.scanCode)
+        return if (positional != 0) positional else toVk(event.keyCode)
+    }
+
+    /**
+     * Linux evdev keycode (`KeyEvent.scanCode`) → US-positional VK for the layout-**variant**
+     * typing area — the same 48-key table as the Linux client's `evdev_to_vk` and the hosts'
+     * fixed tables. Everything else → 0 (the keycode path is already positional for those).
+     */
+    fun evdevToVk(scan: Int): Int = when (scan) {
+        in 2..10 -> 0x31 + (scan - 2) // KEY_1..KEY_9
+        11 -> 0x30 // KEY_0
+        12 -> 0xBD // KEY_MINUS       -_  VK_OEM_MINUS (DE: ß)
+        13 -> 0xBB // KEY_EQUAL       =+  VK_OEM_PLUS
+        16 -> 0x51 // Q
+        17 -> 0x57 // W
+        18 -> 0x45 // E
+        19 -> 0x52 // R
+        20 -> 0x54 // T
+        21 -> 0x59 // KEY_Y — US-Y position (QWERTZ: the Z key)
+        22 -> 0x55 // U
+        23 -> 0x49 // I
+        24 -> 0x4F // O
+        25 -> 0x50 // P
+        26 -> 0xDB // KEY_LEFTBRACE   [{  VK_OEM_4 (DE: ü)
+        27 -> 0xDD // KEY_RIGHTBRACE  ]}  VK_OEM_6
+        30 -> 0x41 // A
+        31 -> 0x53 // S
+        32 -> 0x44 // D
+        33 -> 0x46 // F
+        34 -> 0x47 // G
+        35 -> 0x48 // H
+        36 -> 0x4A // J
+        37 -> 0x4B // K
+        38 -> 0x4C // L
+        39 -> 0xBA // KEY_SEMICOLON   ;:  VK_OEM_1 (DE: ö)
+        40 -> 0xDE // KEY_APOSTROPHE  '"  VK_OEM_7 (DE: ä)
+        41 -> 0xC0 // KEY_GRAVE       `~  VK_OEM_3 (DE: ^)
+        43 -> 0xDC // KEY_BACKSLASH   \|  VK_OEM_5
+        44 -> 0x5A // KEY_Z — US-Z position (QWERTZ: the Y key)
+        45 -> 0x58 // X
+        46 -> 0x43 // C
+        47 -> 0x56 // V
+        48 -> 0x42 // B
+        49 -> 0x4E // N
+        50 -> 0x4D // M
+        51 -> 0xBC // KEY_COMMA       ,<  VK_OEM_COMMA
+        52 -> 0xBE // KEY_DOT         .>  VK_OEM_PERIOD
+        53 -> 0xBF // KEY_SLASH       /?  VK_OEM_2
+        86 -> 0xE2 // KEY_102ND       <>| VK_OEM_102 (ISO)
+        else -> 0
+    }
+
     fun toVk(keyCode: Int): Int = when (keyCode) {
         in KeyEvent.KEYCODE_A..KeyEvent.KEYCODE_Z -> 0x41 + (keyCode - KeyEvent.KEYCODE_A) // A–Z
         in KeyEvent.KEYCODE_0..KeyEvent.KEYCODE_9 -> 0x30 + (keyCode - KeyEvent.KEYCODE_0) // 0–9 row

clients/android/kit/src/main/kotlin/io/unom/punktfunk/kit/NativeBridge.kt

@@ -48,6 +48,8 @@ object NativeBridge {
         gamepadPref: Int,
         hdrEnabled: Boolean,
         audioChannels: Int,
+        /** Preferred video codec as a `quic::CODEC_*` bit (`0` = auto). Soft — the host falls back. */
+        preferredCodec: Int,
         timeoutMs: Int,
     ): Long
 
@@ -103,15 +105,28 @@ object NativeBridge {
 
     /**
      * Drain ~1 s of live decode stats for the on-stream HUD, or `null` when no decode thread runs.
-     * Returns 14 doubles:
-     * `[fps, mbps, latP50Ms, latP95Ms, latValid, skewCorrected, width, height, refreshHz, framesDropped,
-     * bitDepth, colorPrimaries, colorTransfer, chromaFormatIdc]`
-     * (the two flags are 1.0/0.0; the trailing four describe the negotiated video feed — bit depth
-     * 8/10, CICP primaries/transfer, and the HEVC chroma_format_idc 1=4:2:0 / 3=4:4:4). Poll ~1 Hz;
-     * each call resets the measurement window.
+     * Returns 18 doubles (unified stats spec, `design/stats-unification.md`):
+     * `[fps, mbps, e2eP50Ms, e2eP95Ms, latValid, skewCorrected, width, height, refreshHz, framesLost,
+     * bitDepth, colorPrimaries, colorTransfer, chromaFormatIdc, hostNetP50Ms, decodeP50Ms, hostP50Ms,
+     * netP50Ms]`
+     * (the two flags are 1.0/0.0; indexes 2/3 are the end-to-end capture→decoded headline; 10–13
+     * describe the negotiated video feed — bit depth 8/10, CICP primaries/transfer, and the HEVC
+     * chroma_format_idc 1=4:2:0 / 3=4:4:4; 14/15 are the stage p50s tiling the headline —
+     * `host+network` = capture→received, `decode` = received→decoded; 16/17 split the
+     * `host+network` term via the host's per-AU 0xCF timings — `host` = the host's capture→sent,
+     * `network` = the remainder — both 0.0 when no timing matched this window, i.e. an old host).
+     * Poll ~1 Hz; each call resets the measurement window.
      */
     external fun nativeVideoStats(handle: Long): DoubleArray?
 
+    /**
+     * Gate per-frame stats sampling on the HUD being visible: while disabled the decode thread
+     * skips the per-AU clock read + lock, so toggle this with the overlay (and only poll
+     * [nativeVideoStats] while it's on). Enabling resets the measurement window — no stale data.
+     * Sticky for the session (survives video stop/start). No-op on `0`.
+     */
+    external fun nativeSetVideoStatsEnabled(handle: Long, enabled: Boolean)
+
     /**
      * Start host→client audio: Opus decode → jitter ring → AAudio (LowLatency), all in Rust. No-op
      * if already started. Best-effort — a failure leaves video streaming.
@@ -149,6 +164,22 @@ object NativeBridge {
     /** One scroll step. axis: 0=vertical 1=horizontal. delta: signed, 120-scaled, +=up/right. */
     external fun nativeSendScroll(handle: Long, axis: Int, delta: Int)
 
+    /**
+     * One REAL touchscreen transition (the touch-passthrough input mode). [kind]: 0=down 1=move
+     * 2=up. [id] distinguishes fingers and is reusable after up; coordinates are pixels on the
+     * client's touch surface — the host rescales against [surfaceWidth]×[surfaceHeight] and
+     * injects a real touch contact. On up only [id] matters.
+     */
+    external fun nativeSendTouch(
+        handle: Long,
+        id: Int,
+        kind: Int,
+        x: Int,
+        y: Int,
+        surfaceWidth: Int,
+        surfaceHeight: Int,
+    )
+
     /** One key transition. vk: Windows VK (0 = dropped by Rust). mods: VK modifier mask (0 for now). */
     external fun nativeSendKey(handle: Long, vk: Int, down: Boolean, mods: Int)
 

clients/android/kit/src/test/kotlin/io/unom/punktfunk/kit/KeymapTest.kt

@@ -0,0 +1,43 @@
+package io.unom.punktfunk.kit
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+/**
+ * Pure JVM test of the positional scancode table (`Keymap.evdevToVk`) — no Android runtime types
+ * (the `KeyEvent` constants in the keycode table are compile-time-inlined ints). Run:
+ * `./gradlew :kit:testDebugUnitTest`.
+ */
+class KeymapTest {
+    /**
+     * The German-scramble regression pins: the physical keys a QWERTZ board labels Z/Y/ö/ü/ä/ß
+     * must leave this client as their US-position VKs, regardless of the user-selected physical
+     * keyboard layout (which remaps `keyCode`, not `scanCode`).
+     */
+    @Test
+    fun positionalPinsForTheQwertzScramble() {
+        assertEquals(0x59, Keymap.evdevToVk(21)) // KEY_Y (QWERTZ: Z key) → VK_Y
+        assertEquals(0x5A, Keymap.evdevToVk(44)) // KEY_Z (QWERTZ: Y key) → VK_Z
+        assertEquals(0xBA, Keymap.evdevToVk(39)) // KEY_SEMICOLON (QWERTZ: ö) → VK_OEM_1
+        assertEquals(0xDB, Keymap.evdevToVk(26)) // KEY_LEFTBRACE (QWERTZ: ü) → VK_OEM_4
+        assertEquals(0xDE, Keymap.evdevToVk(40)) // KEY_APOSTROPHE (QWERTZ: ä) → VK_OEM_7
+        assertEquals(0xBD, Keymap.evdevToVk(12)) // KEY_MINUS (QWERTZ: ß) → VK_OEM_MINUS
+    }
+
+    /**
+     * Exactly the 48 typing-area keys are covered (10 digits + 26 letters + 12 OEM) with unique
+     * VKs; everything else (nav, F-row, modifiers, gamepad buttons at 0x100+) falls through to
+     * the keycode table.
+     */
+    @Test
+    fun tableCoversTheTypingAreaBijectively() {
+        val mapped = (0..0x200).mapNotNull { sc ->
+            Keymap.evdevToVk(sc).takeIf { it != 0 }?.let { sc to it }
+        }
+        assertEquals(48, mapped.size)
+        assertEquals(48, mapped.map { it.second }.toSet().size)
+        assertEquals(0, Keymap.evdevToVk(1)) // KEY_ESC — layout-invariant, keycode path
+        assertEquals(0, Keymap.evdevToVk(59)) // KEY_F1
+        assertEquals(0, Keymap.evdevToVk(304)) // BTN_SOUTH — gamepad, never a typing key
+    }
+}

clients/android/native/Cargo.toml

@@ -27,8 +27,8 @@ log = "0.4"
 mdns-sd = "0.20"
 
 # Android-only deps. Gated so `cargo build --workspace` on the Linux/macOS dev boxes + CI still
-# compiles this crate (as a host cdylib) — the Android-framework glue (logging now; AMediaCodec via
-# `ndk` and Oboe/Opus audio later) is only pulled in for the real `*-linux-android` targets.
+# compiles this crate (as a host cdylib) — the Android-framework glue (logging, AMediaCodec + AAudio
+# via `ndk`, the Opus codec) is only pulled in for the real `*-linux-android` targets.
 [target.'cfg(target_os = "android")'.dependencies]
 android_logger = "0.14"
 # NDK bindings. "media" = AMediaCodec/ANativeWindow (video); "audio" = AAudio (audio playback).

clients/android/native/src/adpf.rs

@@ -0,0 +1,137 @@
+//! Android Adaptive Performance Framework (ADPF) — CPU performance hints for the decode thread.
+//!
+//! ADPF lets a latency-critical app tell the platform "these threads run a repeating workload with
+//! this per-cycle deadline, and here's how long they *actually* took." The kernel's CPU governor
+//! (on Qualcomm Snapdragon in particular — its ADPF backend is among the most responsive) then keeps
+//! those threads on the fast cores at high clocks instead of migrating them to a little core or
+//! down-clocking between frames. For a stream client the win is on the in-process hot path we
+//! control — the `pf-decode` feed/drain/present loop — *not* the hardware codec itself (that decodes
+//! in the mediacodec service, a separate process we can't hint); keeping our loop from being
+//! scheduled late directly trims the jitter between "AU received" and "buffer released to the
+//! Surface." It complements the codec-side `operating-rate`/`priority` hints, which push the codec's
+//! own clocks.
+//!
+//! The `APerformanceHint_*` API arrived in NDK **API level 33**. minSdk is 31, so we CANNOT link the
+//! symbols directly: a `libpunktfunk_android.so` carrying an unresolved
+//! `APerformanceHint_createSession` import fails to load on API 31/32 devices
+//! (`System.loadLibrary` throws) even if the code path is never taken. Instead we resolve the
+//! entry points from `libandroid.so` with `dlsym` at runtime — absent on < 33 ⇒
+//! [`HintSession::create`] returns `None` and the decode loop simply runs without hints.
+
+use std::ffi::c_void;
+use std::os::raw::c_int;
+
+// `APerformanceHint_*` function-pointer types. The manager/session handles are opaque, so we treat
+// them as `*mut c_void`.
+type GetManagerFn = unsafe extern "C" fn() -> *mut c_void;
+type CreateSessionFn = unsafe extern "C" fn(*mut c_void, *const i32, usize, i64) -> *mut c_void;
+type ReportFn = unsafe extern "C" fn(*mut c_void, i64) -> c_int;
+type UpdateTargetFn = unsafe extern "C" fn(*mut c_void, i64) -> c_int;
+type CloseFn = unsafe extern "C" fn(*mut c_void);
+
+/// The entry points we use, resolved once from `libandroid.so`, plus the process-wide manager.
+struct Api {
+    create_session: CreateSessionFn,
+    report: ReportFn,
+    update_target: UpdateTargetFn,
+    close: CloseFn,
+    manager: *mut c_void,
+}
+
+/// Resolve the ADPF entry points + the process manager, or `None` on API < 33 (symbols absent) or if
+/// the manager is unavailable.
+fn resolve_api() -> Option<Api> {
+    // SAFETY: `dlopen` of an always-present system library with a NUL-terminated name; it returns
+    // null on failure (checked below). `libandroid.so` is already mapped into every app process, so
+    // this only bumps its refcount — we intentionally never `dlclose` (process-lifetime handle).
+    let lib = unsafe { libc::dlopen(c"libandroid.so".as_ptr(), libc::RTLD_NOW) };
+    if lib.is_null() {
+        return None;
+    }
+    // SAFETY: `dlsym` on the valid handle above with NUL-terminated symbol names; each returns null
+    // when the symbol is absent (device API < 33), which we check before transmuting the non-null
+    // pointer to its fn-pointer type (layout-compatible; a resolved symbol is a valid code address).
+    unsafe {
+        let get_manager = libc::dlsym(lib, c"APerformanceHint_getManager".as_ptr());
+        let create_session = libc::dlsym(lib, c"APerformanceHint_createSession".as_ptr());
+        let report = libc::dlsym(lib, c"APerformanceHint_reportActualWorkDuration".as_ptr());
+        let update_target = libc::dlsym(lib, c"APerformanceHint_updateTargetWorkDuration".as_ptr());
+        let close = libc::dlsym(lib, c"APerformanceHint_closeSession".as_ptr());
+        if get_manager.is_null()
+            || create_session.is_null()
+            || report.is_null()
+            || update_target.is_null()
+            || close.is_null()
+        {
+            return None; // device API < 33 — no ADPF
+        }
+        let get_manager = std::mem::transmute::<*mut c_void, GetManagerFn>(get_manager);
+        let manager = get_manager();
+        if manager.is_null() {
+            return None;
+        }
+        Some(Api {
+            create_session: std::mem::transmute::<*mut c_void, CreateSessionFn>(create_session),
+            report: std::mem::transmute::<*mut c_void, ReportFn>(report),
+            update_target: std::mem::transmute::<*mut c_void, UpdateTargetFn>(update_target),
+            close: std::mem::transmute::<*mut c_void, CloseFn>(close),
+            manager,
+        })
+    }
+}
+
+/// A live ADPF hint session bound to a set of thread ids. Dropping it closes the session. Holds raw
+/// handles, so it is `!Send`/`!Sync` — created and used only on the `pf-decode` thread.
+pub struct HintSession {
+    api: Api,
+    session: *mut c_void,
+}
+
+impl HintSession {
+    /// Open a session hinting `tids` with an initial per-frame target of `target_ns` nanoseconds.
+    /// `None` when ADPF is unavailable (device API < 33) or the platform declines — the caller then
+    /// runs unhinted (a no-op, not an error).
+    pub fn create(target_ns: i64, tids: &[i32]) -> Option<Self> {
+        if target_ns <= 0 || tids.is_empty() {
+            return None;
+        }
+        let api = resolve_api()?;
+        // SAFETY: `api.manager` is the live process manager returned above; `tids` is a valid slice
+        // of `len` i32s that `createSession` copies; it returns null on failure (checked).
+        let session =
+            unsafe { (api.create_session)(api.manager, tids.as_ptr(), tids.len(), target_ns) };
+        if session.is_null() {
+            return None;
+        }
+        Some(Self { api, session })
+    }
+
+    /// Report the wall-clock time the hinted thread spent producing the last displayed frame. When
+    /// it exceeds the session target the governor boosts the cores running the thread; when it
+    /// stays under, clocks may relax. No-op on a non-positive duration (the API rejects it).
+    pub fn report_actual(&self, actual_ns: i64) {
+        if actual_ns <= 0 {
+            return;
+        }
+        // SAFETY: `self.session` is a live session for `self`'s lifetime.
+        unsafe { (self.api.report)(self.session, actual_ns) };
+    }
+
+    /// Update the per-frame target (e.g. after a mid-session refresh-rate change). Unused today —
+    /// the decode thread restarts on renegotiation — but kept for that path.
+    #[allow(dead_code)]
+    pub fn update_target(&self, target_ns: i64) {
+        if target_ns <= 0 {
+            return;
+        }
+        // SAFETY: `self.session` is a live session for `self`'s lifetime.
+        unsafe { (self.api.update_target)(self.session, target_ns) };
+    }
+}
+
+impl Drop for HintSession {
+    fn drop(&mut self) {
+        // SAFETY: `self.session` was created by `createSession` and is closed exactly once, here.
+        unsafe { (self.api.close)(self.session) };
+    }
+}

clients/android/native/src/audio.rs

@@ -129,21 +129,32 @@ impl AudioPlayback {
         let jitter_headroom = JITTER_HEADROOM_MS * ms;
         let hard_cap_max = HARD_CAP_MS * ms;
         let counters = Arc::new(Counters::default());
+
+        // One open attempt at a given sharing mode. Everything the realtime callback captures
+        // (channels, ring, prime state) is rebuilt per attempt — `open_stream` consumes the builder
+        // AND the callback, so nothing survives a failed try to reuse.
+        let try_open = |sharing: AudioSharingMode| -> ndk::audio::Result<(
+            AudioStream,
+            SyncSender<Vec<f32>>,
+            Receiver<Vec<f32>>,
+        )> {
             let (tx, rx) = sync_channel::<Vec<f32>>(RING_CHUNKS);
-        // Recycle free-list: drained PCM buffers go BACK to the decode thread to be refilled, so the
-        // realtime callback never frees heap (Android's Scudo allocator has unbounded free() tail
-        // latency — a free on the audio thread is an XRun = a click) and the decode thread rarely
-        // allocates. Same depth as the data channel.
+            // Recycle free-list: drained PCM buffers go BACK to the decode thread to be refilled, so
+            // the realtime callback never frees heap (Android's Scudo allocator has unbounded free()
+            // tail latency — a free on the audio thread is an XRun = a click) and the decode thread
+            // rarely allocates. Same depth as the data channel.
             let (free_tx, free_rx) = sync_channel::<Vec<f32>>(RING_CHUNKS);
 
-        // Realtime consumer state, owned by the callback (FnMut) — no lock: AAudio calls it from a
-        // single high-priority thread, and the decode thread only touches `tx`/`free_rx`.
+            // Realtime consumer state, owned by the callback (FnMut) — no lock: AAudio calls it from
+            // a single high-priority thread, and the decode thread only touches `tx`/`free_rx`.
             let cb_counters = counters.clone();
-        // Pre-reserve the ring so `extend` never reallocates on the realtime thread. Worst transient
-        // before the trim below = the hard cap plus one full channel of 5 ms (480-f32) frames — the
-        // punktfunk protocol always sends 5 ms Opus frames (host `audio_thread`); a larger frame
-        // would force a one-time realloc, asserted (not silently corrupted) in `decode_loop`.
-        let mut ring: VecDeque<f32> = VecDeque::with_capacity(hard_cap_max + RING_CHUNKS * 5 * ms);
+            // Pre-reserve the ring so `extend` never reallocates on the realtime thread. Worst
+            // transient before the trim below = the hard cap plus one full channel of 5 ms (480-f32)
+            // frames — the punktfunk protocol always sends 5 ms Opus frames (host `audio_thread`); a
+            // larger frame would force a one-time realloc, asserted (not silently corrupted) in
+            // `decode_loop`.
+            let mut ring: VecDeque<f32> =
+                VecDeque::with_capacity(hard_cap_max + RING_CHUNKS * 5 * ms);
             let mut primed = false;
             let mut empties: u32 = 0; // consecutive empty callbacks (de-prime hysteresis)
             let mut cb_count: u32 = 0; // callbacks since open (throttles the XRun grow check)
@@ -152,16 +163,18 @@ impl AudioPlayback {
                 let want = num_frames as usize * channels;
                 // SAFETY: AAudio provides `num_frames * channel_count` F32 slots at `data`.
                 let out = unsafe { std::slice::from_raw_parts_mut(data as *mut f32, want) };
-            // Drain decoded chunks into the ring WITHOUT freeing on the RT thread: `drain(..)` empties
-            // each Vec but keeps its capacity, then the empty buffer is handed back for reuse. The
-            // only RT-thread free is the rare case where the recycle channel is momentarily full.
+                // Drain decoded chunks into the ring WITHOUT freeing on the RT thread: `drain(..)`
+                // empties each Vec but keeps its capacity, then the empty buffer is handed back for
+                // reuse. The only RT-thread free is the rare case where the recycle channel is
+                // momentarily full.
                 while let Ok(mut chunk) = rx.try_recv() {
                     ring.extend(chunk.drain(..));
                     let _ = free_tx.try_send(chunk);
                 }
-            // Jitter buffer: prime to ~40 ms (prime_floor) before playing and after a sustained drain;
-            // drop-oldest only above a wide ~120 ms band. Decoupled from the AAudio burst `want` (tiny
-            // on the LowLatency MMAP path) so the depth doesn't collapse to a single quantum.
+                // Jitter buffer: prime to ~40 ms (prime_floor) before playing and after a sustained
+                // drain; drop-oldest only above a wide ~120 ms band. Decoupled from the AAudio burst
+                // `want` (tiny on the LowLatency MMAP path) so the depth doesn't collapse to a single
+                // quantum.
                 let target = (3 * want).clamp(prime_floor, prime_ceil);
                 let hard_cap = (target + jitter_headroom).min(hard_cap_max);
                 while ring.len() > hard_cap {
@@ -181,9 +194,9 @@ impl AudioPlayback {
                     out.fill(0.0);
                     cb_counters.underruns.fetch_add(1, Ordering::Relaxed);
                 }
-            // Re-prime only after a RUN of empty callbacks, not a single transient one — otherwise
-            // every momentary drain costs a fresh 40 ms silence (the old behaviour, self-inflicted
-            // crackle on any jitter spike).
+                // Re-prime only after a RUN of empty callbacks, not a single transient one —
+                // otherwise every momentary drain costs a fresh 40 ms silence (the old behaviour,
+                // self-inflicted crackle on any jitter spike).
                 if ring.is_empty() {
                     empties += 1;
                     if empties >= DEPRIME_AFTER_CALLBACKS {
@@ -195,9 +208,10 @@ impl AudioPlayback {
                 cb_counters
                     .ring_depth
                     .store(ring.len() as u64, Ordering::Relaxed);
-            // Google's AAudio anti-glitch technique: when the device reports new XRuns, grow the HW
-            // buffer by one burst (up to capacity). getXRunCount + setBufferSizeInFrames are both
-            // callback-safe / non-blocking, and set clamps to capacity so it self-limits. Throttled.
+                // Google's AAudio anti-glitch technique: when the device reports new XRuns, grow the
+                // HW buffer by one burst (up to capacity). getXRunCount + setBufferSizeInFrames are
+                // both callback-safe / non-blocking, and set clamps to capacity so it self-limits.
+                // Throttled.
                 cb_count = cb_count.wrapping_add(1);
                 if cb_count % XRUN_CHECK_EVERY == 0 {
                     let xr = s.x_run_count();
@@ -212,9 +226,7 @@ impl AudioPlayback {
                 AudioCallbackResult::Continue
             };
 
-        let stream = AudioStreamBuilder::new()
-            .map_err(|e| log::error!("audio: AudioStreamBuilder::new: {e}"))
-            .ok()?
+            let stream = AudioStreamBuilder::new()?
                 .direction(AudioDirection::Output)
                 .sample_rate(SAMPLE_RATE)
                 // The wire order (FL FR FC LFE RL RR SL SR) is the standard AAudio/Android channel
@@ -224,14 +236,33 @@ impl AudioPlayback {
                 .channel_count(channels as i32)
                 .format(AudioFormat::PCM_Float)
                 .performance_mode(AudioPerformanceMode::LowLatency)
-            .sharing_mode(AudioSharingMode::Shared)
+                .sharing_mode(sharing)
                 .data_callback(Box::new(callback))
                 .error_callback(Box::new(|_s, e| {
                     log::warn!("audio: AAudio error (device reroute/disconnect?): {e:?}");
                 }))
-            .open_stream()
-            .map_err(|e| log::error!("audio: open_stream: {e}"))
-            .ok()?;
+                .open_stream()?;
+            Ok((stream, tx, free_rx))
+        };
+
+        // Exclusive first — MMAP-exclusive is AAudio's lowest-latency path (once proven on-device it
+        // may also allow lowering the jitter-ring depths above; those stay put pending crackle
+        // testing) — and fall back to Shared when the device refuses (no MMAP, output claimed, …).
+        // The started-log below prints the mode the device actually GRANTED (`share=`): AAudio may
+        // still resolve an Exclusive request to Shared.
+        let (stream, tx, free_rx) = match try_open(AudioSharingMode::Exclusive) {
+            Ok(opened) => opened,
+            Err(e) => {
+                log::info!("audio: Exclusive open failed ({e}) — retrying Shared");
+                match try_open(AudioSharingMode::Shared) {
+                    Ok(opened) => opened,
+                    Err(e) => {
+                        log::error!("audio: open_stream: {e}");
+                        return None;
+                    }
+                }
+            }
+        };
 
         if let Err(e) = stream.request_start() {
             log::error!("audio: request_start: {e}");
@@ -293,6 +324,10 @@ fn decode_loop(
     counters: Arc<Counters>,
     channels: usize,
 ) {
+    // Fold this Opus→AAudio thread into the client's hot-thread set so the ADPF session the decode
+    // thread opens also keeps audio decode on a fast core (registered before the video pump's first
+    // frame arrives, so it's captured when that session is created). No-op below API 33.
+    client.register_hot_thread();
     // Interleaved f32 samples per millisecond at this layout — the ring's 5 ms reserve check below.
     let ms = (SAMPLE_RATE as usize / 1000) * channels;
     // Opus decode scratch: worst-case 120 ms frame (5760 samples/ch) × channels.

clients/android/native/src/decode.rs

@@ -9,15 +9,27 @@
 use ndk::data_space::DataSpace;
 use ndk::media::media_codec::{
     DequeuedInputBufferResult, DequeuedOutputBufferInfoResult, MediaCodec, MediaCodecDirection,
+    OutputBuffer,
 };
 use ndk::media::media_format::MediaFormat;
 use ndk::native_window::{FrameRateCompatibility, NativeWindow};
 use punktfunk_core::client::NativeClient;
 use punktfunk_core::error::PunktfunkError;
+use punktfunk_core::session::Frame;
+use std::collections::VecDeque;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::Arc;
 use std::time::{Duration, Instant};
 
+/// Cap on the pts→received-timestamp map below: MediaCodec holds only a handful of frames in
+/// flight, so anything beyond this is stale (codec flushed / HUD toggled) and gets evicted.
+const IN_FLIGHT_CAP: usize = 64;
+
+/// Cap on received AUs awaiting their 0xCF host timing (Phase 2 host/network split): the timing
+/// datagram trails its AU by at most the wire, so a match lands within a frame or two — anything
+/// this deep is a lost datagram (or an old host that never sends any) and gets evicted.
+const PENDING_SPLIT_CAP: usize = 256;
+
 /// The decode loop. Runs on the `pf-decode` thread until `shutdown` is set or the session closes.
 pub fn run(
     client: Arc<NativeClient>,
@@ -27,16 +39,23 @@ pub fn run(
 ) {
     boost_thread_priority();
     let mode = client.mode();
-    let codec = match MediaCodec::from_decoder_type("video/hevc") {
+    // The MediaCodec MIME for the codec the host resolved (`Welcome.codec`): HEVC or H.264. AMediaCodec
+    // needs no out-of-band extradata — the in-band VPS/SPS/PPS on every IDR configure it either way.
+    let mime = match client.codec {
+        punktfunk_core::quic::CODEC_H264 => "video/avc",
+        _ => "video/hevc",
+    };
+    let codec = match MediaCodec::from_decoder_type(mime) {
         Some(c) => c,
         None => {
-            log::error!("decode: no HEVC decoder on this device");
+            log::error!("decode: no {mime} decoder on this device");
             return;
         }
     };
+    log::info!("decode: codec mime = {mime}");
 
     let mut format = MediaFormat::new();
-    format.set_str("mime", "video/hevc");
+    format.set_str("mime", mime);
     format.set_i32("width", mode.width as i32);
     format.set_i32("height", mode.height as i32);
     // Generous input buffer so a large keyframe AU is never truncated.
@@ -46,11 +65,21 @@ pub fn run(
     );
     // Ask for the low-latency decode path where the decoder supports it (no reordering buffer).
     format.set_i32("low-latency", 1);
+    // Best-effort vendor twin of the standard key: older Qualcomm decoders only honor their own
+    // extension. Unknown keys are ignored by other vendors' codecs, so this is safe to set blind.
+    format.set_i32("vendor.qti-ext-dec-low-latency.enable", 1);
     // Advisory low-latency hints (KEY_PRIORITY / KEY_OPERATING_RATE), ignored where unsupported:
     // realtime priority + the target frame rate, so vendor decoders (e.g. Qualcomm) run at full
     // clocks instead of a power-saving cadence that adds dequeue latency.
     format.set_i32("priority", 0); // 0 = realtime
-    format.set_i32("operating-rate", mode.refresh_hz as i32);
+                                   // Operating rate = the codec's clock hint. Setting it to the display rate merely asks the
+                                   // decoder to *sustain* that cadence — a Qualcomm decoder can meet 60/120 fps at a power-saving
+                                   // clock that adds a millisecond-plus of decode latency per frame. Setting it to the AOSP
+                                   // "unbounded" sentinel (Short.MAX) instead asks the decoder to run each frame at max clocks and
+                                   // finish ASAP, minimising per-frame decode latency — the right trade for a real-time stream
+                                   // (costs power/heat; the dial to lower if a device thermally throttles over a long session).
+                                   // Ignored where unsupported.
+    format.set_i32("operating-rate", i16::MAX as i32); // 32767 = "as fast as possible"
 
     // HDR static metadata (ST.2086 mastering + content light level): when an HDR session was
     // negotiated, set KEY_HDR_STATIC_INFO so the display tone-maps from the source's real grade.
@@ -93,19 +122,59 @@ pub fn run(
         );
     }
 
+    // ADPF: hint the platform that the whole video pipeline — this pf-decode feed/drain/present
+    // loop, the core's data-plane pump (UDP receive + FEC reassembly), and the audio thread — runs a
+    // per-frame real-time workload, so the CPU governor keeps those threads on fast cores at high
+    // clocks instead of down-clocking between frames or parking them on a little core. Snapdragon's
+    // ADPF backend responds well to this. We register this thread now but create the session lazily
+    // on the first presented frame: by then the pump + audio threads have registered their ids too,
+    // and ADPF `createSession` rejects a set with any not-yet-live/dead tid. No-op below API 33.
+    let frame_period_ns = if mode.refresh_hz > 0 {
+        1_000_000_000i64 / mode.refresh_hz as i64
+    } else {
+        0
+    };
+    client.register_hot_thread(); // this decode thread → the pipeline's hot-thread set
+    let mut hint: Option<crate::adpf::HintSession> = None;
+    let mut hint_tried = false;
+    // Accumulates the loop's productive (feed+drain) time between displayed frames; reported to ADPF
+    // once per rendered frame against the frame-period target.
+    let mut work_accum_ns: i64 = 0;
+
     let mut fed: u64 = 0;
     let mut rendered: u64 = 0;
+    let mut discarded: u64 = 0;
+    // The AU waiting for a free codec input buffer. `feed` is non-blocking; on transient input
+    // pressure the AU stays parked here instead of being dropped (a drop forces a keyframe
+    // round-trip) and we only pop the next one once it's queued.
+    let mut pending: Option<Frame> = None;
     // Loss recovery: watch the host→client unrecoverable-drop count and ask for an IDR when it
     // climbs.
     let mut last_dropped = client.frames_dropped();
     let mut last_kf_req: Option<Instant> = None;
-    // Capture→client-receipt latency uses the negotiated host-minus-client clock offset (0 if the
-    // host didn't answer the skew handshake — then the HUD flags it "same-host").
+    // Skew-corrected latency stats (spec: design/stats-unification.md) use the negotiated
+    // host-minus-client clock offset (0 if the host didn't answer the skew handshake — then the
+    // HUD flags it "(same-host clock)").
     let clock_offset = client.clock_offset_ns;
+    // HUD stage split: receipt timestamps keyed by the pts we queue into the codec, so the decoded
+    // point (output-buffer dequeue — MediaCodec round-trips presentationTimeUs) can be paired back
+    // to its receipt for the `decode` stage. Only fed while the HUD is visible.
+    let mut in_flight: VecDeque<(u64, i128)> = VecDeque::new();
+    // Phase-2 host/network split (design/stats-unification.md): received AUs awaiting their 0xCF
+    // host timing, as (pts_ns, capture→received µs). The timings are drained non-blockingly right
+    // where receipts are recorded and matched by pts; `network = hostnet − host` (saturating).
+    // Only fed while the HUD is visible; an old host never sends a 0xCF, so entries just age out.
+    let mut pending_split: VecDeque<(u64, u64)> = VecDeque::new();
     // The dataspace we've signalled on the Surface so far (None = default/SDR). Set reactively once
     // the decoder reports an HDR stream (see `drain`); avoids re-applying every format event.
     let mut applied_ds: Option<DataSpace> = None;
+    // One thread feeds AND drains: the NDK AMediaCodec wrapper isn't documented thread-safe for
+    // cross-thread feed/drain, so instead of splitting threads the loop decouples the two — input
+    // dequeue is non-blocking (never stalls presentation of already-decoded frames) and the only
+    // blocking wait is a short output dequeue while input is backed up (decoder progress is exactly
+    // what frees the next input buffer).
     while !shutdown.load(Ordering::Relaxed) {
+        if pending.is_none() {
             match client.next_frame(Duration::from_millis(5)) {
                 Ok(frame) => {
                     if fed == 0 {
@@ -116,18 +185,111 @@ pub fn run(
                             &p[..p.len().min(6)]
                         );
                     }
-                fed += 1;
-                // HUD stat: capture→client-receipt latency = client_now + (host−client) − capture_pts.
-                let lat_ns = now_realtime_ns() + clock_offset as i128 - frame.pts_ns as i128;
-                let lat_us =
-                    (lat_ns > 0 && lat_ns < 10_000_000_000).then_some((lat_ns / 1000) as u64);
-                stats.note(frame.data.len(), lat_us, clock_offset != 0);
-                feed(&codec, &frame.data, frame.pts_ns / 1000);
+                    // HUD stat, `received` point: host+network = client_now + (host−client) −
+                    // capture_pts. Gated on the HUD being visible — `enabled` first so the hidden
+                    // steady state skips the wall-clock read and the lock entirely. The receipt
+                    // stamp is also parked in `in_flight` (keyed by the pts the codec will echo on
+                    // the output buffer) for the decoded-point pairing in `drain`.
+                    if stats.enabled() {
+                        let received_ns = now_realtime_ns();
+                        let lat_ns = received_ns + clock_offset as i128 - frame.pts_ns as i128;
+                        let lat_us = (lat_ns > 0 && lat_ns < 10_000_000_000)
+                            .then_some((lat_ns / 1000) as u64);
+                        stats.note_received(frame.data.len(), lat_us, clock_offset != 0);
+                        in_flight.push_back((frame.pts_ns / 1000, received_ns));
+                        if in_flight.len() > IN_FLIGHT_CAP {
+                            in_flight.pop_front(); // stale — codec never echoed it back
+                        }
+                        // Phase-2 split: park this AU's capture→received sample, then match any
+                        // 0xCF host timings that have arrived — host = the host's own
+                        // capture→sent, network = our capture→received minus it (per-frame
+                        // tiling; saturating in case of clock jitter).
+                        if let Some(hostnet_us) = lat_us {
+                            pending_split.push_back((frame.pts_ns, hostnet_us));
+                            if pending_split.len() > PENDING_SPLIT_CAP {
+                                pending_split.pop_front(); // 0xCF lost / old host — evict
+                            }
+                        }
+                        while let Ok(t) = client.next_host_timing(Duration::ZERO) {
+                            if let Some(i) = pending_split.iter().position(|&(p, _)| p == t.pts_ns)
+                            {
+                                let (_, hostnet_us) = pending_split.remove(i).unwrap();
+                                stats.note_host_split(
+                                    t.host_us as u64,
+                                    hostnet_us.saturating_sub(t.host_us as u64),
+                                );
+                            }
+                        }
+                    }
+                    pending = Some(frame);
                 }
                 Err(PunktfunkError::NoFrame) => {} // timeout — still drain output below
                 Err(_) => break,                   // session closed
             }
-        rendered += drain(&codec, &window, &mut applied_ds);
+        }
+        // Time the productive work (feed + drain) only — the `next_frame` poll wait above is idle
+        // and excluded, so ADPF sees this thread's real per-frame CPU cost, not the poll timeout.
+        let work_t0 = Instant::now();
+        if let Some(frame) = pending.take() {
+            if feed(&codec, &frame.data, frame.pts_ns / 1000) {
+                fed += 1;
+                if fed % 300 == 0 {
+                    log::info!("decode: fed={fed} rendered={rendered} discarded={discarded}");
+                }
+            } else {
+                // No input buffer free — transient back-pressure. Keep the AU and let `drain` block
+                // briefly below; a released output buffer is what recycles an input slot.
+                pending = Some(frame);
+            }
+        }
+        // Drain every iteration. When input is blocked, wait ~2 ms on output so the loop rides
+        // decoder progress instead of busy-spinning against a full input queue.
+        let wait = if pending.is_some() {
+            Duration::from_millis(2)
+        } else {
+            Duration::ZERO
+        };
+        let (r, d) = drain(
+            &codec,
+            &window,
+            &mut applied_ds,
+            wait,
+            &stats,
+            &mut in_flight,
+            clock_offset,
+        );
+        rendered += r;
+        discarded += d;
+
+        // ADPF: attribute this iteration's feed+drain time to the frame being produced, and report
+        // the accumulated per-frame work once one is actually presented (r > 0). Under back-pressure
+        // the short output-dequeue wait is included in the tally — for a latency-first client,
+        // biasing the governor toward "boost" is the desired behaviour. Cheap when `hint` is None
+        // (one `Instant` diff, no report).
+        work_accum_ns += work_t0.elapsed().as_nanos() as i64;
+        if r > 0 {
+            if !hint_tried {
+                // First presented frame: the pump + audio threads have registered their ids by now.
+                // Build one ADPF session over the whole pipeline's thread set (empty below API 33,
+                // or where the platform declines → `None`, and the loop runs unhinted).
+                hint_tried = true;
+                let tids = client.hot_thread_ids();
+                hint = crate::adpf::HintSession::create(frame_period_ns, &tids);
+                log::info!(
+                    "decode: ADPF hint session {} — {} hot thread(s), target {frame_period_ns} ns",
+                    if hint.is_some() {
+                        "active"
+                    } else {
+                        "unavailable"
+                    },
+                    tids.len(),
+                );
+            }
+            if let Some(h) = &hint {
+                h.report_actual(work_accum_ns);
+            }
+            work_accum_ns = 0;
+        }
 
         // Loss recovery: under infinite GOP the only recovery keyframe is one we request. The
         // reassembler drops unrecoverable AUs (frames_dropped); the decoder then conceals the
@@ -145,14 +307,10 @@ pub fn run(
                 log::debug!("decode: requested keyframe (loss recovery, dropped={dropped})");
             }
         }
-
-        if fed > 0 && fed % 300 == 0 {
-            log::info!("decode: fed={fed} rendered={rendered}");
-        }
     }
 
     let _ = codec.stop();
-    log::info!("decode: stopped (fed={fed} rendered={rendered})");
+    log::info!("decode: stopped (fed={fed} rendered={rendered} discarded={discarded})");
 }
 
 /// Wall-clock now in nanoseconds (CLOCK_REALTIME basis), to compare against the host-stamped
@@ -182,9 +340,12 @@ fn boost_thread_priority() {
     }
 }
 
-/// Copy one access unit into a codec input buffer and queue it.
-fn feed(codec: &MediaCodec, au: &[u8], pts_us: u64) {
-    match codec.dequeue_input_buffer(Duration::from_millis(10)) {
+/// Try to copy one access unit into a codec input buffer and queue it, without blocking. Returns
+/// `false` only on `TryAgainLater` (no input buffer free) — the caller keeps the AU pending and
+/// retries; a hard dequeue/queue error counts as consumed (retrying can't salvage the AU, and
+/// parking it forever would wedge the loop on a broken codec).
+fn feed(codec: &MediaCodec, au: &[u8], pts_us: u64) -> bool {
+    match codec.dequeue_input_buffer(Duration::ZERO) {
         Ok(DequeuedInputBufferResult::Buffer(mut buf)) => {
             let n = {
                 let dst = buf.buffer_mut();
@@ -196,41 +357,74 @@ fn feed(codec: &MediaCodec, au: &[u8], pts_us: u64) {
                         dst.len()
                     );
                 }
-                for (slot, &b) in dst.iter_mut().zip(&au[..n]) {
-                    slot.write(b);
+                // SAFETY: `au` and `dst` are distinct allocations (wire AU vs. codec buffer), both
+                // valid for `n` bytes; `MaybeUninit<u8>` is layout-identical to `u8`, so the cast
+                // write initializes exactly `dst[..n]`.
+                unsafe {
+                    std::ptr::copy_nonoverlapping(au.as_ptr(), dst.as_mut_ptr().cast::<u8>(), n);
                 }
                 n
             };
             if let Err(e) = codec.queue_input_buffer(buf, 0, n, pts_us, 0) {
                 log::warn!("decode: queue_input_buffer: {e}");
             }
+            true
         }
-        Ok(DequeuedInputBufferResult::TryAgainLater) => {
-            // No input buffer free right now; the AU is dropped (FEC/keyframes recover).
+        Ok(DequeuedInputBufferResult::TryAgainLater) => false, // caller keeps the AU pending
+        Err(e) => {
+            log::warn!("decode: dequeue_input_buffer: {e}");
+            true
         }
-        Err(e) => log::warn!("decode: dequeue_input_buffer: {e}"),
     }
 }
 
-/// Release any ready output buffers to the surface (render = true), latency-first. Returns the
-/// number of frames presented. Also reacts to `OutputFormatChanged` to signal HDR on the Surface.
-fn drain(codec: &MediaCodec, window: &NativeWindow, applied_ds: &mut Option<DataSpace>) -> u64 {
-    let mut n = 0;
+/// Dequeue every ready output buffer and present only the NEWEST (render = true), discarding the
+/// rest (render = false) — when decode falls behind, a back-to-back burst of stale frames on glass
+/// is worse than skipping straight to the freshest one (the Apple client's 1-slot newest-ready
+/// ring, ported). `first_wait` is the timeout for the first dequeue only: zero normally, ~2 ms when
+/// the caller's input is blocked so the loop waits on decoder progress instead of busy-spinning.
+/// Returns `(rendered, discarded)`. Also reacts to `OutputFormatChanged` (which can interleave
+/// between buffers — handled without losing the held buffer) to signal HDR on the Surface.
+///
+/// Each dequeued buffer is also the HUD's `decoded` measurement point (rendered or not — the frame
+/// finished decoding either way): end-to-end = decoded + clock_offset − capture pts, and the
+/// `decode` stage pairs the buffer's echoed presentationTimeUs back to the receipt stamp in
+/// `in_flight` (single-clock local difference, no skew involved).
+fn drain(
+    codec: &MediaCodec,
+    window: &NativeWindow,
+    applied_ds: &mut Option<DataSpace>,
+    first_wait: Duration,
+    stats: &crate::stats::VideoStats,
+    in_flight: &mut VecDeque<(u64, i128)>,
+    clock_offset: i64,
+) -> (u64, u64) {
+    let mut held = None; // newest ready buffer so far, presented after the loop
+    let mut discarded: u64 = 0;
+    let mut wait = first_wait;
     loop {
-        match codec.dequeue_output_buffer(Duration::from_millis(0)) {
+        match codec.dequeue_output_buffer(wait) {
             Ok(DequeuedOutputBufferInfoResult::Buffer(buf)) => {
-                if let Err(e) = codec.release_output_buffer(buf, true) {
-                    log::warn!("decode: release_output_buffer: {e}");
-                    break;
+                wait = Duration::ZERO; // only the first dequeue may block
+                if stats.enabled() {
+                    note_decoded(stats, in_flight, clock_offset, &buf);
+                }
+                if let Some(stale) = held.replace(buf) {
+                    // A newer frame is ready — drop the held one without rendering.
+                    if let Err(e) = codec.release_output_buffer(stale, false) {
+                        log::warn!("decode: release_output_buffer(discard): {e}");
+                    }
+                    discarded += 1;
                 }
-                n += 1;
             }
             Ok(DequeuedOutputBufferInfoResult::OutputFormatChanged) => {
                 // The decoder has parsed the SPS and now reports the stream's real colour signalling
                 // (the AMediaCodec analogue of VideoToolbox's format description on the Apple client).
                 // If it's HDR (BT.2020 PQ/HLG), tell the Surface so the compositor/display switch to
                 // HDR; SDR streams leave the default dataspace alone. The decoder itself picks a
-                // Main10 path from the SPS — no profile override needed. Keep looping (buffers follow).
+                // Main10 path from the SPS — no profile override needed. Keep looping (buffers
+                // follow, and any held buffer stays held across this event).
+                wait = Duration::ZERO;
                 if let Some(ds) = hdr_dataspace(codec) {
                     if *applied_ds != Some(ds) {
                         match window.set_buffers_data_space(ds) {
@@ -245,7 +439,7 @@ fn drain(codec: &MediaCodec, window: &NativeWindow, applied_ds: &mut Option<Data
                     }
                 }
             }
-            // TryAgainLater / OutputBuffersChanged — nothing to render now.
+            // TryAgainLater / OutputBuffersChanged — nothing more to dequeue now.
             Ok(_) => break,
             Err(e) => {
                 log::warn!("decode: dequeue_output_buffer: {e}");
@@ -253,7 +447,49 @@ fn drain(codec: &MediaCodec, window: &NativeWindow, applied_ds: &mut Option<Data
             }
         }
     }
-    n
+    // Present the newest ready frame, if any.
+    let mut rendered = 0;
+    if let Some(buf) = held {
+        match codec.release_output_buffer(buf, true) {
+            Ok(()) => rendered = 1,
+            Err(e) => log::warn!("decode: release_output_buffer: {e}"),
+        }
+    }
+    (rendered, discarded)
+}
+
+/// HUD `decoded` point for one dequeued output buffer: build the end-to-end (capture→decoded,
+/// skew-corrected, clamped to (0, 10 s)) and `decode` (received→decoded, single-clock local, ≥ 0)
+/// samples and hand them to [`crate::stats::VideoStats::note_decoded`]. The codec echoes the input
+/// `presentationTimeUs` on the output buffer, which keys the receipt stamp in `in_flight`; entries
+/// older than the echoed pts are evicted (decode order == input order here — low-latency, no
+/// B-frames — so anything before it was dropped inside the codec or stamped before a flush).
+fn note_decoded(
+    stats: &crate::stats::VideoStats,
+    in_flight: &mut VecDeque<(u64, i128)>,
+    clock_offset: i64,
+    buf: &OutputBuffer<'_>,
+) {
+    let pts_us = buf.info().presentation_time_us().max(0) as u64;
+    let decoded_ns = now_realtime_ns();
+    // Pair the echoed pts back to its receipt stamp, evicting stale (older) entries as we go.
+    let mut received_ns = None;
+    while let Some(&(p, r)) = in_flight.front() {
+        if p > pts_us {
+            break; // future frame — leave it for its own output buffer
+        }
+        in_flight.pop_front();
+        if p == pts_us {
+            received_ns = Some(r);
+            break;
+        }
+    }
+    // pts_us is the truncated frame.pts_ns/1000 we queued, so ×1000 re-approximates capture time
+    // to < 1 µs — negligible against the ms-scale figures shown.
+    let e2e_ns = decoded_ns + clock_offset as i128 - pts_us as i128 * 1000;
+    let e2e_us = (e2e_ns > 0 && e2e_ns < 10_000_000_000).then_some((e2e_ns / 1000) as u64);
+    let decode_us = received_ns.map(|r| ((decoded_ns - r).max(0) / 1000) as u64);
+    stats.note_decoded(e2e_us, decode_us);
 }
 
 /// Map the decoder's reported output colour to a BT.2020 HDR dataspace, or `None` for SDR. The

clients/android/native/src/lib.rs

@@ -16,15 +16,17 @@
 //! Wi-Fi `MulticastLock` + permission UX, Keystore identity).
 //!
 //! JNI symbols map to `io.unom.punktfunk.kit.NativeBridge` in the `:kit` Gradle module
-//! (`clients/android`). The current surface is the scaffold's native-link proof
-//! (`abiVersion`/`coreVersion`) plus the session handle lifecycle in [`session`]; the per-plane
-//! pumps (video → AMediaCodec, audio → Oboe), input, audio, pairing and mode renegotiation are
-//! the next milestone (see the TODOs in [`session`]).
+//! (`clients/android`). The surface: the native-link proof (`abiVersion`/`coreVersion`), mDNS host
+//! discovery ([`discovery`]), and the session lifecycle in [`session`] — connect/pair + the trust
+//! surface, the per-plane pumps (video → AMediaCodec, audio ↔ AAudio, mic uplink), input, and
+//! rumble/HID feedback ([`feedback`]). Mode renegotiation is still TODO (see [`session`]).
 
 use jni::objects::JObject;
 use jni::sys::jint;
 use jni::JNIEnv;
 
+#[cfg(target_os = "android")]
+mod adpf;
 #[cfg(target_os = "android")]
 mod audio;
 #[cfg(target_os = "android")]

clients/android/native/src/mic.rs

@@ -1,9 +1,12 @@
 //! Android microphone uplink (android-only): capture mic PCM via AAudio (LowLatency **input**),
 //! Opus-encode 20 ms stereo frames, and push them to the host over the connector's mic plane
 //! (`send_mic` → 0xCB datagram). The mirror of [`crate::audio`] in reverse: AAudio's realtime input
-//! callback hands captured interleaved f32 to a channel; a worker thread we own does the Opus encode
-//! + send (encoding is too heavy for the realtime callback, exactly as decode is on the playback
-//! side). Format matches the host decoder + the Linux client: 48 kHz **stereo**, 20 ms, Opus VOIP.
+//! callback hands captured interleaved f32 to a channel; a worker thread we own does the Opus
+//! encode + send (encoding is too heavy for the realtime callback, exactly as decode is on the
+//! playback side). Like the playback path, the realtime callback is allocation-free: captured
+//! bursts are copied into pre-allocated buffers from a recycle free-list (pool empty = drop the
+//! chunk, never allocate on the capture thread). Format matches the host decoder + the Linux
+//! client: 48 kHz **stereo**, 20 ms, Opus VOIP.
 
 use ndk::audio::{
     AudioCallbackResult, AudioDirection, AudioFormat, AudioPerformanceMode, AudioSharingMode,
@@ -13,7 +16,7 @@ use punktfunk_core::client::NativeClient;
 use std::collections::VecDeque;
 use std::ffi::c_void;
 use std::sync::atomic::{AtomicBool, AtomicU64, Ordering};
-use std::sync::mpsc::{sync_channel, Receiver, RecvTimeoutError, TrySendError};
+use std::sync::mpsc::{sync_channel, Receiver, RecvTimeoutError, SyncSender, TrySendError};
 use std::sync::Arc;
 use std::time::{Duration, SystemTime, UNIX_EPOCH};
 
@@ -23,6 +26,10 @@ const SAMPLE_RATE: i32 = 48_000;
 const FRAME_SAMPLES: usize = 960;
 /// Captured-chunk hand-off depth (each ~ one burst); drops on overflow (best-effort uplink).
 const RING_CHUNKS: usize = 64;
+/// Free-list buffer capacity, in interleaved f32 samples: comfortably above a LowLatency input
+/// burst (typically ≤ ~480 frames). A device with larger bursts costs each buffer a one-time grow
+/// on the capture thread, after which the steady state is allocation-free again.
+const CHUNK_CAP_SAMPLES: usize = 1920; // 20 ms stereo
 /// Opus VOIP target bitrate (speech; tunable).
 const MIC_BITRATE: i32 = 64_000;
 
@@ -38,56 +45,109 @@ impl MicCapture {
     /// forwards captured PCM to a channel, then spawn the Opus encode + uplink thread. `None` on
     /// failure (the caller leaves the rest of the session streaming).
     pub fn start(client: Arc<NativeClient>) -> Option<MicCapture> {
-        let (tx, rx) = sync_channel::<Vec<f32>>(RING_CHUNKS);
         let captured = Arc::new(AtomicU64::new(0));
+        // Chunks discarded on the capture thread (free-list empty / encoder lagging); logged
+        // throttled from the encode worker.
+        let dropped = Arc::new(AtomicU64::new(0));
+
+        // One open attempt at a given sharing mode (same pattern as [`crate::audio`]: `open_stream`
+        // consumes the builder AND the callback, so each try rebuilds the channels it captures).
+        let try_open = |sharing: AudioSharingMode| -> ndk::audio::Result<(
+            AudioStream,
+            Receiver<Vec<f32>>,
+            SyncSender<Vec<f32>>,
+        )> {
+            let (tx, rx) = sync_channel::<Vec<f32>>(RING_CHUNKS);
+            // Recycle free-list, mirroring the playback path: the realtime capture callback must
+            // not touch the allocator (Android's Scudo has unbounded malloc/free tail latency — an
+            // allocation here is a missed burst), so it pops a pre-allocated buffer, copies the
+            // burst in and sends it; the encode worker returns drained buffers. Pool empty = DROP
+            // the chunk (counted) rather than allocate.
+            let (free_tx, free_rx) = sync_channel::<Vec<f32>>(RING_CHUNKS);
+            for _ in 0..RING_CHUNKS {
+                let _ = free_tx.try_send(Vec::with_capacity(CHUNK_CAP_SAMPLES));
+            }
             let cb_captured = captured.clone();
+            let cb_dropped = dropped.clone();
+            let cb_free_tx = free_tx.clone(); // returns the buffer when the data channel is full
 
             let callback = move |_s: &AudioStream, data: *mut c_void, num_frames: i32| {
                 let n = num_frames as usize * CHANNELS;
-            // SAFETY: for an input stream AAudio provides `num_frames * channel_count` captured F32
-            // samples at `data` (read-only for us).
+                // SAFETY: for an input stream AAudio provides `num_frames * channel_count` captured
+                // F32 samples at `data` (read-only for us).
                 let inp = unsafe { std::slice::from_raw_parts(data as *const f32, n) };
-            match tx.try_send(inp.to_vec()) {
-                Ok(()) | Err(TrySendError::Full(_)) => {} // drop-newest if the encoder lags
+                cb_captured.fetch_add(num_frames as u64, Ordering::Relaxed);
+                match free_rx.try_recv() {
+                    Ok(mut buf) => {
+                        buf.clear();
+                        buf.extend_from_slice(inp); // retained capacity — no realloc past the first
+                        match tx.try_send(buf) {
+                            Ok(()) => {}
+                            Err(TrySendError::Full(buf)) => {
+                                // Encoder lagging: drop the chunk, hand the buffer straight back.
+                                let _ = cb_free_tx.try_send(buf);
+                                cb_dropped.fetch_add(1, Ordering::Relaxed);
+                            }
                             Err(TrySendError::Disconnected(_)) => return AudioCallbackResult::Stop,
                         }
-            cb_captured.fetch_add(num_frames as u64, Ordering::Relaxed);
+                    }
+                    // Pool empty (every buffer in flight): drop, never allocate on this thread.
+                    Err(_) => {
+                        cb_dropped.fetch_add(1, Ordering::Relaxed);
+                    }
+                }
                 AudioCallbackResult::Continue
             };
 
-        let stream = AudioStreamBuilder::new()
-            .map_err(|e| log::error!("mic: AudioStreamBuilder::new: {e}"))
-            .ok()?
+            let stream = AudioStreamBuilder::new()?
                 .direction(AudioDirection::Input)
                 .sample_rate(SAMPLE_RATE)
                 .channel_count(CHANNELS as i32)
                 .format(AudioFormat::PCM_Float)
                 .performance_mode(AudioPerformanceMode::LowLatency)
-            .sharing_mode(AudioSharingMode::Shared)
+                .sharing_mode(sharing)
                 .data_callback(Box::new(callback))
                 .error_callback(Box::new(|_s, e| {
                     log::warn!("mic: AAudio error (device reroute/disconnect?): {e:?}");
                 }))
-            .open_stream()
-            .map_err(|e| log::error!("mic: open_stream (RECORD_AUDIO granted?): {e}"))
-            .ok()?;
+                .open_stream()?;
+            Ok((stream, rx, free_tx))
+        };
+
+        // Exclusive first — MMAP-exclusive is AAudio's lowest-latency path — falling back to Shared
+        // when the device refuses (no MMAP, mic claimed, …). The started-log below prints the mode
+        // the device actually GRANTED (`share=`).
+        let (stream, rx, free_tx) = match try_open(AudioSharingMode::Exclusive) {
+            Ok(opened) => opened,
+            Err(e) => {
+                log::info!("mic: Exclusive open failed ({e}) — retrying Shared");
+                match try_open(AudioSharingMode::Shared) {
+                    Ok(opened) => opened,
+                    Err(e) => {
+                        log::error!("mic: open_stream (RECORD_AUDIO granted?): {e}");
+                        return None;
+                    }
+                }
+            }
+        };
 
         if let Err(e) = stream.request_start() {
             log::error!("mic: request_start: {e}");
             return None;
         }
         log::info!(
-            "mic: AAudio input started rate={} ch={} fmt={:?}",
+            "mic: AAudio input started rate={} ch={} fmt={:?} share={:?}",
             stream.sample_rate(),
             stream.channel_count(),
             stream.format(),
+            stream.sharing_mode(),
         );
 
         let shutdown = Arc::new(AtomicBool::new(false));
         let sd = shutdown.clone();
         let join = std::thread::Builder::new()
             .name("pf-mic".into())
-            .spawn(move || encode_loop(client, rx, sd, captured))
+            .spawn(move || encode_loop(client, rx, free_tx, sd, captured, dropped))
             .ok();
 
         Some(MicCapture {
@@ -109,11 +169,15 @@ impl Drop for MicCapture {
 }
 
 /// Consumer: drain captured f32 → accumulate → Opus `encode_float` 20 ms stereo frames → `send_mic`.
+/// Drained chunk buffers go back to the callback's free-list; the encode scratch is reused across
+/// frames (only the packet Vec handed to `send_mic` is allocated per frame — it's sent away owned).
 fn encode_loop(
     client: Arc<NativeClient>,
     rx: Receiver<Vec<f32>>,
+    free_tx: SyncSender<Vec<f32>>,
     shutdown: Arc<AtomicBool>,
     captured: Arc<AtomicU64>,
+    dropped: Arc<AtomicU64>,
 ) {
     let mut enc = match opus::Encoder::new(
         SAMPLE_RATE as u32,
@@ -130,6 +194,7 @@ fn encode_loop(
 
     let frame = FRAME_SAMPLES * CHANNELS;
     let mut ring: VecDeque<f32> = VecDeque::with_capacity(frame * 4);
+    let mut pcm = vec![0f32; frame]; // reusable encode scratch (one 20 ms frame)
     let mut out = vec![0u8; 4000]; // max Opus packet for a 20 ms frame fits easily
     let mut seq: u32 = 0;
     let mut sent: u64 = 0;
@@ -137,12 +202,19 @@ fn encode_loop(
 
     while !shutdown.load(Ordering::Relaxed) {
         match rx.recv_timeout(Duration::from_millis(100)) {
-            Ok(chunk) => ring.extend(chunk),
+            Ok(mut chunk) => {
+                // `drain(..)` keeps the Vec's capacity; hand the emptied buffer back to the
+                // callback's free-list (dropped only if the pool is momentarily full).
+                ring.extend(chunk.drain(..));
+                let _ = free_tx.try_send(chunk);
+            }
             Err(RecvTimeoutError::Timeout) => continue, // wake to re-check shutdown
             Err(RecvTimeoutError::Disconnected) => break,
         }
         while ring.len() >= frame {
-            let pcm: Vec<f32> = ring.drain(..frame).collect();
+            for (dst, src) in pcm.iter_mut().zip(ring.drain(..frame)) {
+                *dst = src;
+            }
             for &s in &pcm {
                 peak = peak.max(s.abs());
             }
@@ -157,8 +229,9 @@ fn encode_loop(
                     sent += 1;
                     if sent % 250 == 0 {
                         log::info!(
-                            "mic: sent={sent} captured_frames={} peak={peak:.3}",
+                            "mic: sent={sent} captured_frames={} dropped_chunks={} peak={peak:.3}",
                             captured.load(Ordering::Relaxed),
+                            dropped.load(Ordering::Relaxed),
                         );
                         peak = 0.0;
                     }
@@ -168,7 +241,8 @@ fn encode_loop(
         }
     }
     log::info!(
-        "mic: stopped (sent={sent} captured_frames={})",
+        "mic: stopped (sent={sent} captured_frames={} dropped_chunks={})",
         captured.load(Ordering::Relaxed),
+        dropped.load(Ordering::Relaxed),
     );
 }

clients/android/native/src/session.rs

@@ -1,756 +0,0 @@
-//! Session lifecycle + plane wiring over JNI.
-//!
-//! A connected session is a [`SessionHandle`] — an `Arc<NativeClient>` plus the decode thread it
-//! feeds — boxed and handed to Kotlin as an opaque `jlong`. The connector is `Sync`, so the decode
-//! thread pulls the video plane (`next_frame`) directly while Kotlin still holds the handle.
-//!
-//! Wired: connect/close, the video plane (HEVC `next_frame` → NDK AMediaCodec → the SurfaceView's
-//! `ANativeWindow`, see [`crate::decode`]), host→client audio ([`crate::audio`]), input
-//! (`send_input` — mouse/keyboard/gamepad), rumble/DualSense HID feedback ([`crate::feedback`]),
-//! and the trust surface: `nativeGenerateIdentity` (persistent identity, Keystore-wrapped on the
-//! Kotlin side), `nativeConnect` with identity + pin (TOFU / pinned), and `nativePair` (SPAKE2 PIN).
-//!
-//! TODO(M4 Android stage 1): client→host DualSense rich input (`send_rich_input`), mode
-//! renegotiation. Port the remaining orchestration from `clients/linux`.
-
-use jni::objects::{JObject, JString};
-use jni::sys::{jboolean, jdoubleArray, jint, jlong, jsize};
-use jni::JNIEnv;
-use punktfunk_core::client::NativeClient;
-use punktfunk_core::config::{CompositorPref, GamepadPref, Mode};
-use punktfunk_core::input::{InputEvent, InputKind};
-use std::panic::AssertUnwindSafe;
-use std::sync::atomic::{AtomicBool, Ordering};
-use std::sync::{Arc, Mutex};
-use std::thread::JoinHandle;
-use std::time::Duration;
-
-/// Run a JNI body, catching any panic at the FFI boundary and returning `default` instead.
-///
-/// A panic unwinding out of an `extern "system"` function aborts the whole process on Rust ≥ 1.81 —
-/// a hard crash of the embedding Android app with no logcat trace. This mirrors the discipline the C
-/// ABI already enforces (`punktfunk_core::abi` wraps every entry point in `catch_unwind`); the
-/// `panic = "unwind"` profile in the workspace `Cargo.toml` exists precisely so these guards work.
-/// We apply it to the teardown + background-thread shims (the "leaving a stream" path), where an
-/// unexpected panic (e.g. a poisoned `Mutex` during concurrent teardown) must degrade to a logged
-/// no-op rather than kill the app.
-pub(crate) fn jni_guard<T>(default: T, f: impl FnOnce() -> T) -> T {
-    std::panic::catch_unwind(AssertUnwindSafe(f)).unwrap_or_else(|_| {
-        log::error!("punktfunk JNI: caught a panic at the FFI boundary (returning default)");
-        default
-    })
-}
-
-/// A live session behind the `jlong` handle: the connector + the decode thread it feeds.
-pub(crate) struct SessionHandle {
-    // Read only by the android decode path (`nativeStartVideo` → `crate::decode`); on the host
-    // build (CI's workspace clippy/build) those readers are cfg'd out, so it's intentionally unused.
-    #[cfg_attr(not(target_os = "android"), allow(dead_code))]
-    pub client: Arc<NativeClient>,
-    video: Mutex<Option<VideoThread>>,
-    #[cfg(target_os = "android")]
-    audio: Mutex<Option<crate::audio::AudioPlayback>>,
-    #[cfg(target_os = "android")]
-    mic: Mutex<Option<crate::mic::MicCapture>>,
-}
-
-struct VideoThread {
-    shutdown: Arc<AtomicBool>,
-    join: Option<JoinHandle<()>>,
-    /// Live decode stats, written by the decode thread and drained ~1 Hz by `nativeVideoStats`.
-    stats: Arc<crate::stats::VideoStats>,
-}
-
-impl SessionHandle {
-    /// Signal the decode thread to stop and join it. Idempotent.
-    fn stop_video(&self) {
-        if let Some(mut vt) = self.video.lock().unwrap().take() {
-            vt.shutdown.store(true, Ordering::SeqCst);
-            if let Some(j) = vt.join.take() {
-                let _ = j.join();
-            }
-        }
-    }
-
-    /// Stop + close audio playback. Dropping the [`crate::audio::AudioPlayback`] joins its decode
-    /// thread and closes the AAudio stream. Idempotent.
-    #[cfg(target_os = "android")]
-    fn stop_audio(&self) {
-        let _ = self.audio.lock().unwrap().take();
-    }
-
-    /// Stop mic uplink. Dropping the [`crate::mic::MicCapture`] joins its encode thread and closes
-    /// the AAudio input stream. Idempotent.
-    #[cfg(target_os = "android")]
-    fn stop_mic(&self) {
-        let _ = self.mic.lock().unwrap().take();
-    }
-}
-
-impl Drop for SessionHandle {
-    fn drop(&mut self) {
-        self.stop_video();
-        #[cfg(target_os = "android")]
-        self.stop_audio();
-        #[cfg(target_os = "android")]
-        self.stop_mic();
-    }
-}
-
-/// SHA-256 fingerprint → 64 lowercase hex chars (matches the host log + client-rs).
-fn hex32(fp: &[u8; 32]) -> String {
-    use std::fmt::Write;
-    fp.iter().fold(String::with_capacity(64), |mut s, b| {
-        let _ = write!(s, "{b:02x}");
-        s
-    })
-}
-
-/// 64-hex → [u8; 32]; `None` on bad length/char.
-fn parse_hex32(s: &str) -> Option<[u8; 32]> {
-    if s.len() != 64 {
-        return None;
-    }
-    let mut out = [0u8; 32];
-    for (i, b) in out.iter_mut().enumerate() {
-        *b = u8::from_str_radix(&s[2 * i..2 * i + 2], 16).ok()?;
-    }
-    Some(out)
-}
-
-/// `NativeBridge.nativeGenerateIdentity(): String` — mint a fresh persistent self-signed identity.
-/// Returns `"<certPem>\n-----PUNKTFUNK-KEY-----\n<keyPem>"`, or `""` on failure (logged). Kotlin
-/// persists it (Keystore-wrapped) and only calls this again when the store is genuinely empty.
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeGenerateIdentity<'local>(
-    env: JNIEnv<'local>,
-    _this: JObject<'local>,
-) -> jni::sys::jstring {
-    let out = match punktfunk_core::quic::endpoint::generate_identity() {
-        Ok((cert, key)) => format!("{cert}\n-----PUNKTFUNK-KEY-----\n{key}"),
-        Err(e) => {
-            log::error!("nativeGenerateIdentity failed: {e}");
-            String::new()
-        }
-    };
-    match env.new_string(out) {
-        Ok(s) => s.into_raw(),
-        Err(_) => JObject::null().into_raw(),
-    }
-}
-
-/// `NativeBridge.nativeConnect(host, port, w, h, hz, certPem, keyPem, pinHex, bitrateKbps,
-/// compositorPref, gamepadPref, hdrEnabled, audioChannels, timeoutMs): Long`. `certPem`/`keyPem`
-/// empty = anonymous, else presented as the persistent identity. `pinHex` empty = TOFU (read
-/// `nativeHostFingerprint` after), else 64-hex SHA-256 to pin the host (mismatch → 0). `bitrateKbps`
-/// 0 = host default. `compositorPref`/`gamepadPref` are `CompositorPref`/`GamepadPref` wire bytes
-/// (0 = Auto; unknown → Auto). `audioChannels` is the requested surround layout (2/6/8; normalized,
-/// anything else → stereo) — the host clamps it and the resolved count drives playback. `timeoutMs`
-/// is the handshake budget: the normal path passes a short value, the no-PIN "request access" path a
-/// long one (≥ the host's approval-park window) so a slow operator approval lands on this same parked
-/// connection rather than timing the client out first. Returns an opaque handle, or 0 on failure.
-#[no_mangle]
-#[allow(clippy::too_many_arguments)]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeConnect<'local>(
-    mut env: JNIEnv<'local>,
-    _this: JObject<'local>,
-    host: JString<'local>,
-    port: jint,
-    width: jint,
-    height: jint,
-    refresh_hz: jint,
-    cert_pem: JString<'local>,
-    key_pem: JString<'local>,
-    pin_hex: JString<'local>,
-    bitrate_kbps: jint,
-    compositor_pref: jint,
-    gamepad_pref: jint,
-    hdr_enabled: jboolean,
-    audio_channels: jint,
-    timeout_ms: jint,
-) -> jlong {
-    let host: String = match env.get_string(&host) {
-        Ok(s) => s.into(),
-        Err(_) => return 0,
-    };
-    let cert: String = env
-        .get_string(&cert_pem)
-        .map(Into::into)
-        .unwrap_or_default();
-    let key: String = env.get_string(&key_pem).map(Into::into).unwrap_or_default();
-    let pin_hex: String = env.get_string(&pin_hex).map(Into::into).unwrap_or_default();
-
-    let identity: Option<(String, String)> = if cert.is_empty() || key.is_empty() {
-        None
-    } else {
-        Some((cert, key))
-    };
-    let pin: Option<[u8; 32]> = if pin_hex.is_empty() {
-        None
-    } else {
-        match parse_hex32(&pin_hex) {
-            Some(fp) => Some(fp),
-            None => {
-                log::error!("nativeConnect: bad pin hex (len {})", pin_hex.len());
-                return 0;
-            }
-        }
-    };
-    let mode = Mode {
-        width: width as u32,
-        height: height as u32,
-        refresh_hz: refresh_hz as u32,
-    };
-    match NativeClient::connect(
-        &host,
-        port as u16,
-        mode,
-        CompositorPref::from_u8(compositor_pref.clamp(0, u8::MAX as jint) as u8),
-        GamepadPref::from_u8(gamepad_pref.clamp(0, u8::MAX as jint) as u8),
-        bitrate_kbps.max(0) as u32, // 0 = host default
-        // Advertise 10-bit + HDR ONLY when this device's display can actually present it (Kotlin
-        // checks Display.getHdrCapabilities() and passes the result): the host (e.g. Windows) then
-        // upgrades to a Main10 / BT.2020 PQ encode. On an SDR display we advertise 0 so the host
-        // sends a proper 8-bit BT.709 stream rather than PQ the panel would mis-tone-map. AMediaCodec
-        // decodes Main10 from the SPS and the decode loop signals the Surface HDR dataspace + static
-        // metadata (see crate::decode).
-        if hdr_enabled != 0 {
-            punktfunk_core::quic::VIDEO_CAP_10BIT | punktfunk_core::quic::VIDEO_CAP_HDR
-        } else {
-            0
-        },
-        // Requested surround layout (2 = stereo / 6 = 5.1 / 8 = 7.1). The host clamps to what it can
-        // capture and echoes the resolved count in `connector.audio_channels`, which drives the
-        // decoder + AAudio layout (read in `crate::audio::AudioPlayback::start`). Anything else
-        // normalizes to stereo here.
-        punktfunk_core::audio::normalize_channels(audio_channels.clamp(0, u8::MAX as jint) as u8),
-        None,     // launch: default app
-        pin,      // Some → Crypto on host-fp mismatch
-        identity, // owned (cert, key) PEM, or None (anonymous)
-        // Handshake budget from Kotlin: ~10 s for a normal connect, ~185 s for "request access"
-        // (the host parks the connection until the operator approves the device — see ConnectScreen).
-        Duration::from_millis(timeout_ms.max(0) as u64),
-    ) {
-        Ok(client) => {
-            let handle = SessionHandle {
-                client: Arc::new(client),
-                video: Mutex::new(None),
-                #[cfg(target_os = "android")]
-                audio: Mutex::new(None),
-                #[cfg(target_os = "android")]
-                mic: Mutex::new(None),
-            };
-            Box::into_raw(Box::new(handle)) as jlong
-        }
-        Err(e) => {
-            log::error!("nativeConnect to {host}:{port} failed: {e}");
-            0
-        }
-    }
-}
-
-/// `NativeBridge.nativeClose(handle)` — drop the session (stops the decode thread, then RAII-tears
-/// down the connector). No-op on `0`.
-///
-/// # Safety contract
-/// `handle` must be `0` or a live handle from [`Java_io_unom_punktfunk_kit_NativeBridge_nativeConnect`],
-/// closed exactly once and not concurrently with other calls on the same handle (Kotlin owns this).
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeClose(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-) {
-    jni_guard((), || {
-        if handle != 0 {
-            // SAFETY: per the contract, `handle` is a live `Box<SessionHandle>` pointer.
-            unsafe { drop(Box::from_raw(handle as *mut SessionHandle)) };
-        }
-    })
-}
-
-/// `NativeBridge.nativeHostFingerprint(handle): String` — the SHA-256 (64-hex) of the cert the host
-/// presented on this connection. Valid after a successful `nativeConnect`; Kotlin pins it on a TOFU
-/// connect. `""` on a `0` handle.
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeHostFingerprint<'local>(
-    env: JNIEnv<'local>,
-    _this: JObject<'local>,
-    handle: jlong,
-) -> jni::sys::jstring {
-    let out = if handle == 0 {
-        String::new()
-    } else {
-        // SAFETY: live handle per the nativeConnect/nativeClose contract.
-        let h = unsafe { &*(handle as *const SessionHandle) };
-        hex32(&h.client.host_fingerprint)
-    };
-    match env.new_string(out) {
-        Ok(s) => s.into_raw(),
-        Err(_) => JObject::null().into_raw(),
-    }
-}
-
-/// `NativeBridge.nativePair(host, port, certPem, keyPem, pin, name): String` — run the SPAKE2 PIN
-/// ceremony, presenting our persistent identity. On success returns the host's verified fingerprint
-/// (64-hex) to persist + pin; on any failure (wrong PIN / MITM / host reject / unreachable) returns
-/// `""` (logged). Blocking — Kotlin calls it off the UI thread.
-#[no_mangle]
-#[allow(clippy::too_many_arguments)]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativePair<'local>(
-    mut env: JNIEnv<'local>,
-    _this: JObject<'local>,
-    host: JString<'local>,
-    port: jint,
-    cert_pem: JString<'local>,
-    key_pem: JString<'local>,
-    pin: JString<'local>,
-    name: JString<'local>,
-) -> jni::sys::jstring {
-    let g = |e: &mut JNIEnv<'local>, j: &JString<'local>| -> String {
-        e.get_string(j).map(Into::into).unwrap_or_default()
-    };
-    let host = g(&mut env, &host);
-    let cert = g(&mut env, &cert_pem);
-    let key = g(&mut env, &key_pem);
-    let pin = g(&mut env, &pin);
-    let name = g(&mut env, &name);
-
-    let out = if host.is_empty() || cert.is_empty() || key.is_empty() {
-        log::error!("nativePair: missing host/identity");
-        String::new()
-    } else {
-        match NativeClient::pair(
-            &host,
-            port as u16,
-            (&cert, &key), // borrowed identity
-            &pin,
-            &name,
-            Duration::from_secs(60),
-        ) {
-            Ok(host_fp) => hex32(&host_fp),
-            Err(e) => {
-                // Crypto error == wrong PIN / MITM; anything else == transport/host reject.
-                log::error!("nativePair to {host}:{port} failed: {e}");
-                String::new()
-            }
-        }
-    };
-    match env.new_string(out) {
-        Ok(s) => s.into_raw(),
-        Err(_) => JObject::null().into_raw(),
-    }
-}
-
-/// `NativeBridge.nativeStartVideo(handle, surface)` — wrap the SurfaceView's `Surface` as an
-/// `ANativeWindow` and start the HEVC decode thread rendering onto it. No-op if already started.
-#[cfg(target_os = "android")]
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStartVideo(
-    env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-    surface: JObject,
-) {
-    if handle == 0 {
-        return;
-    }
-    // SAFETY: live handle per the nativeConnect/nativeClose contract.
-    let h = unsafe { &*(handle as *const SessionHandle) };
-    let mut guard = h.video.lock().unwrap();
-    if guard.is_some() {
-        return; // already streaming
-    }
-    // SAFETY: `env`/`surface` are valid JNI pointers for this call. `as *mut _` bridges any
-    // jni-sys version skew between the `jni` and `ndk` crates (both are raw `*mut _` pointers).
-    let window = match unsafe {
-        ndk::native_window::NativeWindow::from_surface(
-            env.get_native_interface() as *mut _,
-            surface.as_raw() as *mut _,
-        )
-    } {
-        Some(w) => w,
-        None => {
-            log::error!("nativeStartVideo: no ANativeWindow from Surface");
-            return;
-        }
-    };
-    let shutdown = Arc::new(AtomicBool::new(false));
-    let stats = Arc::new(crate::stats::VideoStats::new());
-    let client = h.client.clone();
-    let sd = shutdown.clone();
-    let st = stats.clone();
-    let join = std::thread::Builder::new()
-        .name("pf-decode".into())
-        .spawn(move || crate::decode::run(client, window, sd, st))
-        .ok();
-    *guard = Some(VideoThread {
-        shutdown,
-        join,
-        stats,
-    });
-}
-
-/// `NativeBridge.nativeStopVideo(handle)` — stop + join the decode thread (without closing the
-/// session). No-op on `0`.
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStopVideo(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-) {
-    jni_guard((), || {
-        if handle != 0 {
-            // SAFETY: live handle per the contract.
-            let h = unsafe { &*(handle as *const SessionHandle) };
-            h.stop_video();
-        }
-    })
-}
-
-/// `NativeBridge.nativeVideoStats(handle): DoubleArray?` — drain ~1 s of decode stats for the HUD.
-/// Returns 14 doubles
-/// `[fps, mbps, latP50Ms, latP95Ms, latValid, skewCorrected, width, height, refreshHz, framesDropped,
-/// bitDepth, colorPrimaries, colorTransfer, chromaFormatIdc]`
-/// (the two flags are 1.0/0.0; the trailing four describe the negotiated video feed — see below), or
-/// `null` when no decode thread is running. Poll ~1 Hz from the UI; each call resets the measurement
-/// window. Not android-gated — pure `jni` + connector reads, so it links on the host build too
-/// (Kotlin only ever calls it on device).
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeVideoStats(
-    env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-) -> jdoubleArray {
-    jni_guard(std::ptr::null_mut(), || {
-        if handle == 0 {
-            return std::ptr::null_mut();
-        }
-        // SAFETY: live handle per the nativeConnect/nativeClose contract.
-        let h = unsafe { &*(handle as *const SessionHandle) };
-        let snap = match h.video.lock().unwrap().as_ref() {
-            Some(vt) => vt.stats.drain(),
-            None => return std::ptr::null_mut(), // not streaming → no stats
-        };
-        let mode = h.client.mode();
-        let color = h.client.color;
-        let buf: [f64; 14] = [
-            snap.fps,
-            snap.mbps,
-            snap.lat_p50_ms,
-            snap.lat_p95_ms,
-            if snap.lat_valid { 1.0 } else { 0.0 },
-            if snap.skew_corrected { 1.0 } else { 0.0 },
-            mode.width as f64,
-            mode.height as f64,
-            mode.refresh_hz as f64,
-            h.client.frames_dropped() as f64,
-            // Video-feed properties the host resolved at the handshake (Welcome): encode bit depth
-            // (8 / 10), the CICP colour primaries + transfer code points (Kotlin maps these to a
-            // colour-space / HDR label — transfer 16 = PQ, 18 = HLG ⇒ HDR), and the HEVC
-            // chroma_format_idc (1 = 4:2:0, 3 = 4:4:4). Static for the session unless renegotiated.
-            h.client.bit_depth as f64,
-            color.primaries as f64,
-            color.transfer as f64,
-            h.client.chroma_format as f64,
-        ];
-        let arr = match env.new_double_array(buf.len() as jsize) {
-            Ok(a) => a,
-            Err(_) => return std::ptr::null_mut(),
-        };
-        if env.set_double_array_region(&arr, 0, &buf).is_err() {
-            return std::ptr::null_mut();
-        }
-        arr.into_raw()
-    })
-}
-
-/// `NativeBridge.nativeStartAudio(handle)` — start the Opus→AAudio playback thread. No-op if already
-/// started or on a `0` handle. Best-effort: a failure leaves video streaming.
-#[cfg(target_os = "android")]
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStartAudio(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-) {
-    if handle == 0 {
-        return;
-    }
-    // SAFETY: live handle per the nativeConnect/nativeClose contract.
-    let h = unsafe { &*(handle as *const SessionHandle) };
-    let mut guard = h.audio.lock().unwrap();
-    if guard.is_some() {
-        return; // already playing
-    }
-    match crate::audio::AudioPlayback::start(h.client.clone()) {
-        Some(p) => *guard = Some(p),
-        None => log::error!("nativeStartAudio: playback init failed (video unaffected)"),
-    }
-}
-
-/// `NativeBridge.nativeStopAudio(handle)` — stop + join the audio thread and close AAudio (without
-/// closing the session). No-op on `0`.
-#[cfg(target_os = "android")]
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStopAudio(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-) {
-    jni_guard((), || {
-        if handle != 0 {
-            // SAFETY: live handle per the contract.
-            let h = unsafe { &*(handle as *const SessionHandle) };
-            h.stop_audio();
-        }
-    })
-}
-
-/// `NativeBridge.nativeStartMic(handle)` — start mic capture (AAudio input → Opus → host `send_mic`).
-/// No-op if already running or on a `0` handle. Caller MUST hold RECORD_AUDIO; a failure (e.g. no
-/// permission) leaves the rest of the session streaming.
-#[cfg(target_os = "android")]
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStartMic(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-) {
-    if handle == 0 {
-        return;
-    }
-    // SAFETY: live handle per the nativeConnect/nativeClose contract.
-    let h = unsafe { &*(handle as *const SessionHandle) };
-    let mut guard = h.mic.lock().unwrap();
-    if guard.is_some() {
-        return; // already capturing
-    }
-    match crate::mic::MicCapture::start(h.client.clone()) {
-        Some(m) => *guard = Some(m),
-        None => log::error!("nativeStartMic: mic init failed (RECORD_AUDIO? — session unaffected)"),
-    }
-}
-
-/// `NativeBridge.nativeStopMic(handle)` — stop + join the mic thread and close the AAudio input
-/// stream (without closing the session). No-op on `0`.
-#[cfg(target_os = "android")]
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStopMic(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-) {
-    jni_guard((), || {
-        if handle != 0 {
-            // SAFETY: live handle per the contract.
-            let h = unsafe { &*(handle as *const SessionHandle) };
-            h.stop_mic();
-        }
-    })
-}
-
-// ---- Input plane: Kotlin capture → NativeClient::send_input ----------------------------------
-// All four are `&self` on the `Sync` connector (send_input is a non-blocking datagram push), safe
-// from the Kotlin UI thread. NOT android-gated — send_input exists on the host build too, so these
-// compile everywhere (parity with nativeConnect/nativeClose). The wire codes are the GameStream
-// conventions: buttons 1=left/2=middle/3=right/4=X1/5=X2; scroll axis 0=vertical/1=horizontal,
-// signed 120-unit delta, +=up/right; keys are Windows VK (mapped from KEYCODE_* on the Kotlin side).
-
-/// `NativeBridge.nativeSendPointerMove(handle, dx, dy)` — relative mouse motion (screen +y down).
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendPointerMove(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-    dx: jint,
-    dy: jint,
-) {
-    if handle == 0 {
-        return;
-    }
-    // SAFETY: live handle per the nativeConnect/nativeClose contract; send_input is &self.
-    let h = unsafe { &*(handle as *const SessionHandle) };
-    let _ = h.client.send_input(&InputEvent {
-        kind: InputKind::MouseMove,
-        _pad: [0; 3],
-        code: 0,
-        x: dx,
-        y: dy,
-        flags: 0,
-    });
-}
-
-/// `NativeBridge.nativeSendPointerAbs(handle, x, y, surfaceWidth, surfaceHeight)` — absolute cursor
-/// position: the host moves the pointer to `x`/`y` in a `surfaceWidth`×`surfaceHeight` pixel space,
-/// normalizing against the size packed into `flags` as `(w << 16) | h` and mapping into the output
-/// region (it drops the event if that size is zero). This is the touch "direct pointing" path — the
-/// cursor jumps to the finger — and matches the Apple client's absolute touch forwarding.
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendPointerAbs(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-    x: jint,
-    y: jint,
-    surface_width: jint,
-    surface_height: jint,
-) {
-    if handle == 0 {
-        return;
-    }
-    // SAFETY: live handle per the contract.
-    let h = unsafe { &*(handle as *const SessionHandle) };
-    let w = (surface_width.max(0) as u32) & 0xffff;
-    let ht = (surface_height.max(0) as u32) & 0xffff;
-    let _ = h.client.send_input(&InputEvent {
-        kind: InputKind::MouseMoveAbs,
-        _pad: [0; 3],
-        code: 0,
-        x,
-        y,
-        flags: (w << 16) | ht,
-    });
-}
-
-/// `NativeBridge.nativeSendPointerButton(handle, button, down)` — one button transition.
-/// `button`: GameStream id (1=left, 2=middle, 3=right, 4=X1, 5=X2). `down`: 1=press, 0=release.
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendPointerButton(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-    button: jint,
-    down: jboolean,
-) {
-    if handle == 0 {
-        return;
-    }
-    // SAFETY: live handle per the contract.
-    let h = unsafe { &*(handle as *const SessionHandle) };
-    let _ = h.client.send_input(&InputEvent {
-        kind: if down != 0 {
-            InputKind::MouseButtonDown
-        } else {
-            InputKind::MouseButtonUp
-        },
-        _pad: [0; 3],
-        code: button as u32,
-        x: 0,
-        y: 0,
-        flags: 0,
-    });
-}
-
-/// `NativeBridge.nativeSendScroll(handle, axis, delta)` — one scroll step. `axis`: 0=vertical,
-/// 1=horizontal. `delta`: signed, WHEEL_DELTA(120)-scaled, +=up/right.
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendScroll(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-    axis: jint,
-    delta: jint,
-) {
-    if handle == 0 {
-        return;
-    }
-    // SAFETY: live handle per the contract.
-    let h = unsafe { &*(handle as *const SessionHandle) };
-    let _ = h.client.send_input(&InputEvent {
-        kind: InputKind::MouseScroll,
-        _pad: [0; 3],
-        code: axis as u32,
-        x: delta,
-        y: 0,
-        flags: 0,
-    });
-}
-
-/// `NativeBridge.nativeSendKey(handle, vk, down, mods)` — one key transition. `vk`: Windows
-/// Virtual-Key code (0 = unmapped → dropped). `down`: 1=press, 0=release. `mods`: VK modifier
-/// bitmask (0 for now — the host folds modifiers from the L/R modifier key events themselves).
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendKey(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-    vk: jint,
-    down: jboolean,
-    mods: jint,
-) {
-    if handle == 0 || vk == 0 {
-        return;
-    }
-    // SAFETY: live handle per the contract.
-    let h = unsafe { &*(handle as *const SessionHandle) };
-    let _ = h.client.send_input(&InputEvent {
-        kind: if down != 0 {
-            InputKind::KeyDown
-        } else {
-            InputKind::KeyUp
-        },
-        _pad: [0; 3],
-        code: vk as u32,
-        x: 0,
-        y: 0,
-        flags: mods as u32,
-    });
-}
-
-// ---- Gamepad: Kotlin captures (KeyEvent/MotionEvent) → NativeClient::send_input ---------------
-// Single-pad model: exactly one controller, forwarded as pad 0 (flags = 0). Buttons carry the
-// gamepad::BTN_* bit in `code` and pressed/released in `x` (1/0); axes carry the gamepad::AXIS_* id
-// in `code` and the value in `x` (sticks i16 −32768..32767, +y = up; triggers 0..255). The host
-// accumulates the incremental events into its virtual xpad. Wire contract: input.rs::gamepad.
-
-/// `NativeBridge.nativeSendGamepadButton(handle, bit, down)` — one gamepad button transition.
-/// `bit`: a `gamepad::BTN_*` bit (e.g. BTN_A = 0x1000). `down`: 1=press, 0=release.
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendGamepadButton(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-    bit: jint,
-    down: jboolean,
-) {
-    if handle == 0 {
-        return;
-    }
-    // SAFETY: live handle per the contract.
-    let h = unsafe { &*(handle as *const SessionHandle) };
-    let _ = h.client.send_input(&InputEvent {
-        kind: InputKind::GamepadButton,
-        _pad: [0; 3],
-        code: bit as u32,
-        x: i32::from(down != 0),
-        y: 0,
-        flags: 0, // pad index 0 — single-pad model
-    });
-}
-
-/// `NativeBridge.nativeSendGamepadAxis(handle, axisId, value)` — one gamepad axis update.
-/// `axisId`: a `gamepad::AXIS_*` id (LS_X=0..RT=5). `value`: stick i16 (−32768..32767, +y=up) or
-/// trigger 0..255.
-#[no_mangle]
-pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendGamepadAxis(
-    _env: JNIEnv,
-    _this: JObject,
-    handle: jlong,
-    axis_id: jint,
-    value: jint,
-) {
-    if handle == 0 {
-        return;
-    }
-    // SAFETY: live handle per the contract.
-    let h = unsafe { &*(handle as *const SessionHandle) };
-    let _ = h.client.send_input(&InputEvent {
-        kind: InputKind::GamepadAxis,
-        _pad: [0; 3],
-        code: axis_id as u32,
-        x: value,
-        y: 0,
-        flags: 0, // pad index 0 — single-pad model
-    });
-}

clients/android/native/src/session/connect.rs

@@ -0,0 +1,244 @@
+//! Connect lifecycle + the trust surface: identity mint, connect (TOFU / pinned), close,
+//! host-fingerprint read, and the SPAKE2 PIN pairing ceremony.
+
+use jni::objects::{JObject, JString};
+use jni::sys::{jboolean, jint, jlong};
+use jni::JNIEnv;
+use punktfunk_core::client::NativeClient;
+use punktfunk_core::config::{CompositorPref, GamepadPref, Mode};
+use std::sync::{Arc, Mutex};
+use std::time::Duration;
+
+use super::{hex32, jni_guard, parse_hex32, SessionHandle};
+
+/// `NativeBridge.nativeGenerateIdentity(): String` — mint a fresh persistent self-signed identity.
+/// Returns `"<certPem>\n-----PUNKTFUNK-KEY-----\n<keyPem>"`, or `""` on failure (logged). Kotlin
+/// persists it (Keystore-wrapped) and only calls this again when the store is genuinely empty.
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeGenerateIdentity<'local>(
+    env: JNIEnv<'local>,
+    _this: JObject<'local>,
+) -> jni::sys::jstring {
+    let out = match punktfunk_core::quic::endpoint::generate_identity() {
+        Ok((cert, key)) => format!("{cert}\n-----PUNKTFUNK-KEY-----\n{key}"),
+        Err(e) => {
+            log::error!("nativeGenerateIdentity failed: {e}");
+            String::new()
+        }
+    };
+    match env.new_string(out) {
+        Ok(s) => s.into_raw(),
+        Err(_) => JObject::null().into_raw(),
+    }
+}
+
+/// `NativeBridge.nativeConnect(host, port, w, h, hz, certPem, keyPem, pinHex, bitrateKbps,
+/// compositorPref, gamepadPref, hdrEnabled, audioChannels, preferredCodec, timeoutMs): Long`.
+/// `certPem`/`keyPem` empty = anonymous, else presented as the persistent identity. `pinHex` empty
+/// = TOFU (read `nativeHostFingerprint` after), else 64-hex SHA-256 to pin the host (mismatch → 0).
+/// `bitrateKbps` 0 = host default. `compositorPref`/`gamepadPref` are `CompositorPref`/`GamepadPref`
+/// wire bytes (0 = Auto; unknown → Auto). `audioChannels` is the requested surround layout (2/6/8;
+/// normalized, anything else → stereo) — the host clamps it and the resolved count drives playback.
+/// `preferredCodec` is the soft codec preference wire byte (0 = Auto). `timeoutMs` is the handshake
+/// budget: the normal path passes a short value, the no-PIN "request access" path a long one (≥ the
+/// host's approval-park window) so a slow operator approval lands on this same parked connection
+/// rather than timing the client out first. Returns an opaque handle, or 0 on failure.
+#[no_mangle]
+#[allow(clippy::too_many_arguments)]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeConnect<'local>(
+    mut env: JNIEnv<'local>,
+    _this: JObject<'local>,
+    host: JString<'local>,
+    port: jint,
+    width: jint,
+    height: jint,
+    refresh_hz: jint,
+    cert_pem: JString<'local>,
+    key_pem: JString<'local>,
+    pin_hex: JString<'local>,
+    bitrate_kbps: jint,
+    compositor_pref: jint,
+    gamepad_pref: jint,
+    hdr_enabled: jboolean,
+    audio_channels: jint,
+    preferred_codec: jint,
+    timeout_ms: jint,
+) -> jlong {
+    let host: String = match env.get_string(&host) {
+        Ok(s) => s.into(),
+        Err(_) => return 0,
+    };
+    let cert: String = env
+        .get_string(&cert_pem)
+        .map(Into::into)
+        .unwrap_or_default();
+    let key: String = env.get_string(&key_pem).map(Into::into).unwrap_or_default();
+    let pin_hex: String = env.get_string(&pin_hex).map(Into::into).unwrap_or_default();
+
+    let identity: Option<(String, String)> = if cert.is_empty() || key.is_empty() {
+        None
+    } else {
+        Some((cert, key))
+    };
+    let pin: Option<[u8; 32]> = if pin_hex.is_empty() {
+        None
+    } else {
+        match parse_hex32(&pin_hex) {
+            Some(fp) => Some(fp),
+            None => {
+                log::error!("nativeConnect: bad pin hex (len {})", pin_hex.len());
+                return 0;
+            }
+        }
+    };
+    let mode = Mode {
+        width: width as u32,
+        height: height as u32,
+        refresh_hz: refresh_hz as u32,
+    };
+    match NativeClient::connect(
+        &host,
+        port as u16,
+        mode,
+        CompositorPref::from_u8(compositor_pref.clamp(0, u8::MAX as jint) as u8),
+        GamepadPref::from_u8(gamepad_pref.clamp(0, u8::MAX as jint) as u8),
+        bitrate_kbps.max(0) as u32, // 0 = host default
+        // Advertise 10-bit + HDR ONLY when this device's display can actually present it (Kotlin
+        // checks Display.getHdrCapabilities() and passes the result): the host (e.g. Windows) then
+        // upgrades to a Main10 / BT.2020 PQ encode. On an SDR display we advertise 0 so the host
+        // sends a proper 8-bit BT.709 stream rather than PQ the panel would mis-tone-map. AMediaCodec
+        // decodes Main10 from the SPS and the decode loop signals the Surface HDR dataspace + static
+        // metadata (see crate::decode).
+        if hdr_enabled != 0 {
+            punktfunk_core::quic::VIDEO_CAP_10BIT | punktfunk_core::quic::VIDEO_CAP_HDR
+        } else {
+            0
+        },
+        // Requested surround layout (2 = stereo / 6 = 5.1 / 8 = 7.1). The host clamps to what it can
+        // capture and echoes the resolved count in `connector.audio_channels`, which drives the
+        // decoder + AAudio layout (read in `crate::audio::AudioPlayback::start`). Anything else
+        // normalizes to stereo here.
+        punktfunk_core::audio::normalize_channels(audio_channels.clamp(0, u8::MAX as jint) as u8),
+        // Codecs this device can decode — AMediaCodec decodes both HEVC and H.264 (AV1 isn't wired;
+        // hosts don't emit it on the native path yet). The host resolves the emitted codec from these
+        // + the soft `preferred_codec` and echoes it in `connector.codec`, which drives the mime below.
+        punktfunk_core::quic::CODEC_H264 | punktfunk_core::quic::CODEC_HEVC,
+        preferred_codec.clamp(0, u8::MAX as jint) as u8,
+        None,     // launch: default app
+        pin,      // Some → Crypto on host-fp mismatch
+        identity, // owned (cert, key) PEM, or None (anonymous)
+        // Handshake budget from Kotlin: ~10 s for a normal connect, ~185 s for "request access"
+        // (the host parks the connection until the operator approves the device — see ConnectScreen).
+        Duration::from_millis(timeout_ms.max(0) as u64),
+    ) {
+        Ok(client) => {
+            let handle = SessionHandle {
+                client: Arc::new(client),
+                stats: Arc::new(crate::stats::VideoStats::new()),
+                video: Mutex::new(None),
+                #[cfg(target_os = "android")]
+                audio: Mutex::new(None),
+                #[cfg(target_os = "android")]
+                mic: Mutex::new(None),
+            };
+            Box::into_raw(Box::new(handle)) as jlong
+        }
+        Err(e) => {
+            log::error!("nativeConnect to {host}:{port} failed: {e}");
+            0
+        }
+    }
+}
+
+/// `NativeBridge.nativeClose(handle)` — drop the session (stops the decode thread, then RAII-tears
+/// down the connector). No-op on `0`.
+///
+/// # Safety contract
+/// `handle` must be `0` or a live handle from [`Java_io_unom_punktfunk_kit_NativeBridge_nativeConnect`],
+/// closed exactly once and not concurrently with other calls on the same handle (Kotlin owns this).
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeClose(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+) {
+    jni_guard((), || {
+        if handle != 0 {
+            // SAFETY: per the contract, `handle` is a live `Box<SessionHandle>` pointer.
+            unsafe { drop(Box::from_raw(handle as *mut SessionHandle)) };
+        }
+    })
+}
+
+/// `NativeBridge.nativeHostFingerprint(handle): String` — the SHA-256 (64-hex) of the cert the host
+/// presented on this connection. Valid after a successful `nativeConnect`; Kotlin pins it on a TOFU
+/// connect. `""` on a `0` handle.
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeHostFingerprint<'local>(
+    env: JNIEnv<'local>,
+    _this: JObject<'local>,
+    handle: jlong,
+) -> jni::sys::jstring {
+    let out = if handle == 0 {
+        String::new()
+    } else {
+        // SAFETY: live handle per the nativeConnect/nativeClose contract.
+        let h = unsafe { &*(handle as *const SessionHandle) };
+        hex32(&h.client.host_fingerprint)
+    };
+    match env.new_string(out) {
+        Ok(s) => s.into_raw(),
+        Err(_) => JObject::null().into_raw(),
+    }
+}
+
+/// `NativeBridge.nativePair(host, port, certPem, keyPem, pin, name): String` — run the SPAKE2 PIN
+/// ceremony, presenting our persistent identity. On success returns the host's verified fingerprint
+/// (64-hex) to persist + pin; on any failure (wrong PIN / MITM / host reject / unreachable) returns
+/// `""` (logged). Blocking — Kotlin calls it off the UI thread.
+#[no_mangle]
+#[allow(clippy::too_many_arguments)]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativePair<'local>(
+    mut env: JNIEnv<'local>,
+    _this: JObject<'local>,
+    host: JString<'local>,
+    port: jint,
+    cert_pem: JString<'local>,
+    key_pem: JString<'local>,
+    pin: JString<'local>,
+    name: JString<'local>,
+) -> jni::sys::jstring {
+    let g = |e: &mut JNIEnv<'local>, j: &JString<'local>| -> String {
+        e.get_string(j).map(Into::into).unwrap_or_default()
+    };
+    let host = g(&mut env, &host);
+    let cert = g(&mut env, &cert_pem);
+    let key = g(&mut env, &key_pem);
+    let pin = g(&mut env, &pin);
+    let name = g(&mut env, &name);
+
+    let out = if host.is_empty() || cert.is_empty() || key.is_empty() {
+        log::error!("nativePair: missing host/identity");
+        String::new()
+    } else {
+        match NativeClient::pair(
+            &host,
+            port as u16,
+            (&cert, &key), // borrowed identity
+            &pin,
+            &name,
+            Duration::from_secs(60),
+        ) {
+            Ok(host_fp) => hex32(&host_fp),
+            Err(e) => {
+                // Crypto error == wrong PIN / MITM; anything else == transport/host reject.
+                log::error!("nativePair to {host}:{port} failed: {e}");
+                String::new()
+            }
+        }
+    };
+    match env.new_string(out) {
+        Ok(s) => s.into_raw(),
+        Err(_) => JObject::null().into_raw(),
+    }
+}

clients/android/native/src/session/input.rs

@@ -0,0 +1,187 @@
+//! Input plane: Kotlin capture → `NativeClient::send_input`.
+//!
+//! All shims are `&self` on the `Sync` connector (send_input is a non-blocking datagram push), safe
+//! from the Kotlin UI thread. NOT android-gated — send_input exists on the host build too, so these
+//! compile everywhere (parity with nativeConnect/nativeClose). The wire codes are the GameStream
+//! conventions: buttons 1=left/2=middle/3=right/4=X1/5=X2; scroll axis 0=vertical/1=horizontal,
+//! signed 120-unit delta, +=up/right; keys are Windows VK (mapped from KEYCODE_* on the Kotlin side).
+
+use jni::objects::JObject;
+use jni::sys::{jboolean, jint, jlong};
+use jni::JNIEnv;
+use punktfunk_core::input::{InputEvent, InputKind};
+
+use super::SessionHandle;
+
+/// Shared shim body: guard against a `0` handle, deref, and push one [`InputEvent`].
+fn send_event(handle: jlong, kind: InputKind, code: u32, x: i32, y: i32, flags: u32) {
+    if handle == 0 {
+        return;
+    }
+    // SAFETY: live handle per the nativeConnect/nativeClose contract; send_input is &self.
+    let h = unsafe { &*(handle as *const SessionHandle) };
+    let _ = h.client.send_input(&InputEvent {
+        kind,
+        _pad: [0; 3],
+        code,
+        x,
+        y,
+        flags,
+    });
+}
+
+/// `NativeBridge.nativeSendPointerMove(handle, dx, dy)` — relative mouse motion (screen +y down).
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendPointerMove(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+    dx: jint,
+    dy: jint,
+) {
+    send_event(handle, InputKind::MouseMove, 0, dx, dy, 0);
+}
+
+/// `NativeBridge.nativeSendPointerAbs(handle, x, y, surfaceWidth, surfaceHeight)` — absolute cursor
+/// position: the host moves the pointer to `x`/`y` in a `surfaceWidth`×`surfaceHeight` pixel space,
+/// normalizing against the size packed into `flags` as `(w << 16) | h` and mapping into the output
+/// region (it drops the event if that size is zero). This is the touch "direct pointing" path — the
+/// cursor jumps to the finger — and matches the Apple client's absolute touch forwarding.
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendPointerAbs(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+    x: jint,
+    y: jint,
+    surface_width: jint,
+    surface_height: jint,
+) {
+    let w = (surface_width.max(0) as u32) & 0xffff;
+    let ht = (surface_height.max(0) as u32) & 0xffff;
+    send_event(handle, InputKind::MouseMoveAbs, 0, x, y, (w << 16) | ht);
+}
+
+/// `NativeBridge.nativeSendPointerButton(handle, button, down)` — one button transition.
+/// `button`: GameStream id (1=left, 2=middle, 3=right, 4=X1, 5=X2). `down`: 1=press, 0=release.
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendPointerButton(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+    button: jint,
+    down: jboolean,
+) {
+    let kind = if down != 0 {
+        InputKind::MouseButtonDown
+    } else {
+        InputKind::MouseButtonUp
+    };
+    send_event(handle, kind, button as u32, 0, 0, 0);
+}
+
+/// `NativeBridge.nativeSendScroll(handle, axis, delta)` — one scroll step. `axis`: 0=vertical,
+/// 1=horizontal. `delta`: signed, WHEEL_DELTA(120)-scaled, +=up/right.
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendScroll(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+    axis: jint,
+    delta: jint,
+) {
+    send_event(handle, InputKind::MouseScroll, axis as u32, delta, 0, 0);
+}
+
+/// `NativeBridge.nativeSendTouch(handle, id, kind, x, y, surfaceWidth, surfaceHeight)` — one REAL
+/// touchscreen transition (`kind`: 0=down 1=move 2=up), for the touch-passthrough input mode. `id`
+/// distinguishes fingers (reusable after up); coordinates are pixels on the client's touch
+/// surface, whose size rides in `flags` so the host can rescale into the output (identical
+/// packing to MouseMoveAbs). On up only the id matters. The host injects a real touch contact
+/// (libei touchscreen / wlroots / SendInput).
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendTouch(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+    id: jint,
+    kind: jint,
+    x: jint,
+    y: jint,
+    surface_width: jint,
+    surface_height: jint,
+) {
+    let kind = match kind {
+        0 => InputKind::TouchDown,
+        1 => InputKind::TouchMove,
+        _ => InputKind::TouchUp,
+    };
+    let w = (surface_width.max(0) as u32) & 0xffff;
+    let h = (surface_height.max(0) as u32) & 0xffff;
+    send_event(handle, kind, id as u32, x, y, (w << 16) | h);
+}
+
+/// `NativeBridge.nativeSendKey(handle, vk, down, mods)` — one key transition. `vk`: Windows
+/// Virtual-Key code (0 = unmapped → dropped). `down`: 1=press, 0=release. `mods`: VK modifier
+/// bitmask (0 for now — the host folds modifiers from the L/R modifier key events themselves).
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendKey(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+    vk: jint,
+    down: jboolean,
+    mods: jint,
+) {
+    if vk == 0 {
+        return;
+    }
+    let kind = if down != 0 {
+        InputKind::KeyDown
+    } else {
+        InputKind::KeyUp
+    };
+    send_event(handle, kind, vk as u32, 0, 0, mods as u32);
+}
+
+// ---- Gamepad: Kotlin captures (KeyEvent/MotionEvent) → NativeClient::send_input ---------------
+// Single-pad model: exactly one controller, forwarded as pad 0 (flags = 0). Buttons carry the
+// gamepad::BTN_* bit in `code` and pressed/released in `x` (1/0); axes carry the gamepad::AXIS_* id
+// in `code` and the value in `x` (sticks i16 −32768..32767, +y = up; triggers 0..255). The host
+// accumulates the incremental events into its virtual xpad. Wire contract: input.rs::gamepad.
+
+/// `NativeBridge.nativeSendGamepadButton(handle, bit, down)` — one gamepad button transition.
+/// `bit`: a `gamepad::BTN_*` bit (e.g. BTN_A = 0x1000). `down`: 1=press, 0=release.
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendGamepadButton(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+    bit: jint,
+    down: jboolean,
+) {
+    // flags = 0: pad index 0 — single-pad model.
+    send_event(
+        handle,
+        InputKind::GamepadButton,
+        bit as u32,
+        i32::from(down != 0),
+        0,
+        0,
+    );
+}
+
+/// `NativeBridge.nativeSendGamepadAxis(handle, axisId, value)` — one gamepad axis update.
+/// `axisId`: a `gamepad::AXIS_*` id (LS_X=0..RT=5). `value`: stick i16 (−32768..32767, +y=up) or
+/// trigger 0..255.
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSendGamepadAxis(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+    axis_id: jint,
+    value: jint,
+) {
+    // flags = 0: pad index 0 — single-pad model.
+    send_event(handle, InputKind::GamepadAxis, axis_id as u32, value, 0, 0);
+}

clients/android/native/src/session/mod.rs

@@ -0,0 +1,124 @@
+//! Session lifecycle + plane wiring over JNI.
+//!
+//! A connected session is a [`SessionHandle`] — an `Arc<NativeClient>` plus the decode thread it
+//! feeds — boxed and handed to Kotlin as an opaque `jlong`. The connector is `Sync`, so the decode
+//! thread pulls the video plane (`next_frame`) directly while Kotlin still holds the handle.
+//!
+//! Wired: connect/close, the video plane (HEVC `next_frame` → NDK AMediaCodec → the SurfaceView's
+//! `ANativeWindow`, see [`crate::decode`]), host→client audio ([`crate::audio`]), input
+//! (`send_input` — mouse/keyboard/gamepad), rumble/DualSense HID feedback ([`crate::feedback`]),
+//! and the trust surface: `nativeGenerateIdentity` (persistent identity, Keystore-wrapped on the
+//! Kotlin side), `nativeConnect` with identity + pin (TOFU / pinned), and `nativePair` (SPAKE2 PIN).
+//!
+//! Split by concern: [`connect`] (identity + connect/close + the trust surface), [`planes`]
+//! (video/audio/mic start/stop + the stats drain), [`input`] (the input-plane shims). This module
+//! keeps the shared infrastructure they all deref through.
+//!
+//! TODO(M4 Android stage 1): client→host DualSense rich input (`send_rich_input`), mode
+//! renegotiation. Port the remaining orchestration from `clients/linux`.
+
+mod connect;
+mod input;
+mod planes;
+
+use punktfunk_core::client::NativeClient;
+use std::panic::AssertUnwindSafe;
+use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::{Arc, Mutex};
+use std::thread::JoinHandle;
+
+/// Run a JNI body, catching any panic at the FFI boundary and returning `default` instead.
+///
+/// A panic unwinding out of an `extern "system"` function aborts the whole process on Rust ≥ 1.81 —
+/// a hard crash of the embedding Android app with no logcat trace. This mirrors the discipline the C
+/// ABI already enforces (`punktfunk_core::abi` wraps every entry point in `catch_unwind`); the
+/// `panic = "unwind"` profile in the workspace `Cargo.toml` exists precisely so these guards work.
+/// We apply it to the teardown + background-thread shims (the "leaving a stream" path), where an
+/// unexpected panic (e.g. a poisoned `Mutex` during concurrent teardown) must degrade to a logged
+/// no-op rather than kill the app.
+pub(crate) fn jni_guard<T>(default: T, f: impl FnOnce() -> T) -> T {
+    std::panic::catch_unwind(AssertUnwindSafe(f)).unwrap_or_else(|_| {
+        log::error!("punktfunk JNI: caught a panic at the FFI boundary (returning default)");
+        default
+    })
+}
+
+/// A live session behind the `jlong` handle: the connector + the decode thread it feeds.
+pub(crate) struct SessionHandle {
+    // Read only by the android decode path (`nativeStartVideo` → `crate::decode`); on the host
+    // build (CI's workspace clippy/build) those readers are cfg'd out, so it's intentionally unused.
+    #[cfg_attr(not(target_os = "android"), allow(dead_code))]
+    pub client: Arc<NativeClient>,
+    /// Live decode stats, written by the decode thread and drained ~1 Hz by `nativeVideoStats`.
+    /// Session-lifetime (not per `VideoThread`) so the HUD's enable gate set via
+    /// `nativeSetVideoStatsEnabled` survives surface teardown/recreate and can land before
+    /// `nativeStartVideo` — enabling resets the window, so no stale data leaks across restarts.
+    pub stats: Arc<crate::stats::VideoStats>,
+    video: Mutex<Option<VideoThread>>,
+    #[cfg(target_os = "android")]
+    audio: Mutex<Option<crate::audio::AudioPlayback>>,
+    #[cfg(target_os = "android")]
+    mic: Mutex<Option<crate::mic::MicCapture>>,
+}
+
+struct VideoThread {
+    shutdown: Arc<AtomicBool>,
+    join: Option<JoinHandle<()>>,
+}
+
+impl SessionHandle {
+    /// Signal the decode thread to stop and join it. Idempotent.
+    fn stop_video(&self) {
+        if let Some(mut vt) = self.video.lock().unwrap().take() {
+            vt.shutdown.store(true, Ordering::SeqCst);
+            if let Some(j) = vt.join.take() {
+                let _ = j.join();
+            }
+        }
+    }
+
+    /// Stop + close audio playback. Dropping the [`crate::audio::AudioPlayback`] joins its decode
+    /// thread and closes the AAudio stream. Idempotent.
+    #[cfg(target_os = "android")]
+    fn stop_audio(&self) {
+        let _ = self.audio.lock().unwrap().take();
+    }
+
+    /// Stop mic uplink. Dropping the [`crate::mic::MicCapture`] joins its encode thread and closes
+    /// the AAudio input stream. Idempotent.
+    #[cfg(target_os = "android")]
+    fn stop_mic(&self) {
+        let _ = self.mic.lock().unwrap().take();
+    }
+}
+
+impl Drop for SessionHandle {
+    fn drop(&mut self) {
+        self.stop_video();
+        #[cfg(target_os = "android")]
+        self.stop_audio();
+        #[cfg(target_os = "android")]
+        self.stop_mic();
+    }
+}
+
+/// SHA-256 fingerprint → 64 lowercase hex chars (matches the host log + client-rs).
+fn hex32(fp: &[u8; 32]) -> String {
+    use std::fmt::Write;
+    fp.iter().fold(String::with_capacity(64), |mut s, b| {
+        let _ = write!(s, "{b:02x}");
+        s
+    })
+}
+
+/// 64-hex → [u8; 32]; `None` on bad length/char.
+fn parse_hex32(s: &str) -> Option<[u8; 32]> {
+    if s.len() != 64 {
+        return None;
+    }
+    let mut out = [0u8; 32];
+    for (i, b) in out.iter_mut().enumerate() {
+        *b = u8::from_str_radix(&s[2 * i..2 * i + 2], 16).ok()?;
+    }
+    Some(out)
+}

clients/android/native/src/session/planes.rs

@@ -0,0 +1,248 @@
+//! Plane start/stop: video (HEVC decode → Surface), host→client audio, mic uplink — plus the
+//! ~1 Hz decode-stats drain for the HUD.
+
+use jni::objects::JObject;
+use jni::sys::{jboolean, jdoubleArray, jlong, jsize};
+use jni::JNIEnv;
+
+use super::{jni_guard, SessionHandle};
+
+/// `NativeBridge.nativeStartVideo(handle, surface)` — wrap the SurfaceView's `Surface` as an
+/// `ANativeWindow` and start the HEVC decode thread rendering onto it. No-op if already started.
+#[cfg(target_os = "android")]
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStartVideo(
+    env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+    surface: JObject,
+) {
+    use super::VideoThread;
+    use std::sync::atomic::AtomicBool;
+    use std::sync::Arc;
+
+    if handle == 0 {
+        return;
+    }
+    // SAFETY: live handle per the nativeConnect/nativeClose contract.
+    let h = unsafe { &*(handle as *const SessionHandle) };
+    let mut guard = h.video.lock().unwrap();
+    if guard.is_some() {
+        return; // already streaming
+    }
+    // SAFETY: `env`/`surface` are valid JNI pointers for this call. `as *mut _` bridges any
+    // jni-sys version skew between the `jni` and `ndk` crates (both are raw `*mut _` pointers).
+    let window = match unsafe {
+        ndk::native_window::NativeWindow::from_surface(
+            env.get_native_interface() as *mut _,
+            surface.as_raw() as *mut _,
+        )
+    } {
+        Some(w) => w,
+        None => {
+            log::error!("nativeStartVideo: no ANativeWindow from Surface");
+            return;
+        }
+    };
+    let shutdown = Arc::new(AtomicBool::new(false));
+    let client = h.client.clone();
+    let sd = shutdown.clone();
+    let st = h.stats.clone(); // session-lifetime stats (gate survives surface recreate)
+    let join = std::thread::Builder::new()
+        .name("pf-decode".into())
+        .spawn(move || crate::decode::run(client, window, sd, st))
+        .ok();
+    *guard = Some(VideoThread { shutdown, join });
+}
+
+/// `NativeBridge.nativeStopVideo(handle)` — stop + join the decode thread (without closing the
+/// session). No-op on `0`.
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStopVideo(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+) {
+    jni_guard((), || {
+        if handle != 0 {
+            // SAFETY: live handle per the contract.
+            let h = unsafe { &*(handle as *const SessionHandle) };
+            h.stop_video();
+        }
+    })
+}
+
+/// `NativeBridge.nativeVideoStats(handle): DoubleArray?` — drain ~1 s of decode stats for the HUD
+/// (unified stats spec, `design/stats-unification.md`). Returns 18 doubles
+/// `[fps, mbps, e2eP50Ms, e2eP95Ms, latValid, skewCorrected, width, height, refreshHz, framesLost,
+/// bitDepth, colorPrimaries, colorTransfer, chromaFormatIdc, hostNetP50Ms, decodeP50Ms, hostP50Ms,
+/// netP50Ms]`
+/// (the two flags are 1.0/0.0; indexes 0–15 match the previous 16-double layout — 0–13 the original
+/// 14-double one with the latency pair re-based to the end-to-end capture→decoded headline, 14/15
+/// the stage p50s tiling it: `host+network` = capture→received, `decode` = received→decoded; 16/17
+/// are the Phase-2 split of the `host+network` term from the per-AU 0xCF host timings — `host` =
+/// the host's capture→sent, `network` = the remainder — both 0.0 when no timing matched this
+/// window, i.e. an old host), or `null` when no decode thread is running. Poll ~1 Hz from the UI; each call
+/// resets the measurement window. Not android-gated — pure `jni` + connector reads, so it links on
+/// the host build too (Kotlin only ever calls it on device).
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeVideoStats(
+    env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+) -> jdoubleArray {
+    jni_guard(std::ptr::null_mut(), || {
+        if handle == 0 {
+            return std::ptr::null_mut();
+        }
+        // SAFETY: live handle per the nativeConnect/nativeClose contract.
+        let h = unsafe { &*(handle as *const SessionHandle) };
+        if h.video.lock().unwrap().is_none() {
+            return std::ptr::null_mut(); // not streaming → no stats
+        }
+        let snap = h.stats.drain();
+        let mode = h.client.mode();
+        let color = h.client.color;
+        let buf: [f64; 18] = [
+            snap.fps,
+            snap.mbps,
+            snap.e2e_p50_ms,
+            snap.e2e_p95_ms,
+            if snap.lat_valid { 1.0 } else { 0.0 },
+            if snap.skew_corrected { 1.0 } else { 0.0 },
+            mode.width as f64,
+            mode.height as f64,
+            mode.refresh_hz as f64,
+            h.client.frames_dropped() as f64,
+            // Video-feed properties the host resolved at the handshake (Welcome): encode bit depth
+            // (8 / 10), the CICP colour primaries + transfer code points (Kotlin maps these to a
+            // colour-space / HDR label — transfer 16 = PQ, 18 = HLG ⇒ HDR), and the HEVC
+            // chroma_format_idc (1 = 4:2:0, 3 = 4:4:4). Static for the session unless renegotiated.
+            h.client.bit_depth as f64,
+            color.primaries as f64,
+            color.transfer as f64,
+            h.client.chroma_format as f64,
+            // Stage p50s tiling the end-to-end headline (appended to keep 0–13 index-compatible).
+            snap.hostnet_p50_ms,
+            snap.decode_p50_ms,
+            // Phase-2 host/network split of the `host+network` stage (0xCF host timings): 0.0
+            // when no timing matched this window (old host) — the HUD keeps the combined term.
+            snap.host_p50_ms,
+            snap.net_p50_ms,
+        ];
+        let arr = match env.new_double_array(buf.len() as jsize) {
+            Ok(a) => a,
+            Err(_) => return std::ptr::null_mut(),
+        };
+        if env.set_double_array_region(&arr, 0, &buf).is_err() {
+            return std::ptr::null_mut();
+        }
+        arr.into_raw()
+    })
+}
+
+/// `NativeBridge.nativeSetVideoStatsEnabled(handle, enabled)` — gate per-frame stats sampling on the
+/// HUD actually being visible: while disabled the decode thread skips the clock read + lock per AU.
+/// Enabling resets the measurement window so a later show never reports stale data. Sticky for the
+/// session (survives video stop/start across surface recreation). No-op on `0`. Not android-gated —
+/// pure `jni` + an atomic store, so it links on the host build too.
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeSetVideoStatsEnabled(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+    enabled: jboolean,
+) {
+    jni_guard((), || {
+        if handle != 0 {
+            // SAFETY: live handle per the nativeConnect/nativeClose contract.
+            let h = unsafe { &*(handle as *const SessionHandle) };
+            h.stats.set_enabled(enabled != 0);
+        }
+    })
+}
+
+/// `NativeBridge.nativeStartAudio(handle)` — start the Opus→AAudio playback thread. No-op if already
+/// started or on a `0` handle. Best-effort: a failure leaves video streaming.
+#[cfg(target_os = "android")]
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStartAudio(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+) {
+    if handle == 0 {
+        return;
+    }
+    // SAFETY: live handle per the nativeConnect/nativeClose contract.
+    let h = unsafe { &*(handle as *const SessionHandle) };
+    let mut guard = h.audio.lock().unwrap();
+    if guard.is_some() {
+        return; // already playing
+    }
+    match crate::audio::AudioPlayback::start(h.client.clone()) {
+        Some(p) => *guard = Some(p),
+        None => log::error!("nativeStartAudio: playback init failed (video unaffected)"),
+    }
+}
+
+/// `NativeBridge.nativeStopAudio(handle)` — stop + join the audio thread and close AAudio (without
+/// closing the session). No-op on `0`.
+#[cfg(target_os = "android")]
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStopAudio(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+) {
+    jni_guard((), || {
+        if handle != 0 {
+            // SAFETY: live handle per the contract.
+            let h = unsafe { &*(handle as *const SessionHandle) };
+            h.stop_audio();
+        }
+    })
+}
+
+/// `NativeBridge.nativeStartMic(handle)` — start mic capture (AAudio input → Opus → host `send_mic`).
+/// No-op if already running or on a `0` handle. Caller MUST hold RECORD_AUDIO; a failure (e.g. no
+/// permission) leaves the rest of the session streaming.
+#[cfg(target_os = "android")]
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStartMic(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+) {
+    if handle == 0 {
+        return;
+    }
+    // SAFETY: live handle per the nativeConnect/nativeClose contract.
+    let h = unsafe { &*(handle as *const SessionHandle) };
+    let mut guard = h.mic.lock().unwrap();
+    if guard.is_some() {
+        return; // already capturing
+    }
+    match crate::mic::MicCapture::start(h.client.clone()) {
+        Some(m) => *guard = Some(m),
+        None => log::error!("nativeStartMic: mic init failed (RECORD_AUDIO? — session unaffected)"),
+    }
+}
+
+/// `NativeBridge.nativeStopMic(handle)` — stop + join the mic thread and close the AAudio input
+/// stream (without closing the session). No-op on `0`.
+#[cfg(target_os = "android")]
+#[no_mangle]
+pub extern "system" fn Java_io_unom_punktfunk_kit_NativeBridge_nativeStopMic(
+    _env: JNIEnv,
+    _this: JObject,
+    handle: jlong,
+) {
+    jni_guard((), || {
+        if handle != 0 {
+            // SAFETY: live handle per the contract.
+            let h = unsafe { &*(handle as *const SessionHandle) };
+            h.stop_mic();
+        }
+    })
+}

clients/android/native/src/stats.rs

@@ -1,15 +1,27 @@
-//! Live decode stats for the on-stream HUD (mirrors the Apple client's stats overlay): FPS,
-//! receive throughput, and capture→client-receipt latency (p50/p95). The decode thread is the sole
-//! writer (`note` per access unit); the JNI accessor `nativeVideoStats` drains a snapshot ~1 Hz and
-//! resets the window. Pure `std` so it compiles on the host build too (the decode thread is
-//! android-only, but `VideoThread` holds the shared handle unconditionally).
+//! Live decode stats for the on-stream HUD, following the unified stats spec
+//! (`design/stats-unification.md`): FPS, receive throughput, and the Android v1 stage split —
+//! headline `end-to-end` = capture→decoded (p50/p95) tiled by `host+network` = capture→received
+//! and `decode` = received→decoded (stage p50s). When the host emits per-AU 0xCF host timings, the
+//! `host+network` term further splits into `host` + `network` (Phase 2, `note_host_split`); an old
+//! host emits none and the combined term stands. The decode thread is the sole writer
+//! (`note_received` per access unit at receipt, `note_decoded` per decoder output buffer); the JNI
+//! accessor `nativeVideoStats` drains a snapshot ~1 Hz and resets the window. Sampling is gated on
+//! the HUD actually being visible (`set_enabled`, driven by `nativeSetVideoStatsEnabled`) so the
+//! hidden steady state costs one relaxed atomic load per frame.
+//! Pure `std` so it compiles on the host build too (the decode thread is android-only, but
+//! `SessionHandle` holds the shared handle unconditionally).
 
+use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::Mutex;
 use std::time::Instant;
 
 /// Rolling per-window accumulator. Rates are computed over the actual elapsed wall-time at drain
 /// (robust to poll jitter), so a poll that lands at 0.9 s or 1.1 s still reports the right FPS.
 pub struct VideoStats {
+    /// HUD gate: the samplers run on the per-frame decode path, so while the overlay is hidden
+    /// they (and the caller's latency computation — see `enabled`) early-out on this flag alone.
+    /// Off until Kotlin shows the HUD.
+    enabled: AtomicBool,
     inner: Mutex<Inner>,
 }
 
@@ -17,77 +29,198 @@ struct Inner {
     window_start: Instant,
     frames: u64,
     bytes: u64,
-    /// capture→client-receipt latency samples for this window, in microseconds.
-    lat_us: Vec<u64>,
+    /// `end-to-end` = capture→decoded latency samples for this window, in microseconds
+    /// (skew-corrected clock base).
+    e2e_us: Vec<u64>,
+    /// `host+network` stage = capture→received samples, in microseconds (skew-corrected).
+    hostnet_us: Vec<u64>,
+    /// Phase-2 split of `host+network` (design/stats-unification.md Phase 2), fed only when the
+    /// host emits per-AU 0xCF timings: `host` = the host's own capture→sent duration, µs.
+    host_us: Vec<u64>,
+    /// The matching `network` term, µs: capture→received minus the host's capture→sent
+    /// (wire + reassembly). Always pushed in lockstep with `host_us`.
+    net_us: Vec<u64>,
+    /// `decode` stage = received→decoded samples, in microseconds (client-local, single clock).
+    decode_us: Vec<u64>,
     /// Whether the host answered the clock-skew handshake (latency is cross-machine valid).
     skew_corrected: bool,
 }
 
-/// A drained, computed view of one window. `lat_valid` is false when no in-range latency sample
-/// landed (then p50/p95 are 0 and the HUD hides the latency line, exactly like the Apple client).
+/// A drained, computed view of one window. `lat_valid` is false when no in-range end-to-end sample
+/// landed (then the latency figures are 0 and the HUD hides the latency lines, exactly like the
+/// Apple client).
 pub struct Snapshot {
     pub fps: f64,
     pub mbps: f64,
-    pub lat_p50_ms: f64,
-    pub lat_p95_ms: f64,
+    /// Headline `end-to-end` (capture→decoded) percentiles, ms.
+    pub e2e_p50_ms: f64,
+    pub e2e_p95_ms: f64,
+    /// Stage p50s (ms): `host+network` (capture→received) and `decode` (received→decoded).
+    pub hostnet_p50_ms: f64,
+    pub decode_p50_ms: f64,
+    /// Phase-2 `host` / `network` split p50s (ms) — 0.0 when no 0xCF timing matched this window
+    /// (old host / no samples yet), in which case the HUD keeps the combined `host+network` term.
+    pub host_p50_ms: f64,
+    pub net_p50_ms: f64,
     pub lat_valid: bool,
     pub skew_corrected: bool,
 }
 
+/// Percentile over a sorted-in-place µs sample vec, in ms. 0.0 when empty.
+fn pctl_ms(sorted_us: &[u64], p: f64) -> f64 {
+    if sorted_us.is_empty() {
+        return 0.0;
+    }
+    let n = sorted_us.len();
+    sorted_us[((n as f64 * p) as usize).min(n - 1)] as f64 / 1000.0
+}
+
 impl VideoStats {
-    // `new`/`note` are driven only by the android-only decode thread; `drain` (the JNI accessor) is
-    // ungated, so on the host build these two are unreferenced — that's expected, not dead code.
-    #[cfg_attr(not(target_os = "android"), allow(dead_code))]
     pub fn new() -> VideoStats {
         VideoStats {
+            enabled: AtomicBool::new(false),
             inner: Mutex::new(Inner {
                 window_start: Instant::now(),
                 frames: 0,
                 bytes: 0,
-                lat_us: Vec::with_capacity(256),
+                e2e_us: Vec::with_capacity(256),
+                hostnet_us: Vec::with_capacity(256),
+                host_us: Vec::with_capacity(256),
+                net_us: Vec::with_capacity(256),
+                decode_us: Vec::with_capacity(256),
                 skew_corrected: false,
             }),
         }
     }
 
-    /// Record one decoded access unit: its wire size and (if in range) its capture→client latency.
+    /// Whether the HUD wants samples. The decode thread checks this BEFORE building a latency
+    /// sample, so the per-frame wall-clock reads are skipped too while hidden.
+    // Read only by the android-only decode thread; unreferenced on the host build — expected.
     #[cfg_attr(not(target_os = "android"), allow(dead_code))]
-    pub fn note(&self, bytes: usize, lat_us: Option<u64>, skew_corrected: bool) {
-        let mut g = self.inner.lock().unwrap();
+    pub fn enabled(&self) -> bool {
+        self.enabled.load(Ordering::Relaxed)
+    }
+
+    /// Toggle sampling. Enabling resets the window, so the first HUD poll after a show never mixes
+    /// in counters (or a window start) from before the overlay was visible.
+    pub fn set_enabled(&self, on: bool) {
+        let was = self.enabled.swap(on, Ordering::Relaxed);
+        if on && !was {
+            let mut g = self
+                .inner
+                .lock()
+                .unwrap_or_else(std::sync::PoisonError::into_inner);
+            g.window_start = Instant::now();
+            g.frames = 0;
+            g.bytes = 0;
+            g.e2e_us.clear();
+            g.hostnet_us.clear();
+            g.host_us.clear();
+            g.net_us.clear();
+            g.decode_us.clear();
+        }
+    }
+
+    /// Record one received access unit: its wire size and (if in range) its capture→received
+    /// `host+network` stage sample. Receipt is the fps/goodput counting point per the spec.
+    // Driven only by the android-only decode thread; unreferenced on the host build — expected.
+    #[cfg_attr(not(target_os = "android"), allow(dead_code))]
+    pub fn note_received(&self, bytes: usize, hostnet_us: Option<u64>, skew_corrected: bool) {
+        if !self.enabled.load(Ordering::Relaxed) {
+            return; // HUD hidden — skip the lock (the caller already skipped the clock read)
+        }
+        // Poison-proof: this runs per-frame on the decode thread, which has no catch_unwind —
+        // a panic elsewhere must not turn every later lock into a second panic (the counters
+        // stay consistent regardless).
+        let mut g = self
+            .inner
+            .lock()
+            .unwrap_or_else(std::sync::PoisonError::into_inner);
         g.frames += 1;
         g.bytes += bytes as u64;
         g.skew_corrected = skew_corrected;
-        if let Some(l) = lat_us {
-            g.lat_us.push(l);
+        if let Some(l) = hostnet_us {
+            g.hostnet_us.push(l);
+        }
+    }
+
+    /// Record one matched host/network split sample (Phase 2): the host's reported capture→sent
+    /// duration and our capture→received minus it, both µs — one pair per AU whose 0xCF host
+    /// timing arrived and matched by pts. An old host emits none, leaving the vecs empty and the
+    /// snapshot p50s at 0 (HUD keeps the combined `host+network` term).
+    // Driven only by the android-only decode thread; unreferenced on the host build — expected.
+    #[cfg_attr(not(target_os = "android"), allow(dead_code))]
+    pub fn note_host_split(&self, host_us: u64, net_us: u64) {
+        if !self.enabled.load(Ordering::Relaxed) {
+            return; // HUD hidden — skip the lock
+        }
+        // Poison-proof for the same reason as `note_received`.
+        let mut g = self
+            .inner
+            .lock()
+            .unwrap_or_else(std::sync::PoisonError::into_inner);
+        g.host_us.push(host_us);
+        g.net_us.push(net_us);
+    }
+
+    /// Record one decoded output frame: its capture→decoded `end-to-end` sample and its
+    /// received→decoded `decode` stage sample (either may be absent — e.g. the receipt stamp for
+    /// this pts predates the HUD being shown).
+    // Driven only by the android-only decode thread; unreferenced on the host build — expected.
+    #[cfg_attr(not(target_os = "android"), allow(dead_code))]
+    pub fn note_decoded(&self, e2e_us: Option<u64>, decode_us: Option<u64>) {
+        if !self.enabled.load(Ordering::Relaxed) {
+            return; // HUD hidden — skip the lock (the caller already skipped the clock read)
+        }
+        // Poison-proof for the same reason as `note_received`.
+        let mut g = self
+            .inner
+            .lock()
+            .unwrap_or_else(std::sync::PoisonError::into_inner);
+        if let Some(l) = e2e_us {
+            g.e2e_us.push(l);
+        }
+        if let Some(l) = decode_us {
+            g.decode_us.push(l);
         }
     }
 
     /// Compute the window's rates + latency percentiles, then reset for the next window.
     pub fn drain(&self) -> Snapshot {
-        let mut g = self.inner.lock().unwrap();
+        // Poison-proof for the same reason as `note_received` — a poisoned window still drains
+        // fine.
+        let mut g = self
+            .inner
+            .lock()
+            .unwrap_or_else(std::sync::PoisonError::into_inner);
         let elapsed = g.window_start.elapsed().as_secs_f64().max(1e-3);
         let fps = g.frames as f64 / elapsed;
         let mbps = g.bytes as f64 * 8.0 / 1_000_000.0 / elapsed;
-        let (p50, p95, valid) = if g.lat_us.is_empty() {
-            (0.0, 0.0, false)
-        } else {
-            g.lat_us.sort_unstable();
-            let n = g.lat_us.len();
-            let at = |p: f64| g.lat_us[((n as f64 * p) as usize).min(n - 1)] as f64 / 1000.0;
-            (at(0.50), at(0.95), true)
+        g.e2e_us.sort_unstable();
+        g.hostnet_us.sort_unstable();
+        g.host_us.sort_unstable();
+        g.net_us.sort_unstable();
+        g.decode_us.sort_unstable();
+        let snap = Snapshot {
+            fps,
+            mbps,
+            e2e_p50_ms: pctl_ms(&g.e2e_us, 0.50),
+            e2e_p95_ms: pctl_ms(&g.e2e_us, 0.95),
+            hostnet_p50_ms: pctl_ms(&g.hostnet_us, 0.50),
+            decode_p50_ms: pctl_ms(&g.decode_us, 0.50),
+            host_p50_ms: pctl_ms(&g.host_us, 0.50),
+            net_p50_ms: pctl_ms(&g.net_us, 0.50),
+            lat_valid: !g.e2e_us.is_empty(),
+            skew_corrected: g.skew_corrected,
         };
-        let skew = g.skew_corrected;
         g.window_start = Instant::now();
         g.frames = 0;
         g.bytes = 0;
-        g.lat_us.clear();
-        Snapshot {
-            fps,
-            mbps,
-            lat_p50_ms: p50,
-            lat_p95_ms: p95,
-            lat_valid: valid,
-            skew_corrected: skew,
-        }
+        g.e2e_us.clear();
+        g.hostnet_us.clear();
+        g.host_us.clear();
+        g.net_us.clear();
+        g.decode_us.clear();
+        snap
     }
 }

clients/apple/Config/Info.plist

@@ -16,5 +16,10 @@
 	     compliance question. -->
 	<key>ITSAppUsesNonExemptEncryption</key>
 	<false/>
+	<!-- Allow CADisplayLink above 60 Hz on ProMotion iPhones: without this key the system
+	     silently caps the link at 60 even when SessionPresenter asks for the stream's rate
+	     via preferredFrameRateRange, so a 120 fps stream would present at half rate. -->
+	<key>CADisableMinimumFrameDurationOnPhone</key>
+	<true/>
 </dict>
 </plist>

clients/apple/Punktfunk.xcodeproj/project.pbxproj

@@ -355,7 +355,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = punktfunk_Logo;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
-				CODE_SIGN_ENTITLEMENTS = Config/Punktfunk-macOS.entitlements;
+				CODE_SIGN_ENTITLEMENTS = "Config/Punktfunk-macOS.entitlements";
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
@@ -364,7 +364,7 @@
 				ENABLE_HARDENED_RUNTIME = YES;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = Config/Info.plist;
-				INFOPLIST_KEY_CFBundleDisplayName = "Punktfunk";
+				INFOPLIST_KEY_CFBundleDisplayName = Punktfunk;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Punktfunk connects directly to your punktfunk host on the local network to stream video, audio, and input.";
@@ -389,7 +389,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = punktfunk_Logo;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
-				CODE_SIGN_ENTITLEMENTS = Config/Punktfunk-macOS.entitlements;
+				CODE_SIGN_ENTITLEMENTS = "Config/Punktfunk-macOS.entitlements";
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
@@ -398,7 +398,7 @@
 				ENABLE_HARDENED_RUNTIME = YES;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = Config/Info.plist;
-				INFOPLIST_KEY_CFBundleDisplayName = "Punktfunk";
+				INFOPLIST_KEY_CFBundleDisplayName = Punktfunk;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Punktfunk connects directly to your punktfunk host on the local network to stream video, audio, and input.";
@@ -425,11 +425,11 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_ENTITLEMENTS = Config/Punktfunk.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = F4H37KF6WC;
 				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = F4H37KF6WC;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = Config/Info.plist;
-				INFOPLIST_KEY_CFBundleDisplayName = "Punktfunk";
+				INFOPLIST_KEY_CFBundleDisplayName = Punktfunk;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Punktfunk connects directly to your punktfunk host on the local network to stream video, audio, and input.";
 				INFOPLIST_KEY_NSMicrophoneUsageDescription = "Your microphone is streamed to the connected punktfunk host, where it appears as a virtual microphone.";
@@ -464,11 +464,11 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_ENTITLEMENTS = Config/Punktfunk.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = F4H37KF6WC;
 				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = F4H37KF6WC;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = Config/Info.plist;
-				INFOPLIST_KEY_CFBundleDisplayName = "Punktfunk";
+				INFOPLIST_KEY_CFBundleDisplayName = Punktfunk;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Punktfunk connects directly to your punktfunk host on the local network to stream video, audio, and input.";
 				INFOPLIST_KEY_NSMicrophoneUsageDescription = "Your microphone is streamed to the connected punktfunk host, where it appears as a virtual microphone.";
@@ -502,11 +502,11 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = "App Icon & Top Shelf Image";
 				CODE_SIGN_ENTITLEMENTS = Config/Punktfunk.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = F4H37KF6WC;
 				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = F4H37KF6WC;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = Config/Info.plist;
-				INFOPLIST_KEY_CFBundleDisplayName = "Punktfunk";
+				INFOPLIST_KEY_CFBundleDisplayName = Punktfunk;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Punktfunk connects directly to your punktfunk host on the local network to stream video, audio, and input.";
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
@@ -532,11 +532,11 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = "App Icon & Top Shelf Image";
 				CODE_SIGN_ENTITLEMENTS = Config/Punktfunk.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = F4H37KF6WC;
 				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = F4H37KF6WC;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = Config/Info.plist;
-				INFOPLIST_KEY_CFBundleDisplayName = "Punktfunk";
+				INFOPLIST_KEY_CFBundleDisplayName = Punktfunk;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Punktfunk connects directly to your punktfunk host on the local network to stream video, audio, and input.";
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;

clients/apple/README.md

@@ -1,364 +1,126 @@
-# punktfunk Apple client (SwiftUI)
+# punktfunk — Apple client (macOS · iOS · iPadOS · tvOS)
 
-The native macOS/iOS client for **`punktfunk/1`** (the post-GameStream protocol). All
-networking/protocol work — QUIC control plane, UDP data plane, GF(2¹⁶) FEC, AES-GCM,
-input datagrams, Opus audio, cert pinning — lives in the shared Rust core (statically
-linked as `PunktfunkCore.xcframework`); this package is the Swift shell: decode
-(VideoToolbox), present (SwiftUI), input capture.
+The native **Apple** app for streaming a punktfunk host to your Mac, iPhone, iPad, or Apple TV. A
+SwiftUI app that finds hosts on your network, pairs with a PIN, and streams at your display's own
+resolution and refresh rate — with VideoToolbox hardware decode and full controller support.
 
-## Status — working client (macOS, with iOS / tvOS in the shared build)
+All the networking and protocol work — QUIC control plane, UDP data plane, GF(2¹⁶) FEC, AES-GCM,
+Opus audio, cert pinning — lives in the shared Rust **`punktfunk-core`** (statically linked as
+`PunktfunkCore.xcframework`). This package is the Swift shell: decode, present, input, and UI.
 
-A full streaming client: VideoToolbox HEVC decode, controllers incl. DualSense feedback, host
-discovery, PIN pairing, and a network speed test. The lower-latency **stage-2 presenter**
-(`VTDecompressionSession` → `CAMetalLayer`) is built and opt-in (Settings → Presenter); see below.
+## Features
 
-First light was achieved 2026-06-10 — validated live, Mac ↔ a Linux host over the LAN: gamescope
-virtual output → NVENC HEVC →
-`punktfunk/1` (GF(2¹⁶) FEC + AES-GCM over UDP, QUIC control) → VideoToolbox →
-`AVSampleBufferDisplayLayer` on glass at 1280×720@60, with mouse/keyboard flowing back as
-QUIC datagrams into the host's gamescope EIS injector (thousands of events injected during
-the session). Headless variant of the same proof: `RemoteFirstLightTests` decoded 60/60
-received AUs spanning 983 ms of host capture clock.
+- **Hardware decode** — VideoToolbox HEVC, with a low-latency **stage-2 presenter**
+  (`VTDecompressionSession` → `CAMetalLayer`, presented off a `CADisplayLink`, ~11 ms p50) as the
+  default and an `AVSampleBufferDisplayLayer` fallback.
+- **HDR & 4:4:4** — PQ passthrough with a correct reference-white anchor, mid-session SDR↔HDR
+  reconfiguration, and hardware-probed 4:4:4 support.
+- **Your display's native mode** — the host builds a virtual output at exactly your WxH@Hz;
+  mid-stream resize renegotiates without reconnecting.
+- **Audio both ways** — Opus playback (CoreAudio, no bundled libopus) with a jitter ring, plus mic
+  uplink; speaker/mic selectable in Settings.
+- **Full controller support** — one selected controller forwarded as pad 0, including **DualSense**
+  feedback (rumble → CoreHaptics, lightbar, player LEDs, adaptive triggers) and touchpad/motion. The
+  virtual pad type auto-resolves from your physical controller.
+- **Mouse & keyboard** — `GCMouse`/`GCKeyboard` capture with click-to-capture and a ⌘⎋ release, plus
+  iPad pointer lock and touch input.
+- **Find hosts automatically** — mDNS discovery (`NWBrowser` over `_punktfunk._udp`); first connect
+  does a one-time **SPAKE2 PIN pairing** (or TOFU on trusted LANs), then reconnects on a pinned,
+  Keychain-stored identity.
+- **Tune the stream** — a fps / Mb·s / **latency** HUD (skew-corrected across machines), a bitrate
+  control, a per-host **network speed test** with a recommended bitrate, and a host-compositor picker.
 
-The connector underneath (`punktfunk_core::client::NativeClient` over the C ABI) carries the
-full session: video AUs, **Opus audio** (`nextAudio()`), **rumble** (`nextRumble()`),
-**DualSense feedback** (`nextHidOutput()` — lightbar, player LEDs, adaptive-trigger
-effects), input incl. gamepads + DualSense touchpad/motion (`sendTouchpad`/`sendMotion`),
-and **cert pinning + TOFU** (`pinSHA256:`/`hostFingerprint`) — see
-`punktfunk1.rs::tests::c_abi_connection_roundtrip` (three sequential sessions: TOFU, pinned
-reconnect, wrong-pin rejection). The host (`punktfunk-host punktfunk1-host`) is a persistent listener:
-reconnect at will during development.
+Runs from one shared codebase across **macOS, iOS, iPadOS, and tvOS**.
 
-What's here, all compiled and tested on macOS (Xcode 26.5 / Swift 6.3):
+## Get it
 
-- **`PunktfunkKit`** (library)
-  - `PunktfunkConnection.swift` — wrapper over the C ABI. AUs/audio are copied into `Data`
-    (the C pointer is only valid until the next call of the same kind). `close()` is safe
-    from any thread: per-plane locks enforce the C contract ("never close with a
-    `next_au`/`next_audio` in flight") instead of leaving it to callers. Pinning + TOFU
-    via `pinSHA256:`/`hostFingerprint`.
-  - `AnnexB.swift` — in-band VPS/SPS/PPS → `CMVideoFormatDescription`; Annex-B → AVCC
-    `CMSampleBuffer` with `DisplayImmediately` set.
-  - `StreamView.swift` — SwiftUI `NSViewRepresentable` over `AVSampleBufferDisplayLayer`
-    (stage-1 presenter: the layer hardware-decodes compressed HEVC itself). One pump
-    thread per view, token-cancelled so reconnects can't double-pump.
-  - `InputCapture.swift` — `GCMouse` raw deltas + `GCKeyboard` HID→VK mapping (the host's
-    `vk_to_evdev` consumes Windows VKs), with fractional-delta accumulation so sub-pixel
-    motion isn't truncated away. Buttons use GameStream ids (1=left … 5=X2). Scroll is
-    WHEEL_DELTA(120)-scaled: macOS via the stream view's `scrollWheel` override, iPad via
-    GCMouse's scroll dpad when pointer-locked and a scroll-only `UIPanGestureRecognizer`
-    otherwise (trackpad gestures never reach GC's scroll dpad).
-  - `GamepadManager.swift` — app-lifetime controller discovery + selection (`.shared`):
-    watches `GCController` connect/disconnect, fingerprints each pad for the Settings UI
-    (name, capabilities, battery), and selects the ONE controller forwarded to the host
-    (user pin via "Use controller", else most recently connected extended gamepad).
-  - `GamepadCapture.swift` — the active controller → wire: snapshot-diff over
-    `GCExtendedGamepad` into incremental `gamepadButton`/`gamepadAxis` events (pad 0),
-    plus DualSense touchpad contacts and ~250 Hz motion samples on the rich-input plane
-    (the GC→DualSense unit conversions live in `GamepadWire`, one place). Held state is
-    released on the wire on controller switch / app deactivation / stop.
-  - `GamepadFeedback.swift` + `DualSenseTriggerEffect.swift` — host feedback → the real
-    controller: one drain thread for `nextRumble()` (→ `CHHapticEngine` per handle
-    locality) and `nextHidOutput()` (lightbar → `GCDeviceLight`, player LEDs →
-    `playerIndex`, adaptive-trigger effect blocks → a total, table-driven parser →
-    `GCDualSenseAdaptiveTrigger`, exact for the 10-zone positional modes).
-  - `HostDiscovery.swift` — LAN auto-discovery: an `NWBrowser` over `_punktfunk._udp`
-    (the host's `crate::discovery` mDNS advert), resolving each service to an IP:port via a
-    throwaway `NWConnection` and parsing the TXT (`fp` advisory cert fingerprint, `pair`,
-    stable `id`). iOS/tvOS need `NSBonjourServices` (`Config/Info.plist`) or the system
-    blocks the browse.
-- **`PunktfunkClient`** (the app): hosts grid (saved in UserDefaults) with an **On this
-  network** section listing mDNS-discovered hosts (tap to save + connect, or pair if the
-  host requires it), "+" toolbar sheet to add hosts manually, stream mode in Settings (⌘,),
-  two trust flows — the
-  trust-on-first-use fingerprint prompt over the live-but-blurred stream, and SPAKE2 PIN
-  pairing (`PairSheet`, from a host card's context menu or the trust prompt;
-  `ClientIdentityStore` keeps the client identity in the Keychain and presents it on
-  every connect) — then pinned reconnects, fps/Mb-s HUD + a **capture→client-receipt latency**
-  line (`LatencyMeter`, p50/p95): the AU `pts_ns` (host capture clock) to the instant the client
-  received it, **skew-corrected** across machines via `PunktfunkConnection.clockOffsetNs` (the
-  connect-time wall-clock handshake, `punktfunk_connection_clock_offset_ns`). It excludes the
-  layer's decode+present (stage-1 `AVSampleBufferDisplayLayer` has no per-frame present callback);
-  the opt-in **stage-2 presenter** (Settings → Presenter) adds a **capture→present**
-  (glass-to-glass) line via explicit decode + a Metal/display-link present. Settings also picks the HOST
-  compositor (KWin/wlroots/Mutter/gamescope, default automatic — the host honors it
-  only if that backend is available there) and has a **Controllers** section: every
-  detected controller (capability glyphs, battery, "In use" badge), which one to forward
-  ("Use controller", default automatic), and the virtual pad type the host creates
-  ("Controller type": Automatic / Xbox 360 / DualSense — Automatic matches the physical
-  pad; resolved at connect time, the host pad is fixed per session). Gamepad capture +
-  feedback run with streaming (`SessionModel` owns them, same trust gate as audio).
-  Settings also sets the **Bitrate** (Automatic toggle = host default; manual is a
-  log-scale slider, 2 Mbps – 3 Gbps, snapped to two significant figures — above 1 Gbps
-  an inline warning says to run a speed test first; tvOS uses a preset picker instead,
-  Slider doesn't exist there; negotiated via the Hello on every connect), and a host
-  card's context menu offers **"Test Network Speed…"** (`SpeedTestSheet`): connects, has
-  the host burst probe filler over the real data plane (up to the host's 3 Gbps probe
-  ceiling for 2 s, roadmap §9),
-  shows measured goodput · loss · a recommended bitrate (≈70% of measured), and applies
-  it in one tap. The streaming **statistics overlay** can be turned off and moved to any
-  corner (Settings → Display → Statistics, `DefaultsKey.hudEnabled`/`hudPlacement`), and
-  toggled live with **⌘⇧S** — a Scene-level **"Stream" menu** (`StreamCommands`) that also
-  carries **Disconnect ⌘D**, so disconnect survives the HUD being hidden (on iOS a small
-  exit chip appears instead; on tvOS the Siri-Remote Menu button still disconnects). The
-  macOS Settings window is a **tabbed preferences pane** (General / Display / Audio /
-  Controllers / Advanced) — the sections are shared with the iOS single-Form layout and the
-  tvOS pushed-picker layout, defined once each.
-- **Tests** (`swift test`): byte-level Annex-B units; a real-codec round trip
-  (VTCompressionSession-encoded HEVC rebuilt as the host's wire shape → `AnnexB` →
-  VTDecompressionSession → pixels); table-driven DualSense trigger-effect parsing
-  (`DualSenseTriggerEffectTests`) and the gamepad wire conversions
-  (`GamepadWireTests`); loopback integration against real local hosts
-  (`test-loopback.sh` — stream round trip incl. gamepad/touchpad/motion sends, a
-  host-scripted feedback burst asserted on the rumble + HID-output planes
-  (`PUNKTFUNK_TEST_FEEDBACK=1`), the bitrate-negotiation echo and a real 20 Mbps
-  bandwidth probe, plus the PIN pairing ceremony and the `--require-pairing` gate
-  against a second, armed host); the remote first-light test above.
+Install from the App Store / TestFlight, or build from source below. Per-device install steps and the
+pairing walkthrough:
+**[docs.punktfunk.unom.io/docs/install-client](https://docs.punktfunk.unom.io/docs/install-client)**.
 
 ## Build / run / test (on a Mac)
 
+Requires Xcode 26.5 / Swift 6.3. First build the Rust core into an xcframework, then build the app:
+
 ```sh
 rustup target add aarch64-apple-darwin x86_64-apple-darwin
 bash scripts/build-xcframework.sh            # → clients/apple/PunktfunkCore.xcframework
-# + BUILD_IOS=1 for the iOS slices (rustup target add aarch64-apple-ios{,-sim} x86_64-apple-ios)
-# + BUILD_TVOS=1 for tvOS — TIER-3 Rust targets, built from source:
-#   rustup toolchain install nightly && rustup component add rust-src --toolchain nightly
+#   BUILD_IOS=1  also builds the iOS slices  (add the ios rustup targets)
+#   BUILD_TVOS=1 also builds tvOS            (tier-3 targets, built from source — see below)
+
 cd clients/apple
-swift build && swift test                # loopback/remote tests self-skip without a host
-swift run PunktfunkClient                # the unbundled dev shell (CLI)
 open Punktfunk.xcodeproj                      # the real app: ⌘R builds + runs Punktfunk.app
+swift run PunktfunkClient                     # or the unbundled dev shell (CLI)
+swift build && swift test                     # unit + loopback/remote tests (self-skip w/o a host)
+```
 
-bash test-loopback.sh                    # full loopback proof: builds punktfunk-host
-                                         # (synthetic source — runs on macOS), streams
-                                         # byte-verified frames into the Swift client
+tvOS slices are tier-3 Rust targets, built from source:
+`rustup toolchain install nightly && rustup component add rust-src --toolchain nightly`.
 
-# against the real host (Linux box, see CLAUDE.md "Running on this box") — punktfunk1-host is a
-# persistent listener, reconnect at will:
-#   PUNKTFUNK_COMPOSITOR=gamescope PUNKTFUNK_GAMESCOPE_APP=vkcube PUNKTFUNK_ZEROCOPY=1 \
-#   cargo run -rp punktfunk-host -- punktfunk1-host --source virtual --seconds 60
+### Test against a host
+
+```sh
+# full loopback proof — builds punktfunk-host (synthetic source, runs on macOS) and streams
+# byte-verified frames into the Swift client, incl. the PIN pairing ceremony:
+bash test-loopback.sh
+
+# against a real Linux host on the LAN (see the repo README "Running on this box"):
 PUNKTFUNK_REMOTE_HOST=<box-ip> swift test --filter RemoteFirstLightTests            # headless
-#   (+ PUNKTFUNK_REMOTE_PORT / PUNKTFUNK_REMOTE_COMPOSITOR=gamescope|kwin|… /
-#    PUNKTFUNK_REMOTE_PIN=<arming-pin> for the remote pairing test)
 PUNKTFUNK_AUTOCONNECT=<box-ip> PUNKTFUNK_MODE=1280x720x60 swift run PunktfunkClient # on glass
 ```
 
-## Xcode project (`Punktfunk.xcodeproj`)
+## Project layout
 
-The app target **Punktfunk** wraps the same sources as the `swift run` shell
-(`Sources/PunktfunkClient`, a synchronized folder — no duplication) plus `App/` (asset
-catalog) and links `PunktfunkKit` from the local package. Generated Info.plist, ad-hoc
-signing, bundle id `io.unom.punktfunk`. Notes:
+- **`PunktfunkKit`** (library) — the reusable pieces:
+  - `PunktfunkConnection` — the wrapper over the C ABI (thread-safe `close()`, per-plane locks,
+    pinning + TOFU).
+  - `AnnexB` / `StreamView` / `VideoDecoder` / `MetalVideoPresenter` — format handling, the stage-1
+    (`AVSampleBufferDisplayLayer`) and stage-2 (`VTDecompressionSession` → `CAMetalLayer`) presenters.
+  - `InputCapture` — `GCMouse`/`GCKeyboard` → host VK/mouse, with fractional-delta accumulation.
+  - `GamepadManager` / `GamepadCapture` / `GamepadFeedback` / `DualSenseTriggerEffect` — controller
+    discovery + selection, capture (buttons/axes/touchpad/motion), and host-feedback rendering.
+  - `HostDiscovery` — `NWBrowser` over `_punktfunk._udp`.
+- **`PunktfunkClient`** (the app) — hosts grid with an *On this network* section, add-host sheet,
+  the two trust flows (TOFU prompt + SPAKE2 `PairSheet`), the stream view with the HUD, a
+  tabbed Settings pane (General / Display / Audio / Controllers / Advanced), and the network speed
+  test. A Scene-level **Stream** menu carries Disconnect (⌘D) and the HUD toggle (⌘⇧S).
+  On iOS/iPadOS **and macOS** a connected controller swaps the whole home for the **gamepad UI**
+  (`Home/Gamepad*`, `Settings/GamepadSettingsView`): a console-style host carousel (A connect · Y
+  library · X settings), a controller-navigable settings screen, an add-host flow with an
+  on-screen controller keyboard (no touch required anywhere), and the coverflow library browser —
+  all driven by the shared `GamepadMenuInput` poller + `GamepadCarousel`/`GamepadMenuList` focus
+  machinery, with dual-channel haptics (device Taptic + controller `MenuHaptics`), over an
+  animated "aurora" backdrop (`GamepadScreenBackground` — TimelineView-driven drifting color
+  blobs; deliberately pure SwiftUI, since a .metal library only reliably bundles in one of the
+  two build systems these sources compile under). macOS presents the settings/add-host screens as
+  sheets (no `fullScreenCover` there); `PUNKTFUNK_FORCE_GAMEPAD_UI=1` forces the mode without a
+  physical pad (dev/screenshots).
+- **Tests** (`swift test`) — Annex-B units, a real-codec VideoToolbox round trip, DualSense
+  trigger-effect and gamepad-wire conversions, loopback integration against real local hosts, and the
+  remote first-light test.
 
-- **Entitlements (sandbox)**: the macOS target uses
-  `Config/Punktfunk-macOS.entitlements`; iOS/tvOS use the shared
-  `Config/Punktfunk.entitlements`. The macOS app is **App-Sandboxed** (mandatory for the Mac
-  App Store/TestFlight, and used for the Developer ID DMG too so the local build matches what
-  ships): `com.apple.security.app-sandbox`, `network.client` + **`network.server`** (the
-  sandbox gates `bind()`; quinn + the raw-UDP plane both bind, so receive breaks without it),
-  `device.audio-input` (mic), `device.bluetooth` + `device.usb` (GameController over BT/USB),
-  and the existing `keychain-access-groups`. `app-sandbox` is macOS-only — keep it OUT of the
-  shared iOS/tvOS file (it fails upload validation there). Verify a build is sandboxed with
-  `codesign -d --entitlements :- <built .app>`. Heads-up: `device.usb` draws some App Review
-  scrutiny — justify it in the review notes ("reads input from USB game controllers").
-- **App icon**: `App/Assets.xcassets` ships an empty `AppIcon` slot. For an Icon Composer
-  `.icon`: add the file to the project (target Punktfunk), set it as the App Icon in the
-  target's General tab, and delete the placeholder `AppIcon.appiconset`. Heads-up: CLI
-  `actool` (Xcode 26.5) crashed compiling `punktfunk_Logo.icon` — if Xcode does the same,
-  suspect the icon bundle (it has a duplicate-named layer, "…Layer-3 2.svg"), not the
-  project.
-- **Tests from Xcode**: the package tests run with `swift test`; to get them on ⌘U, add
-  `PunktfunkKitTests` once via Edit Scheme → Test → + (Xcode persists it into the shared
-  scheme — a hand-written package-test reference doesn't resolve headlessly).
-- `xcodebuild -project Punktfunk.xcodeproj -scheme Punktfunk build` works headlessly;
-  same for `-scheme Punktfunk-iOS -destination 'generic/platform=iOS Simulator'` (run it
-  in a simulator via `xcrun simctl install/launch` — `SIMCTL_CHILD_PUNKTFUNK_AUTOCONNECT=…`
-  passes the dev autoconnect env through).
+## Notes for contributors
 
-## App Store screenshots
+- **Xcode project** (`Punktfunk.xcodeproj`) wraps the same sources as the `swift run` shell (a
+  synchronized folder — no duplication). The macOS target is **App-Sandboxed** (needs
+  `network.server` — the raw-UDP plane and quinn both `bind()`); iOS/tvOS use the shared
+  entitlements file (keep `app-sandbox` **out** of it). Verify with
+  `codesign -d --entitlements :- <built .app>`.
+- **Decode flow**: the host opens every stream with an IDR carrying VPS/SPS/PPS in-band, and recovery
+  keyframes re-send them — refresh the format description on every IDR; there is no out-of-band
+  extradata, ever.
+- **ABI threading**: one video pump thread per connection, one optional audio drain thread, and one
+  optional feedback drain thread (rumble + HID-output). `send()` is enqueue-only and safe alongside
+  all of them. The wrapper's per-plane locks make `close()` safe from anywhere.
+- **DualSense motion scale** (`GamepadWire`) is derived from hid-playstation's math, not yet
+  live-verified — if gyro/accel feel wrong in a game, correct sign/scale there and `evtest` the
+  host's virtual pad.
+- **App Store screenshots** are automated — `tools/screenshots.sh all` renders the real UI at the
+  required pixel sizes via a DEBUG-only shot mode; the `apple` CI workflow captures the iOS sizes on
+  every main push. See the script header for details.
+- Deeper design notes live in [`design/apple-stage2-presenter.md`](../../design/apple-stage2-presenter.md).
 
-Automated, faithful screenshots of the real UI for App Store Connect — one set per platform at
-exactly the accepted pixel sizes. Driver: **`tools/screenshots.sh`**.
+## Related
 
-```sh
-tools/screenshots.sh all                 # macOS + (if full Xcode) iOS, iPadOS, tvOS → ./screenshots
-tools/screenshots.sh macos               # just macOS
-OUT=~/Desktop/shots tools/screenshots.sh ios ipad tvos
-PUNKTFUNK_SHOT_HERO=~/frame.png tools/screenshots.sh ios   # real captured frame behind the hero
-```
-
-How it works: the app has a DEBUG-only **shot mode** (`Sources/PunktfunkClient/Screenshots/`).
-Launched with `PUNKTFUNK_SHOT_SCENE=<name>` it renders **one** mock-populated screen full-bleed
-(`ScreenshotHostView`) instead of `ContentView`, then the OS screenshots the *real, fully-rendered*
-window — `screencapture` on macOS, `xcrun simctl io booted screenshot` on the Simulators. The five
-scenes (`ShotScenes.all`): `01-stream` (the stream hero — a synthetic frame + the glass HUD, since
-`StreamView` needs a live connection), `02-hosts`, `03-pair`, `04-trust`, `05-settings`. Mock data
-is in `ShotMock`; nothing touches a host.
-
-Output pixels are App Store Connect's required/largest sizes (Apple auto-derives the smaller ones):
-`mac` 2880×1800 · `iphone-6.9` 1320×2868 (hero 2868×1320) · `ipad-13` 2064×2752 (hero 2752×2064) ·
-`appletv` 1920×1080.
-
-Why not `ImageRenderer` (the obvious offscreen route)? It can't rasterize this app's chrome —
-`NavigationStack`, `Form`/`TabView`, and Liquid-Glass/`NSVisualEffect` materials all render black or
-SwiftUI's "can't render" placeholder. Capturing the live window/Simulator avoids that entirely.
-
-Requirements / gotchas:
-- **macOS**: only the Swift toolchain is needed, **plus a one-time Screen Recording grant** for
-  your terminal (System Settings → Privacy & Security → Screen Recording) — without it
-  `screencapture -l` fails with "could not create image from window". (A no-permission fallback,
-  `PUNKTFUNK_SHOT_SELFCAPTURE=<dir>`, uses `cacheDisplay` — but it omits material blur and can't
-  read `ScrollView` content, so it's for quick checks, not submission.)
-- **iOS/iPadOS/tvOS**: needs **full Xcode** (xcodebuild + Simulators), not just Command Line Tools,
-  and the matching device Simulators installed (iPhone 16 Pro Max, iPad Pro 13", Apple TV). Run it
-  on a full-Xcode Mac (e.g. the `macos-arm64` CI mini).
-- The hero defaults to a synthetic synthwave frame — set `PUNKTFUNK_SHOT_HERO` to a real captured
-  frame for a production-quality lead screenshot.
-
-**CI**: the `apple` workflow's **`screenshots`** job runs on the `macos-arm64` runner on every main
-push + manual dispatch (skipped on PRs), and attaches the result as a single zip artifact,
-**`punktfunk-appstore-screenshots`** (download it from the run's Artifacts; `upload-artifact@v3` —
-Gitea's backend rejects v4). It captures the two **required iOS sizes — iPhone 6.9" + iPad 13"** —
-on the Simulator (auto-creating the device if the runner lacks it), and is isolated from the
-build/test job so a capture hiccup never reds the build.
-
-**macOS and tvOS are NOT in CI**, by design: the self-hosted runner is **headless** (no
-window-server session), so the macOS window capture can't run there, and tvOS needs the Tier-3
-build-std slice. Generate those on a GUI Mac: `tools/screenshots.sh macos tvos`. (If the runner is
-ever switched to a logged-in GUI session, re-adding macOS to the job's capture step is one line.)
-
-## Notes for whoever picks this up next
-
-1. **cbindgen import quirk** (the predicted "small compile fixes", now fixed): the
-   C17-compatible header spells `PunktfunkStatus`/`PunktfunkInputKind` as integer typedefs while
-   the enum *constants* import into Swift as a distinct same-named type — bridge with
-   `.rawValue` (see the top of `PunktfunkConnection.swift`). Don't fight the generated header.
-2. **ABI contract**: one video pump thread per connection, plus optionally one *separate*
-   audio drain thread for `nextAudio()` and one feedback drain thread for
-   `nextRumble()`/`nextHidOutput()` (the core keeps per-plane borrow slots, so the planes
-   never alias; rumble + HID-output are two planes drained sequentially by the one
-   feedback thread); `send()` is enqueue-only and safe alongside all of them. The
-   wrapper's per-plane locks make `close()` safe from anywhere (it waits out in-flight
-   polls, ≤ their timeouts).
-3. **Decode flow**: the host opens every stream with an IDR carrying VPS/SPS/PPS in-band
-   and recovery keyframes re-send them — "refresh the format description on every IDR"
-   (what `StreamView` does) is sufficient; there is no out-of-band extradata, ever.
-4. **Stage 2 — built, opt-in (`punktfunk.presenter == "stage2"`, default stage 1).** Explicit
-   `VTDecompressionSession` decode (`VideoDecoder`) → a `CAMetalLayer` + display-link present
-   (`MetalVideoPresenter`/`Stage2Pipeline`), hosted as a sublayer by the same `StreamView`s with
-   input capture + HUD unchanged. It adds a **capture→present** (glass-to-glass, modulo the host
-   render→capture term) HUD line, skew-corrected via `PunktfunkConnection.clockOffsetNs`. The
-   decode half is unit-tested (`testVideoDecoderAsyncCallbackDeliversPixels`); the Metal present
-   is display-bound — **validate live** (flip the Settings "Presenter" picker, watch the HUD
-   number and that the image looks right) before making it the default. 10-bit/HDR + a smoothing
-   pacer are later. Plan: `docs-site/content/docs/apple-stage2-presenter.md`.
-5. **Audio — wired, both directions.** Playback: `SessionAudio` drains `nextAudio()`
-   on its own thread, decodes through CoreAudio's built-in Opus codec (`OpusCodec.swift`
-   — kAudioFormatOpus, no bundled libopus; round-trip unit-tested) into a priming
-   jitter ring feeding an `AVAudioSourceNode`. Mic: a second engine taps the input
-   device, resamples to 48 kHz stereo, Opus-encodes 20 ms chunks and `sendMic()`s them
-   (the host's virtual PipeWire source accepts any frame size ≤ 120 ms). Speaker/mic
-   are chosen in Settings (`AudioDevices.swift` — persisted by UID; "System default"
-   leaves the engines unpinned so they follow macOS device changes), mic on/off toggle
-   included; the app asks for mic permission on first use
-   (NSMicrophoneUsageDescription is in the Xcode target). A/V sync and packet-loss
-   concealment beyond silence-fill are still open (AudioPacket.seq/ptsNs carry what's
-   needed). Decode with libopus or `AVAudioConverter`/`kAudioFormatOpus` into an
-   `AVAudioEngine` source node; conceal gaps (drop/dup) rather than blocking — the Rust
-   side buffers 320 ms and drops the newest packet when the puller lags. Wall-clock
-   `ptsNs` shares the host clock with video AUs for A/V sync. Wiring this into
-   `PunktfunkClient` is the next app-side task.
-6. **Gamepads — wired end to end.** Exactly ONE controller (the `GamepadManager`
-   selection) forwards as pad 0; the host accumulates the incremental events into a
-   virtual pad whose TYPE the client negotiates in the Hello (`gamepad:` connect
-   parameter, echoed resolved in `resolvedGamepad` — Automatic resolves from the physical
-   pad at connect time; host precedence: explicit client choice > host `PUNKTFUNK_GAMEPAD`
-   env > Xbox 360). A DualSense session carries the full feel: adaptive-trigger blocks
-   (`DualSenseTriggerEffect.parse` — mode bytes per the community convention
-   (Nielk1/ds5w/inputtino), total, unknown → `.off`), lightbar, player LEDs, touchpad,
-   motion. **Motion scale constants** (`GamepadWire.gyroLSBPerRadS` = 20 LSB per deg/s,
-   `accelLSBPerG` = 10000) are derived from hid-playstation's math over the host's fixed
-   calibration blob, not yet live-verified — if gyro/accel feel wrong in a real game,
-   correct sign/scale in `GamepadCapture.forwardMotion`/`GamepadWire` and `evtest` the
-   host's virtual pad. Twin identical controllers share a fingerprint base, so a manual
-   pin can swap between them across reconnects (documented in the Settings footer).
-7. **Trust — the full ceremony exists now (SPAKE2).** `generateIdentity()` once (persist
-   both PEMs in the Keychain), then `pair(host:identity:pin:name:)` with the 4-digit PIN
-   the host prints when it ARMS pairing (`--allow-pairing`/`--require-pairing`; one PIN
-   per arming window, surfaced in the host's web console — port 3000 → Pairing — and
-   printed at startup; the user reads it before pairing). Returns the
-   host's VERIFIED fingerprint; persist it and pass `pinSHA256:` + `identity:` to every
-   connect. Pairing is a real PAKE: a wrong PIN gets ONE online guess (no offline
-   dictionary attack), throwing `.wrongPIN`; a wrong-size pin throws `.invalidPin`. `PunktfunkClient` implements both flows:
-   the TOFU fingerprint sheet keeps working against hosts not running
-   `--require-pairing`, and the PIN ceremony is wired in — `ClientIdentityStore`
-   (Keychain) on every connect, `PairSheet` from a host card's context menu or the trust
-   prompt's "Pair with PIN instead…" (the host's accept loop is sequential, so that path
-   drops the live session before pairing). With `--require-pairing` the host now
-   authorizes clients too (the "other direction" is no longer open, opt-in per host);
-   the whole gate is regression-tested in `testPairingCeremonyAndRequirePairingGate`.
-7b. **Resize without reconnect**: `requestMode(width:height:refreshHz:)` mid-stream —
-   the host rebuilds at the new mode in ~90 ms; the first new-mode AU is an IDR with
-   fresh parameter sets (the refresh-on-IDR decode flow handles it untouched) and
-   `currentMode()` reflects the switch. Wire it to window-resize events.
-8. **Input capture** (stage 1): capture is a deliberate, reversible STATE owned by
-   `StreamLayerView`, Moonlight-style. Engaged when the stream starts / trust is
-   confirmed and when the user clicks into the video (that click is suppressed toward
-   the host); released by ⌘⎋ (toggles) or focus loss; NEVER engaged by mere app
-   activation — activating clicks may be title-bar drags or resizes, which used to get
-   their cursor warped away mid-drag. While captured: the local cursor is hidden +
-   frozen mid-view (the host renders its own), all input is forwarded, and the view
-   consumes key events as first responder so unhandled keyDowns don't beep — ⌘-combos
-   still work locally (⌘D disconnect, ⌘Q) *and* reach the host via GC. While released:
-   nothing is forwarded (`InputCapture.forwarding` gates the GC handlers; held
-   keys/buttons are flushed host-side on release so nothing sticks down), the cursor is
-   free, and the HUD shows "Click the stream to capture input". GC handlers only fire
-   while the app has focus, and focus loss also auto-releases everything held. One live capture per process (the GC
-   mouse/keyboard singletons have a single handler slot — ownership is tracked so a stale
-   capture's stop() can't clobber a newer one).
-9. **iOS/iPadOS — ported and first-lit** (iPad simulator ↔ the real host, 60 fps).
-   `BUILD_IOS=1 bash scripts/build-xcframework.sh` builds device + universal-simulator
-   slices; the Xcode project has a second target, **Punktfunk-iOS**, sharing the same
-   synchronized sources. The iOS `StreamView` (StreamViewIOS.swift — same name/signature
-   as the macOS one, so the SwiftUI shell is identical) hosts the shared `StreamPump` in
-   a view controller for `prefersPointerLocked`: with a hardware mouse/trackpad that is
-   the iPadOS cursor capture (system honors it fullscreen-and-frontmost; in Stage
-   Manager it degrades to absolute-mouse forwarding). Input is routed by kind: DIRECT
-   fingers / Pencil are touches (each gets a wire touch id, coordinates mapped through the
-   aspect-fit letterbox into host-mode pixels — surface == host mode, so the host rescale is
-   the identity), while a mouse/trackpad is a MOUSE — pointer-LOCKED it is GCMouse relative
-   deltas; unlocked it is absolute moves + buttons + scroll over the UIKit pointer path
-   (hover + `.indirectPointer` touches), the local cursor staying visible so you can aim. An
-   indirect pointer is never sent as a touch. Touch is gated on trust (not forwarded under
-   the TOFU prompt), and returning to the foreground restores the capture you had on leaving.
-   `InputCapture` is cross-platform (GC works the same on iPadOS; ⌘⎋ is detected from
-   the HID stream there); audio routes via `AVAudioSession` (the Settings device
-   pickers are macOS-only). For the iPad-with-external-display setup: the target
-   enables multiple scenes + indirect input events — on Stage Manager iPads, drag the
-   punktfunk window onto the external screen and the stream runs there with full
-   keyboard/mouse/touch. While streaming the session is immersive (edge-to-edge,
-   status bar + home indicator hidden) and the iPadOS cursor is hidden over the video only
-   while the scene is actually pointer-LOCKED (`UIPointerInteraction` `.hidden()`); when the
-   lock isn't held it stays visible and the mouse forwards as an absolute cursor instead; on
-   iOS first run the stream mode defaults to the device's native screen so the video
-   fills the display. **tvOS** runs the same app (target **Punktfunk-tvOS**, first-lit
-   in the Apple TV simulator at 720p60): playback-only audio (no mic on tvOS),
-   focus-driven UI (`.card` host tiles), no kb/mouse capture yet — input lands with
-   gamepad support, the natural tvOS input anyway. While streaming there is NO focusable
-   control (a focusable Disconnect button would let the focus engine eat the controller's A
-   before the host sees it); the Siri Remote's **Menu** button disconnects (`.onExitCommand`).
-   Core slices are tier-3 Rust targets (see Build above). Known gaps: true pointer LOCK (`prefersPointerLocked`) isn't
-   consulted through UIHostingController, so the hidden cursor can still drift onto a
-   second screen (fixing it means putting the controller into the UIKit presentation
-   chain); and
-   AVAudioSession interruptions (calls, Siri) don't auto-restart the audio engines yet
-   (reconnect recovers).
-
-## Known limitations of the current host (relevant to client UX)
-
-- One session **at a time** (the listener is persistent, but a second concurrent client
-  waits in the accept queue until the current session ends — the virtual output and
-  encoder are single-tenant).
-- Mid-stream renegotiation (resolution change without reconnect) is designed-for but not
-  implemented (the Welcome is one-shot today).
-- Host-side gamepad injection needs `/dev/uinput` access on the box (udev rule from
-  `design/linux-setup.md`).
+- **[Documentation](https://docs.punktfunk.unom.io)** — quick start, pairing, troubleshooting
+- **[Project README](../../README.md)** — the host, the other clients, and how it all fits together

clients/apple/Sources/PunktfunkClient/ContentView.swift

@@ -28,10 +28,20 @@ struct ContentView: View {
     @AppStorage(DefaultsKey.gamepadType) private var gamepadType = 0
     @AppStorage(DefaultsKey.bitrateKbps) private var bitrateKbps = 0
     @AppStorage(DefaultsKey.audioChannels) private var audioChannels = 2
+    @AppStorage(DefaultsKey.codec) private var codec = "auto"
     @AppStorage(DefaultsKey.hdrEnabled) private var hdrEnabled = true
     @AppStorage(DefaultsKey.fullscreenWhileStreaming) private var fullscreenWhileStreaming = true
     @AppStorage(DefaultsKey.hudEnabled) private var hudEnabled = true
     @AppStorage(DefaultsKey.hudPlacement) private var hudPlacement = HUDPlacement.topTrailing.rawValue
+    /// The `codec` setting as a `PUNKTFUNK_CODEC_*` soft-preference byte (`0` = auto).
+    private var preferredCodecByte: UInt8 {
+        switch codec {
+        case "h264": return PunktfunkConnection.codecH264
+        case "hevc": return PunktfunkConnection.codecHEVC
+        case "av1": return PunktfunkConnection.codecAV1
+        default: return 0
+        }
+    }
     @State private var showAddHost = false
     @State private var pairingTarget: StoredHost?
     /// A fresh `pair=required`/unknown host the user tapped: drives the choice between no-PIN
@@ -45,6 +55,16 @@ struct ContentView: View {
     #if !os(macOS)
     @State private var showSettings = false
     #endif
+    #if os(iOS) || os(macOS)
+    // A connected controller (+ the Settings toggle) swaps the whole home screen for
+    // GamepadHomeView instead of retrofitting HomeView's touch/desktop UI — see `home` below.
+    @ObservedObject private var gamepadManager = GamepadManager.shared
+    @AppStorage(DefaultsKey.gamepadUIEnabled) private var gamepadUIEnabled = true
+    private var gamepadUIActive: Bool {
+        GamepadUIEnvironment.isActive(
+            gamepadConnected: gamepadManager.active != nil, enabledSetting: gamepadUIEnabled)
+    }
+    #endif
 
     var body: some View {
         Group {
@@ -114,11 +134,27 @@ struct ContentView: View {
         .sheet(item: $speedTestTarget) { host in
             SpeedTestSheet(host: host)
         }
+        // The library is a full-screen presentation, not a sheet: on iPad a sheet is a centered page
+        // card, but the gamepad coverflow is meant to be an immersive, full-bleed screen (and the
+        // launcher behind it stops consuming the controller — see GamepadHomeView's `isActive`).
+        // macOS has no `fullScreenCover`, so it keeps the sheet there — with an explicit size: a
+        // macOS sheet takes its content's IDEAL size, and both library layouts are geometry-driven
+        // (the coverflow is a GeometryReader, ideal ≈ zero), so without a frame it collapses to a
+        // tiny panel.
+        #if os(macOS)
         .sheet(item: $libraryTarget) { host in
             NavigationStack {
                 LibraryView(store: store, host: host, onLaunch: { launchTitle(host, $0) })
             }
+            .frame(minWidth: 940, minHeight: 620)
         }
+        #else
+        .fullScreenCover(item: $libraryTarget) { host in
+            NavigationStack {
+                LibraryView(store: store, host: host, onLaunch: { launchTitle(host, $0) })
+            }
+        }
+        #endif
         #endif
         // Fresh pair=required / unknown host: offer the two ways in. An action sheet (not an
         // alert) so it never collides with the wait alert below. "Request Access" is the no-PIN
@@ -144,6 +180,18 @@ struct ContentView: View {
                 + "device in the host's web console (port 3000 → Pairing) — no PIN needed. Or "
                 + "pair with the 4-digit PIN it can display.")
         }
+        // One "Connection failed" surface for every home screen (touch grid, gamepad launcher) and
+        // platform — SessionModel funnels all connect/session errors into `errorMessage`.
+        .alert(
+            "Connection failed",
+            isPresented: Binding(
+                get: { model.errorMessage != nil },
+                set: { if !$0 { model.errorMessage = nil } })
+        ) {
+            Button("OK", role: .cancel) {}
+        } message: {
+            Text(model.errorMessage ?? "")
+        }
         // The delegated-approval wait: the host holds the connection open until the operator
         // approves it. Cancel returns the UI at once; the in-flight connect is left to time out
         // and its late result is discarded by SessionModel's connect guard (disconnect resets the
@@ -165,12 +213,38 @@ struct ContentView: View {
 
     private var home: some View {
         #if os(macOS)
+        Group {
+            if gamepadUIActive {
+                GamepadHomeView(
+                    store: store, model: model, discovery: discovery,
+                    libraryTarget: $libraryTarget,
+                    connect: { connect($0) }, connectDiscovered: connectDiscovered)
+            } else {
                 HomeView(
                     store: store, model: model, discovery: discovery,
                     showAddHost: $showAddHost, pairingTarget: $pairingTarget,
                     speedTestTarget: $speedTestTarget, libraryTarget: $libraryTarget,
                     connect: { connect($0) }, connectDiscovered: connectDiscovered,
                     onPaired: handlePaired, onLaunchTitle: launchTitle)
+            }
+        }
+        #elseif os(iOS)
+        Group {
+            if gamepadUIActive {
+                GamepadHomeView(
+                    store: store, model: model, discovery: discovery,
+                    libraryTarget: $libraryTarget,
+                    connect: { connect($0) }, connectDiscovered: connectDiscovered)
+            } else {
+                HomeView(
+                    store: store, model: model, discovery: discovery,
+                    showAddHost: $showAddHost, pairingTarget: $pairingTarget,
+                    speedTestTarget: $speedTestTarget, libraryTarget: $libraryTarget,
+                    showSettings: $showSettings,
+                    connect: { connect($0) }, connectDiscovered: connectDiscovered,
+                    onPaired: handlePaired, onLaunchTitle: launchTitle)
+            }
+        }
         #else
         HomeView(
             store: store, model: model, discovery: discovery,
@@ -252,14 +326,21 @@ struct ContentView: View {
                     onCaptureChange: { [weak model] captured in
                         model?.mouseCaptured = captured
                     },
-                    onFrame: { [meter = model.meter, latency = model.latency, offset = conn.clockOffsetNs] au in
+                    onFrame: { [meter = model.meter, latency = model.latency,
+                                split = model.latencySplit, offset = conn.clockOffsetNs] au in
                         meter.note(byteCount: au.data.count)
                         latency.record(ptsNs: au.ptsNs, offsetNs: offset)
+                        // The same receipt, keyed by pts, awaiting its 0xCF host timing (the
+                        // host/network split — drained by the 1 s stats tick).
+                        split.recordReceipt(
+                            ptsNs: au.ptsNs, receivedNs: au.receivedNs, offsetNs: offset)
                     },
                     onSessionEnd: { [weak model] in
                         Task { @MainActor in model?.sessionEnded() }
                     },
-                    presentMeter: model.presentLatency
+                    endToEndMeter: model.endToEnd,
+                    decodeMeter: model.decodeStage,
+                    displayMeter: model.displayStage
                 )
                 .overlay(alignment: placement.alignment) {
                     if captureEnabled && hudEnabled {
@@ -339,6 +420,7 @@ struct ContentView: View {
             bitrateKbps: UInt32(clamping: bitrateKbps),
             audioChannels: UInt8(clamping: audioChannels),
             hdrEnabled: hdrEnabled,
+            preferredCodec: preferredCodecByte,
             launchID: launchID,
             allowTofu: allowTofu,
             requestAccess: requestAccess)
@@ -482,6 +564,7 @@ struct ContentView: View {
             bitrateKbps: bitrate,
             audioChannels: UInt8(clamping: audioChannels),
             hdrEnabled: hdrEnabled,
+            preferredCodec: preferredCodecByte,
             autoTrust: true)
     }
 }
@@ -514,23 +597,3 @@ private struct ApprovalRequest {
     let host: StoredHost
     let advertisedFingerprint: Data?
 }
-
-private extension Data {
-    /// Parse an even-length hex string into bytes; nil on any non-hex character or odd length.
-    /// Used to turn an mDNS-advertised cert fingerprint into a connect pin.
-    init?(hexString: String) {
-        let chars = Array(hexString)
-        guard chars.count.isMultiple(of: 2) else { return nil }
-        var bytes = [UInt8]()
-        bytes.reserveCapacity(chars.count / 2)
-        var i = 0
-        while i < chars.count {
-            guard let hi = chars[i].hexDigitValue, let lo = chars[i + 1].hexDigitValue else {
-                return nil
-            }
-            bytes.append(UInt8(hi << 4 | lo))
-            i += 2
-        }
-        self = Data(bytes)
-    }
-}

clients/apple/Sources/PunktfunkClient/Home/GamepadAddHostView.swift

@@ -0,0 +1,234 @@
+// The gamepad-driven "Add Host" screen (iOS/iPadOS/macOS) — the controller counterpart of
+// AddHostSheet, reached from the launcher's Add Host tile. Three field rows (name / address /
+// port) plus the Add action, navigated with the same vertical focus list as the gamepad settings;
+// A on a field opens GamepadKeyboard in a bottom tray, so a host can be registered end to end
+// without touching the screen. Field edits are live (the row shows every keystroke); B closes the
+// keyboard first, then cancels the screen — the same "back peels one layer" rule as a console UI.
+
+import PunktfunkKit
+import SwiftUI
+#if os(iOS) || os(macOS)
+
+struct GamepadAddHostView: View {
+    @Environment(\.dismiss) private var dismiss
+    let onAdd: (StoredHost) -> Void
+
+    #if os(iOS)
+    /// `.compact` in a landscape phone window — tighter chrome so the keyboard tray still fits.
+    @Environment(\.verticalSizeClass) private var vSizeClass
+
+    private var compact: Bool { vSizeClass == .compact }
+    #else
+    private let compact = false // no size classes on macOS; the sheet is sized to fit the tray
+    #endif
+    @State private var name = ""
+    @State private var address = ""
+    @State private var port = "9777"
+    @State private var focusID: String?
+    /// The field row the keyboard tray is editing; nil ⇒ the row list owns the controller.
+    @State private var editing: String?
+
+    var body: some View {
+        GamepadMenuList(
+            items: rows,
+            focusID: $focusID,
+            onActivate: { activate(id: $0.id) },
+            onBack: { dismiss() },
+            isActive: editing == nil
+        ) { row, focused in
+            rowView(row, focused: focused)
+                .frame(maxWidth: 620)
+                .padding(.horizontal, 24)
+        }
+        .frame(maxWidth: .infinity)
+        .safeAreaInset(edge: .top, spacing: 0) {
+            VStack(spacing: 4) {
+                Text("Add Host")
+                    .font(.geist(compact ? 20 : 30, .bold, relativeTo: .title))
+                    .foregroundStyle(.white)
+                if !compact {
+                    Text("Hosts on this network appear automatically — add one by address "
+                        + "for everything else.")
+                        .font(.geist(13, relativeTo: .caption))
+                        .foregroundStyle(.white.opacity(0.55))
+                        .multilineTextAlignment(.center)
+                        .frame(maxWidth: 440)
+                }
+            }
+            .padding(.top, gamepadTitleTopPadding(compact: compact))
+            .padding(.bottom, compact ? 4 : 8)
+            .frame(maxWidth: .infinity)
+            .overlay(alignment: .topTrailing) { closeButton.padding(.trailing, 20) }
+            .background { GamepadTrayScrim(edge: .top) }
+        }
+        .safeAreaInset(edge: .bottom, spacing: 0) {
+            bottomTray
+                .padding(.horizontal, 22)
+                .padding(.vertical, compact ? 6 : 10)
+                .background { GamepadTrayScrim(edge: .bottom) }
+        }
+        .background { GamepadScreenBackground() }
+        // A port can't exceed 5 digits — cap while typing so the row can't grow absurd.
+        .onChange(of: port) { _, value in
+            if value.count > 5 { port = String(value.prefix(5)) }
+        }
+    }
+
+    /// The keyboard tray while editing, the controls legend otherwise.
+    @ViewBuilder private var bottomTray: some View {
+        if let editing {
+            VStack(spacing: 10) {
+                GamepadKeyboard(
+                    text: editingBinding(editing),
+                    allowed: allowedCharacters(editing),
+                    onDone: { closeKeyboard() })
+                    // Fresh keyboard per field: a touch user can retarget the tray by tapping
+                    // another field row, and the keyboard's input wiring captured the previous
+                    // binding on appear — new identity forces a rewire to the new field.
+                    .id(editing)
+                GamepadHintBar(hints: [
+                    .init(glyph: buttonGlyph(\.buttonA, fallback: "a.circle"), text: "Type"),
+                    .init(glyph: buttonGlyph(\.buttonX, fallback: "x.circle"), text: "Delete"),
+                    .init(glyph: buttonGlyph(\.buttonB, fallback: "b.circle"), text: "Done"),
+                ])
+                .frame(maxWidth: .infinity, alignment: .leading)
+            }
+            .transition(.move(edge: .bottom).combined(with: .opacity))
+        } else {
+            GamepadHintBar(hints: [
+                .init(glyph: buttonGlyph(\.buttonA, fallback: "a.circle"), text: "Select"),
+                .init(glyph: buttonGlyph(\.buttonB, fallback: "b.circle"), text: "Cancel"),
+            ])
+            .frame(maxWidth: .infinity, alignment: .leading)
+        }
+    }
+
+    /// Touch/click fallback for closing — the controller path is B, a hardware keyboard's Esc
+    /// rides the cancel action.
+    private var closeButton: some View {
+        Button { dismiss() } label: {
+            Image(systemName: "xmark")
+                .font(.system(size: 14, weight: .semibold))
+                .foregroundStyle(.white)
+                .frame(width: 34, height: 34)
+                .glassBackground(Circle(), interactive: true)
+                .contentShape(Circle())
+        }
+        .buttonStyle(.plain)
+        .keyboardShortcut(.cancelAction)
+        .accessibilityLabel("Cancel")
+    }
+
+    // MARK: - Rows
+
+    private struct Row: Identifiable {
+        let id: String
+        let label: String
+        var value = ""
+        var placeholder = ""
+        var isAction = false
+    }
+
+    private var rows: [Row] {
+        [
+            Row(id: "name", label: "Name", value: name, placeholder: "Optional — e.g. Living Room"),
+            Row(id: "address", label: "Address", value: address, placeholder: "IP or hostname"),
+            Row(id: "port", label: "Port", value: port, placeholder: "9777"),
+            Row(id: "add", label: "Add Host", isAction: true),
+        ]
+    }
+
+    private func rowView(_ row: Row, focused: Bool) -> some View {
+        HStack(spacing: 14) {
+            if row.isAction {
+                Label("Add Host", systemImage: "plus.circle.fill")
+                    .font(.geist(16, .semibold, relativeTo: .body))
+                    .foregroundStyle(canAdd ? Color.brand : .white.opacity(0.35))
+                    .frame(maxWidth: .infinity)
+            } else {
+                Text(row.label)
+                    .font(.geist(16, .semibold, relativeTo: .body))
+                    .foregroundStyle(.white)
+                Spacer(minLength: 12)
+                Text(row.value.isEmpty ? row.placeholder : row.value)
+                    .font(.geistFixed(15, .medium))
+                    .foregroundStyle(row.value.isEmpty ? .white.opacity(0.35) : .white)
+                    .lineLimit(1)
+                    .truncationMode(.head) // keep the end of a long address visible while typing
+                if editing == row.id {
+                    // The live-edit caret: this row is what the keyboard tray is typing into.
+                    Rectangle()
+                        .fill(Color.brand)
+                        .frame(width: 2, height: 18)
+                }
+            }
+        }
+        .padding(.horizontal, 16)
+        .padding(.vertical, 13)
+        .background {
+            RoundedRectangle(cornerRadius: 14, style: .continuous)
+                .fill(.white.opacity(focused || editing == row.id ? 0.1 : 0))
+        }
+        .overlay {
+            RoundedRectangle(cornerRadius: 14, style: .continuous)
+                .strokeBorder(
+                    editing == row.id ? Color.brand.opacity(0.7) : .white.opacity(focused ? 0.22 : 0),
+                    lineWidth: 1)
+        }
+        .scaleEffect(focused ? 1.0 : 0.98)
+        .animation(.smooth(duration: 0.18), value: focused)
+    }
+
+    // MARK: - Actions
+
+    private func activate(id: String) {
+        switch id {
+        case "add":
+            guard canAdd else {
+                // Not addable yet — jump straight to what's missing instead of a dead press.
+                focusID = "address"
+                openKeyboard("address")
+                return
+            }
+            onAdd(StoredHost(
+                name: name.trimmingCharacters(in: .whitespaces),
+                address: address.trimmingCharacters(in: .whitespaces),
+                port: UInt16(port) ?? 9777))
+            dismiss()
+        default:
+            openKeyboard(id)
+        }
+    }
+
+    private var canAdd: Bool {
+        !address.trimmingCharacters(in: .whitespaces).isEmpty
+            && UInt16(port).map { $0 > 0 } == true
+    }
+
+    private func openKeyboard(_ id: String) {
+        withAnimation(.spring(response: 0.32, dampingFraction: 0.86)) { editing = id }
+    }
+
+    private func closeKeyboard() {
+        withAnimation(.spring(response: 0.32, dampingFraction: 0.86)) { editing = nil }
+    }
+
+    private func editingBinding(_ id: String) -> Binding<String> {
+        switch id {
+        case "name": return $name
+        case "port": return $port
+        default: return $address
+        }
+    }
+
+    /// What the keyboard may type per field: a port is digits, an address never contains spaces;
+    /// a name is free-form.
+    private func allowedCharacters(_ id: String) -> CharacterSet? {
+        switch id {
+        case "port": return CharacterSet(charactersIn: "0123456789")
+        case "address": return CharacterSet(charactersIn: " ").inverted
+        default: return nil
+        }
+    }
+}
+#endif

clients/apple/Sources/PunktfunkClient/Home/GamepadCarousel.swift

@@ -0,0 +1,270 @@
+// The one piece of gamepad-menu machinery shared by the host launcher (GamepadHomeView) and the
+// library coverflow (LibraryCoverflowView): a horizontal, center-snapping carousel driven entirely
+// by a controller (iOS/iPadOS/macOS).
+//
+// The scrolling is pure native SwiftUI — `.scrollTargetLayout()` + `.scrollTargetBehavior(.viewAligned)`
+// snap exactly one item to center, and symmetric `.safeAreaPadding(.horizontal)` (sized off the live
+// container width, so it's correct in an iPad split view too) lets the first and last item reach the
+// middle. The CALLER owns each card's look, including its own `.scrollTransition` — this component
+// deliberately applies none, so a screen can chain the VisualEffect-only transition modifiers without
+// the generic wrapper here pushing the type-checker onto an overload it can't satisfy.
+//
+// Navigation authority: an internal `cursor` (an index), NOT the scroll-position binding, is the
+// source of truth for where the gamepad is. `.scrollPosition(id:)` is a two-way binding and the
+// scroll view WRITES intermediate ids into it while a programmatic animation is in flight — so
+// reading the "current" item back out of it to compute the next one desyncs badly on a fast held
+// stick (each move reads a lagging value and the cursor stalls before the last item). Instead a move
+// advances `cursor` synchronously and points the scroll view at `items[cursor]`; scroll read-back is
+// only allowed to move the cursor when the gamepad hasn't driven recently (i.e. a touch drag).
+//
+// Feedback is dual-channel by design: `.sensoryFeedback` ticks the DEVICE Taptic engine (for a
+// handheld/touch user) and `MenuHaptics` ticks the CONTROLLER (for a couch user holding the pad).
+// Both fire on a move, on confirm, and — for a non-wrapping list — a duller bump plus a short visual
+// recoil when a move is refused at either end.
+
+import PunktfunkKit
+import SwiftUI
+#if os(iOS) || os(macOS)
+
+struct GamepadCarousel<Item: Identifiable, Card: View>: View where Item.ID: Hashable {
+    let items: [Item]
+    /// Output only: the carousel WRITES the focused item's id here for the caller's detail panel.
+    /// It is deliberately not what drives the scroll (see the file header).
+    @Binding var selection: Item.ID?
+    /// Every card is laid out at this fixed width so `.viewAligned` snapping + symmetric side
+    /// insets center exactly one at a time.
+    let itemWidth: CGFloat
+    let spacing: CGFloat
+    /// A → activate the centered item.
+    let onActivate: (Item) -> Void
+    /// Y → the screen's secondary action (e.g. open a host's library); nil disables it.
+    var onSecondary: (() -> Void)?
+    /// X → the screen's tertiary action (e.g. open settings); nil disables it.
+    var onTertiary: (() -> Void)?
+    /// B → back/dismiss; nil disables it (e.g. the root launcher has nowhere to go back to).
+    var onBack: (() -> Void)?
+    /// L1/R1 → jump this many items at once (clamped to the ends); 0 disables the shoulders.
+    var shoulderJump: Int = 0
+    /// Whether this carousel currently owns controller input. A presenting screen (e.g. the host
+    /// launcher) stays mounted behind a presented one (e.g. the library), and both carousels would
+    /// otherwise poll the SAME controller at once — driving both. The parent sets this false while
+    /// something is presented on top so only the front-most carousel consumes the gamepad.
+    var isActive: Bool = true
+    @ViewBuilder let card: (Item) -> Card
+
+    @State private var input = GamepadMenuInput(manager: .shared)
+    @State private var haptics = MenuHaptics(manager: .shared)
+    /// Authoritative gamepad cursor (index into `items`). Never assigned from scroll read-back
+    /// while the gamepad is driving — that's the whole desync fix.
+    @State private var cursor = 0
+    /// The id the scroll view is aligned to — its own two-way `.scrollPosition` state.
+    @State private var scrolledID: Item.ID?
+    /// When the gamepad last moved the cursor; gates scroll read-back so a mid-animation write can't
+    /// drag the cursor backward during a fast held direction.
+    @State private var lastNav = Date.distantPast
+    /// True while a programmatic scroll animation is in flight. `.scrollPosition(id:)` DROPS a new
+    /// write that lands mid-animation — the scroll view stays stuck on the old item even though the
+    /// binding updated — so we never issue one until the previous animation reports complete, then
+    /// `commitScroll` re-targets the current cursor (coalescing a fast burst; see `commitScroll`).
+    @State private var isScrolling = false
+    /// A short horizontal recoil when a move is refused at a list end.
+    @State private var bumpOffset: CGFloat = 0
+    /// `.sensoryFeedback` fires on a change of its trigger; counters request a device tick for the
+    /// confirm and end-stop events (moves trigger on `cursor`).
+    @State private var activateTick = 0
+    @State private var boundaryTick = 0
+
+    /// Read-back from a touch drag is honoured only once the gamepad has been quiet this long
+    /// (longer than a move animation, so overlapping held-stick moves never let it through).
+    private let navSettle: TimeInterval = 0.4
+
+    var body: some View {
+        GeometryReader { geo in
+            let inset = max(0, (geo.size.width - itemWidth) / 2)
+            ScrollView(.horizontal) {
+                HStack(spacing: spacing) {
+                    ForEach(items) { item in
+                        card(item)
+                            .frame(width: itemWidth)
+                            .contentShape(Rectangle())
+                            .onTapGesture { tap(item) }
+                    }
+                }
+                .frame(height: geo.size.height) // fill so shorter cards center vertically
+                .scrollTargetLayout()
+            }
+            .scrollPosition(id: $scrolledID)
+            .scrollTargetBehavior(.viewAligned)
+            // .never, not .hidden — macOS's "always show scroll bars" setting overrides .hidden
+            // and paints a scroller across the console strip.
+            .scrollIndicators(.never)
+            .scrollClipDisabled() // let the focused card scale up past the strip bounds
+            .safeAreaPadding(.horizontal, inset)
+            .offset(x: bumpOffset)
+        }
+        .sensoryFeedback(.selection, trigger: cursor)
+        .sensoryFeedback(.impact(weight: .medium), trigger: activateTick)
+        .sensoryFeedback(.impact(flexibility: .rigid, intensity: 0.7), trigger: boundaryTick)
+        .onAppear {
+            reconcile()
+            wire()
+            if isActive { input.start() }
+        }
+        .onDisappear {
+            input.stop()
+            haptics.stop()
+        }
+        // Hand controller input to/from a screen presented on top (see `isActive`): a covered
+        // carousel stops polling so it can't navigate behind the front-most one.
+        .onChange(of: isActive) { _, active in
+            if active {
+                wire()
+                input.start()
+            } else {
+                input.stop()
+                haptics.stop()
+            }
+        }
+        // A touch drag settles the scroll onto a new id: adopt it as the cursor. Ignored while a
+        // programmatic scroll is animating (its own intermediate id write-backs would regress the
+        // cursor) and briefly after a gamepad move (the same reason), so only a genuine touch drag
+        // — which never sets `isScrolling` — moves the cursor here.
+        .onChange(of: scrolledID) { _, newValue in
+            guard !isScrolling, Date().timeIntervalSince(lastNav) > navSettle else { return }
+            guard let idx = index(of: newValue), idx != cursor else { return }
+            cursor = idx
+            selection = newValue
+        }
+        // Re-seed a dropped/changed selection AND re-wire the input callbacks so they capture the
+        // current `items` value (a plain array — unlike an observed object it would otherwise go
+        // stale in the closures stored on `input`).
+        .onChange(of: items.map(\.id)) { _, _ in
+            reconcile()
+            wire()
+        }
+    }
+
+    // MARK: - Input wiring
+
+    private func wire() {
+        input.onMove = { move($0) }
+        input.onConfirm = { activate() }
+        input.onSecondary = onSecondary
+        input.onTertiary = onTertiary
+        input.onBack = onBack
+        input.onShoulder = shoulderJump > 0 ? { shoulder(right: $0) } : nil
+    }
+
+    private func move(_ direction: GamepadMenuInput.Direction) {
+        let forward = direction == .right || direction == .down
+        step(by: forward ? 1 : -1, clampAtEnds: false)
+    }
+
+    private func shoulder(right: Bool) {
+        step(by: right ? shoulderJump : -shoulderJump, clampAtEnds: true)
+    }
+
+    /// Advance the cursor by `delta`. A single move (`clampAtEnds: false`) that would leave the list
+    /// recoils + bumps; a shoulder jump (`clampAtEnds: true`) lands on the end item, bumping only if
+    /// already there. The cursor is the authority — the scroll view is pointed at it, never read for it.
+    private func step(by delta: Int, clampAtEnds: Bool) {
+        guard !items.isEmpty else { return }
+        var target = cursor + delta
+        if target < 0 || target >= items.count {
+            guard clampAtEnds else { return boundaryBump(forward: delta > 0) }
+            target = min(max(target, 0), items.count - 1)
+        }
+        guard target != cursor else { return boundaryBump(forward: delta > 0) }
+        cursor = target
+        lastNav = Date()
+        haptics.move()
+        selection = items[target].id // text/detail updates immediately; the scroll chases
+        commitScroll()
+    }
+
+    private let scrollAnim: TimeInterval = 0.24
+    /// A hair past `scrollAnim` — long enough that the scroll has actually settled before the next
+    /// write, short enough to stay responsive.
+    private var scrollSettle: TimeInterval { scrollAnim + 0.05 }
+
+    /// Drive the scroll toward the current cursor, one honoured write at a time. `.scrollPosition(id:)`
+    /// DROPS a write that lands while a scroll is still animating, so we issue at most one at a time and
+    /// re-target the LATEST cursor once it settles — coalescing a fast burst (hold OR quick flicks) and
+    /// always converging on the final item, instead of getting stuck on the old card.
+    ///
+    /// The settle is timed by a plain timer rather than `withAnimation`'s completion: `scrolledID` is a
+    /// discrete id, not an animatable value, so `withAnimation` has no tracked animation to fire a
+    /// reliable completion against (it can fire early — which is exactly what let quick flicks slip a
+    /// write through mid-scroll and stick). `asyncAfter` always fires, so `isScrolling` can never latch.
+    private func commitScroll() {
+        guard !isScrolling, cursor >= 0, cursor < items.count else { return }
+        let id = items[cursor].id
+        guard scrolledID != id else { return }
+        isScrolling = true
+        withAnimation(.easeOut(duration: scrollAnim)) { scrolledID = id }
+        DispatchQueue.main.asyncAfter(deadline: .now() + scrollSettle) {
+            MainActor.assumeIsolated {
+                isScrolling = false
+                commitScroll() // the cursor may have advanced while this scroll ran — chase it
+            }
+        }
+    }
+
+    private func activate() {
+        guard cursor >= 0, cursor < items.count else { return }
+        activateTick &+= 1
+        haptics.confirm()
+        onActivate(items[cursor])
+    }
+
+    /// Touch fallback matching the rest of the app: tapping the centered card activates it, tapping
+    /// any other re-centers on it.
+    private func tap(_ item: Item) {
+        if let idx = index(of: item.id), idx == cursor {
+            activate()
+        } else if let idx = index(of: item.id) {
+            cursor = idx
+            lastNav = Date()
+            haptics.move()
+            selection = item.id
+            commitScroll()
+        }
+    }
+
+    // MARK: - Selection housekeeping
+
+    private func index(of id: Item.ID?) -> Int? {
+        guard let id else { return nil }
+        return items.firstIndex { $0.id == id }
+    }
+
+    /// Keep `cursor`/`scrolledID`/`selection` consistent with `items`: seed on appear, and on a list
+    /// change keep the same focused item when it survives, else clamp the cursor into range.
+    private func reconcile() {
+        guard !items.isEmpty else {
+            cursor = 0
+            if scrolledID != nil { scrolledID = nil }
+            if selection != nil { selection = nil }
+            return
+        }
+        if let sid = scrolledID, let idx = index(of: sid) {
+            cursor = idx
+            if selection != sid { selection = sid }
+        } else {
+            let idx = min(max(cursor, 0), items.count - 1)
+            cursor = idx
+            let id = items[idx].id
+            scrolledID = id
+            selection = id
+        }
+    }
+
+    private func boundaryBump(forward: Bool) {
+        boundaryTick &+= 1
+        haptics.boundary()
+        let recoil: CGFloat = forward ? -16 : 16
+        withAnimation(.spring(response: 0.16, dampingFraction: 0.42)) { bumpOffset = recoil }
+        withAnimation(.spring(response: 0.34, dampingFraction: 0.7).delay(0.1)) { bumpOffset = 0 }
+    }
+}
+#endif

clients/apple/Sources/PunktfunkClient/Home/GamepadChrome.swift

@@ -0,0 +1,232 @@
+// Chrome shared by the gamepad-driven screens (GamepadHomeView, GamepadSettingsView,
+// GamepadAddHostView, LibraryCoverflowView): the full-bleed console backdrop, the
+// controller-glyph hint bar, and the connected-controller status chip. One look across every
+// screen is what makes the gamepad UI read as a coherent mode rather than a set of themed pages.
+// iOS/iPadOS and macOS (the couch Mac-mini case); tvOS keeps its native focus engine instead.
+
+import PunktfunkKit
+import SwiftUI
+#if os(iOS) || os(macOS)
+import GameController
+
+/// The active controller's real glyph for a button (Xbox "A", DualSense ✕, …) via
+/// `sfSymbolsName`; a generic fallback before a controller profile resolves.
+/// @MainActor: GamepadManager is main-actor-bound (inside a View body this was implicit).
+@MainActor
+func buttonGlyph(
+    _ button: KeyPath<GCExtendedGamepad, GCControllerButtonInput>, fallback: String
+) -> String {
+    GamepadManager.shared.active?.controller.extendedGamepad?[keyPath: button].sfSymbolsName
+        ?? fallback
+}
+
+/// Top padding for a gamepad screen's pinned title. macOS gets extra clearance — the launcher
+/// title sits right under the window titlebar and the settings/add-host sheets have no titlebar
+/// at all, so the iOS value hugs the top edge there.
+func gamepadTitleTopPadding(compact: Bool) -> CGFloat {
+    #if os(macOS)
+    26
+    #else
+    compact ? 4 : 10
+    #endif
+}
+
+/// One glyph + label cell in a hint bar.
+struct GamepadHint: Identifiable {
+    let glyph: String
+    let text: String
+    var id: String { glyph + text }
+}
+
+/// The pinned controls legend every gamepad screen shows bottom-leading (via `.safeAreaInset`).
+/// Same font/spacing everywhere so the legend reads as system chrome, not per-screen decoration.
+struct GamepadHintBar: View {
+    let hints: [GamepadHint]
+
+    var body: some View {
+        HStack(spacing: 18) {
+            ForEach(hints) { hint in
+                HStack(spacing: 7) {
+                    Image(systemName: hint.glyph)
+                        .font(.system(size: 19))
+                        .foregroundStyle(.white)
+                    Text(hint.text)
+                }
+                .fixedSize() // keep glyph + label together; never truncate a hint mid-word
+            }
+        }
+        .font(.geist(14, .semibold, relativeTo: .subheadline))
+        .foregroundStyle(.white.opacity(0.85))
+    }
+}
+
+/// The console backdrop: a living "aurora" field in the brand's violet family — soft color blobs
+/// drifting on slow Lissajous paths over black, in the direction of Apple Music's animated player
+/// background but calmer (long 30–90 s periods, muted opacities, a legibility scrim on top, so it
+/// reads as ambience behind the cards, never as content). Deliberately pure SwiftUI rather than a
+/// .metal shader: these sources are built both by SwiftPM (`swift run`/tests) and by the Xcode
+/// project's synchronized folders, and a compiled metallib is only reliably bundled in one of the
+/// two — radial gradients driven by a TimelineView give the same look with none of that risk.
+///
+/// Applied via `.background { }` — NOT as a ZStack sibling — so the `.ignoresSafeArea()` here
+/// can't inflate the caller's layout past the safe area (see the layout discipline note in
+/// GamepadHomeView's header). Honors Reduce Motion by freezing the field at a fixed phase.
+struct GamepadScreenBackground: View {
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
+
+    /// One drifting color blob: a base position + drift ellipse (unit coordinates), angular
+    /// speeds (rad/s — periods of 30–90 s), and a radius that slowly breathes.
+    private struct Blob {
+        let color: Color
+        let center: CGPoint
+        let drift: CGSize
+        let speed: (x: Double, y: Double)
+        let phase: (x: Double, y: Double)
+        /// Radius as a fraction of the view's larger dimension (+ breathing amplitude/speed).
+        let radius: CGFloat
+        let breathe: (amount: CGFloat, speed: Double)
+        let opacity: Double
+    }
+
+    /// The brand violet, a deeper indigo, a warmer plum, and a cool blue — related hues so the
+    /// field shifts within one temperature instead of strobing through the rainbow.
+    private static let blobs: [Blob] = [
+        Blob(color: Color(red: 0.53, green: 0.47, blue: 0.96), // brand violet
+             center: CGPoint(x: 0.30, y: 0.24), drift: CGSize(width: 0.16, height: 0.10),
+             speed: (0.111, 0.083), phase: (0.0, 1.9),
+             radius: 0.52, breathe: (0.07, 0.061), opacity: 0.52),
+        Blob(color: Color(red: 0.24, green: 0.20, blue: 0.72), // deep indigo
+             center: CGPoint(x: 0.78, y: 0.66), drift: CGSize(width: 0.13, height: 0.14),
+             speed: (0.071, 0.096), phase: (2.4, 0.7),
+             radius: 0.58, breathe: (0.08, 0.049), opacity: 0.55),
+        Blob(color: Color(red: 0.62, green: 0.30, blue: 0.80), // plum
+             center: CGPoint(x: 0.16, y: 0.82), drift: CGSize(width: 0.12, height: 0.09),
+             speed: (0.089, 0.067), phase: (4.1, 3.2),
+             radius: 0.44, breathe: (0.09, 0.078), opacity: 0.42),
+        Blob(color: Color(red: 0.22, green: 0.38, blue: 0.86), // cool blue
+             center: CGPoint(x: 0.70, y: 0.12), drift: CGSize(width: 0.10, height: 0.08),
+             speed: (0.059, 0.104), phase: (1.2, 5.0),
+             radius: 0.40, breathe: (0.06, 0.055), opacity: 0.38),
+    ]
+
+    var body: some View {
+        Group {
+            if reduceMotion {
+                field(at: 0)
+            } else {
+                // 30 Hz is plenty for centimeters-per-minute drift, and halves the redraw cost
+                // of a battery-fed couch device vs. the default display rate.
+                TimelineView(.animation(minimumInterval: 1.0 / 30.0)) { context in
+                    field(at: context.date.timeIntervalSinceReferenceDate)
+                }
+            }
+        }
+        .ignoresSafeArea()
+    }
+
+    private func field(at t: TimeInterval) -> some View {
+        GeometryReader { geo in
+            let side = max(geo.size.width, geo.size.height)
+            ZStack {
+                Color.black
+                ZStack {
+                    ForEach(Self.blobs.indices, id: \.self) { i in
+                        blobView(Self.blobs[i], at: t, in: geo.size, side: side)
+                    }
+                }
+                // ±10° over ~5 min — the whole field very slowly warms and cools.
+                .hueRotation(.degrees(sin(t * 0.021) * 10))
+                // Composite the additive blobs offscreen once instead of per-layer.
+                .drawingGroup()
+                // Legibility scrim: the title (top) and detail/hints (bottom) always sit on
+                // near-black, whatever the blobs are doing behind them.
+                LinearGradient(
+                    stops: [
+                        .init(color: .black.opacity(0.55), location: 0),
+                        .init(color: .black.opacity(0.15), location: 0.35),
+                        .init(color: .black.opacity(0.20), location: 0.65),
+                        .init(color: .black.opacity(0.60), location: 1),
+                    ],
+                    startPoint: .top, endPoint: .bottom)
+            }
+        }
+    }
+
+    private func blobView(_ blob: Blob, at t: TimeInterval, in size: CGSize, side: CGFloat) -> some View {
+        let x = blob.center.x + blob.drift.width * CGFloat(sin(t * blob.speed.x + blob.phase.x))
+        let y = blob.center.y + blob.drift.height * CGFloat(cos(t * blob.speed.y + blob.phase.y))
+        let r = side * blob.radius
+            * (1 + blob.breathe.amount * CGFloat(sin(t * blob.breathe.speed + blob.phase.x)))
+        return Circle()
+            .fill(RadialGradient(
+                colors: [blob.color, blob.color.opacity(0)],
+                center: .center, startRadius: 0, endRadius: r / 2))
+            .frame(width: r, height: r)
+            .position(x: x * size.width, y: y * size.height)
+            .opacity(blob.opacity)
+            .blendMode(.plusLighter)
+    }
+}
+
+/// A darkening scrim behind a pinned tray (a screen title, the hints/detail bar, the keyboard
+/// tray): scrollable rows pass beneath those insets, so without this the tray text and the row
+/// underneath render interleaved. Fades toward the content so it reads as depth, not a bar.
+struct GamepadTrayScrim: View {
+    let edge: VerticalEdge
+
+    var body: some View {
+        LinearGradient(
+            stops: [
+                .init(color: .black.opacity(0.92), location: 0),
+                .init(color: .black.opacity(0.85), location: 0.55),
+                .init(color: .black.opacity(0), location: 1),
+            ],
+            startPoint: edge == .top ? .top : .bottom,
+            endPoint: edge == .top ? .bottom : .top)
+            // Grow past the tray so the fade-to-clear happens OUTSIDE its bounds — the tray's own
+            // text always sits on the near-opaque part, rows dim before they reach it.
+            .padding(edge == .top ? .bottom : .top, -32)
+            .ignoresSafeArea()
+    }
+}
+
+/// "Which pad is driving this UI" — the active controller's name and battery, worn as a quiet
+/// chip in the launcher's top bar. Callers observe GamepadManager already, so this re-renders
+/// when the pad or its battery state changes.
+struct ControllerStatusChip: View {
+    let controller: GamepadManager.DiscoveredController
+
+    var body: some View {
+        HStack(spacing: 7) {
+            Image(systemName: controller.hasTouchpadAndMotion
+                ? "playstation.logo" : "gamecontroller.fill")
+                .font(.system(size: 12))
+            Text(controller.name)
+                .lineLimit(1)
+            if let level = controller.batteryLevel {
+                Image(systemName: batterySymbol(level))
+                    .font(.system(size: 12))
+                    .foregroundStyle(level <= 0.2 && !controller.isCharging
+                        ? AnyShapeStyle(.red) : AnyShapeStyle(.white.opacity(0.7)))
+            }
+        }
+        .font(.geist(12, .medium, relativeTo: .caption))
+        .foregroundStyle(.white.opacity(0.7))
+        .padding(.horizontal, 12)
+        .padding(.vertical, 7)
+        .background(Capsule().fill(.white.opacity(0.08)))
+        .overlay(Capsule().strokeBorder(.white.opacity(0.12), lineWidth: 1))
+    }
+
+    private func batterySymbol(_ level: Float) -> String {
+        if controller.isCharging { return "battery.100.bolt" }
+        switch level {
+        case ..<0.125: return "battery.0"
+        case ..<0.375: return "battery.25"
+        case ..<0.625: return "battery.50"
+        case ..<0.875: return "battery.75"
+        default: return "battery.100"
+        }
+    }
+}
+#endif

clients/apple/Sources/PunktfunkClient/Home/GamepadHomeView.swift

@@ -0,0 +1,368 @@
+// The gamepad-driven home screen (iOS/iPadOS only): a distinct, "10-foot" console-style host
+// launcher shown INSTEAD of HomeView while GamepadUIEnvironment is active — a separate screen built
+// around a center-snapping carousel of hosts, driven from the couch with a controller. No touch is
+// required anywhere: A connects, Y opens a saved host's library (when the flag is on), X opens the
+// gamepad settings screen, and the carousel always ends in an Add Host tile that opens the
+// controller-keyboard add flow. (A tap still works as a fallback for all of it.)
+//
+// All the scrolling/snapping/navigation/haptics live in GamepadCarousel; this file is the launcher's
+// chrome. Layout discipline (so nothing is EVER clipped, portrait or landscape): the gradient is a
+// `.background` modifier — NOT a ZStack sibling — because an `.ignoresSafeArea()` sibling expands the
+// stack to full-screen and hands the GeometryReader the full height, laying content out under the
+// status bar / home indicator. As a background it draws behind without affecting layout, so the
+// GeometryReader is sized to the safe area. The title and the controller-glyph hints are pinned with
+// `.safeAreaInset` (top / bottom-leading) — guaranteed inside the safe area and out of the carousel's
+// vertical budget — and the card is sized off the remaining height. macOS mounts it too (the
+// couch Mac-mini case) — same screen, with the settings/add-host covers presented as sheets
+// (macOS has no fullScreenCover). tvOS never mounts this view (native focus engine instead).
+
+import PunktfunkKit
+import SwiftUI
+#if os(iOS) || os(macOS)
+import GameController
+
+/// One navigable tile: a saved host, a discovered-but-unsaved one, or the trailing Add Host
+/// action. Hashable so it can be the carousel's scroll-position identity.
+private enum GamepadHomeTarget: Hashable {
+    case saved(UUID)
+    case discovered(String)
+    case addHost
+}
+
+/// A fully-resolved launcher tile — display fields + the activate action, built fresh each render
+/// from the live stores so nothing goes stale.
+private struct HomeTile: Identifiable {
+    let id: GamepadHomeTarget
+    let title: String
+    let subtitle: String
+    var isOnline = false
+    var isPaired = false
+    var isConnecting = false
+    /// Saved (solid monogram) vs. discovered-but-unsaved / action (tinted outline).
+    var filled = false
+    /// Only saved hosts have a library (matches the touch grid's context-menu gate).
+    var hasLibrary = false
+    /// Shows this SF symbol in the badge instead of the title monogram (the Add Host tile).
+    var icon: String?
+    /// Whether the detail panel shows the online/paired pill (hosts yes, actions no).
+    var showsStatus = true
+    let activate: () -> Void
+}
+
+struct GamepadHomeView: View {
+    @ObservedObject var store: HostStore
+    @ObservedObject var model: SessionModel
+    @ObservedObject var discovery: HostDiscovery
+    @Binding var libraryTarget: StoredHost?
+    let connect: (StoredHost) -> Void
+    let connectDiscovered: (DiscoveredHost) -> Void
+
+    /// Same experimental gate the touch grid's "Browse Library…" context-menu item uses.
+    @AppStorage(DefaultsKey.libraryEnabled) private var libraryEnabled = false
+    #if os(iOS)
+    /// `.compact` in a landscape phone window — drives tighter chrome so everything still fits.
+    @Environment(\.verticalSizeClass) private var vSizeClass
+
+    private var compact: Bool { vSizeClass == .compact }
+    #else
+    private let compact = false // no size classes on macOS; the window minimum keeps room
+    #endif
+    @ObservedObject private var gamepads = GamepadManager.shared
+    @State private var selection: GamepadHomeTarget?
+    @State private var showSettings = false
+    @State private var showAddHost = false
+
+    var body: some View {
+        GeometryReader { geo in
+            hero(for: geo.size)
+        }
+        // Pinned inside the safe area, out of the carousel's vertical budget — never clipped.
+        .safeAreaInset(edge: .top, spacing: 0) {
+            titleBar
+                .padding(.top, gamepadTitleTopPadding(compact: compact))
+                .padding(.bottom, compact ? 4 : 8)
+        }
+        .safeAreaInset(edge: .bottom, alignment: .leading, spacing: 0) {
+            GamepadHintBar(hints: hints)
+                .padding(.leading, 22)
+                .padding(.vertical, compact ? 6 : 10)
+        }
+        .background { GamepadScreenBackground() }
+        .onAppear { discovery.start() }
+        .onDisappear { discovery.stop() }
+        // The settings / add-host screens take over the controller (the carousel's `isActive`
+        // gate above). iOS presents them full screen — the immersive console feel; macOS has no
+        // fullScreenCover, so they become generously sized sheets over the dimmed launcher.
+        #if os(macOS)
+        .sheet(isPresented: $showSettings) {
+            GamepadSettingsView()
+                .frame(width: 720, height: 640)
+        }
+        .sheet(isPresented: $showAddHost) {
+            GamepadAddHostView { store.add($0) }
+                .frame(width: 660, height: 620)
+        }
+        .frame(minWidth: 640, minHeight: 420)
+        #else
+        .fullScreenCover(isPresented: $showSettings) { GamepadSettingsView() }
+        .fullScreenCover(isPresented: $showAddHost) {
+            GamepadAddHostView { store.add($0) }
+        }
+        #endif
+    }
+
+    // MARK: - Hero (carousel + detail), sized to fit the space between the pinned title and hints
+
+    @ViewBuilder private func hero(for size: CGSize) -> some View {
+        let cardWidth = min(340, size.width * 0.84)
+        // 96 ≈ the carousel's own vertical breathing (+40) plus the detail line (~54); clamp so
+        // the strip + detail always fit the region the safe-area insets leave.
+        let cardHeight = min(compact ? 170 : 210, max(118, size.height - 96))
+        VStack(spacing: compact ? 8 : 10) {
+            Spacer(minLength: 0)
+            carousel(cardWidth: cardWidth, cardHeight: cardHeight)
+            detailPanel
+            Spacer(minLength: 0)
+        }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+    }
+
+    // MARK: - Chrome
+
+    private var titleBar: some View {
+        Text("Select a Host")
+            .font(.geist(compact ? 20 : 30, .bold, relativeTo: .title))
+            .foregroundStyle(.white)
+            .frame(maxWidth: .infinity)
+            .overlay(alignment: .trailing) {
+                // Which pad is driving this UI (name + battery) — quiet, and only where there's
+                // room; a compact-height phone gives the pixels to the carousel instead.
+                if !compact, let active = gamepads.active {
+                    ControllerStatusChip(controller: active)
+                        .padding(.trailing, 20)
+                }
+            }
+    }
+
+    // MARK: - Carousel
+
+    private func carousel(cardWidth: CGFloat, cardHeight: CGFloat) -> some View {
+        GamepadCarousel(
+            items: tiles,
+            selection: $selection,
+            itemWidth: cardWidth,
+            spacing: 30,
+            onActivate: { $0.activate() },
+            onSecondary: { openLibraryForSelected() },
+            onTertiary: { showSettings = true },
+            // Stop consuming the controller while another screen is presented on top — otherwise
+            // the launcher navigates behind it (invisibly on iPhone, visibly on iPad's page sheet).
+            isActive: libraryTarget == nil && !showSettings && !showAddHost
+        ) { tile in
+            hostCard(tile, size: CGSize(width: cardWidth, height: cardHeight))
+        }
+        .frame(height: cardHeight + 40)
+    }
+
+    /// The host tile plus its focus treatment. Every continuous visual reads the scroll view's own
+    /// per-frame `phase` (real distance-from-centered), so the look always matches what's on screen
+    /// mid-scroll. `.shadow`/`.overlay` aren't part of `VisualEffect`, so the focus pop is scale +
+    /// brightness/saturation + a depth blur on the recessed neighbors.
+    private func hostCard(_ tile: HomeTile, size: CGSize) -> some View {
+        GamepadHostTile(tile: tile, size: size)
+            .scrollTransition { content, phase in
+                let d = CGFloat(min(abs(phase.value), 1))
+                let scale = 1 - d * 0.12
+                let bright = Double(-d * 0.24)
+                let sat = Double(1 - d * 0.42)
+                let soft = d * 3
+                let fade = Double(1 - d * 0.22)
+                return content
+                    .scaleEffect(scale)
+                    .brightness(bright)
+                    .saturation(sat)
+                    .blur(radius: soft)
+                    .opacity(fade)
+            }
+    }
+
+    /// The "now focused" host, spelled out below the strip — empty (not hidden) so the layout
+    /// doesn't jump as the selection changes.
+    @ViewBuilder private var detailPanel: some View {
+        let tile = tiles.first { $0.id == selection }
+        VStack(spacing: 6) {
+            Text(tile?.title ?? " ")
+                .font(.geist(22, .bold, relativeTo: .title2))
+                .foregroundStyle(.white)
+                .lineLimit(1)
+            HStack(spacing: 10) {
+                Text(tile?.subtitle ?? " ")
+                    .font(.geist(13, relativeTo: .caption))
+                    .foregroundStyle(.white.opacity(0.6))
+                if let tile, tile.showsStatus {
+                    statusPill(online: tile.isOnline, paired: tile.isPaired)
+                }
+            }
+        }
+        .frame(maxWidth: .infinity)
+        .padding(.horizontal, 24)
+        .animation(.smooth(duration: 0.25), value: selection)
+    }
+
+    private func statusPill(online: Bool, paired: Bool) -> some View {
+        HStack(spacing: 6) {
+            Circle()
+                .fill(online ? Color.green : Color.white.opacity(0.35))
+                .frame(width: 6, height: 6)
+            Text(online ? "ONLINE" : "OFFLINE")
+            if paired { Text("· PAIRED") }
+        }
+        .font(.geist(11, .medium, relativeTo: .caption2))
+        .tracking(0.8)
+        .foregroundStyle(.white.opacity(0.55))
+    }
+
+    // MARK: - Hint bar (pinned bottom-leading via safeAreaInset)
+
+    private var hints: [GamepadHint] {
+        let selected = tiles.first { $0.id == selection }
+        var hints = [GamepadHint(
+            glyph: buttonGlyph(\.buttonA, fallback: "a.circle"),
+            text: selected?.id == .addHost ? "Add Host" : "Connect")]
+        if libraryEnabled, selected?.hasLibrary == true {
+            hints.append(.init(glyph: buttonGlyph(\.buttonY, fallback: "y.circle"), text: "Library"))
+        }
+        hints.append(.init(glyph: buttonGlyph(\.buttonX, fallback: "x.circle"), text: "Settings"))
+        return hints
+    }
+
+    // MARK: - Data + actions
+
+    /// Built fresh each render from the live stores (no stale value capture) — saved hosts first,
+    /// then discovered-but-unsaved ones, then the Add Host action tile (so the strip is never
+    /// empty and manual entry is always one press away).
+    private var tiles: [HomeTile] {
+        let saved = store.hosts.map { host in
+            HomeTile(
+                id: .saved(host.id),
+                title: host.displayName,
+                subtitle: "\(host.address):\(String(host.port))",
+                isOnline: discovery.advertises(host),
+                isPaired: host.pinnedSHA256 != nil,
+                isConnecting: model.phase == .connecting && model.activeHost?.id == host.id,
+                filled: true,
+                hasLibrary: true,
+                activate: { connect(host) })
+        }
+        let discovered = discovery.unsaved(among: store.hosts).map { d in
+            HomeTile(
+                id: .discovered(d.id),
+                title: d.name,
+                subtitle: "\(d.host):\(String(d.port))",
+                isOnline: true,
+                activate: { connectDiscovered(d) })
+        }
+        let add = HomeTile(
+            id: .addHost,
+            title: "Add Host",
+            subtitle: "Register a host by address",
+            icon: "plus",
+            showsStatus: false,
+            activate: { showAddHost = true })
+        return saved + discovered + [add]
+    }
+
+    /// Only saved hosts have a library — matches the touch grid, where "Browse Library…" is a
+    /// `HostCardView`-only action never offered on `DiscoveredCardView`.
+    private func openLibraryForSelected() {
+        guard libraryEnabled, case .saved(let id) = selection,
+              let host = store.hosts.first(where: { $0.id == id })
+        else { return }
+        libraryTarget = host
+    }
+}
+
+/// One "console tile" in the host carousel — a dark-glass landscape card, bigger and bolder than the
+/// touch grid's `HostCardView`. Renders only its base look; the centered-tile pop is layered on by
+/// the caller's `.scrollTransition` so it always tracks the real scroll position.
+private struct GamepadHostTile: View {
+    let tile: HomeTile
+    let size: CGSize
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 0) {
+            HStack(alignment: .top) {
+                monogramBadge
+                Spacer(minLength: 0)
+                if tile.isOnline {
+                    Circle()
+                        .fill(Color.green)
+                        .frame(width: 9, height: 9)
+                        .shadow(color: .green.opacity(0.7), radius: 5)
+                }
+            }
+            Spacer(minLength: 0)
+            Text(tile.title)
+                .font(.geist(23, .bold, relativeTo: .title2))
+                .foregroundStyle(.white)
+                .lineLimit(1)
+                .minimumScaleFactor(0.7)
+            Text(tile.subtitle)
+                .font(.geist(13, relativeTo: .caption))
+                .foregroundStyle(.white.opacity(0.55))
+                .lineLimit(1)
+                .padding(.top, 2)
+        }
+        .padding(20)
+        .frame(width: size.width, height: size.height, alignment: .leading)
+        .background {
+            RoundedRectangle(cornerRadius: 26, style: .continuous)
+                .fill(.ultraThinMaterial)
+                .environment(\.colorScheme, .dark)
+        }
+        .overlay {
+            RoundedRectangle(cornerRadius: 26, style: .continuous)
+                .strokeBorder(
+                    LinearGradient(
+                        colors: [.white.opacity(0.22), .white.opacity(0.04)],
+                        startPoint: .top, endPoint: .bottom),
+                    style: StrokeStyle(lineWidth: 1, dash: tile.filled ? [] : [6, 5]))
+        }
+        .clipShape(RoundedRectangle(cornerRadius: 26, style: .continuous))
+        .shadow(color: .black.opacity(0.45), radius: 20, y: 14)
+    }
+
+    private var monogramBadge: some View {
+        let shape = RoundedRectangle(cornerRadius: 15, style: .continuous)
+        return ZStack {
+            shape.fill(tile.filled
+                ? AnyShapeStyle(LinearGradient(
+                    colors: [Color.brand, Color.brand.opacity(0.68)],
+                    startPoint: .top, endPoint: .bottom))
+                : AnyShapeStyle(Color.brand.opacity(0.16)))
+            if tile.isConnecting {
+                ProgressView().tint(.white)
+            } else if let icon = tile.icon {
+                Image(systemName: icon)
+                    .font(.system(size: 24, weight: .semibold))
+                    .foregroundStyle(Color.brand)
+            } else {
+                Text(monogram(tile.title))
+                    .font(.geistFixed(25, .bold))
+                    .foregroundStyle(tile.filled ? .white : Color.brand)
+            }
+        }
+        .frame(width: 52, height: 52)
+        .overlay {
+            if !tile.filled {
+                shape.strokeBorder(Color.brand.opacity(0.5), lineWidth: 1)
+            }
+        }
+    }
+
+    private func monogram(_ name: String) -> String {
+        guard let first = name.trimmingCharacters(in: .whitespacesAndNewlines).first else { return "•" }
+        return String(first).uppercased()
+    }
+}
+#endif

clients/apple/Sources/PunktfunkClient/Home/GamepadKeyboard.swift

@@ -0,0 +1,182 @@
+// A controller-driven on-screen keyboard for the gamepad UI's text fields (iOS/iPadOS only) —
+// iOS has no system keyboard a game controller can drive (the tvOS fullscreen entry doesn't
+// exist here), so without this, adding a host from the couch would end with "now touch the
+// screen". Dpad/stick moves a key cursor over a fixed grid, A types, X backspaces, B/Y confirms.
+// Lowercase + digits + the hostname/address punctuation is deliberately the whole character set:
+// these fields hold names, addresses and ports, not prose.
+//
+// Edits are applied to the binding live (the caller's field row shows every keystroke), so
+// closing the keyboard is always "done" — there is no separate cancel/commit step to get wrong.
+// Touch stays a fallback: every keycap is tappable.
+
+import PunktfunkKit
+import SwiftUI
+#if os(iOS) || os(macOS)
+
+struct GamepadKeyboard: View {
+    @Binding var text: String
+    /// Restricts typed characters (e.g. digits for a port field); backspace always works.
+    var allowed: CharacterSet?
+    /// B / Y / the Done key — the binding already holds the final text.
+    let onDone: () -> Void
+
+    @State private var input = GamepadMenuInput(manager: .shared)
+    @State private var haptics = MenuHaptics(manager: .shared)
+    @State private var cursor = GridPos(row: 1, col: 0) // opens on "q"
+    @State private var pressTick = 0
+    @State private var boundaryTick = 0
+    #if os(iOS)
+    /// `.compact` (landscape phone): shorter keycaps so the tray leaves room for the field rows.
+    @Environment(\.verticalSizeClass) private var vSizeClass
+
+    private var compact: Bool { vSizeClass == .compact }
+    #else
+    private let compact = false // no size classes on macOS; the sheet is sized generously
+    #endif
+
+    private struct GridPos: Hashable {
+        var row: Int
+        var col: Int
+    }
+
+    private enum Key: Hashable {
+        case char(Character)
+        case space
+        case backspace
+        case done
+    }
+
+    /// Digits first (addresses/ports), then letters; the last char column carries the
+    /// hostname/address punctuation.
+    private static let rows: [[Key]] = [
+        Array("1234567890").map(Key.char),
+        Array("qwertyuiop").map(Key.char),
+        Array("asdfghjkl-").map(Key.char),
+        Array("zxcvbnm._:").map(Key.char),
+        [.space, .backspace, .done],
+    ]
+
+    var body: some View {
+        VStack(spacing: compact ? 5 : 7) {
+            ForEach(Self.rows.indices, id: \.self) { r in
+                HStack(spacing: compact ? 5 : 7) {
+                    ForEach(Self.rows[r].indices, id: \.self) { c in
+                        keycap(Self.rows[r][c], focused: cursor == GridPos(row: r, col: c))
+                            .onTapGesture {
+                                cursor = GridPos(row: r, col: c)
+                                press(Self.rows[r][c])
+                            }
+                    }
+                }
+            }
+        }
+        .frame(maxWidth: 560)
+        .padding(compact ? 10 : 14)
+        .background {
+            RoundedRectangle(cornerRadius: 22, style: .continuous)
+                .fill(.ultraThinMaterial)
+                .environment(\.colorScheme, .dark)
+        }
+        .overlay {
+            RoundedRectangle(cornerRadius: 22, style: .continuous)
+                .strokeBorder(.white.opacity(0.12), lineWidth: 1)
+        }
+        .sensoryFeedback(.selection, trigger: cursor)
+        .sensoryFeedback(.impact(weight: .light), trigger: pressTick)
+        .sensoryFeedback(.impact(flexibility: .rigid, intensity: 0.7), trigger: boundaryTick)
+        .onAppear {
+            wire()
+            input.start()
+        }
+        .onDisappear {
+            input.stop()
+            haptics.stop()
+        }
+    }
+
+    // MARK: - Keycaps
+
+    @ViewBuilder private func keycap(_ key: Key, focused: Bool) -> some View {
+        Group {
+            switch key {
+            case .char(let c):
+                Text(String(c)).font(.geistFixed(18, .medium))
+            case .space:
+                Image(systemName: "space")
+            case .backspace:
+                Image(systemName: "delete.left")
+            case .done:
+                Label("Done", systemImage: "checkmark")
+                    .font(.geist(15, .semibold, relativeTo: .callout))
+            }
+        }
+        .foregroundStyle(focused ? Color.black : .white)
+        .frame(maxWidth: .infinity, minHeight: compact ? 34 : 42)
+        .background {
+            RoundedRectangle(cornerRadius: 9, style: .continuous)
+                .fill(focused ? AnyShapeStyle(Color.brand) : AnyShapeStyle(.white.opacity(0.08)))
+        }
+        .animation(.smooth(duration: 0.12), value: focused)
+        .contentShape(Rectangle())
+    }
+
+    // MARK: - Input
+
+    private func wire() {
+        input.onMove = { move($0) }
+        input.onConfirm = { press(Self.rows[cursor.row][cursor.col]) }
+        input.onTertiary = { press(.backspace) }
+        input.onSecondary = onDone
+        input.onBack = onDone
+    }
+
+    private func move(_ direction: GamepadMenuInput.Direction) {
+        var next = cursor
+        switch direction {
+        case .left: next.col -= 1
+        case .right: next.col += 1
+        case .up, .down:
+            let row = cursor.row + (direction == .down ? 1 : -1)
+            guard row >= 0, row < Self.rows.count else { return refuse() }
+            // Map the column proportionally between rows of different widths, so e.g. Done
+            // (rightmost of 3) goes up to the rightmost letters, not to "e".
+            let from = max(1, Self.rows[cursor.row].count - 1)
+            let to = Self.rows[row].count - 1
+            next = GridPos(
+                row: row,
+                col: Int((Double(cursor.col) * Double(to) / Double(from)).rounded()))
+        }
+        guard next.row >= 0, next.row < Self.rows.count,
+              next.col >= 0, next.col < Self.rows[next.row].count
+        else { return refuse() }
+        cursor = next
+        haptics.move()
+    }
+
+    private func press(_ key: Key) {
+        switch key {
+        case .char(let c):
+            if let allowed, !c.unicodeScalars.allSatisfy(allowed.contains) { return refuse() }
+            text.append(c)
+        case .space:
+            if let allowed, !allowed.contains(" ") { return refuse() }
+            text.append(" ")
+        case .backspace:
+            guard !text.isEmpty else { return refuse() }
+            text.removeLast()
+        case .done:
+            haptics.confirm()
+            onDone()
+            return
+        }
+        pressTick &+= 1
+        haptics.move()
+    }
+
+    /// Refused input (edge of the grid, a disallowed character, deleting nothing).
+    private func refuse() {
+        boundaryTick &+= 1
+        haptics.boundary()
+    }
+}
+#endif

clients/apple/Sources/PunktfunkClient/Home/GamepadMenuList.swift

@@ -0,0 +1,178 @@
+// The vertical sibling of GamepadCarousel (iOS/iPadOS/macOS): a controller-driven focus list for
+// the gamepad UI's form-like screens (GamepadSettingsView, GamepadAddHostView). Up/down moves a
+// focus bar through the rows, left/right adjusts the focused row's value, A activates it, B backs
+// out. The CALLER owns each row's look (it gets the focused flag); this component owns the focus
+// cursor, controller polling, haptics, and keeping the focused row scrolled into view.
+//
+// Unlike the carousel there is no snapping and no `.scrollPosition` two-way binding to fight: the
+// cursor is plainly authoritative, the scroll view just chases it with `scrollTo`. Touch stays a
+// first-class fallback — tapping a row focuses AND activates it (rows are always fully visible, so
+// the carousel's "first tap re-centers" step would only add friction here), and free finger
+// scrolling is never hijacked back to the focused row until the next controller move.
+//
+// Feedback is dual-channel like the carousel: `.sensoryFeedback` ticks the DEVICE Taptic engine,
+// `MenuHaptics` ticks the CONTROLLER. Moves and value changes get the crisp detent; a refused
+// move at either end gets the dull boundary thud plus a short vertical recoil.
+
+import PunktfunkKit
+import SwiftUI
+#if os(iOS) || os(macOS)
+
+struct GamepadMenuList<Item: Identifiable, Row: View>: View where Item.ID: Hashable {
+    let items: [Item]
+    /// Output only: the list WRITES the focused item's id here (e.g. for a caller's hint bar).
+    @Binding var focusID: Item.ID?
+    /// Left/right on the focused row. Return whether the value actually changed — true plays the
+    /// move detent, false the boundary thud (end of a clamped range, or nothing to adjust).
+    var onAdjust: ((Item, Int) -> Bool)?
+    /// A → activate the focused row (toggle it, open it, run it — the caller decides).
+    let onActivate: (Item) -> Void
+    /// B → back/dismiss; nil disables it.
+    var onBack: (() -> Void)?
+    /// Whether this list currently owns controller input — same handoff contract as
+    /// GamepadCarousel's `isActive` (a covered screen must stop polling the shared pad).
+    var isActive: Bool = true
+    @ViewBuilder let row: (Item, _ focused: Bool) -> Row
+
+    @State private var input = GamepadMenuInput(manager: .shared)
+    @State private var haptics = MenuHaptics(manager: .shared)
+    /// Authoritative focus cursor (index into `items`).
+    @State private var cursor = 0
+    /// A short vertical recoil when a move is refused at a list end.
+    @State private var bumpOffset: CGFloat = 0
+    /// `.sensoryFeedback` counters (see GamepadCarousel): device ticks for activate / value-change
+    /// / end-stop events; moves trigger on `cursor` itself.
+    @State private var activateTick = 0
+    @State private var adjustTick = 0
+    @State private var boundaryTick = 0
+
+    var body: some View {
+        ScrollViewReader { proxy in
+            ScrollView(.vertical) {
+                LazyVStack(spacing: 6) {
+                    ForEach(Array(items.enumerated()), id: \.element.id) { idx, item in
+                        row(item, idx == cursor && isActive)
+                            .contentShape(Rectangle())
+                            .onTapGesture { tap(idx) }
+                            .id(item.id)
+                    }
+                }
+                .padding(.vertical, 10)
+            }
+            // .never, not .hidden — macOS's "always show scroll bars" setting overrides .hidden.
+            .scrollIndicators(.never)
+            .offset(y: bumpOffset)
+            .onChange(of: cursor) { _, newValue in
+                guard newValue >= 0, newValue < items.count else { return }
+                withAnimation(.easeOut(duration: 0.2)) {
+                    proxy.scrollTo(items[newValue].id)
+                }
+            }
+        }
+        .sensoryFeedback(.selection, trigger: cursor)
+        .sensoryFeedback(.selection, trigger: adjustTick)
+        .sensoryFeedback(.impact(weight: .medium), trigger: activateTick)
+        .sensoryFeedback(.impact(flexibility: .rigid, intensity: 0.7), trigger: boundaryTick)
+        .onAppear {
+            reconcile()
+            wire()
+            if isActive { input.start() }
+        }
+        .onDisappear {
+            input.stop()
+            haptics.stop()
+        }
+        .onChange(of: isActive) { _, active in
+            if active {
+                wire()
+                input.start()
+            } else {
+                input.stop()
+                haptics.stop()
+            }
+        }
+        // Re-seed a dropped focus AND re-wire the input callbacks so they capture the current
+        // `items` value (a plain array — it would otherwise go stale in the stored closures).
+        .onChange(of: items.map(\.id)) { _, _ in
+            reconcile()
+            wire()
+        }
+    }
+
+    // MARK: - Input wiring
+
+    private func wire() {
+        input.onMove = { direction in
+            switch direction {
+            case .up: step(by: -1)
+            case .down: step(by: 1)
+            case .left: adjust(by: -1)
+            case .right: adjust(by: 1)
+            }
+        }
+        input.onConfirm = { activate() }
+        input.onBack = onBack
+    }
+
+    private func step(by delta: Int) {
+        guard !items.isEmpty else { return }
+        let target = cursor + delta
+        guard target >= 0, target < items.count else { return boundaryBump(forward: delta > 0) }
+        cursor = target
+        focusID = items[target].id
+        haptics.move()
+    }
+
+    private func adjust(by delta: Int) {
+        guard let onAdjust, cursor >= 0, cursor < items.count else { return }
+        if onAdjust(items[cursor], delta) {
+            adjustTick &+= 1
+            haptics.move()
+        } else {
+            boundaryTick &+= 1
+            haptics.boundary()
+        }
+    }
+
+    private func activate() {
+        guard cursor >= 0, cursor < items.count else { return }
+        activateTick &+= 1
+        haptics.confirm()
+        onActivate(items[cursor])
+    }
+
+    /// Touch fallback: a tap focuses the row and activates it in one go.
+    private func tap(_ idx: Int) {
+        guard idx >= 0, idx < items.count else { return }
+        if cursor != idx {
+            cursor = idx
+            focusID = items[idx].id
+        }
+        activate()
+    }
+
+    /// Keep `cursor`/`focusID` consistent with `items`: seed on appear; on a list change keep the
+    /// same focused item when it survives, else clamp the cursor into range.
+    private func reconcile() {
+        guard !items.isEmpty else {
+            cursor = 0
+            if focusID != nil { focusID = nil }
+            return
+        }
+        if let id = focusID, let idx = items.firstIndex(where: { $0.id == id }) {
+            cursor = idx
+        } else {
+            cursor = min(max(cursor, 0), items.count - 1)
+            focusID = items[cursor].id
+        }
+    }
+
+    private func boundaryBump(forward: Bool) {
+        boundaryTick &+= 1
+        haptics.boundary()
+        let recoil: CGFloat = forward ? -14 : 14
+        withAnimation(.spring(response: 0.16, dampingFraction: 0.42)) { bumpOffset = recoil }
+        withAnimation(.spring(response: 0.34, dampingFraction: 0.7).delay(0.1)) { bumpOffset = 0 }
+    }
+}
+#endif

clients/apple/Sources/PunktfunkClient/Home/HomeView.swift

@@ -137,17 +137,6 @@ struct HomeView: View {
         }
         #endif
         #endif
-        .alert(
-            "Connection failed",
-            isPresented: Binding(
-                get: { model.errorMessage != nil },
-                set: { if !$0 { model.errorMessage = nil } }
-            )
-        ) {
-            Button("OK", role: .cancel) {}
-        } message: {
-            Text(model.errorMessage ?? "")
-        }
     }
 
     // MARK: - Cards
@@ -156,7 +145,7 @@ struct HomeView: View {
         let onBrowseLibrary: (() -> Void)? = libraryEnabled ? { libraryTarget = host } : nil
         return HostCardView(
             host: host,
-            isOnline: isOnline(host),
+            isOnline: discovery.advertises(host),
             isConnecting: model.phase == .connecting && model.activeHost?.id == host.id,
             isMostRecent: host.id == mostRecentHostID,
             isBusy: model.isBusy,
@@ -186,18 +175,10 @@ struct HomeView: View {
         .padding(.top, store.hosts.isEmpty ? 0 : 8)
     }
 
-    /// A saved host is "online" iff a live mDNS advert currently matches it (see
-    /// `StoredHost.matches`). Recomputed on every discovery change (the @Published set), so the
-    /// dot tracks hosts appearing/leaving the network live.
-    private func isOnline(_ host: StoredHost) -> Bool {
-        discovery.hosts.contains { host.matches($0) }
-    }
-
-    /// Discovered hosts not already saved — the saved grid shows the rest, so this section only
-    /// surfaces genuinely-new hosts on the network. Same match as the online dot, so a saved host
-    /// whose IP changed (still fingerprint-matched) doesn't also appear here as a stranger.
+    /// Discovered hosts not already saved (see `HostDiscovery.unsaved` — shared with the gamepad
+    /// launcher so both screens classify hosts identically).
     private var discoveredUnsaved: [DiscoveredHost] {
-        discovery.hosts.filter { d in !store.hosts.contains { $0.matches(d) } }
+        discovery.unsaved(among: store.hosts)
     }
 
     /// The host of the most recent session — its card carries the accent ring.

clients/apple/Sources/PunktfunkClient/Home/LibraryCoverflowView.swift

@@ -0,0 +1,148 @@
+// The gamepad-driven presentation of the game library (iOS/iPadOS/macOS — see LibraryView's
+// `gamepadUIActive` branch): a classic coverflow instead of the touch grid. All the
+// scrolling/snapping/navigation/haptics live in GamepadCarousel; this file is the coverflow card
+// (poster + the 3D recede treatment via `.scrollTransition`), the "now focused" detail panel, and
+// the controller-glyph hints. A steps through covers, A launches the centered title, B closes, and
+// the shoulders (L1/R1) jump a handful at a time through a long library.
+//
+// Layout discipline (so nothing is EVER clipped, portrait or landscape): the gradient is a
+// `.background` modifier — NOT a ZStack sibling — because an `.ignoresSafeArea()` sibling expands the
+// stack to full-screen and hands the GeometryReader the full height, laying content out under the
+// status bar / home indicator. As a background it draws behind without affecting layout, so the
+// GeometryReader is sized to the safe area, and the controller-glyph hints are pinned inside it with
+// `.safeAreaInset(.bottom, alignment: .leading)`. Cover size is then derived from the height that
+// remains, so a tall 2:3 poster + the detail line always fit.
+
+import PunktfunkKit
+import SwiftUI
+#if os(iOS) || os(macOS)
+import GameController
+
+struct LibraryCoverflowView: View {
+    let games: [GameEntry]
+    let imageSession: URLSession?
+    var onLaunch: ((String) -> Void)?
+    /// Button B (back) — dismisses the library screen. No touch equivalent needed here (the toolbar
+    /// Close button already covers that); this is what makes gamepad-only exit possible.
+    var onDismiss: (() -> Void)?
+
+    #if os(iOS)
+    /// `.compact` in a landscape phone window — drives a tighter poster so everything still fits.
+    @Environment(\.verticalSizeClass) private var vSizeClass
+
+    private var compact: Bool { vSizeClass == .compact }
+    #else
+    private let compact = false // no size classes on macOS
+    #endif
+    @State private var selection: String?
+
+    var body: some View {
+        GeometryReader { geo in
+            content(for: geo.size)
+        }
+        .safeAreaInset(edge: .bottom, alignment: .leading, spacing: 0) {
+            GamepadHintBar(hints: hints)
+                .padding(.leading, 22)
+                .padding(.vertical, compact ? 6 : 10)
+        }
+        .background { GamepadScreenBackground() }
+    }
+
+    @ViewBuilder private func content(for size: CGSize) -> some View {
+        // Fit the tallest poster into the height the detail line + paddings leave (the hints are a
+        // safe-area inset, already out of this budget) — capped so it never dwarfs a large iPad and
+        // clamped by width on a narrow screen.
+        let reserved: CGFloat = compact ? 72 : 96 // detail line + spacers
+        let coverHeight = min(360, min(max(140, size.height - reserved), size.width * 0.9))
+        let coverWidth = coverHeight * 2 / 3
+
+        VStack(spacing: 0) {
+            Spacer(minLength: 4)
+            carousel(coverWidth: coverWidth, coverHeight: coverHeight)
+            detailPanel
+                .padding(.top, 12)
+            Spacer(minLength: 4)
+        }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+    }
+
+    private func carousel(coverWidth: CGFloat, coverHeight: CGFloat) -> some View {
+        GamepadCarousel(
+            items: games,
+            selection: $selection,
+            itemWidth: coverWidth,
+            spacing: 34,
+            onActivate: { onLaunch?($0.id) },
+            onBack: { onDismiss?() },
+            shoulderJump: 5
+        ) { game in
+            cover(game, width: coverWidth, height: coverHeight)
+        }
+        .frame(height: coverHeight + 44)
+    }
+
+    /// One cover + the coverflow recede. Every continuous visual reads the scroll view's own
+    /// per-frame `phase` (real distance-from-centered), so the tilt tracks what's actually on screen
+    /// mid-scroll. `.shadow` isn't a `VisualEffect`, so it's baked constant into the card; the
+    /// scale/rotation/opacity ramp already makes the centered cover prominent.
+    private func cover(_ game: GameEntry, width: CGFloat, height: CGFloat) -> some View {
+        PosterImage(candidates: game.art.posterCandidates, title: game.title, session: imageSession)
+            .frame(width: width, height: height)
+            .clipShape(RoundedRectangle(cornerRadius: 16, style: .continuous))
+            .overlay(alignment: .topLeading) { StoreBadge(isCustom: game.isCustom) }
+            .overlay {
+                RoundedRectangle(cornerRadius: 16, style: .continuous)
+                    .strokeBorder(.white.opacity(0.12), lineWidth: 1)
+            }
+            .shadow(color: .black.opacity(0.5), radius: 16, y: 12)
+            .scrollTransition { content, phase in
+                let v = phase.value
+                let d = CGFloat(min(abs(v), 1))
+                let scale = 1 - d * 0.24
+                let rot = v * -38
+                let anchor: UnitPoint = v < 0 ? .trailing : .leading
+                let bright = Double(-d * 0.22)
+                let fade = Double(1 - d * 0.38)
+                return content
+                    .scaleEffect(scale)
+                    .rotation3DEffect(
+                        .degrees(rot), axis: (x: 0, y: 1, z: 0), anchor: anchor, perspective: 0.55)
+                    .brightness(bright)
+                    .opacity(fade)
+            }
+    }
+
+    /// The centered title + store tag — empty (not hidden) so the layout doesn't jump.
+    @ViewBuilder private var detailPanel: some View {
+        let game = games.first { $0.id == selection }
+        VStack(spacing: 6) {
+            Text(game?.title ?? " ")
+                .font(.geist(compact ? 22 : 25, .bold, relativeTo: .title))
+                .foregroundStyle(.white)
+                .lineLimit(1)
+                .minimumScaleFactor(0.75)
+                .multilineTextAlignment(.center)
+            if let game {
+                Text(game.isCustom ? "CUSTOM" : "STEAM")
+                    .font(.geist(11, .semibold, relativeTo: .caption2))
+                    .tracking(1.2)
+                    .foregroundStyle(.white.opacity(0.5))
+            }
+        }
+        .frame(maxWidth: .infinity)
+        .padding(.horizontal, 24)
+        .animation(.smooth(duration: 0.25), value: selection)
+    }
+
+    // MARK: - Hint bar (pinned bottom-leading via safeAreaInset)
+
+    private var hints: [GamepadHint] {
+        var hints: [GamepadHint] = []
+        if onLaunch != nil {
+            hints.append(.init(glyph: buttonGlyph(\.buttonA, fallback: "a.circle"), text: "Launch"))
+        }
+        hints.append(.init(glyph: buttonGlyph(\.buttonB, fallback: "b.circle"), text: "Close"))
+        return hints
+    }
+}
+#endif

clients/apple/Sources/PunktfunkClient/Home/LibraryView.swift

@@ -12,10 +12,25 @@ struct LibraryView: View {
     /// Tapping a title starts a session that asks the host to launch it (the library id is passed
     /// through). `nil` ⇒ browse-only (cards aren't tappable).
     var onLaunch: ((String) -> Void)? = nil
+    @Environment(\.dismiss) private var dismiss
 
     @State private var games: [GameEntry] = []
     @State private var loading = false
     @State private var errorText: String?
+    /// Authenticated session for cover-art fetches (the same paired identity + host pinning as the
+    /// list fetch, reused across every poster in the grid). Built alongside `games` in `load()`;
+    /// torn down on disappear since it isn't one-shot like `LibraryClient.fetch`'s own session.
+    @State private var imageSession: URLSession?
+    #if os(iOS) || os(macOS)
+    // Gamepad-driven browsing (iOS/iPadOS/macOS) — see ContentView's identical gate. tvOS keeps
+    // its existing plain-grid presentation of this same view unchanged.
+    @ObservedObject private var gamepadManager = GamepadManager.shared
+    @AppStorage(DefaultsKey.gamepadUIEnabled) private var gamepadUIEnabled = true
+    private var gamepadUIActive: Bool {
+        GamepadUIEnvironment.isActive(
+            gamepadConnected: gamepadManager.active != nil, enabledSetting: gamepadUIEnabled)
+    }
+    #endif
 
     var body: some View {
         content
@@ -29,8 +44,20 @@ struct LibraryView: View {
                 #else
                 ToolbarItem(placement: .primaryAction) { reloadButton }
                 #endif
+                // A gamepad-only user can't swipe-to-dismiss the sheet this view is presented in
+                // (ContentView's `.sheet(item: $libraryTarget)`) — give it a focusable, dpad-reachable
+                // Close action. tvOS already has its own pushed-navigation back (Menu button).
+                #if !os(tvOS)
+                ToolbarItem(placement: .cancellationAction) {
+                    Button("Close") { dismiss() }
+                }
+                #endif
             }
             .task { await load() }
+            .onDisappear {
+                imageSession?.finishTasksAndInvalidate()
+                imageSession = nil
+            }
     }
 
     @ViewBuilder private var content: some View {
@@ -41,9 +68,19 @@ struct LibraryView: View {
             errorState(errorText)
         } else if games.isEmpty {
             emptyState
+        } else {
+            #if os(iOS) || os(macOS)
+            if gamepadUIActive {
+                LibraryCoverflowView(
+                    games: games, imageSession: imageSession, onLaunch: onLaunch,
+                    onDismiss: { dismiss() })
             } else {
                 grid
             }
+            #else
+            grid
+            #endif
+        }
     }
 
     private var grid: some View {
@@ -51,10 +88,10 @@ struct LibraryView: View {
             LazyVGrid(columns: columns, spacing: 18) {
                 ForEach(games) { game in
                     if let onLaunch {
-                        Button { onLaunch(game.id) } label: { GameCard(game: game) }
+                        Button { onLaunch(game.id) } label: { GameCard(game: game, imageSession: imageSession) }
                             .buttonStyle(.plain)
                     } else {
-                        GameCard(game: game)
+                        GameCard(game: game, imageSession: imageSession)
                     }
                 }
             }
@@ -125,6 +162,13 @@ struct LibraryView: View {
                 certPEM: identity.certPEM,
                 keyPEM: identity.keyPEM,
                 hostFingerprint: current.pinnedSHA256)
+            imageSession?.finishTasksAndInvalidate()
+            imageSession = try LibraryImageLoader.session(
+                address: current.address,
+                port: current.effectiveMgmtPort,
+                certPEM: identity.certPEM,
+                keyPEM: identity.keyPEM,
+                hostFingerprint: current.pinnedSHA256)
         } catch {
             games = []
             errorText = (error as? LibraryError)?.errorDescription ?? error.localizedDescription
@@ -137,66 +181,19 @@ struct LibraryView: View {
 /// (portrait → header → hero) and finally a text placeholder.
 private struct GameCard: View {
     let game: GameEntry
+    let imageSession: URLSession?
 
     var body: some View {
         VStack(alignment: .leading, spacing: 6) {
-            PosterImage(candidates: game.art.posterCandidates, title: game.title)
+            PosterImage(candidates: game.art.posterCandidates, title: game.title, session: imageSession)
                 .aspectRatio(2.0 / 3.0, contentMode: .fit)
                 .frame(maxWidth: .infinity)
                 .clipShape(RoundedRectangle(cornerRadius: 10, style: .continuous))
-                .overlay(alignment: .topLeading) { storeBadge }
+                .overlay(alignment: .topLeading) { StoreBadge(isCustom: game.isCustom) }
             Text(game.title)
                 .font(.geist(12, relativeTo: .caption))
                 .lineLimit(2)
                 .foregroundStyle(.secondary)
         }
     }
-
-    private var storeBadge: some View {
-        Text(game.isCustom ? "Custom" : "Steam")
-            .font(.geist(11, .semibold, relativeTo: .caption2))
-            .padding(.horizontal, 6)
-            .padding(.vertical, 3)
-            .background(.ultraThinMaterial, in: Capsule())
-            .padding(6)
-    }
-}
-
-/// Sequentially tries cover-art URLs, advancing past any that fail to load, then a placeholder.
-private struct PosterImage: View {
-    let candidates: [URL]
-    let title: String
-    @State private var index = 0
-
-    var body: some View {
-        if index < candidates.count {
-            AsyncImage(url: candidates[index]) { phase in
-                switch phase {
-                case .success(let image):
-                    image.resizable().scaledToFill()
-                case .failure:
-                    // Advance to the next candidate on the next render pass.
-                    Color.clear.onAppear { index += 1 }
-                case .empty:
-                    ZStack { placeholder; ProgressView() }
-                @unknown default:
-                    placeholder
-                }
-            }
-            .id(index) // recreate AsyncImage so it loads the newly-selected URL
-        } else {
-            placeholder
-        }
-    }
-
-    private var placeholder: some View {
-        ZStack {
-            Rectangle().fill(.quaternary)
-            Text(title)
-                .font(.geist(17, .semibold, relativeTo: .headline))
-                .multilineTextAlignment(.center)
-                .foregroundStyle(.secondary)
-                .padding(8)
-        }
-    }
 }

clients/apple/Sources/PunktfunkClient/Home/LibraryWidgets.swift

@@ -0,0 +1,95 @@
+// Reusable library widgets, shared by the touch grid (LibraryView's `GameCard`) and the gamepad
+// coverflow (LibraryCoverflowView's cover cell).
+
+import PunktfunkKit
+import SwiftUI
+#if canImport(UIKit)
+import UIKit
+#elseif canImport(AppKit)
+import AppKit
+#endif
+
+/// The store-provenance badge (Steam vs. a user-curated custom entry) overlaid on a poster —
+/// shared by the touch grid's `GameCard` and the gamepad coverflow's cover cell.
+struct StoreBadge: View {
+    let isCustom: Bool
+
+    var body: some View {
+        Text(isCustom ? "Custom" : "Steam")
+            .font(.geist(11, .semibold, relativeTo: .caption2))
+            .padding(.horizontal, 6)
+            .padding(.vertical, 3)
+            .background(.ultraThinMaterial, in: Capsule())
+            .padding(6)
+    }
+}
+
+#if canImport(UIKit)
+private typealias PlatformImage = UIImage
+#elseif canImport(AppKit)
+private typealias PlatformImage = NSImage
+#endif
+
+private extension Image {
+    init(platformImage: PlatformImage) {
+        #if canImport(UIKit)
+        self.init(uiImage: platformImage)
+        #elseif canImport(AppKit)
+        self.init(nsImage: platformImage)
+        #endif
+    }
+}
+
+/// Sequentially tries cover-art URLs over `session` (so a paired client can reach the host's own
+/// art proxy, not just public CDNs — see `LibraryImageLoader`), advancing past any that fail to
+/// load, then a placeholder. The loaded image is hard-clipped to fill the card's actual frame
+/// regardless of its own aspect ratio: a portrait capsule fills it as intended, but a fallback
+/// banner (wide hero/header art, used when a title has no portrait capsule) would otherwise report
+/// a much wider intrinsic size than the card and overflow into neighboring cards. Not `private` —
+/// the gamepad coverflow (`LibraryCoverflowView`) reuses it directly rather than re-fetching art.
+struct PosterImage: View {
+    let candidates: [URL]
+    let title: String
+    let session: URLSession?
+    @State private var index = 0
+    @State private var image: PlatformImage?
+
+    var body: some View {
+        Group {
+            if let image {
+                Image(platformImage: image)
+                    .resizable()
+                    .scaledToFill()
+            } else if index < candidates.count {
+                ZStack { placeholder; ProgressView() }
+            } else {
+                placeholder
+            }
+        }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+        .clipped()
+        .task(id: index) { await loadCurrent() }
+    }
+
+    private func loadCurrent() async {
+        guard index < candidates.count else { return }
+        guard let session, let data = try? await session.data(from: candidates[index]).0,
+              let loaded = PlatformImage(data: data)
+        else {
+            index += 1 // advance to the next candidate (or past the end → placeholder)
+            return
+        }
+        image = loaded
+    }
+
+    private var placeholder: some View {
+        ZStack {
+            Rectangle().fill(.quaternary)
+            Text(title)
+                .font(.geist(17, .semibold, relativeTo: .headline))
+                .multilineTextAlignment(.center)
+                .foregroundStyle(.secondary)
+                .padding(8)
+        }
+    }
+}

clients/apple/Sources/PunktfunkClient/Screenshots/ScreenshotScenes.swift

@@ -170,7 +170,10 @@ private struct ShotHUD: View {
                 Text("5120×1440@240  240 fps  812.4 Mb/s")
                     .font(.system(.caption, design: .monospaced))
             }
-            Text("capture→client 1.3/2.1 ms p50/p95")
+            Text("end-to-end 2.9 ms p50 · 3.8 p95 · capture→on-glass")
+                .font(.system(.caption2, design: .monospaced))
+                .foregroundStyle(.secondary)
+            Text("= host+network 1.3 + decode 0.7 + display 0.9")
                 .font(.system(.caption2, design: .monospaced))
                 .foregroundStyle(.secondary)
             #if os(macOS)

clients/apple/Sources/PunktfunkClient/Session/HUDPlacement.swift

@@ -0,0 +1,35 @@
+// The HUD-corner model persisted by Settings and read wherever the overlay is placed
+// (ContentView, StreamHUDView).
+
+import SwiftUI
+
+/// Which corner the HUD overlay occupies (persisted as `DefaultsKey.hudPlacement`). The raw
+/// values are stable on disk — rename the cases freely, never the strings.
+enum HUDPlacement: String, CaseIterable, Identifiable {
+    case topLeading, topTrailing, bottomLeading, bottomTrailing
+
+    var id: String { rawValue }
+
+    /// SwiftUI overlay alignment for `.overlay(alignment:)`.
+    var alignment: Alignment {
+        switch self {
+        case .topLeading: return .topLeading
+        case .topTrailing: return .topTrailing
+        case .bottomLeading: return .bottomLeading
+        case .bottomTrailing: return .bottomTrailing
+        }
+    }
+
+    /// The HUD's own stack hugs the screen edge it sits against, so its text aligns outward.
+    var isTrailing: Bool { self == .topTrailing || self == .bottomTrailing }
+
+    /// User-facing corner label.
+    var label: String {
+        switch self {
+        case .topLeading: return "Top Left"
+        case .topTrailing: return "Top Right"
+        case .bottomLeading: return "Bottom Left"
+        case .bottomTrailing: return "Bottom Right"
+        }
+    }
+}

clients/apple/Sources/PunktfunkClient/Session/SessionModel.swift

@@ -59,29 +59,62 @@ final class SessionModel: ObservableObject {
     @Published var fps = 0
     @Published var mbps = 0.0
     @Published var totalFrames = 0
-    /// Capture→client-receipt latency (ms), skew-corrected across machines via the connect-time
-    /// clock offset — p50/p95 for the HUD. `latencyValid` is false until the first sample drains
-    /// (and whenever no host frames arrived in the last interval). `latencySkewCorrected` = the host
+    /// The unified latency stages (design/stats-unification.md), ms per 1 s window. `host+network`
+    /// = capture→received, skew-corrected across machines via the connect-time clock offset: the
+    /// stage-2 HUD shows its p50 in the equation line; the stage-1 fallback shows p50/p95 as its
+    /// `capture→received` headline. `hostNetworkValid` is false until the first sample drains (and
+    /// whenever no host frames arrived in the last interval). `hostNetworkSkewCorrected` = the host
     /// answered the skew handshake (the number is cross-machine valid, not just same-host).
-    @Published var latencyP50Ms = 0.0
-    @Published var latencyP95Ms = 0.0
-    @Published var latencyValid = false
-    @Published var latencySkewCorrected = false
-    /// Capture→present (glass-to-glass, modulo the host render→capture term) — only the stage-2
-    /// presenter can stamp this (it owns decode + a CAMetalLayer/display-link present). Stays
-    /// invalid under stage-1, where the layer presents internally with no per-frame callback.
-    @Published var presentLatencyP50Ms = 0.0
-    @Published var presentLatencyP95Ms = 0.0
-    @Published var presentLatencyValid = false
-    @Published var presentLatencySkewCorrected = false
+    @Published var hostNetworkP50Ms = 0.0
+    @Published var hostNetworkP95Ms = 0.0
+    @Published var hostNetworkValid = false
+    @Published var hostNetworkSkewCorrected = false
+    /// Phase 2 of the same stage: `host+network` split into its two terms via the host's per-AU
+    /// 0xCF timing reports (host = capture→fully-sent as the host measured it, network = the
+    /// remainder), matched to receipts by pts in `latencySplit`. `splitValid` is false whenever
+    /// no timing matched in the window — an old host that never emits the plane, or heavy 0xCF
+    /// loss — and the HUD then falls back to the combined `host+network` term.
+    @Published var hostP50Ms = 0.0
+    @Published var networkP50Ms = 0.0
+    @Published var splitValid = false
+    /// End-to-end = capture→on-glass, measured directly per frame (never summed from the stages) —
+    /// the HUD headline. Only the stage-2 presenter can stamp it (it owns decode + a
+    /// CAMetalLayer/display-link present); stays invalid under stage-1, where the layer presents
+    /// internally with no per-frame callback.
+    @Published var endToEndP50Ms = 0.0
+    @Published var endToEndP95Ms = 0.0
+    @Published var endToEndValid = false
+    @Published var endToEndSkewCorrected = false
+    /// The client-local stage terms of the HUD's equation line (single clock, no skew; p50 only):
+    /// decode = received→decoded, display = decoded→on-glass (ring wait + render + vsync — the
+    /// term the stage-2 presenter exists to shorten).
+    @Published var decodeP50Ms = 0.0
+    @Published var decodeValid = false
+    @Published var displayP50Ms = 0.0
+    @Published var displayValid = false
+    /// Unrecoverable network frame drops in the last window (FEC couldn't rebuild them) and their
+    /// share of frames offered, `lost/(received+lost)`. The HUD hides the line while zero.
+    @Published var lostFrames = 0
+    @Published var lostPct = 0.0
     /// Mirrors StreamView's capture state (it owns the input capture; this drives the
     /// HUD's "click to capture" / "⌘⎋ releases" hint).
     @Published var mouseCaptured = false
 
     let meter = FrameMeter()
+    /// Capture→received (the host+network stage), fed per AU at receipt by the stream view's
+    /// onFrame — under both presenters.
     let latency = LatencyMeter()
-    /// Fed by the stage-2 presenter's display link (capture→present). Passed to StreamView.
-    let presentLatency = LatencyMeter()
+    /// The host/network split of that same stage: onFrame also records (pts, interval) receipts
+    /// here, and the 1 s stats tick drains the connection's 0xCF host timings into it — under
+    /// both presenters (the receipt path is presenter-independent).
+    let latencySplit = HostNetworkSplitter()
+    /// The stage-2 meters, passed to StreamView: end-to-end (capture→on-glass, stamped at
+    /// present), decode (received→decoded), display (decoded→on-glass).
+    let endToEnd = LatencyMeter()
+    let decodeStage = LatencyMeter()
+    let displayStage = LatencyMeter()
+    /// Cumulative reassembler-drop counter at the last stats drain (per-window `lost` delta).
+    private var lastFramesDropped: UInt64 = 0
     private var statsTimer: Timer?
     private var audio: SessionAudio?
     private var gamepadCapture: GamepadCapture?
@@ -108,6 +141,7 @@ final class SessionModel: ObservableObject {
                  bitrateKbps: UInt32 = 0,
                  audioChannels: UInt8 = 2,
                  hdrEnabled: Bool = true,
+                 preferredCodec: UInt8 = 0,
                  launchID: String? = nil,
                  allowTofu: Bool = false,
                  autoTrust: Bool = false,
@@ -155,12 +189,17 @@ final class SessionModel: ObservableObject {
             if want444, canDecode444 {
                 videoCaps |= PunktfunkConnection.videoCap444
             }
+            // This client's VideoToolbox path decodes H.264 and HEVC (AV1 isn't wired — hosts don't
+            // emit it on the native path yet). The host resolves the emitted codec from these + the
+            // soft `preferredCodec`; `resolvedCodec` reflects what it chose.
+            let videoCodecs = PunktfunkConnection.codecH264 | PunktfunkConnection.codecHEVC
             let result = Result { try PunktfunkConnection(
                 host: host.address, port: host.port,
                 width: width, height: height, refreshHz: hz,
                 pinSHA256: pin, identity: identity, compositor: compositor,
                 gamepad: gamepad, bitrateKbps: bitrateKbps, videoCaps: videoCaps,
-                audioChannels: audioChannels, launchID: launchID,
+                audioChannels: audioChannels,
+                videoCodecs: videoCodecs, preferredCodec: preferredCodec, launchID: launchID,
                 // Delegated approval: the host holds this connect open until the operator approves
                 // it (~180 s) — outwait that window so a slow approval still lands here. Normal
                 // connects keep the snappy default.
@@ -268,7 +307,13 @@ final class SessionModel: ObservableObject {
         phase = .idle
         fps = 0
         mbps = 0
-        latencyValid = false
+        hostNetworkValid = false
+        splitValid = false
+        endToEndValid = false
+        decodeValid = false
+        displayValid = false
+        lostFrames = 0
+        lostPct = 0
         mouseCaptured = false
     }
 
@@ -293,6 +338,7 @@ final class SessionModel: ObservableObject {
         audio.start(
             speakerUID: defaults.string(forKey: DefaultsKey.speakerUID) ?? "",
             micUID: defaults.string(forKey: DefaultsKey.micUID) ?? "",
+            micChannel: defaults.integer(forKey: DefaultsKey.micChannel),
             micEnabled: defaults.object(forKey: DefaultsKey.micEnabled) as? Bool ?? true)
         self.audio = audio
         // Gamepads: forward GamepadManager's active controller as pad 0 and render the
@@ -308,6 +354,8 @@ final class SessionModel: ObservableObject {
     }
 
     private func startStatsTimer() {
+        lastFramesDropped = 0 // a fresh connection's cumulative drop counter starts at 0
+        latencySplit.reset() // no stale receipts/samples from a previous session
         let timer = Timer(timeInterval: 1.0, repeats: true) { [weak self] _ in
             guard let self else { return }
             Task { @MainActor in
@@ -315,21 +363,60 @@ final class SessionModel: ObservableObject {
                 self.fps = frames
                 self.mbps = Double(bytes) * 8 / 1_000_000
                 self.totalFrames = total
+                // Per-window `lost` = the delta of the connector's cumulative reassembler-drop
+                // counter (0 after close — treat a rewind as no loss rather than underflowing).
+                let dropped = self.connection?.framesDropped() ?? 0
+                let lost = dropped >= self.lastFramesDropped
+                    ? Int(dropped - self.lastFramesDropped) : 0
+                self.lastFramesDropped = dropped
+                self.lostFrames = lost
+                self.lostPct = lost > 0 ? Double(lost) / Double(frames + lost) * 100 : 0
                 if let lat = self.latency.drain() {
-                    self.latencyP50Ms = lat.p50Ms
-                    self.latencyP95Ms = lat.p95Ms
-                    self.latencySkewCorrected = lat.skewCorrected
-                    self.latencyValid = true
+                    self.hostNetworkP50Ms = lat.p50Ms
+                    self.hostNetworkP95Ms = lat.p95Ms
+                    self.hostNetworkSkewCorrected = lat.skewCorrected
+                    self.hostNetworkValid = true
                 } else {
-                    self.latencyValid = false
+                    self.hostNetworkValid = false
                 }
-                if let p = self.presentLatency.drain() {
-                    self.presentLatencyP50Ms = p.p50Ms
-                    self.presentLatencyP95Ms = p.p95Ms
-                    self.presentLatencySkewCorrected = p.skewCorrected
-                    self.presentLatencyValid = true
+                // Phase 2: drain the window's per-AU host timings (0xCF) into the splitter —
+                // non-blocking, bounded (a 240 fps window is ~240 reports; the cap only guards
+                // a pathological burst). `try?` flattens (SE-0230); a throw (.closed during
+                // teardown) just ends the drain. An old host never emits any → splitValid stays
+                // false and the HUD keeps the combined host+network term.
+                if let conn = self.connection {
+                    var burst = 0
+                    while burst < 1024, let t = try? conn.nextHostTiming(timeoutMs: 0) {
+                        self.latencySplit.noteHostTiming(ptsNs: t.ptsNs, hostUs: t.hostUs)
+                        burst += 1
+                    }
+                }
+                if let s = self.latencySplit.drain() {
+                    self.hostP50Ms = s.hostP50Ms
+                    self.networkP50Ms = s.networkP50Ms
+                    self.splitValid = true
                 } else {
-                    self.presentLatencyValid = false
+                    self.splitValid = false
+                }
+                if let e = self.endToEnd.drain() {
+                    self.endToEndP50Ms = e.p50Ms
+                    self.endToEndP95Ms = e.p95Ms
+                    self.endToEndSkewCorrected = e.skewCorrected
+                    self.endToEndValid = true
+                } else {
+                    self.endToEndValid = false
+                }
+                if let d = self.decodeStage.drain() {
+                    self.decodeP50Ms = d.p50Ms
+                    self.decodeValid = true
+                } else {
+                    self.decodeValid = false
+                }
+                if let d = self.displayStage.drain() {
+                    self.displayP50Ms = d.p50Ms
+                    self.displayValid = true
+                } else {
+                    self.displayValid = false
                 }
             }
         }

clients/apple/Sources/PunktfunkClient/Session/StreamHUDView.swift

@@ -0,0 +1,102 @@
+// The streaming overlay HUD: mode + fps/throughput, the unified latency lines
+// (design/stats-unification.md — end-to-end headline + the stage equation under stage-2, the
+// capture→received headline under the stage-1 fallback), the loss counter, the platform input
+// hint, and disconnect.
+
+import PunktfunkKit
+import SwiftUI
+
+struct StreamHUDView: View {
+    @ObservedObject var model: SessionModel
+    let connection: PunktfunkConnection
+    var placement: HUDPlacement = .topTrailing
+
+    var body: some View {
+        VStack(alignment: placement.isTrailing ? .trailing : .leading, spacing: 4) {
+            HStack(spacing: 6) {
+                Circle()
+                    .fill(Color.accentColor)
+                    .frame(width: 7, height: 7)
+                Text("\(connection.width)×\(connection.height)@\(connection.refreshHz)  \(model.fps) fps  \(model.mbps, specifier: "%.1f") Mb/s")
+                    .font(.system(.caption, design: .monospaced))
+            }
+            if model.endToEndValid {
+                // Stage-2: the end-to-end headline (capture→on-glass, measured directly, skew-
+                // corrected) — "(same-host clock)" when the host didn't answer the skew handshake.
+                Text("end-to-end \(model.endToEndP50Ms, specifier: "%.1f") ms p50 · \(model.endToEndP95Ms, specifier: "%.1f") p95 · capture→on-glass\(model.endToEndSkewCorrected ? "" : " (same-host clock)")")
+                    .font(.system(.caption2, design: .monospaced))
+                    .foregroundStyle(.secondary)
+                // The equation: the stages tiling the headline interval (per-window p50s —
+                // they only approximately sum to the directly-measured total). With a host
+                // that reports per-AU timings (0xCF) the first term splits into host + network
+                // (phase 2); an old host keeps the combined term.
+                if model.hostNetworkValid && model.decodeValid && model.displayValid {
+                    if model.splitValid {
+                        Text("= host \(model.hostP50Ms, specifier: "%.1f") + network \(model.networkP50Ms, specifier: "%.1f") + decode \(model.decodeP50Ms, specifier: "%.1f") + display \(model.displayP50Ms, specifier: "%.1f")")
+                            .font(.system(.caption2, design: .monospaced))
+                            .foregroundStyle(.secondary)
+                    } else {
+                        Text("= host+network \(model.hostNetworkP50Ms, specifier: "%.1f") + decode \(model.decodeP50Ms, specifier: "%.1f") + display \(model.displayP50Ms, specifier: "%.1f")")
+                            .font(.system(.caption2, design: .monospaced))
+                            .foregroundStyle(.secondary)
+                    }
+                }
+            } else if model.hostNetworkValid {
+                // Stage-1 fallback presenter: the layer decodes + presents internally with no
+                // per-frame stamp, so the honest headline ends at receipt. The host/network
+                // split still applies there (receipt is presenter-independent) — it becomes the
+                // only equation line; without it, host+network IS the whole measured interval.
+                Text("capture→received \(model.hostNetworkP50Ms, specifier: "%.1f") ms p50 · \(model.hostNetworkP95Ms, specifier: "%.1f") p95\(model.hostNetworkSkewCorrected ? "" : " (same-host clock)")")
+                    .font(.system(.caption2, design: .monospaced))
+                    .foregroundStyle(.secondary)
+                if model.splitValid {
+                    Text("= host \(model.hostP50Ms, specifier: "%.1f") + network \(model.networkP50Ms, specifier: "%.1f")")
+                        .font(.system(.caption2, design: .monospaced))
+                        .foregroundStyle(.secondary)
+                }
+            }
+            if model.lostFrames > 0 {
+                // Unrecoverable network drops this window; hidden while the link is clean.
+                // String(format:) rather than specifier interpolation: the literal % would
+                // otherwise land in the LocalizedStringKey's format string as a bogus conversion.
+                Text(String(format: "lost %d (%.1f%%)", model.lostFrames, model.lostPct))
+                    .font(.system(.caption2, design: .monospaced))
+                    .foregroundStyle(.secondary)
+            }
+            // While captured the cursor is hidden+frozen, so the button is keyboard-only
+            // (⌘⎋ or Cmd+Tab release the cursor; released, it's clickable again).
+            #if os(macOS)
+            Text(model.mouseCaptured
+                ? "⌘⎋ releases the mouse"
+                : "Click the stream to capture input")
+                .font(.geist(11, relativeTo: .caption2))
+                .foregroundStyle(.secondary)
+            #elseif os(iOS)
+            // Touch always plays directly; ⌘⎋ (hardware keyboard) toggles kb/mouse.
+            Text(model.mouseCaptured
+                ? "⌘⎋ releases keyboard & mouse"
+                : "⌘⎋ captures keyboard & mouse")
+                .font(.geist(11, relativeTo: .caption2))
+                .foregroundStyle(.secondary)
+            #endif
+            #if os(tvOS)
+            // No focusable control during play: a focusable button steals the controller's
+            // A press (the focus engine consumes it before the host sees it). Disconnect is
+            // the Siri Remote's Menu button (.onExitCommand on the stream) — just hint it.
+            Text("Press Menu to disconnect")
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+            #else
+            // ⌘D lives on the app's Stream menu (so it still works when the HUD is hidden);
+            // this button is the in-overlay, click-to-disconnect affordance.
+            Button("Disconnect (⌘D)") { model.disconnect() }
+                .font(.geist(12, relativeTo: .caption))
+            #endif
+        }
+        .padding(10)
+        // Floating HUD over live video — the canonical Liquid-Glass overlay surface (26+);
+        // falls back to .regularMaterial below 26 (see GlassStyle).
+        .glassBackground(RoundedRectangle(cornerRadius: 10))
+        .padding(10)
+    }
+}

clients/apple/Sources/PunktfunkClient/Settings/ControllerTestView.swift

@@ -255,6 +255,10 @@ struct ControllerTestView: View {
                 Toggle("Light motor (right)", isOn: $lightOn)
                 Label("Backend: \(tester.rumbleBackend)", systemImage: "waveform")
                     .font(.geist(12, relativeTo: .caption)).foregroundStyle(.secondary)
+                if let problem = tester.rumbleHealth {
+                    Label(problem, systemImage: "exclamationmark.triangle.fill")
+                        .font(.geist(12, relativeTo: .caption)).foregroundStyle(.orange)
+                }
                 Text("Toggle a motor to feel it. The host maps a game's low/high-frequency "
                     + "rumble onto these two. A DualSense is driven over raw HID (CoreHaptics "
                     + "can't reach its motors on macOS).")

clients/apple/Sources/PunktfunkClient/Settings/GamepadSettingsView.swift

@@ -0,0 +1,357 @@
+// The gamepad-driven settings screen (iOS/iPadOS/macOS): the couch-relevant subset of SettingsView,
+// restyled as a console settings page and fully navigable with a controller — up/down moves the
+// focus bar, left/right steps the focused value, A cycles/toggles it, B closes. Shown from the
+// gamepad home launcher (X); the touch SettingsView remains the full-fidelity editor (custom
+// resolutions, the log bitrate slider, debug tools), and both write the same DefaultsKey storage,
+// so values round-trip freely between the two.
+//
+// Rows are rebuilt from live @AppStorage on every render; the focus list dispatches adjust/
+// activate back here BY ROW ID (see `adjust`/`activate`), so a stored input callback can never act
+// on stale captured state. Left/right CLAMPS at a choice list's ends (the dull boundary thud tells
+// the thumb it's the last option); A always cycles forward, wrapping, so every option is reachable
+// with one button. Toggles read left = off, right = on — refusing a no-op with the same thud.
+
+import PunktfunkKit
+import SwiftUI
+#if os(iOS) || os(macOS)
+import GameController
+
+struct GamepadSettingsView: View {
+    @Environment(\.dismiss) private var dismiss
+    @AppStorage(DefaultsKey.streamWidth) private var width = 1920
+    @AppStorage(DefaultsKey.streamHeight) private var height = 1080
+    @AppStorage(DefaultsKey.streamHz) private var hz = 60
+    @AppStorage(DefaultsKey.compositor) private var compositor = 0
+    @AppStorage(DefaultsKey.gamepadType) private var gamepadType = 0
+    @AppStorage(DefaultsKey.bitrateKbps) private var bitrateKbps = 0
+    @AppStorage(DefaultsKey.audioChannels) private var audioChannels = 2
+    @AppStorage(DefaultsKey.hdrEnabled) private var hdrEnabled = true
+    @AppStorage(DefaultsKey.enable444) private var enable444 = true
+    @AppStorage(DefaultsKey.codec) private var codec = "auto"
+    @AppStorage(DefaultsKey.micEnabled) private var micEnabled = true
+    @AppStorage(DefaultsKey.hudEnabled) private var hudEnabled = true
+    @AppStorage(DefaultsKey.hudPlacement) private var hudPlacement = HUDPlacement.topTrailing.rawValue
+    @AppStorage(DefaultsKey.libraryEnabled) private var libraryEnabled = false
+    @AppStorage(DefaultsKey.gamepadUIEnabled) private var gamepadUIEnabled = true
+    @ObservedObject private var gamepads = GamepadManager.shared
+
+    #if os(iOS)
+    /// `.compact` in a landscape phone window — tighter chrome so more rows fit.
+    @Environment(\.verticalSizeClass) private var vSizeClass
+
+    private var compact: Bool { vSizeClass == .compact }
+    #else
+    private let compact = false // no size classes on macOS; the sheet is sized generously
+    #endif
+    @State private var focusID: String?
+
+    var body: some View {
+        GamepadMenuList(
+            items: rows,
+            focusID: $focusID,
+            onAdjust: { row, delta in adjust(id: row.id, by: delta) },
+            onActivate: { activate(id: $0.id) },
+            onBack: { dismiss() }
+        ) { row, focused in
+            rowView(row, focused: focused)
+                .frame(maxWidth: 620)
+                .padding(.horizontal, 24)
+        }
+        .frame(maxWidth: .infinity)
+        .safeAreaInset(edge: .top, spacing: 0) {
+            Text("Settings")
+                .font(.geist(compact ? 20 : 30, .bold, relativeTo: .title))
+                .foregroundStyle(.white)
+                .padding(.top, gamepadTitleTopPadding(compact: compact))
+                .padding(.bottom, compact ? 4 : 8)
+                .frame(maxWidth: .infinity)
+                .overlay(alignment: .trailing) { closeButton.padding(.trailing, 20) }
+                .background { GamepadTrayScrim(edge: .top) }
+        }
+        .safeAreaInset(edge: .bottom, alignment: .leading, spacing: 0) {
+            VStack(alignment: .leading, spacing: 8) {
+                Text(focusedDetail)
+                    .font(.geist(13, relativeTo: .caption))
+                    .foregroundStyle(.white.opacity(0.55))
+                    .lineLimit(2, reservesSpace: true)
+                    .animation(.smooth(duration: 0.2), value: focusID)
+                GamepadHintBar(hints: [
+                    .init(glyph: "arrow.left.and.right", text: "Adjust"),
+                    .init(glyph: buttonGlyph(\.buttonA, fallback: "a.circle"), text: "Change"),
+                    .init(glyph: buttonGlyph(\.buttonB, fallback: "b.circle"), text: "Done"),
+                ])
+            }
+            .padding(.leading, 22)
+            .padding(.trailing, 22)
+            .padding(.vertical, compact ? 6 : 10)
+            .frame(maxWidth: .infinity, alignment: .leading)
+            .background { GamepadTrayScrim(edge: .bottom) }
+        }
+        .background { GamepadScreenBackground() }
+        .onAppear {
+            gamepads.refresh()
+            gamepads.startDiscovery()
+        }
+        .onDisappear { gamepads.stopDiscovery() }
+    }
+
+    /// Touch/click fallback for closing — the controller path is B, a hardware keyboard's Esc
+    /// rides the cancel action.
+    private var closeButton: some View {
+        Button { dismiss() } label: {
+            Image(systemName: "xmark")
+                .font(.system(size: 14, weight: .semibold))
+                .foregroundStyle(.white)
+                .frame(width: 34, height: 34)
+                .glassBackground(Circle(), interactive: true)
+                .contentShape(Circle())
+        }
+        .buttonStyle(.plain)
+        .keyboardShortcut(.cancelAction)
+        .accessibilityLabel("Close settings")
+    }
+
+    // MARK: - Row rendering
+
+    private func rowView(_ row: Row, focused: Bool) -> some View {
+        VStack(alignment: .leading, spacing: 6) {
+            if let header = row.header {
+                Text(header)
+                    .font(.geist(12, .semibold, relativeTo: .caption))
+                    .tracking(1.4)
+                    .foregroundStyle(.white.opacity(0.45))
+                    .padding(.leading, 16)
+                    .padding(.top, 14)
+            }
+            HStack(spacing: 14) {
+                Image(systemName: row.icon)
+                    .font(.system(size: 17))
+                    .foregroundStyle(focused ? Color.brand : .white.opacity(0.55))
+                    .frame(width: 28)
+                Text(row.label)
+                    .font(.geist(16, .semibold, relativeTo: .body))
+                    .foregroundStyle(.white)
+                    .lineLimit(1)
+                Spacer(minLength: 12)
+                HStack(spacing: 9) {
+                    Image(systemName: "chevron.left")
+                        .font(.system(size: 12, weight: .semibold))
+                        .foregroundStyle(.white.opacity(focused ? 0.6 : 0))
+                    Text(row.value)
+                        .font(.geist(15, .medium, relativeTo: .callout))
+                        .foregroundStyle(focused ? .white : .white.opacity(0.6))
+                        .lineLimit(1)
+                    Image(systemName: "chevron.right")
+                        .font(.system(size: 12, weight: .semibold))
+                        .foregroundStyle(.white.opacity(focused ? 0.6 : 0))
+                }
+            }
+            .padding(.horizontal, 16)
+            .padding(.vertical, 13)
+            .background {
+                RoundedRectangle(cornerRadius: 14, style: .continuous)
+                    .fill(.white.opacity(focused ? 0.1 : 0))
+            }
+            .overlay {
+                RoundedRectangle(cornerRadius: 14, style: .continuous)
+                    .strokeBorder(.white.opacity(focused ? 0.22 : 0), lineWidth: 1)
+            }
+            .scaleEffect(focused ? 1.0 : 0.98)
+            .animation(.smooth(duration: 0.18), value: focused)
+        }
+    }
+
+    private var focusedDetail: String {
+        rows.first { $0.id == focusID }?.detail ?? " "
+    }
+
+    // MARK: - Row model
+
+    private struct Row: Identifiable {
+        let id: String
+        /// Section header drawn above this row (the first row of each group carries it).
+        var header: String?
+        let icon: String
+        let label: String
+        let value: String
+        /// One-line explanation shown near the hint bar while this row is focused.
+        let detail: String
+        /// Left/right step; returns whether the value actually changed (false ⇒ boundary thud).
+        let adjust: (Int) -> Bool
+        /// A — cycle forward (wrapping) / flip.
+        let activate: () -> Void
+    }
+
+    /// Dispatch by id so the focus list's stored input callbacks always act on freshly built rows
+    /// (never on state captured at wire time).
+    private func adjust(id: String, by delta: Int) -> Bool {
+        rows.first { $0.id == id }?.adjust(delta) ?? false
+    }
+
+    private func activate(id: String) {
+        rows.first { $0.id == id }?.activate()
+    }
+
+    private var rows: [Row] {
+        let resolution = resolutionOptions
+        let refresh = SettingsOptions.refreshRates(including: hz)
+            .map { (label: "\($0) Hz", tag: $0) }
+        let bitrate = SettingsOptions.bitrateOptions(current: bitrateKbps)
+        let controllers = SettingsOptions.controllerOptions(gamepads)
+        return [
+            choiceRow(
+                id: "resolution", header: "Stream", icon: "aspectratio",
+                label: "Resolution",
+                detail: "The host creates a virtual display at exactly this size — no scaling.",
+                options: resolution, current: "\(width)x\(height)"
+            ) { tag in
+                let parts = tag.split(separator: "x").compactMap { Int($0) }
+                guard parts.count == 2 else { return }
+                width = parts[0]
+                height = parts[1]
+            },
+            choiceRow(
+                id: "refresh", icon: "gauge.with.needle", label: "Refresh rate",
+                detail: "Rates this display can actually show.",
+                options: refresh, current: hz
+            ) { hz = $0 },
+            choiceRow(
+                id: "bitrate", icon: "speedometer", label: "Bitrate",
+                detail: "Automatic uses the host's default (20 Mbps). "
+                    + "Run a speed test from the touch UI for an informed value.",
+                options: bitrate, current: bitrateKbps
+            ) { bitrateKbps = $0 },
+            choiceRow(
+                id: "compositor", icon: "macwindow", label: "Compositor",
+                detail: "Which compositor drives the virtual output — honored only if "
+                    + "available on the host.",
+                options: SettingsOptions.compositors, current: compositor
+            ) { compositor = $0 },
+
+            choiceRow(
+                id: "codec", header: "Video", icon: "film", label: "Video codec",
+                detail: "A preference — the host falls back if it can't encode this one "
+                    + "(10-bit and 4:4:4 are HEVC-only).",
+                options: SettingsOptions.codecs, current: codec
+            ) { codec = $0 },
+            toggleRow(
+                id: "hdr", icon: "sun.max", label: "10-bit HDR",
+                detail: "HDR10 — engages when the host sends HDR content and this display "
+                    + "supports it.",
+                value: $hdrEnabled),
+            toggleRow(
+                id: "chroma", icon: "textformat", label: "Full chroma (4:4:4)",
+                detail: "Sharper text and UI at more bandwidth — needs host opt-in and "
+                    + "hardware decode.",
+                value: $enable444),
+
+            choiceRow(
+                id: "audio", header: "Audio", icon: "speaker.wave.2", label: "Audio channels",
+                detail: "The speaker layout requested from the host.",
+                options: SettingsOptions.audioChannels, current: audioChannels
+            ) { audioChannels = $0 },
+            toggleRow(
+                id: "mic", icon: "mic", label: "Microphone",
+                detail: "Send this device's microphone to the host's virtual mic.",
+                value: $micEnabled),
+
+            choiceRow(
+                id: "pad", header: "Controller", icon: "gamecontroller", label: "Use controller",
+                detail: "Which pad is forwarded to the host, as player 1.",
+                options: controllers, current: gamepads.preferredID
+            ) { gamepads.preferredID = $0 },
+            choiceRow(
+                id: "padType", icon: "dpad", label: "Controller type",
+                detail: "The virtual pad the host creates — Automatic matches this controller.",
+                options: SettingsOptions.padTypes, current: gamepadType
+            ) { gamepadType = $0 },
+
+            toggleRow(
+                id: "hud", header: "Interface", icon: "chart.bar", label: "Statistics overlay",
+                detail: "Resolution, frame rate, throughput and latency while streaming.",
+                value: $hudEnabled),
+            choiceRow(
+                id: "hudPlacement", icon: "rectangle.inset.topright.filled", label: "Overlay position",
+                detail: "Which corner the statistics overlay sits in.",
+                options: SettingsOptions.hudPlacements, current: hudPlacement
+            ) { hudPlacement = $0 },
+            toggleRow(
+                id: "library", icon: "square.grid.2x2", label: "Game library",
+                detail: "Browse and launch the host's games with \(buttonName(\.buttonY, "Y")) "
+                    + "(experimental).",
+                value: $libraryEnabled),
+            toggleRow(
+                id: "gamepadUI", icon: "hand.tap", label: "Controller-optimized UI",
+                detail: "Turn off to use the touch interface even with a controller connected.",
+                value: $gamepadUIEnabled),
+        ]
+    }
+
+    /// Resolution choices as "WxH" tags — the current size is inserted when it's a custom mode
+    /// (set via the touch settings), so cycling starts from it instead of jumping.
+    private var resolutionOptions: [(label: String, tag: String)] {
+        var options = SettingsOptions.resolutionModes()
+            .map { (label: "\($0.name) · \($0.w) × \($0.h)", tag: "\($0.w)x\($0.h)") }
+        let current = "\(width)x\(height)"
+        if !options.contains(where: { $0.tag == current }) {
+            options.insert((label: "Custom · \(width) × \(height)", tag: current), at: 0)
+        }
+        return options
+    }
+
+    /// The active controller's user-facing name for a button (for detail strings).
+    private func buttonName(
+        _ button: KeyPath<GCExtendedGamepad, GCControllerButtonInput>, _ fallback: String
+    ) -> String {
+        gamepads.active?.controller.extendedGamepad?[keyPath: button].localizedName ?? fallback
+    }
+
+    // MARK: - Row builders
+
+    private func choiceRow<T: Equatable>(
+        id: String, header: String? = nil, icon: String, label: String, detail: String,
+        options: [(label: String, tag: T)], current: T, write: @escaping (T) -> Void
+    ) -> Row {
+        let index = options.firstIndex { $0.tag == current }
+        return Row(
+            id: id, header: header, icon: icon, label: label,
+            value: index.map { options[$0].label } ?? "—",
+            detail: detail,
+            adjust: { delta in
+                // Unknown current value: snap to the first option on any step.
+                guard let index else {
+                    guard let first = options.first else { return false }
+                    write(first.tag)
+                    return true
+                }
+                let target = index + delta
+                guard target >= 0, target < options.count else { return false }
+                write(options[target].tag)
+                return true
+            },
+            activate: {
+                guard let index else { return write(options.first?.tag ?? current) }
+                write(options[(index + 1) % options.count].tag)
+            })
+    }
+
+    private func toggleRow(
+        id: String, header: String? = nil, icon: String, label: String, detail: String,
+        value: Binding<Bool>
+    ) -> Row {
+        Row(
+            id: id, header: header, icon: icon, label: label,
+            value: value.wrappedValue ? "On" : "Off",
+            detail: detail,
+            adjust: { delta in
+                // Directional semantics: left = off, right = on; a no-op reads as a boundary.
+                let target = delta > 0
+                guard value.wrappedValue != target else { return false }
+                value.wrappedValue = target
+                return true
+            },
+            activate: { value.wrappedValue.toggle() })
+    }
+}
+
+#endif

clients/apple/Sources/PunktfunkClient/Settings/SettingsCategory.swift

@@ -0,0 +1,60 @@
+// SettingsView's navigation and presentation helpers: the iOS settings categories, the iPad
+// sheet sizing, and the bounded-slider clamp.
+
+import SwiftUI
+
+#if os(iOS)
+/// The settings groups, mirroring the macOS preference tabs. On iPad each is a sidebar row that
+/// drives the detail pane; on iPhone the same list collapses to pushed sub-pages. Internal (not
+/// private) so the screenshot harness can open SettingsView on a specific category.
+enum SettingsCategory: String, CaseIterable, Identifiable {
+    case general, display, audio, controllers, advanced, about
+
+    var id: Self { self }
+
+    var title: String {
+        switch self {
+        case .general: return "General"
+        case .display: return "Display"
+        case .audio: return "Audio"
+        case .controllers: return "Controllers"
+        case .advanced: return "Advanced"
+        case .about: return "About"
+        }
+    }
+
+    var symbol: String {
+        switch self {
+        case .general: return "gearshape"
+        case .display: return "display"
+        case .audio: return "speaker.wave.2"
+        case .controllers: return "gamecontroller"
+        case .advanced: return "slider.horizontal.3"
+        case .about: return "info.circle"
+        }
+    }
+}
+
+extension View {
+    /// Present the settings sheet large on iPad so the NavigationSplitView has room for its
+    /// sidebar + detail — a default form sheet is too narrow and the split view would collapse to
+    /// the iPhone push list. No-op on iPhone (the standard sheet is already right) and on iOS 17
+    /// (no `presentationSizing` — it falls back to the default sheet, which still degrades cleanly
+    /// to the push list).
+    @ViewBuilder
+    func settingsSheetSizing() -> some View {
+        if UIDevice.current.userInterfaceIdiom == .pad, #available(iOS 18, *) {
+            presentationSizing(.page)
+        } else {
+            self
+        }
+    }
+}
+#endif
+
+extension Double {
+    /// The log-scale slider mapping needs a bounded input (Automatic stores 0).
+    func clamped(_ lo: Double, _ hi: Double) -> Double {
+        Swift.min(Swift.max(self, lo), hi)
+    }
+}

clients/apple/Sources/PunktfunkClient/Settings/SettingsOptions.swift

@@ -0,0 +1,147 @@
+// The option lists every settings surface renders from — one source of truth shared by the
+// touch/desktop SettingsView (Pickers), the tvOS pushed selection rows, and the gamepad settings
+// screen (GamepadSettingsView's left/right cycling). Pure data + small pure helpers; anything that
+// reads live view state (e.g. the bitrate slider mapping) stays on SettingsView.
+
+#if os(macOS)
+import AppKit
+#endif
+import PunktfunkKit
+import SwiftUI
+
+enum SettingsOptions {
+    /// Compositor choices — the `tag` is the wire value (`PunktfunkConnection.Compositor` raw).
+    static let compositors: [(label: String, tag: Int)] = [
+        ("Automatic", 0),
+        ("KWin (KDE Plasma)", 1),
+        ("wlroots (Sway / Hyprland)", 2),
+        ("Mutter (GNOME)", 3),
+        ("gamescope", 4),
+    ]
+
+    static let audioChannels: [(label: String, tag: Int)] = [
+        ("Stereo", 2),
+        ("5.1 Surround", 6),
+        ("7.1 Surround", 8),
+    ]
+
+    /// Virtual-pad types — the `tag` is the wire value (`PunktfunkConnection.GamepadType` raw).
+    static let padTypes: [(label: String, tag: Int)] = [
+        ("Automatic", 0),
+        ("Xbox 360", 1),
+        ("Xbox One", 3),
+        ("DualSense", 2),
+        ("DualShock 4", 4),
+    ]
+
+    static let hudPlacements: [(label: String, tag: String)] =
+        HUDPlacement.allCases.map { ($0.label, $0.rawValue) }
+
+    /// Video-codec preference (`DefaultsKey.codec`) — a soft preference the host falls back from.
+    /// No AV1: this client's VideoToolbox path decodes H.264/HEVC only (hosts don't emit AV1 on
+    /// the native path yet).
+    static let codecs: [(label: String, tag: String)] = [
+        ("Automatic", "auto"),
+        ("HEVC (H.265)", "hevc"),
+        ("H.264 (AVC)", "h264"),
+    ]
+
+    // MARK: - Bitrate
+
+    /// Discrete bitrate steps for the surfaces with no Slider (tvOS pushed pickers, the gamepad
+    /// settings' left/right cycling), up to the same 3 Gbps ceiling the slider has.
+    static let bitratePresets: [(label: String, tag: Int)] = [
+        ("Automatic", 0),
+        ("10 Mbps", 10_000),
+        ("20 Mbps", 20_000),
+        ("40 Mbps", 40_000),
+        ("80 Mbps", 80_000),
+        ("150 Mbps", 150_000),
+        ("300 Mbps", 300_000),
+        ("500 Mbps", 500_000),
+        ("1 Gbps", 1_000_000),
+        ("1.5 Gbps", 1_500_000),
+        ("2 Gbps", 2_000_000),
+        ("3 Gbps", 3_000_000),
+    ]
+
+    /// The presets plus the currently stored value when it isn't one of them (set via the touch
+    /// slider or a synced device) — so the current choice stays visible/selectable.
+    static func bitrateOptions(current: Int) -> [(label: String, tag: Int)] {
+        var options = bitratePresets
+        if !options.contains(where: { $0.tag == current }) {
+            options.insert(
+                (SpeedTestSheet.mbpsLabel(kbps: current) + " (custom)", current), at: 1)
+        }
+        return options
+    }
+
+    // MARK: - Controllers
+
+    /// "Use controller" choices: Automatic, every forwardable controller, and — so a stale pin
+    /// stays visible instead of leaving the selection tag-less — any pinned id that is NOT among
+    /// the selectable (extended) entries, present-but-unusable included.
+    @MainActor
+    static func controllerOptions(_ gamepads: GamepadManager) -> [(label: String, tag: String)] {
+        let selectable = gamepads.controllers.filter(\.isExtended)
+        var options: [(label: String, tag: String)] = [("Automatic", "")]
+        options += selectable.map { ($0.name, $0.id) }
+        if !gamepads.preferredID.isEmpty,
+           !selectable.contains(where: { $0.id == gamepads.preferredID }) {
+            options.append(("Unavailable controller", gamepads.preferredID))
+        }
+        return options
+    }
+
+    #if os(iOS) || os(macOS)
+    // MARK: - Stream mode (iOS + macOS pickers; tvOS builds its own preset list)
+
+    /// 16:9 then ultrawide presets; the device's native mode is prepended by `resolutionModes`.
+    static let resolutionPresets: [(name: String, w: Int, h: Int)] = [
+        ("720p", 1280, 720),
+        ("1080p", 1920, 1080),
+        ("1440p", 2560, 1440),
+        ("4K", 3840, 2160),
+        ("Ultrawide 1080p", 2560, 1080),
+        ("Ultrawide 1440p", 3440, 1440),
+        ("Super ultrawide", 5120, 1440),
+    ]
+
+    /// This device's native mode first, then the presets, deduped by dimensions (native wins a
+    /// tie).
+    @MainActor
+    static func resolutionModes() -> [(name: String, w: Int, h: Int)] {
+        var native: [(name: String, w: Int, h: Int)] = []
+        #if os(iOS)
+        let bounds = UIScreen.main.nativeBounds // portrait-oriented pixels
+        native = [("This device",
+                   Int(max(bounds.width, bounds.height)),
+                   Int(min(bounds.width, bounds.height)))]
+        #else
+        if let screen = NSScreen.main {
+            let scale = screen.backingScaleFactor
+            native = [("This display",
+                       Int(screen.frame.width * scale),
+                       Int(screen.frame.height * scale))]
+        }
+        #endif
+        var seen = Set<String>()
+        return (native + resolutionPresets).filter { seen.insert("\($0.w)x\($0.h)").inserted }
+    }
+
+    /// Refresh rates the device can actually display (no point asking the host to render frames
+    /// the screen can't show), plus any stored custom value so it stays selectable.
+    @MainActor
+    static func refreshRates(including current: Int) -> [Int] {
+        #if os(iOS)
+        let maxHz = UIScreen.main.maximumFramesPerSecond
+        #else
+        let maxHz = NSScreen.main?.maximumFramesPerSecond ?? 60
+        #endif
+        var rates = [60, 120, 240].filter { $0 <= maxHz }
+        if rates.isEmpty { rates = [maxHz] }
+        if !rates.contains(current) { rates.append(current) }
+        return rates.sorted()
+    }
+    #endif
+}

clients/apple/Sources/PunktfunkClient/Settings/SettingsView+Sections.swift

@@ -0,0 +1,435 @@
+// SettingsView's shared sections — each setting's Section is defined exactly once here and
+// composed by the per-platform bodies in SettingsView.swift.
+
+import PunktfunkKit
+import SwiftUI
+
+extension SettingsView {
+    // MARK: - Sections (shared)
+
+    // NOTE: the Section content is deliberately split into the small named builders below — as one
+    // inline expression the iOS branch (wheel + 3-way refresh + bitrate rows) blew Swift's
+    // type-checker budget ("unable to type-check this expression in reasonable time"), which
+    // failed exactly one slice: the iOS archive (macOS/tvOS never compile that branch).
+    @ViewBuilder var streamModeSection: some View {
+        Section {
+            #if os(iOS)
+            iosResolutionWheel
+            iosRefreshRows
+            Button("Use this display's mode") { fillFromMainScreen() }
+            #elseif os(macOS)
+            HStack {
+                TextField("Resolution", value: $width, format: .number.grouping(.never))
+                Text("×")
+                TextField("", value: $height, format: .number.grouping(.never))
+                    .labelsHidden()
+            }
+            TextField("Refresh rate (Hz)", value: $hz, format: .number.grouping(.never))
+            LabeledContent("") {
+                Button("Use this display's mode") { fillFromMainScreen() }
+            }
+            #endif
+            #if !os(tvOS)
+            bitrateRows
+            #endif
+        } header: {
+            Text("Stream mode")
+        } footer: {
+            Text("The host creates a virtual output at exactly this mode — "
+                + "native resolution, no scaling. \(Self.bitrateFooter)")
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+        }
+    }
+
+    #if os(iOS)
+    // MARK: - Stream mode (iOS wheel)
+
+    /// Touch-first: a rotating wheel of common resolutions (this device's own mode first) — the
+    /// same family as the Clock/Timer pickers. The host renders a virtual output at exactly the
+    /// chosen mode, so these are real pixel sizes. The last wheel row, "Custom…", reveals
+    /// width/height/refresh fields for an arbitrary mode (see `iosRefreshRows`).
+    @ViewBuilder private var iosResolutionWheel: some View {
+        VStack(alignment: .leading, spacing: 4) {
+            Text("Resolution")
+                .font(.geist(15, relativeTo: .subheadline))
+                .foregroundStyle(.secondary)
+            Picker("Resolution", selection: resolutionSelection) {
+                ForEach(resolutionChoices, id: \.tag) { choice in
+                    Text(choice.label).tag(choice.tag)
+                }
+            }
+            .labelsHidden()
+            .pickerStyle(.wheel)
+            .frame(maxHeight: 140)
+        }
+    }
+
+    /// Custom W×H(+Hz) fields, a segmented refresh picker, or a static single-rate row.
+    @ViewBuilder private var iosRefreshRows: some View {
+        if isCustomResolution {
+            // Arbitrary entry: type the exact width × height (and refresh) the host should drive.
+            HStack {
+                TextField("Width", value: $width, format: .number.grouping(.never))
+                    .keyboardType(.numberPad)
+                Text("×")
+                TextField("Height", value: $height, format: .number.grouping(.never))
+                    .labelsHidden()
+                    .keyboardType(.numberPad)
+            }
+            // A row built from an HStack of TextFields otherwise insets its bottom separator to
+            // the inner content, clipping the hairline under "Width"; pin it to the cell edge.
+            .alignmentGuide(.listRowSeparatorLeading) { _ in 0 }
+            LabeledContent("Refresh rate") {
+                TextField("Hz", value: $hz, format: .number.grouping(.never))
+                    .keyboardType(.numberPad)
+                    .multilineTextAlignment(.trailing)
+            }
+        } else if refreshChoices.count > 1 {
+            VStack(alignment: .leading, spacing: 6) {
+                Text("Refresh rate")
+                    .font(.geist(15, relativeTo: .subheadline))
+                    .foregroundStyle(.secondary)
+                Picker("Refresh rate", selection: $hz) {
+                    ForEach(refreshChoices, id: \.self) { rate in
+                        Text("\(rate) Hz").tag(rate)
+                    }
+                }
+                .labelsHidden()
+                .pickerStyle(.segmented)
+            }
+        } else {
+            // A device with a single supported rate (e.g. 60 Hz) has nothing to pick.
+            LabeledContent("Refresh rate") {
+                Text("\(hz) Hz").foregroundStyle(.secondary)
+            }
+        }
+    }
+
+    /// Sentinel wheel tag for the "Custom…" row. Real tags are "WxH" (digits + "x"), so this can't
+    /// collide with a resolution.
+    private static let customResolutionTag = "custom"
+
+    /// Wheel rows: the resolution modes (device native first — see `SettingsOptions`), then a
+    /// "Custom…" row that reveals the numeric fields.
+    private var resolutionChoices: [(label: String, tag: String)] {
+        SettingsOptions.resolutionModes()
+            .map { (label: "\($0.name)  ·  \($0.w) × \($0.h)", tag: "\($0.w)x\($0.h)") }
+            + [(label: "Custom…", tag: Self.customResolutionTag)]
+    }
+
+    private var presetResolutionTags: Set<String> {
+        Set(SettingsOptions.resolutionModes().map { "\($0.w)x\($0.h)" })
+    }
+
+    /// True when the editable custom fields should show: the wheel is parked on "Custom…" (sticky),
+    /// or the stored size simply isn't one of the presets (e.g. a value synced from a Mac) — so a
+    /// non-preset mode stays editable across relaunches without a persisted flag.
+    private var isCustomResolution: Bool {
+        customMode || !presetResolutionTags.contains("\(width)x\(height)")
+    }
+
+    /// The wheel works in "WxH" tags so one selection drives both width and height; the custom
+    /// sentinel toggles `customMode` instead of writing a size.
+    private var resolutionSelection: Binding<String> {
+        Binding(
+            get: { isCustomResolution ? Self.customResolutionTag : "\(width)x\(height)" },
+            set: { tag in
+                if tag == Self.customResolutionTag {
+                    customMode = true
+                    return
+                }
+                customMode = false
+                let parts = tag.split(separator: "x").compactMap { Int($0) }
+                guard parts.count == 2 else { return }
+                width = parts[0]
+                height = parts[1]
+            })
+    }
+
+    /// Refresh rates this device can display, plus any stored custom value (see `SettingsOptions`).
+    private var refreshChoices: [Int] {
+        SettingsOptions.refreshRates(including: hz)
+    }
+    #endif
+
+    #if !os(tvOS)
+    /// The automatic-bitrate toggle + manual slider (and the >1 Gbps warning) rows.
+    @ViewBuilder private var bitrateRows: some View {
+        Toggle("Automatic bitrate", isOn: automaticBitrate)
+        if bitrateKbps != 0 {
+            HStack(spacing: 12) {
+                Slider(value: bitrateSlider, in: 0...1) {
+                    Text("Bitrate")
+                }
+                Text(SpeedTestSheet.mbpsLabel(kbps: bitrateKbps))
+                    .monospacedDigit()
+                    .foregroundStyle(.secondary)
+                    .frame(minWidth: 76, alignment: .trailing)
+            }
+            if bitrateKbps > 1_000_000 {
+                Label(Self.gigabitWarning, systemImage: "exclamationmark.triangle.fill")
+                    .font(.geist(12, relativeTo: .caption))
+                    .foregroundStyle(.orange)
+            }
+        }
+    }
+    #endif
+
+    @ViewBuilder var audioSection: some View {
+        Section {
+            Picker("Audio channels", selection: $audioChannels) {
+                ForEach(SettingsOptions.audioChannels, id: \.tag) { option in
+                    Text(option.label).tag(option.tag)
+                }
+            }
+            #if os(macOS)
+            Picker("Speaker", selection: $speakerUID) {
+                Text("System default").tag("")
+                ForEach(outputDevices) { device in
+                    Text(device.name).tag(device.uid)
+                }
+                if !speakerUID.isEmpty,
+                   !outputDevices.contains(where: { $0.uid == speakerUID }) {
+                    Text("Unavailable device").tag(speakerUID)
+                }
+            }
+            #endif
+            Toggle("Send microphone to the host", isOn: $micEnabled)
+            #if os(macOS)
+            Picker("Microphone", selection: $micUID) {
+                Text("System default").tag("")
+                ForEach(inputDevices) { device in
+                    Text(device.name).tag(device.uid)
+                }
+                if !micUID.isEmpty,
+                   !inputDevices.contains(where: { $0.uid == micUID }) {
+                    Text("Unavailable device").tag(micUID)
+                }
+            }
+            .disabled(!micEnabled)
+            // Multi-channel interfaces only: the mic sits on ONE discrete input, so let the user
+            // pick it. Auto sums every channel (a lone hot mic still passes at full level).
+            if micChannelCount > 1 {
+                Picker("Microphone channel", selection: $micChannel) {
+                    Text("Auto (all channels)").tag(0)
+                    ForEach(1...micChannelCount, id: \.self) { ch in
+                        Text("Channel \(ch)").tag(ch)
+                    }
+                }
+                .disabled(!micEnabled)
+            }
+            #endif
+        } header: {
+            Text("Audio")
+        } footer: {
+            Text("Host audio plays through the speaker; the microphone feeds the "
+                + "host's virtual mic. System default follows macOS device changes. "
+                + "Applies from the next session.")
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+        }
+    }
+
+    #if os(iOS)
+    /// Touch-input model (iPhone + iPad) plus the iPad-only pointer-capture toggle: lock the
+    /// mouse/trackpad for relative movement (games) vs forward an absolute cursor position.
+    @ViewBuilder var pointerSection: some View {
+        Section {
+            Picker("Touch input", selection: $touchMode) {
+                Text("Trackpad").tag(TouchInputMode.trackpad.rawValue)
+                Text("Direct pointer").tag(TouchInputMode.pointer.rawValue)
+                Text("Touch passthrough").tag(TouchInputMode.touch.rawValue)
+            }
+            if UIDevice.current.userInterfaceIdiom == .pad {
+                Toggle("Capture pointer for games", isOn: $pointerCapture)
+            }
+        } header: {
+            Text("Touch & pointer")
+        } footer: {
+            Text(pointerFooterText)
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+        }
+    }
+
+    /// Footer copy for `pointerSection`, built in plain `+=` statements. Deliberately NOT one big
+    /// `+` chain (with a ternary) inside the ViewBuilder — that single expression blew Swift's
+    /// type-checker budget and was what actually broke the iOS archive.
+    private var pointerFooterText: String {
+        var text = "Trackpad: your finger nudges the host cursor like a laptop touchpad — tap to "
+        text += "click, two-finger tap for a right click, two-finger drag to scroll, "
+        text += "tap-then-drag to hold the button, three-finger tap for the stats overlay. "
+        text += "Direct pointer: the cursor jumps to your finger. Touch passthrough: real "
+        text += "multi-touch reaches the host, for apps that understand touch. Applies from "
+        text += "the next touch."
+        if UIDevice.current.userInterfaceIdiom == .pad {
+            text += " Pointer capture locks a hardware mouse/trackpad for relative movement "
+            text += "(mouse-look); off keeps the pointer free and sends absolute positions. "
+            text += "The lock needs the stream full-screen and frontmost, and falls back "
+            text += "automatically (Stage Manager, Slide Over)."
+        }
+        return text
+    }
+    #endif
+
+    @ViewBuilder var compositorSection: some View {
+        Section {
+            Picker("Compositor", selection: $compositor) {
+                ForEach(SettingsOptions.compositors, id: \.tag) { option in
+                    Text(option.label).tag(option.tag)
+                }
+            }
+        } header: {
+            Text("Host compositor")
+        } footer: {
+            Text("Which compositor drives the virtual output on the host. A specific "
+                + "choice is honored only if that backend is available there — "
+                + "otherwise the host falls back to auto-detection.")
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+        }
+    }
+
+    @ViewBuilder var windowSection: some View {
+        #if os(macOS)
+        Section {
+            Toggle("Fullscreen while streaming", isOn: $fullscreenWhileStreaming)
+        } header: {
+            Text("Window")
+        } footer: {
+            Text("Take the window fullscreen when a session starts and restore it on the host "
+                + "list, so only the stream is fullscreen — not the picker.")
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+        }
+        #endif
+    }
+
+    // Stage-2 (Metal/VTDecompressionSession) is the default and only user-visible presenter — it
+    // recovers from a wedged decoder, where stage-1's AVSampleBufferDisplayLayer freezes hard on a
+    // lost HEVC reference. Stage-1 is kept reachable as a DEBUG-only override for diagnostics, like
+    // the controller test. Empty in release builds (no presenter UI; stage-2 always).
+    @ViewBuilder var presenterSection: some View {
+        #if DEBUG
+        Section {
+            Picker("Presenter", selection: $presenter) {
+                Text("Stage 2 (default)").tag("stage2")
+                Text("Stage 1 (debug)").tag("stage1")
+            }
+        } header: {
+            Text("Video presenter · debug")
+        } footer: {
+            Text("Stage 2 (default) decodes explicitly and presents through Metal with a display "
+                + "link — it gives the HUD the end-to-end (capture→on-glass) headline with the "
+                + "host+network/decode/display stage equation and self-recovers from decode "
+                + "stalls. Stage 1 feeds compressed video straight to the system display layer; "
+                + "it freezes on a lost HEVC reference frame, so it's a debug fallback only. "
+                + "Applies from the next session.")
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+        }
+        #endif
+    }
+
+    @ViewBuilder var hdrSection: some View {
+        Section {
+            Picker("Video codec", selection: $codec) {
+                ForEach(SettingsOptions.codecs, id: \.tag) { option in
+                    Text(option.label).tag(option.tag)
+                }
+            }
+            Toggle("10-bit HDR", isOn: $hdrEnabled)
+            Toggle("Full chroma (4:4:4)", isOn: $enable444)
+        } header: {
+            Text("Video quality")
+        } footer: {
+            Text("Codec is a preference — the host falls back if it can't encode the one you pick "
+                + "(and 10-bit/4:4:4 are HEVC-only). HDR requests a 10-bit BT.2020 PQ (HDR10) stream — "
+                + "it only engages when the host is sending HDR content AND this display supports HDR. "
+                + "4:4:4 requests full chroma (sharper text/UI, more bandwidth) — it only engages when "
+                + "this device can hardware-decode it AND the host opted in. Otherwise the stream stays "
+                + "8-bit 4:2:0 SDR. Applies from the next session.")
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+        }
+    }
+
+    @ViewBuilder var statisticsSection: some View {
+        Section {
+            Toggle("Show statistics overlay", isOn: $hudEnabled)
+            Picker("Position", selection: $hudPlacement) {
+                ForEach(HUDPlacement.allCases) { placement in
+                    Text(placement.label).tag(placement.rawValue)
+                }
+            }
+            .disabled(!hudEnabled)
+        } header: {
+            Text("Statistics")
+        } footer: {
+            Text(Self.statisticsFooter)
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+        }
+    }
+
+    @ViewBuilder var experimentalSection: some View {
+        Section {
+            Toggle("Show game library", isOn: $libraryEnabled)
+        } header: {
+            Text("Experimental")
+        } footer: {
+            Text("Adds a “Browse Library…” action to each host that lists its games "
+                + "(Steam + custom) via the host's management API; tap a title to launch it. "
+                + "Works once you've paired with the host — the library is authorized by this "
+                + "device's certificate, with no extra host setup.")
+                .font(.geist(12, relativeTo: .caption))
+                .foregroundStyle(.secondary)
+        }
+    }
+
+    @ViewBuilder var controllersSection: some View {
+        Section {
+            if gamepads.controllers.isEmpty {
+                Text("No controllers detected")
+                    .foregroundStyle(.secondary)
+            } else {
+                ForEach(gamepads.controllers) { controller in
+                    controllerRow(controller)
+                }
+            }
+            Picker("Use controller", selection: $gamepads.preferredID) {
+                ForEach(controllerOptions, id: \.tag) { option in
+                    Text(option.label).tag(option.tag)
+                }
+            }
+            Picker("Controller type", selection: $gamepadType) {
+                ForEach(SettingsOptions.padTypes, id: \.tag) { option in
+                    Text(option.label).tag(option.tag)
+                }
+            }
+            #if !os(tvOS)
+            Toggle("Gamepad-optimized browsing", isOn: $gamepadUIEnabled)
+            #endif
+            #if DEBUG && !os(tvOS)
+            Button("Test Controller…") { showControllerTest = true }
+                .disabled(gamepads.active == nil)
+                .sheet(isPresented: $showControllerTest) { ControllerTestView() }
+            #endif
+        } header: {
+            Text("Controllers")
+        } footer: {
+            // The gamepad-UI blurb is appended here, not merged into the shared
+            // `controllersFooter` constant — tvOS's `tvBody` reuses that exact string (line ~348)
+            // for its own footer and has no such toggle to describe.
+            VStack(alignment: .leading, spacing: 6) {
+                Text(Self.controllersFooter)
+                #if !os(tvOS)
+                Text(Self.gamepadUIFooter)
+                #endif
+            }
+            .font(.geist(12, relativeTo: .caption))
+            .foregroundStyle(.secondary)
+        }
+    }
+}

clients/apple/Sources/PunktfunkClient/Settings/SettingsView+Support.swift

@@ -0,0 +1,153 @@
+// SettingsView's footers and stateful helpers, used by both the section builders
+// (SettingsView+Sections.swift) and the per-platform bodies (SettingsView.swift). The option
+// LISTS live in SettingsOptions — they're shared with the gamepad settings screen too.
+
+#if os(macOS)
+import AppKit
+#endif
+import PunktfunkKit
+import SwiftUI
+
+extension SettingsView {
+    // MARK: - Bitrate
+
+    /// Slider domain, log-scale: the useful range spans three orders of magnitude
+    /// (a few Mbps … 3 Gbps) — linear would cram everything below 100 Mbps into the
+    /// first pixels.
+    private static let minSliderKbps = 2_000.0
+    private static let maxSliderKbps = 3_000_000.0
+
+    static let bitrateFooter =
+        "Automatic uses the host's default bitrate (20 Mbps); the host clamps any choice "
+        + "to its supported range. Run a speed test from a host card's context menu to "
+        + "pick an informed value. Applies from the next session."
+
+    static let gigabitWarning =
+        "Above 1 Gbps — test the network speed first (a host card's context menu → "
+        + "Test Network Speed…). A bitrate beyond what the link sustains causes loss "
+        + "and stutter."
+
+    /// `bitrateKbps == 0` is Automatic; switching to manual lands on the host default.
+    var automaticBitrate: Binding<Bool> {
+        Binding(
+            get: { bitrateKbps == 0 },
+            set: { bitrateKbps = $0 ? 0 : 20_000 })
+    }
+
+    /// Slider position 0...1 ↔ kbps on the log scale, snapped to two significant figures
+    /// so the readout shows round numbers instead of 47_322.
+    var bitrateSlider: Binding<Double> {
+        Binding(
+            get: {
+                let v = Double(bitrateKbps).clamped(Self.minSliderKbps, Self.maxSliderKbps)
+                return log(v / Self.minSliderKbps)
+                    / log(Self.maxSliderKbps / Self.minSliderKbps)
+            },
+            set: { pos in
+                let raw = Self.minSliderKbps
+                    * pow(Self.maxSliderKbps / Self.minSliderKbps, pos)
+                let mag = pow(10, floor(log10(raw)) - 1)
+                bitrateKbps = Int((raw / mag).rounded() * mag)
+            })
+    }
+
+    // MARK: - Statistics
+
+    static var statisticsFooter: String {
+        let base = "The overlay shows resolution, frame rate, throughput and latency while "
+            + "streaming, in the chosen corner."
+        #if os(macOS) || os(iOS)
+        return base + " Toggle it any time with ⌘⇧S."
+        #else
+        return base
+        #endif
+    }
+
+    // MARK: - Controllers
+
+    static let controllersFooter =
+        "One controller is forwarded to the host, as player 1 — Automatic picks the most "
+        + "recently connected one. The type is the virtual pad the host creates: Automatic "
+        + "matches the controller (a DualSense gets adaptive triggers, lightbar, touchpad "
+        + "and motion; a DualShock 4 the same minus adaptive triggers), and changes apply "
+        + "from the next session. Two identical controllers may swap a manual selection "
+        + "after reconnecting."
+
+    #if !os(tvOS)
+    static let gamepadUIFooter =
+        "When a controller is connected, the host list and game library switch to a "
+        + "controller-friendly layout — larger focus targets, controller-navigable settings, "
+        + "and a swipeable cover browser for the library. Turn this off to always use the "
+        + "standard layout. (The system may still move basic focus with a controller "
+        + "connected even with this off — that's outside the app's control.)"
+    #endif
+
+    /// "Use controller" choices for this view's manager (see `SettingsOptions.controllerOptions`).
+    var controllerOptions: [(label: String, tag: String)] {
+        SettingsOptions.controllerOptions(gamepads)
+    }
+
+    func controllerRow(_ controller: GamepadManager.DiscoveredController) -> some View {
+        HStack(spacing: 10) {
+            Image(systemName: controller.hasTouchpadAndMotion ? "playstation.logo" : "gamecontroller.fill")
+                .foregroundStyle(.secondary)
+            VStack(alignment: .leading, spacing: 2) {
+                Text(controller.name)
+                HStack(spacing: 8) {
+                    if !controller.isExtended {
+                        Text(controller.productCategory)
+                    }
+                    if controller.hasAdaptiveTriggers {
+                        Image(systemName: "r2.button.roundedtop.horizontal")
+                    }
+                    if controller.hasLight {
+                        Image(systemName: "lightbulb.fill")
+                    }
+                    if controller.hasMotion {
+                        Image(systemName: "gyroscope")
+                    }
+                    if controller.hasHaptics {
+                        Image(systemName: "waveform")
+                    }
+                    if let level = controller.batteryLevel {
+                        Text("\(Int(level * 100))%")
+                        if controller.isCharging {
+                            Image(systemName: "bolt.fill")
+                        }
+                    }
+                }
+                .font(.geist(11, relativeTo: .caption2))
+                .foregroundStyle(.secondary)
+            }
+            Spacer()
+            if gamepads.active?.id == controller.id {
+                Text("In use")
+                    .font(.geist(11, .semibold, relativeTo: .caption2))
+                    .padding(.horizontal, 8)
+                    .padding(.vertical, 3)
+                    .background(Capsule().fill(.green.opacity(0.2)))
+                    .foregroundStyle(.green)
+            }
+        }
+    }
+
+    func fillFromMainScreen() {
+        #if os(macOS)
+        guard let screen = NSScreen.main else { return }
+        let scale = screen.backingScaleFactor
+        width = Int(screen.frame.width * scale)
+        height = Int(screen.frame.height * scale)
+        hz = screen.maximumFramesPerSecond
+        #else
+        // nativeBounds is portrait-oriented pixels — streams are landscape.
+        let bounds = UIScreen.main.nativeBounds
+        width = Int(max(bounds.width, bounds.height))
+        height = Int(min(bounds.width, bounds.height))
+        hz = UIScreen.main.maximumFramesPerSecond
+        #if os(iOS)
+        // The native mode is the "This device" wheel row, so leave Custom mode if it was on.
+        customMode = false
+        #endif
+        #endif
+    }
+}

clients/apple/Sources/PunktfunkClient/Settings/SettingsView.swift

@@ -0,0 +1,380 @@
+// App settings. The host creates a native virtual output at exactly the chosen size/refresh —
+// there is no scaling anywhere in the pipeline.
+//
+// Navigation differs per platform, but all three group the same categories (General, Display,
+// Audio, Controllers, Advanced, About): macOS uses a tabbed preferences window; iOS/iPadOS uses
+// an adaptive NavigationSplitView — a category sidebar + detail pane on iPad, auto-collapsing to
+// a hierarchical push list on iPhone (the system Settings idiom on each); tvOS uses a
+// focus-native pushed-picker layout. The individual sections (`streamModeSection`,
+// `audioSection`, …) are shared across all three so a setting is defined exactly once — they
+// live in SettingsView+Sections.swift, with their helpers in SettingsView+Support.swift.
+
+#if os(macOS)
+import AppKit
+#endif
+import PunktfunkKit
+import SwiftUI
+
+@MainActor
+struct SettingsView: View {
+    @Environment(\.dismiss) private var dismiss
+    @AppStorage(DefaultsKey.streamWidth) var width = 1920
+    @AppStorage(DefaultsKey.streamHeight) var height = 1080
+    @AppStorage(DefaultsKey.streamHz) var hz = 60
+    @AppStorage(DefaultsKey.compositor) var compositor = 0
+    @AppStorage(DefaultsKey.gamepadType) var gamepadType = 0
+    @AppStorage(DefaultsKey.bitrateKbps) var bitrateKbps = 0
+    @AppStorage(DefaultsKey.presenter) var presenter = "stage2"
+    @AppStorage(DefaultsKey.hdrEnabled) var hdrEnabled = true
+    @AppStorage(DefaultsKey.enable444) var enable444 = true
+    @AppStorage(DefaultsKey.libraryEnabled) var libraryEnabled = false
+    @AppStorage(DefaultsKey.fullscreenWhileStreaming) var fullscreenWhileStreaming = true
+    @AppStorage(DefaultsKey.micEnabled) var micEnabled = true
+    @AppStorage(DefaultsKey.audioChannels) var audioChannels = 2
+    @AppStorage(DefaultsKey.codec) var codec = "auto"
+    @AppStorage(DefaultsKey.hudEnabled) var hudEnabled = true
+    @AppStorage(DefaultsKey.hudPlacement) var hudPlacement = HUDPlacement.topTrailing.rawValue
+    @ObservedObject var gamepads = GamepadManager.shared
+    #if !os(tvOS)
+    @AppStorage(DefaultsKey.gamepadUIEnabled) var gamepadUIEnabled = true
+    #endif
+    #if DEBUG && !os(tvOS)
+    @State var showControllerTest = false
+    #endif
+    #if os(iOS)
+    @AppStorage(DefaultsKey.pointerCapture) var pointerCapture = true
+    @AppStorage(DefaultsKey.touchMode) var touchMode = TouchInputMode.trackpad.rawValue
+    // The sidebar selection drives the detail pane on iPad and the pushed sub-page on iPhone.
+    // Width class decides the initial value: nil on iPhone (show the category list first),
+    // General on iPad (a two-column layout should never open with an empty detail).
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
+    @State private var settingsSelection: SettingsCategory?
+    // Tracked so the detail can show its own Done whenever the sidebar (and its Done) is off screen
+    // — not just on iPhone, but on any iPad layout that collapses the sidebar to an overlay. Starts
+    // .doubleColumn so iPad reliably opens with the sidebar (and its Done) visible.
+    @State private var columnVisibility: NavigationSplitViewVisibility = .doubleColumn
+    // Sticky once the wheel lands on "Custom…", so editing a width/height that briefly equals a
+    // preset doesn't snap the wheel back off Custom. A stored non-preset value reads as custom even
+    // when this is false (see `isCustomResolution`), so it survives relaunches without persisting.
+    @State var customMode = false
+    #endif
+    #if os(macOS)
+    @AppStorage(DefaultsKey.speakerUID) var speakerUID = ""
+    @AppStorage(DefaultsKey.micUID) var micUID = ""
+    @AppStorage(DefaultsKey.micChannel) var micChannel = 0
+    @State var outputDevices: [AudioDevice] = []
+    @State var inputDevices: [AudioDevice] = []
+    // Input channels of the selected mic — drives the "Microphone channel" picker, which only
+    // appears for a multi-channel interface (>1). 0 until the Audio tab loads it.
+    @State var micChannelCount = 0
+    #endif
+
+    #if os(iOS)
+    /// `initialCategory` is nil in the app (the list opens un-selected on iPhone; iPad lands on
+    /// General via `onAppear`). The screenshot harness passes an explicit category so the captured
+    /// shot opens on a real settings page (a populated detail) rather than the bare category list.
+    init(initialCategory: SettingsCategory? = nil) {
+        _settingsSelection = State(initialValue: initialCategory)
+    }
+    #endif
+
+    var body: some View {
+        #if os(tvOS)
+        // Native tv pattern: no inline text entry (typing numbers with a remote is
+        // miserable and the inline field chrome fights the focus system). Modes are
+        // preset pickers that push selection lists like the system Settings app.
+        tvBody
+        #elseif os(macOS)
+        macBody
+        #else
+        iosBody
+        #endif
+    }
+
+    // MARK: - macOS: tabbed preferences
+
+    #if os(macOS)
+    private var macBody: some View {
+        TabView {
+            Form {
+                streamModeSection
+                compositorSection
+            }
+            .formStyle(.grouped)
+            .tabItem { Label("General", systemImage: "gearshape") }
+
+            Form {
+                presenterSection
+                hdrSection
+                windowSection
+                statisticsSection
+            }
+            .formStyle(.grouped)
+            .tabItem { Label("Display", systemImage: "display") }
+
+            Form {
+                audioSection
+            }
+            .formStyle(.grouped)
+            .onAppear {
+                outputDevices = AudioDevices.outputs()
+                inputDevices = AudioDevices.inputs()
+                micChannelCount = AudioDevices.inputChannelCount(forUID: micUID)
+            }
+            .onChange(of: micUID) { _, newUID in
+                // A different mic → different channel count; drop a now-out-of-range pin to Auto.
+                micChannelCount = AudioDevices.inputChannelCount(forUID: newUID)
+                if micChannel > micChannelCount { micChannel = 0 }
+            }
+            .tabItem { Label("Audio", systemImage: "speaker.wave.2") }
+
+            Form {
+                controllersSection
+            }
+            .formStyle(.grouped)
+            .onAppear {
+                gamepads.refresh()
+                gamepads.startDiscovery()
+            }
+            .onDisappear { gamepads.stopDiscovery() }
+            .tabItem { Label("Controllers", systemImage: "gamecontroller") }
+
+            Form {
+                experimentalSection
+            }
+            .formStyle(.grouped)
+            .tabItem { Label("Advanced", systemImage: "slider.horizontal.3") }
+
+            AcknowledgementsView()
+                .tabItem { Label("About", systemImage: "info.circle") }
+        }
+        .frame(width: 480, height: 460)
+    }
+    #endif
+
+    // MARK: - iOS / iPadOS: adaptive split view
+
+    #if os(iOS)
+    private var iosBody: some View {
+        NavigationSplitView(columnVisibility: $columnVisibility) {
+            List(selection: $settingsSelection) {
+                ForEach(SettingsCategory.allCases) { category in
+                    // On iPhone the split view collapses to a push list, but a selection List
+                    // draws no disclosure indicator of its own — add one in compact width for the
+                    // expected drill-in affordance. On iPad the selected row highlights instead, so
+                    // the chevron is omitted there.
+                    HStack {
+                        Label(category.title, systemImage: category.symbol)
+                        if horizontalSizeClass == .compact {
+                            Spacer()
+                            Image(systemName: "chevron.forward")
+                                .font(.footnote.weight(.semibold))
+                                .foregroundStyle(.tertiary)
+                                // Purely a drill-in affordance — the row's button trait already
+                                // conveys "opens"; keep it out of the VoiceOver announcement.
+                                .accessibilityHidden(true)
+                        }
+                    }
+                    .tag(category)
+                }
+            }
+            .navigationTitle("Settings")
+            .toolbar {
+                ToolbarItem(placement: .confirmationAction) {
+                    Button("Done") { dismiss() }
+                }
+            }
+        } detail: {
+            // NavigationSplitView hosts the detail in its own navigation context (its title bar),
+            // so no inner NavigationStack — that would double the bar on iPad. On iPhone the split
+            // view collapses to one stack and pushes this when a row is tapped. `?? .general` only
+            // backs the brief pre-selection window; the list never auto-pushes on a nil selection.
+            settingsDetail(settingsSelection ?? .general)
+                // Keep a Done on the detail whenever the sidebar (and its Done) isn't on screen: the
+                // iPhone push, or any iPad layout that collapsed the sidebar to an overlay. When the
+                // sidebar is showing, its Done is the only one — so this stays hidden to avoid two.
+                .toolbar {
+                    if horizontalSizeClass == .compact || columnVisibility == .detailOnly {
+                        ToolbarItem(placement: .confirmationAction) {
+                            Button("Done") { dismiss() }
+                        }
+                    }
+                }
+        }
+        .onAppear {
+            if horizontalSizeClass == .regular, settingsSelection == nil {
+                settingsSelection = .general
+            }
+            gamepads.refresh()
+            gamepads.startDiscovery()
+        }
+        // A regular→regular launch sets the default above; this catches a compact→regular change
+        // (e.g. an iPad leaving narrow split-screen multitasking) so the detail pane fills in.
+        .onChange(of: horizontalSizeClass) { _, newValue in
+            if newValue == .regular, settingsSelection == nil {
+                settingsSelection = .general
+            }
+        }
+        .onDisappear { gamepads.stopDiscovery() }
+    }
+
+    @ViewBuilder
+    private func settingsDetail(_ category: SettingsCategory) -> some View {
+        switch category {
+        case .general:
+            Form {
+                streamModeSection
+                pointerSection
+                compositorSection
+            }
+            .formStyle(.grouped)
+            .navigationTitle("General")
+            .navigationBarTitleDisplayMode(.inline)
+        case .display:
+            Form {
+                presenterSection
+                hdrSection
+                statisticsSection
+            }
+            .formStyle(.grouped)
+            .navigationTitle("Display")
+            .navigationBarTitleDisplayMode(.inline)
+        case .audio:
+            Form { audioSection }
+                .formStyle(.grouped)
+                .navigationTitle("Audio")
+                .navigationBarTitleDisplayMode(.inline)
+        case .controllers:
+            Form { controllersSection }
+                .formStyle(.grouped)
+                .navigationTitle("Controllers")
+                .navigationBarTitleDisplayMode(.inline)
+        case .advanced:
+            Form { experimentalSection }
+                .formStyle(.grouped)
+                .navigationTitle("Advanced")
+                .navigationBarTitleDisplayMode(.inline)
+        case .about:
+            // Already a full scrollable view that sets its own "Acknowledgements" title; pin the
+            // display mode inline to match the five sibling detail pages (it would otherwise inherit
+            // the large title from the "Settings" sidebar root).
+            AcknowledgementsView()
+                .navigationBarTitleDisplayMode(.inline)
+        }
+    }
+    #endif
+
+    // MARK: - tvOS
+
+    #if os(tvOS)
+    private static let presets: [(label: String, tag: String)] = [
+        ("720p @ 60", "1280x720x60"),
+        ("1080p @ 60", "1920x1080x60"),
+        ("4K @ 60", "3840x2160x60"),
+    ]
+
+    private var modeTag: Binding<String> {
+        Binding(
+            get: { "\(width)x\(height)x\(hz)" },
+            set: { tag in
+                let parts = tag.split(separator: "x").compactMap { Int($0) }
+                guard parts.count == 3 else { return }
+                width = parts[0]
+                height = parts[1]
+                hz = parts[2]
+            })
+    }
+
+    private var hudEnabledTag: Binding<String> {
+        Binding(get: { hudEnabled ? "on" : "off" }, set: { hudEnabled = $0 == "on" })
+    }
+
+    private var hdrEnabledTag: Binding<String> {
+        Binding(get: { hdrEnabled ? "on" : "off" }, set: { hdrEnabled = $0 == "on" })
+    }
+
+    private var tvBody: some View {
+        let currentTag = "\(width)x\(height)x\(hz)"
+        let bounds = UIScreen.main.nativeBounds
+        let nativeTag = "\(Int(max(bounds.width, bounds.height)))x"
+            + "\(Int(min(bounds.width, bounds.height)))x\(UIScreen.main.maximumFramesPerSecond)"
+        var options = Self.presets
+        if !options.contains(where: { $0.tag == nativeTag }) {
+            options.insert(("This TV (native)", nativeTag), at: 0)
+        }
+        if !options.contains(where: { $0.tag == currentTag }) {
+            options.insert(("Custom (\(width)×\(height) @ \(hz))", currentTag), at: 0)
+        }
+        return ScrollView {
+            VStack(spacing: 16) {
+                TVSelectionRow(title: "Stream mode", options: options, selection: modeTag)
+                TVSelectionRow(
+                    title: "Bitrate",
+                    options: SettingsOptions.bitrateOptions(current: bitrateKbps),
+                    selection: $bitrateKbps)
+                TVSelectionRow(
+                    title: "Audio channels",
+                    options: SettingsOptions.audioChannels,
+                    selection: $audioChannels)
+                if bitrateKbps > 1_000_000 {
+                    Label(Self.gigabitWarning, systemImage: "exclamationmark.triangle.fill")
+                        .font(.geist(12, relativeTo: .caption))
+                        .foregroundStyle(.orange)
+                        .multilineTextAlignment(.center)
+                }
+                TVSelectionRow(
+                    title: "Compositor", options: SettingsOptions.compositors,
+                    selection: $compositor)
+                #if DEBUG
+                TVSelectionRow(
+                    title: "Presenter (debug)",
+                    options: [("Stage 2 (default)", "stage2"), ("Stage 1 (debug)", "stage1")],
+                    selection: $presenter)
+                #endif
+                TVSelectionRow(
+                    title: "10-bit HDR",
+                    options: [("On", "on"), ("Off", "off")], selection: hdrEnabledTag)
+                Text("The host creates a virtual output at exactly this mode — native "
+                    + "resolution, no scaling. \(Self.bitrateFooter) A specific compositor "
+                    + "is honored only if available on the host.")
+                    .font(.geist(12, relativeTo: .caption))
+                    .foregroundStyle(.secondary)
+                    .multilineTextAlignment(.center)
+                    .padding(.top, 8)
+                TVSelectionRow(
+                    title: "Statistics overlay",
+                    options: [("On", "on"), ("Off", "off")], selection: hudEnabledTag)
+                TVSelectionRow(
+                    title: "Statistics position", options: SettingsOptions.hudPlacements,
+                    selection: $hudPlacement)
+                ForEach(gamepads.controllers) { controller in
+                    controllerRow(controller)
+                        .padding(.horizontal, 24)
+                }
+                TVSelectionRow(
+                    title: "Use controller", options: controllerOptions,
+                    selection: $gamepads.preferredID)
+                TVSelectionRow(
+                    title: "Controller type", options: SettingsOptions.padTypes,
+                    selection: $gamepadType)
+                Text(Self.controllersFooter)
+                    .font(.geist(12, relativeTo: .caption))
+                    .foregroundStyle(.secondary)
+                    .multilineTextAlignment(.center)
+                    .padding(.top, 8)
+                NavigationLink("Acknowledgements") { AcknowledgementsView() }
+                    .padding(.top, 8)
+            }
+            .frame(maxWidth: 1000)
+            .frame(maxWidth: .infinity)
+            .padding(60)
+        }
+        .navigationTitle("Settings")
+        .onAppear {
+            gamepads.refresh()
+            gamepads.startDiscovery()
+        }
+        .onDisappear { gamepads.stopDiscovery() }
+    }
+    #endif
+}

clients/apple/Sources/PunktfunkClient/SettingsView.swift

@@ -1,992 +0,0 @@
-// App settings. The host creates a native virtual output at exactly the chosen size/refresh —
-// there is no scaling anywhere in the pipeline.
-//
-// Navigation differs per platform, but all three group the same categories (General, Display,
-// Audio, Controllers, Advanced, About): macOS uses a tabbed preferences window; iOS/iPadOS uses
-// an adaptive NavigationSplitView — a category sidebar + detail pane on iPad, auto-collapsing to
-// a hierarchical push list on iPhone (the system Settings idiom on each); tvOS uses a
-// focus-native pushed-picker layout. The individual sections (`streamModeSection`,
-// `audioSection`, …) are shared across all three so a setting is defined exactly once.
-
-#if os(macOS)
-import AppKit
-#endif
-import PunktfunkKit
-import SwiftUI
-
-@MainActor
-struct SettingsView: View {
-    @Environment(\.dismiss) private var dismiss
-    @AppStorage(DefaultsKey.streamWidth) private var width = 1920
-    @AppStorage(DefaultsKey.streamHeight) private var height = 1080
-    @AppStorage(DefaultsKey.streamHz) private var hz = 60
-    @AppStorage(DefaultsKey.compositor) private var compositor = 0
-    @AppStorage(DefaultsKey.gamepadType) private var gamepadType = 0
-    @AppStorage(DefaultsKey.bitrateKbps) private var bitrateKbps = 0
-    @AppStorage(DefaultsKey.presenter) private var presenter = "stage2"
-    @AppStorage(DefaultsKey.hdrEnabled) private var hdrEnabled = true
-    @AppStorage(DefaultsKey.enable444) private var enable444 = true
-    @AppStorage(DefaultsKey.libraryEnabled) private var libraryEnabled = false
-    @AppStorage(DefaultsKey.fullscreenWhileStreaming) private var fullscreenWhileStreaming = true
-    @AppStorage(DefaultsKey.micEnabled) private var micEnabled = true
-    @AppStorage(DefaultsKey.audioChannels) private var audioChannels = 2
-    @AppStorage(DefaultsKey.hudEnabled) private var hudEnabled = true
-    @AppStorage(DefaultsKey.hudPlacement) private var hudPlacement = HUDPlacement.topTrailing.rawValue
-    @ObservedObject private var gamepads = GamepadManager.shared
-    #if DEBUG && !os(tvOS)
-    @State private var showControllerTest = false
-    #endif
-    #if os(iOS)
-    @AppStorage(DefaultsKey.pointerCapture) private var pointerCapture = true
-    // The sidebar selection drives the detail pane on iPad and the pushed sub-page on iPhone.
-    // Width class decides the initial value: nil on iPhone (show the category list first),
-    // General on iPad (a two-column layout should never open with an empty detail).
-    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
-    @State private var settingsSelection: SettingsCategory?
-    // Tracked so the detail can show its own Done whenever the sidebar (and its Done) is off screen
-    // — not just on iPhone, but on any iPad layout that collapses the sidebar to an overlay. Starts
-    // .doubleColumn so iPad reliably opens with the sidebar (and its Done) visible.
-    @State private var columnVisibility: NavigationSplitViewVisibility = .doubleColumn
-    // Sticky once the wheel lands on "Custom…", so editing a width/height that briefly equals a
-    // preset doesn't snap the wheel back off Custom. A stored non-preset value reads as custom even
-    // when this is false (see `isCustomResolution`), so it survives relaunches without persisting.
-    @State private var customMode = false
-    #endif
-    #if os(macOS)
-    @AppStorage(DefaultsKey.speakerUID) private var speakerUID = ""
-    @AppStorage(DefaultsKey.micUID) private var micUID = ""
-    @State private var outputDevices: [AudioDevice] = []
-    @State private var inputDevices: [AudioDevice] = []
-    #endif
-
-    #if os(iOS)
-    /// `initialCategory` is nil in the app (the list opens un-selected on iPhone; iPad lands on
-    /// General via `onAppear`). The screenshot harness passes an explicit category so the captured
-    /// shot opens on a real settings page (a populated detail) rather than the bare category list.
-    init(initialCategory: SettingsCategory? = nil) {
-        _settingsSelection = State(initialValue: initialCategory)
-    }
-    #endif
-
-    var body: some View {
-        #if os(tvOS)
-        // Native tv pattern: no inline text entry (typing numbers with a remote is
-        // miserable and the inline field chrome fights the focus system). Modes are
-        // preset pickers that push selection lists like the system Settings app.
-        tvBody
-        #elseif os(macOS)
-        macBody
-        #else
-        iosBody
-        #endif
-    }
-
-    // MARK: - macOS: tabbed preferences
-
-    #if os(macOS)
-    private var macBody: some View {
-        TabView {
-            Form {
-                streamModeSection
-                compositorSection
-            }
-            .formStyle(.grouped)
-            .tabItem { Label("General", systemImage: "gearshape") }
-
-            Form {
-                presenterSection
-                hdrSection
-                windowSection
-                statisticsSection
-            }
-            .formStyle(.grouped)
-            .tabItem { Label("Display", systemImage: "display") }
-
-            Form {
-                audioSection
-            }
-            .formStyle(.grouped)
-            .onAppear {
-                outputDevices = AudioDevices.outputs()
-                inputDevices = AudioDevices.inputs()
-            }
-            .tabItem { Label("Audio", systemImage: "speaker.wave.2") }
-
-            Form {
-                controllersSection
-            }
-            .formStyle(.grouped)
-            .onAppear {
-                gamepads.refresh()
-                gamepads.startDiscovery()
-            }
-            .onDisappear { gamepads.stopDiscovery() }
-            .tabItem { Label("Controllers", systemImage: "gamecontroller") }
-
-            Form {
-                experimentalSection
-            }
-            .formStyle(.grouped)
-            .tabItem { Label("Advanced", systemImage: "slider.horizontal.3") }
-
-            AcknowledgementsView()
-                .tabItem { Label("About", systemImage: "info.circle") }
-        }
-        .frame(width: 480, height: 460)
-    }
-    #endif
-
-    // MARK: - iOS / iPadOS: adaptive split view
-
-    #if os(iOS)
-    private var iosBody: some View {
-        NavigationSplitView(columnVisibility: $columnVisibility) {
-            List(selection: $settingsSelection) {
-                ForEach(SettingsCategory.allCases) { category in
-                    // On iPhone the split view collapses to a push list, but a selection List
-                    // draws no disclosure indicator of its own — add one in compact width for the
-                    // expected drill-in affordance. On iPad the selected row highlights instead, so
-                    // the chevron is omitted there.
-                    HStack {
-                        Label(category.title, systemImage: category.symbol)
-                        if horizontalSizeClass == .compact {
-                            Spacer()
-                            Image(systemName: "chevron.forward")
-                                .font(.footnote.weight(.semibold))
-                                .foregroundStyle(.tertiary)
-                                // Purely a drill-in affordance — the row's button trait already
-                                // conveys "opens"; keep it out of the VoiceOver announcement.
-                                .accessibilityHidden(true)
-                        }
-                    }
-                    .tag(category)
-                }
-            }
-            .navigationTitle("Settings")
-            .toolbar {
-                ToolbarItem(placement: .confirmationAction) {
-                    Button("Done") { dismiss() }
-                }
-            }
-        } detail: {
-            // NavigationSplitView hosts the detail in its own navigation context (its title bar),
-            // so no inner NavigationStack — that would double the bar on iPad. On iPhone the split
-            // view collapses to one stack and pushes this when a row is tapped. `?? .general` only
-            // backs the brief pre-selection window; the list never auto-pushes on a nil selection.
-            settingsDetail(settingsSelection ?? .general)
-                // Keep a Done on the detail whenever the sidebar (and its Done) isn't on screen: the
-                // iPhone push, or any iPad layout that collapsed the sidebar to an overlay. When the
-                // sidebar is showing, its Done is the only one — so this stays hidden to avoid two.
-                .toolbar {
-                    if horizontalSizeClass == .compact || columnVisibility == .detailOnly {
-                        ToolbarItem(placement: .confirmationAction) {
-                            Button("Done") { dismiss() }
-                        }
-                    }
-                }
-        }
-        .onAppear {
-            if horizontalSizeClass == .regular, settingsSelection == nil {
-                settingsSelection = .general
-            }
-            gamepads.refresh()
-            gamepads.startDiscovery()
-        }
-        // A regular→regular launch sets the default above; this catches a compact→regular change
-        // (e.g. an iPad leaving narrow split-screen multitasking) so the detail pane fills in.
-        .onChange(of: horizontalSizeClass) { _, newValue in
-            if newValue == .regular, settingsSelection == nil {
-                settingsSelection = .general
-            }
-        }
-        .onDisappear { gamepads.stopDiscovery() }
-    }
-
-    @ViewBuilder
-    private func settingsDetail(_ category: SettingsCategory) -> some View {
-        switch category {
-        case .general:
-            Form {
-                streamModeSection
-                pointerSection
-                compositorSection
-            }
-            .formStyle(.grouped)
-            .navigationTitle("General")
-            .navigationBarTitleDisplayMode(.inline)
-        case .display:
-            Form {
-                presenterSection
-                hdrSection
-                statisticsSection
-            }
-            .formStyle(.grouped)
-            .navigationTitle("Display")
-            .navigationBarTitleDisplayMode(.inline)
-        case .audio:
-            Form { audioSection }
-                .formStyle(.grouped)
-                .navigationTitle("Audio")
-                .navigationBarTitleDisplayMode(.inline)
-        case .controllers:
-            Form { controllersSection }
-                .formStyle(.grouped)
-                .navigationTitle("Controllers")
-                .navigationBarTitleDisplayMode(.inline)
-        case .advanced:
-            Form { experimentalSection }
-                .formStyle(.grouped)
-                .navigationTitle("Advanced")
-                .navigationBarTitleDisplayMode(.inline)
-        case .about:
-            // Already a full scrollable view that sets its own "Acknowledgements" title; pin the
-            // display mode inline to match the five sibling detail pages (it would otherwise inherit
-            // the large title from the "Settings" sidebar root).
-            AcknowledgementsView()
-                .navigationBarTitleDisplayMode(.inline)
-        }
-    }
-    #endif
-
-    // MARK: - tvOS
-
-    #if os(tvOS)
-    private static let presets: [(label: String, tag: String)] = [
-        ("720p @ 60", "1280x720x60"),
-        ("1080p @ 60", "1920x1080x60"),
-        ("4K @ 60", "3840x2160x60"),
-    ]
-
-    private var modeTag: Binding<String> {
-        Binding(
-            get: { "\(width)x\(height)x\(hz)" },
-            set: { tag in
-                let parts = tag.split(separator: "x").compactMap { Int($0) }
-                guard parts.count == 3 else { return }
-                width = parts[0]
-                height = parts[1]
-                hz = parts[2]
-            })
-    }
-
-    private var hudEnabledTag: Binding<String> {
-        Binding(get: { hudEnabled ? "on" : "off" }, set: { hudEnabled = $0 == "on" })
-    }
-
-    private var hdrEnabledTag: Binding<String> {
-        Binding(get: { hdrEnabled ? "on" : "off" }, set: { hdrEnabled = $0 == "on" })
-    }
-
-    private var tvBody: some View {
-        let currentTag = "\(width)x\(height)x\(hz)"
-        let bounds = UIScreen.main.nativeBounds
-        let nativeTag = "\(Int(max(bounds.width, bounds.height)))x"
-            + "\(Int(min(bounds.width, bounds.height)))x\(UIScreen.main.maximumFramesPerSecond)"
-        var options = Self.presets
-        if !options.contains(where: { $0.tag == nativeTag }) {
-            options.insert(("This TV (native)", nativeTag), at: 0)
-        }
-        if !options.contains(where: { $0.tag == currentTag }) {
-            options.insert(("Custom (\(width)×\(height) @ \(hz))", currentTag), at: 0)
-        }
-        let compositors: [(label: String, tag: Int)] = [
-            ("Automatic", 0),
-            ("KWin (KDE Plasma)", 1),
-            ("wlroots (Sway / Hyprland)", 2),
-            ("Mutter (GNOME)", 3),
-            ("gamescope", 4),
-        ]
-        return ScrollView {
-            VStack(spacing: 16) {
-                TVSelectionRow(title: "Stream mode", options: options, selection: modeTag)
-                TVSelectionRow(
-                    title: "Bitrate", options: bitrateOptions, selection: $bitrateKbps)
-                TVSelectionRow(
-                    title: "Audio channels",
-                    options: [("Stereo", 2), ("5.1 Surround", 6), ("7.1 Surround", 8)],
-                    selection: $audioChannels)
-                if bitrateKbps > 1_000_000 {
-                    Label(Self.gigabitWarning, systemImage: "exclamationmark.triangle.fill")
-                        .font(.geist(12, relativeTo: .caption))
-                        .foregroundStyle(.orange)
-                        .multilineTextAlignment(.center)
-                }
-                TVSelectionRow(
-                    title: "Compositor", options: compositors, selection: $compositor)
-                #if DEBUG
-                TVSelectionRow(
-                    title: "Presenter (debug)",
-                    options: [("Stage 2 (default)", "stage2"), ("Stage 1 (debug)", "stage1")],
-                    selection: $presenter)
-                #endif
-                TVSelectionRow(
-                    title: "10-bit HDR",
-                    options: [("On", "on"), ("Off", "off")], selection: hdrEnabledTag)
-                Text("The host creates a virtual output at exactly this mode — native "
-                    + "resolution, no scaling. \(Self.bitrateFooter) A specific compositor "
-                    + "is honored only if available on the host.")
-                    .font(.geist(12, relativeTo: .caption))
-                    .foregroundStyle(.secondary)
-                    .multilineTextAlignment(.center)
-                    .padding(.top, 8)
-                TVSelectionRow(
-                    title: "Statistics overlay",
-                    options: [("On", "on"), ("Off", "off")], selection: hudEnabledTag)
-                TVSelectionRow(
-                    title: "Statistics position", options: Self.placementOptions,
-                    selection: $hudPlacement)
-                ForEach(gamepads.controllers) { controller in
-                    controllerRow(controller)
-                        .padding(.horizontal, 24)
-                }
-                TVSelectionRow(
-                    title: "Use controller", options: controllerOptions,
-                    selection: $gamepads.preferredID)
-                TVSelectionRow(
-                    title: "Controller type", options: Self.padTypes, selection: $gamepadType)
-                Text(Self.controllersFooter)
-                    .font(.geist(12, relativeTo: .caption))
-                    .foregroundStyle(.secondary)
-                    .multilineTextAlignment(.center)
-                    .padding(.top, 8)
-                NavigationLink("Acknowledgements") { AcknowledgementsView() }
-                    .padding(.top, 8)
-            }
-            .frame(maxWidth: 1000)
-            .frame(maxWidth: .infinity)
-            .padding(60)
-        }
-        .navigationTitle("Settings")
-        .onAppear {
-            gamepads.refresh()
-            gamepads.startDiscovery()
-        }
-        .onDisappear { gamepads.stopDiscovery() }
-    }
-    #endif
-
-    // MARK: - Sections (shared)
-
-    @ViewBuilder private var streamModeSection: some View {
-        Section {
-            #if os(iOS)
-            // Touch-first: a rotating wheel of common resolutions (this device's own mode first) and
-            // a segmented refresh-rate control — the same family as the Clock/Timer pickers. The host
-            // renders a virtual output at exactly the chosen mode, so these are real pixel sizes. The
-            // last wheel row, "Custom…", reveals width/height/refresh fields for an arbitrary mode.
-            VStack(alignment: .leading, spacing: 4) {
-                Text("Resolution")
-                    .font(.geist(15, relativeTo: .subheadline))
-                    .foregroundStyle(.secondary)
-                Picker("Resolution", selection: resolutionSelection) {
-                    ForEach(resolutionChoices, id: \.tag) { choice in
-                        Text(choice.label).tag(choice.tag)
-                    }
-                }
-                .labelsHidden()
-                .pickerStyle(.wheel)
-                .frame(maxHeight: 140)
-            }
-            if isCustomResolution {
-                // Arbitrary entry: type the exact width × height (and refresh) the host should drive.
-                HStack {
-                    TextField("Width", value: $width, format: .number.grouping(.never))
-                        .keyboardType(.numberPad)
-                    Text("×")
-                    TextField("Height", value: $height, format: .number.grouping(.never))
-                        .labelsHidden()
-                        .keyboardType(.numberPad)
-                }
-                // A row built from an HStack of TextFields otherwise insets its bottom separator to
-                // the inner content, clipping the hairline under "Width"; pin it to the cell edge.
-                .alignmentGuide(.listRowSeparatorLeading) { _ in 0 }
-                LabeledContent("Refresh rate") {
-                    TextField("Hz", value: $hz, format: .number.grouping(.never))
-                        .keyboardType(.numberPad)
-                        .multilineTextAlignment(.trailing)
-                }
-            } else if refreshChoices.count > 1 {
-                VStack(alignment: .leading, spacing: 6) {
-                    Text("Refresh rate")
-                        .font(.geist(15, relativeTo: .subheadline))
-                        .foregroundStyle(.secondary)
-                    Picker("Refresh rate", selection: $hz) {
-                        ForEach(refreshChoices, id: \.self) { rate in
-                            Text("\(rate) Hz").tag(rate)
-                        }
-                    }
-                    .labelsHidden()
-                    .pickerStyle(.segmented)
-                }
-            } else {
-                // A device with a single supported rate (e.g. 60 Hz) has nothing to pick.
-                LabeledContent("Refresh rate") {
-                    Text("\(hz) Hz").foregroundStyle(.secondary)
-                }
-            }
-            Button("Use this display's mode") { fillFromMainScreen() }
-            #elseif os(macOS)
-            HStack {
-                TextField("Resolution", value: $width, format: .number.grouping(.never))
-                Text("×")
-                TextField("", value: $height, format: .number.grouping(.never))
-                    .labelsHidden()
-            }
-            TextField("Refresh rate (Hz)", value: $hz, format: .number.grouping(.never))
-            LabeledContent("") {
-                Button("Use this display's mode") { fillFromMainScreen() }
-            }
-            #endif
-            #if !os(tvOS)
-            Toggle("Automatic bitrate", isOn: automaticBitrate)
-            if bitrateKbps != 0 {
-                HStack(spacing: 12) {
-                    Slider(value: bitrateSlider, in: 0...1) {
-                        Text("Bitrate")
-                    }
-                    Text(SpeedTestSheet.mbpsLabel(kbps: bitrateKbps))
-                        .monospacedDigit()
-                        .foregroundStyle(.secondary)
-                        .frame(minWidth: 76, alignment: .trailing)
-                }
-                if bitrateKbps > 1_000_000 {
-                    Label(Self.gigabitWarning, systemImage: "exclamationmark.triangle.fill")
-                        .font(.geist(12, relativeTo: .caption))
-                        .foregroundStyle(.orange)
-                }
-            }
-            #endif
-        } header: {
-            Text("Stream mode")
-        } footer: {
-            Text("The host creates a virtual output at exactly this mode — "
-                + "native resolution, no scaling. \(Self.bitrateFooter)")
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-        }
-    }
-
-    #if os(iOS)
-    // MARK: - Stream mode (iOS wheel)
-
-    /// Sentinel wheel tag for the "Custom…" row. Real tags are "WxH" (digits + "x"), so this can't
-    /// collide with a resolution.
-    private static let customResolutionTag = "custom"
-
-    /// 16:9 then ultrawide presets; the device's native mode is prepended at runtime.
-    private static let resolutionPresets: [(name: String, w: Int, h: Int)] = [
-        ("720p", 1280, 720),
-        ("1080p", 1920, 1080),
-        ("1440p", 2560, 1440),
-        ("4K", 3840, 2160),
-        ("Ultrawide 1080p", 2560, 1080),
-        ("Ultrawide 1440p", 3440, 1440),
-        ("Super ultrawide", 5120, 1440),
-    ]
-
-    /// The non-custom wheel rows: this device's native mode first, then the presets, deduped by
-    /// dimensions (native wins a tie).
-    private var resolutionModes: [(name: String, w: Int, h: Int)] {
-        let bounds = UIScreen.main.nativeBounds // portrait-oriented pixels
-        let native = (w: Int(max(bounds.width, bounds.height)), h: Int(min(bounds.width, bounds.height)))
-        let all = [(name: "This device", w: native.w, h: native.h)] + Self.resolutionPresets
-        var seen = Set<String>()
-        return all.filter { seen.insert("\($0.w)x\($0.h)").inserted }
-    }
-
-    /// Wheel rows: the resolution modes, then a "Custom…" row that reveals the numeric fields.
-    private var resolutionChoices: [(label: String, tag: String)] {
-        resolutionModes.map { (label: "\($0.name)  ·  \($0.w) × \($0.h)", tag: "\($0.w)x\($0.h)") }
-            + [(label: "Custom…", tag: Self.customResolutionTag)]
-    }
-
-    private var presetResolutionTags: Set<String> {
-        Set(resolutionModes.map { "\($0.w)x\($0.h)" })
-    }
-
-    /// True when the editable custom fields should show: the wheel is parked on "Custom…" (sticky),
-    /// or the stored size simply isn't one of the presets (e.g. a value synced from a Mac) — so a
-    /// non-preset mode stays editable across relaunches without a persisted flag.
-    private var isCustomResolution: Bool {
-        customMode || !presetResolutionTags.contains("\(width)x\(height)")
-    }
-
-    /// The wheel works in "WxH" tags so one selection drives both width and height; the custom
-    /// sentinel toggles `customMode` instead of writing a size.
-    private var resolutionSelection: Binding<String> {
-        Binding(
-            get: { isCustomResolution ? Self.customResolutionTag : "\(width)x\(height)" },
-            set: { tag in
-                if tag == Self.customResolutionTag {
-                    customMode = true
-                    return
-                }
-                customMode = false
-                let parts = tag.split(separator: "x").compactMap { Int($0) }
-                guard parts.count == 2 else { return }
-                width = parts[0]
-                height = parts[1]
-            })
-    }
-
-    /// Refresh rates the device can actually display (no point asking the host to render frames the
-    /// screen can't show), plus any stored custom value so it stays selectable.
-    private var refreshChoices: [Int] {
-        let maxHz = UIScreen.main.maximumFramesPerSecond
-        var rates = [60, 120, 240].filter { $0 <= maxHz }
-        if rates.isEmpty { rates = [maxHz] }
-        if !rates.contains(hz) { rates.append(hz) }
-        return rates.sorted()
-    }
-    #endif
-
-    @ViewBuilder private var audioSection: some View {
-        Section {
-            Picker("Audio channels", selection: $audioChannels) {
-                Text("Stereo").tag(2)
-                Text("5.1 Surround").tag(6)
-                Text("7.1 Surround").tag(8)
-            }
-            #if os(macOS)
-            Picker("Speaker", selection: $speakerUID) {
-                Text("System default").tag("")
-                ForEach(outputDevices) { device in
-                    Text(device.name).tag(device.uid)
-                }
-                if !speakerUID.isEmpty,
-                   !outputDevices.contains(where: { $0.uid == speakerUID }) {
-                    Text("Unavailable device").tag(speakerUID)
-                }
-            }
-            #endif
-            Toggle("Send microphone to the host", isOn: $micEnabled)
-            #if os(macOS)
-            Picker("Microphone", selection: $micUID) {
-                Text("System default").tag("")
-                ForEach(inputDevices) { device in
-                    Text(device.name).tag(device.uid)
-                }
-                if !micUID.isEmpty,
-                   !inputDevices.contains(where: { $0.uid == micUID }) {
-                    Text("Unavailable device").tag(micUID)
-                }
-            }
-            .disabled(!micEnabled)
-            #endif
-        } header: {
-            Text("Audio")
-        } footer: {
-            Text("Host audio plays through the speaker; the microphone feeds the "
-                + "host's virtual mic. System default follows macOS device changes. "
-                + "Applies from the next session.")
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-        }
-    }
-
-    #if os(iOS)
-    /// iPad-only pointer-capture toggle: lock the mouse/trackpad for relative movement (games) vs
-    /// forward an absolute cursor position (desktop). Empty on iPhone (no hardware-pointer lock —
-    /// the mouse path there is always the absolute fallback).
-    @ViewBuilder private var pointerSection: some View {
-        if UIDevice.current.userInterfaceIdiom == .pad {
-            Section {
-                Toggle("Capture pointer for games", isOn: $pointerCapture)
-            } header: {
-                Text("Pointer")
-            } footer: {
-                Text("With a mouse or trackpad connected, lock the pointer and send relative "
-                    + "movement — the expected behavior for games (mouse-look). Turn this off for "
-                    + "desktop use to keep the pointer free and send its absolute position instead. "
-                    + "The lock needs the stream full-screen and frontmost; it falls back to the "
-                    + "absolute pointer automatically (Stage Manager, Slide Over). Finger touch is "
-                    + "unaffected. Applies from the next session.")
-                    .font(.geist(12, relativeTo: .caption))
-                    .foregroundStyle(.secondary)
-            }
-        }
-    }
-    #endif
-
-    @ViewBuilder private var compositorSection: some View {
-        Section {
-            Picker("Compositor", selection: $compositor) {
-                Text("Automatic").tag(0)
-                Text("KWin (KDE Plasma)").tag(1)
-                Text("wlroots (Sway / Hyprland)").tag(2)
-                Text("Mutter (GNOME)").tag(3)
-                Text("gamescope").tag(4)
-            }
-        } header: {
-            Text("Host compositor")
-        } footer: {
-            Text("Which compositor drives the virtual output on the host. A specific "
-                + "choice is honored only if that backend is available there — "
-                + "otherwise the host falls back to auto-detection.")
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-        }
-    }
-
-    @ViewBuilder private var windowSection: some View {
-        #if os(macOS)
-        Section {
-            Toggle("Fullscreen while streaming", isOn: $fullscreenWhileStreaming)
-        } header: {
-            Text("Window")
-        } footer: {
-            Text("Take the window fullscreen when a session starts and restore it on the host "
-                + "list, so only the stream is fullscreen — not the picker.")
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-        }
-        #endif
-    }
-
-    // Stage-2 (Metal/VTDecompressionSession) is the default and only user-visible presenter — it
-    // recovers from a wedged decoder, where stage-1's AVSampleBufferDisplayLayer freezes hard on a
-    // lost HEVC reference. Stage-1 is kept reachable as a DEBUG-only override for diagnostics, like
-    // the controller test. Empty in release builds (no presenter UI; stage-2 always).
-    @ViewBuilder private var presenterSection: some View {
-        #if DEBUG
-        Section {
-            Picker("Presenter", selection: $presenter) {
-                Text("Stage 2 (default)").tag("stage2")
-                Text("Stage 1 (debug)").tag("stage1")
-            }
-        } header: {
-            Text("Video presenter · debug")
-        } footer: {
-            Text("Stage 2 (default) decodes explicitly and presents through Metal with a display "
-                + "link — it adds a capture→present (glass-to-glass) latency line in the HUD and "
-                + "self-recovers from decode stalls. Stage 1 feeds compressed video straight to the "
-                + "system display layer; it freezes on a lost HEVC reference frame, so it's a debug "
-                + "fallback only. Applies from the next session.")
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-        }
-        #endif
-    }
-
-    @ViewBuilder private var hdrSection: some View {
-        Section {
-            Toggle("10-bit HDR", isOn: $hdrEnabled)
-            Toggle("Full chroma (4:4:4)", isOn: $enable444)
-        } header: {
-            Text("Video quality")
-        } footer: {
-            Text("HDR requests a 10-bit BT.2020 PQ (HDR10) stream — it only engages when the host is "
-                + "sending HDR content AND this display supports HDR. 4:4:4 requests full chroma "
-                + "(sharper text/UI, more bandwidth) — it only engages when this device can "
-                + "hardware-decode it AND the host opted in. Otherwise the stream stays 8-bit "
-                + "4:2:0 SDR. Applies from the next session.")
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-        }
-    }
-
-    @ViewBuilder private var statisticsSection: some View {
-        Section {
-            Toggle("Show statistics overlay", isOn: $hudEnabled)
-            Picker("Position", selection: $hudPlacement) {
-                ForEach(HUDPlacement.allCases) { placement in
-                    Text(placement.label).tag(placement.rawValue)
-                }
-            }
-            .disabled(!hudEnabled)
-        } header: {
-            Text("Statistics")
-        } footer: {
-            Text(Self.statisticsFooter)
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-        }
-    }
-
-    @ViewBuilder private var experimentalSection: some View {
-        Section {
-            Toggle("Show game library", isOn: $libraryEnabled)
-        } header: {
-            Text("Experimental")
-        } footer: {
-            Text("Adds a “Browse Library…” action to each host that lists its games "
-                + "(Steam + custom) via the host's management API; tap a title to launch it. "
-                + "The host must expose that API on the LAN with a token "
-                + "(serve --mgmt-bind 0.0.0.0 --mgmt-token …).")
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-        }
-    }
-
-    @ViewBuilder private var controllersSection: some View {
-        Section {
-            if gamepads.controllers.isEmpty {
-                Text("No controllers detected")
-                    .foregroundStyle(.secondary)
-            } else {
-                ForEach(gamepads.controllers) { controller in
-                    controllerRow(controller)
-                }
-            }
-            Picker("Use controller", selection: $gamepads.preferredID) {
-                ForEach(controllerOptions, id: \.tag) { option in
-                    Text(option.label).tag(option.tag)
-                }
-            }
-            Picker("Controller type", selection: $gamepadType) {
-                ForEach(Self.padTypes, id: \.tag) { option in
-                    Text(option.label).tag(option.tag)
-                }
-            }
-            #if DEBUG && !os(tvOS)
-            Button("Test Controller…") { showControllerTest = true }
-                .disabled(gamepads.active == nil)
-                .sheet(isPresented: $showControllerTest) { ControllerTestView() }
-            #endif
-        } header: {
-            Text("Controllers")
-        } footer: {
-            Text(Self.controllersFooter)
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-        }
-    }
-
-    // MARK: - Bitrate
-
-    /// Slider domain, log-scale: the useful range spans three orders of magnitude
-    /// (a few Mbps … 3 Gbps) — linear would cram everything below 100 Mbps into the
-    /// first pixels.
-    private static let minSliderKbps = 2_000.0
-    private static let maxSliderKbps = 3_000_000.0
-
-    private static let bitrateFooter =
-        "Automatic uses the host's default bitrate (20 Mbps); the host clamps any choice "
-        + "to its supported range. Run a speed test from a host card's context menu to "
-        + "pick an informed value. Applies from the next session."
-
-    private static let gigabitWarning =
-        "Above 1 Gbps — test the network speed first (a host card's context menu → "
-        + "Test Network Speed…). A bitrate beyond what the link sustains causes loss "
-        + "and stutter."
-
-    /// `bitrateKbps == 0` is Automatic; switching to manual lands on the host default.
-    private var automaticBitrate: Binding<Bool> {
-        Binding(
-            get: { bitrateKbps == 0 },
-            set: { bitrateKbps = $0 ? 0 : 20_000 })
-    }
-
-    /// Slider position 0...1 ↔ kbps on the log scale, snapped to two significant figures
-    /// so the readout shows round numbers instead of 47_322.
-    private var bitrateSlider: Binding<Double> {
-        Binding(
-            get: {
-                let v = Double(bitrateKbps).clamped(Self.minSliderKbps, Self.maxSliderKbps)
-                return log(v / Self.minSliderKbps)
-                    / log(Self.maxSliderKbps / Self.minSliderKbps)
-            },
-            set: { pos in
-                let raw = Self.minSliderKbps
-                    * pow(Self.maxSliderKbps / Self.minSliderKbps, pos)
-                let mag = pow(10, floor(log10(raw)) - 1)
-                bitrateKbps = Int((raw / mag).rounded() * mag)
-            })
-    }
-
-    #if os(tvOS)
-    /// tvOS has no Slider — the focus-native control is the pushed picker (the same
-    /// pattern as the stream mode), so the rates are presets here, up to the same 3 Gbps
-    /// ceiling, plus a custom entry so a non-preset stored value stays visible.
-    private static let bitratePresets: [(label: String, tag: Int)] = [
-        ("Automatic", 0),
-        ("10 Mbps", 10_000),
-        ("20 Mbps", 20_000),
-        ("40 Mbps", 40_000),
-        ("80 Mbps", 80_000),
-        ("150 Mbps", 150_000),
-        ("300 Mbps", 300_000),
-        ("500 Mbps", 500_000),
-        ("1 Gbps", 1_000_000),
-        ("1.5 Gbps", 1_500_000),
-        ("2 Gbps", 2_000_000),
-        ("3 Gbps", 3_000_000),
-    ]
-
-    private var bitrateOptions: [(label: String, tag: Int)] {
-        var options = Self.bitratePresets
-        if !options.contains(where: { $0.tag == bitrateKbps }) {
-            options.insert(
-                (SpeedTestSheet.mbpsLabel(kbps: bitrateKbps) + " (custom)", bitrateKbps), at: 1)
-        }
-        return options
-    }
-
-    private static let placementOptions: [(label: String, tag: String)] =
-        HUDPlacement.allCases.map { ($0.label, $0.rawValue) }
-    #endif
-
-    // MARK: - Statistics
-
-    private static var statisticsFooter: String {
-        let base = "The overlay shows resolution, frame rate, throughput and latency while "
-            + "streaming, in the chosen corner."
-        #if os(macOS) || os(iOS)
-        return base + " Toggle it any time with ⌘⇧S."
-        #else
-        return base
-        #endif
-    }
-
-    // MARK: - Controllers
-
-    private static let padTypes: [(label: String, tag: Int)] = [
-        ("Automatic", 0),
-        ("Xbox 360", 1),
-        ("Xbox One", 3),
-        ("DualSense", 2),
-        ("DualShock 4", 4),
-    ]
-
-    private static let controllersFooter =
-        "One controller is forwarded to the host, as player 1 — Automatic picks the most "
-        + "recently connected one. The type is the virtual pad the host creates: Automatic "
-        + "matches the controller (a DualSense gets adaptive triggers, lightbar, touchpad "
-        + "and motion; a DualShock 4 the same minus adaptive triggers), and changes apply "
-        + "from the next session. Two identical controllers may swap a manual selection "
-        + "after reconnecting."
-
-    /// "Use controller" choices: Automatic, every forwardable controller, and — so a stale
-    /// pin stays visible instead of leaving the Picker selection tag-less — any pinned id
-    /// that is NOT among the selectable (extended) entries, present-but-unusable included.
-    private var controllerOptions: [(label: String, tag: String)] {
-        let selectable = gamepads.controllers.filter(\.isExtended)
-        var options: [(label: String, tag: String)] = [("Automatic", "")]
-        options += selectable.map { ($0.name, $0.id) }
-        if !gamepads.preferredID.isEmpty,
-           !selectable.contains(where: { $0.id == gamepads.preferredID }) {
-            options.append(("Unavailable controller", gamepads.preferredID))
-        }
-        return options
-    }
-
-    private func controllerRow(_ controller: GamepadManager.DiscoveredController) -> some View {
-        HStack(spacing: 10) {
-            Image(systemName: controller.hasTouchpadAndMotion ? "playstation.logo" : "gamecontroller.fill")
-                .foregroundStyle(.secondary)
-            VStack(alignment: .leading, spacing: 2) {
-                Text(controller.name)
-                HStack(spacing: 8) {
-                    if !controller.isExtended {
-                        Text(controller.productCategory)
-                    }
-                    if controller.hasAdaptiveTriggers {
-                        Image(systemName: "r2.button.roundedtop.horizontal")
-                    }
-                    if controller.hasLight {
-                        Image(systemName: "lightbulb.fill")
-                    }
-                    if controller.hasMotion {
-                        Image(systemName: "gyroscope")
-                    }
-                    if controller.hasHaptics {
-                        Image(systemName: "waveform")
-                    }
-                    if let level = controller.batteryLevel {
-                        Text("\(Int(level * 100))%")
-                        if controller.isCharging {
-                            Image(systemName: "bolt.fill")
-                        }
-                    }
-                }
-                .font(.geist(11, relativeTo: .caption2))
-                .foregroundStyle(.secondary)
-            }
-            Spacer()
-            if gamepads.active?.id == controller.id {
-                Text("In use")
-                    .font(.geist(11, .semibold, relativeTo: .caption2))
-                    .padding(.horizontal, 8)
-                    .padding(.vertical, 3)
-                    .background(Capsule().fill(.green.opacity(0.2)))
-                    .foregroundStyle(.green)
-            }
-        }
-    }
-
-    private func fillFromMainScreen() {
-        #if os(macOS)
-        guard let screen = NSScreen.main else { return }
-        let scale = screen.backingScaleFactor
-        width = Int(screen.frame.width * scale)
-        height = Int(screen.frame.height * scale)
-        hz = screen.maximumFramesPerSecond
-        #else
-        // nativeBounds is portrait-oriented pixels — streams are landscape.
-        let bounds = UIScreen.main.nativeBounds
-        width = Int(max(bounds.width, bounds.height))
-        height = Int(min(bounds.width, bounds.height))
-        hz = UIScreen.main.maximumFramesPerSecond
-        #if os(iOS)
-        // The native mode is the "This device" wheel row, so leave Custom mode if it was on.
-        customMode = false
-        #endif
-        #endif
-    }
-}
-
-extension Double {
-    /// The log-scale slider mapping needs a bounded input (Automatic stores 0).
-    fileprivate func clamped(_ lo: Double, _ hi: Double) -> Double {
-        Swift.min(Swift.max(self, lo), hi)
-    }
-}
-
-#if os(iOS)
-/// The settings groups, mirroring the macOS preference tabs. On iPad each is a sidebar row that
-/// drives the detail pane; on iPhone the same list collapses to pushed sub-pages. Internal (not
-/// private) so the screenshot harness can open SettingsView on a specific category.
-enum SettingsCategory: String, CaseIterable, Identifiable {
-    case general, display, audio, controllers, advanced, about
-
-    var id: Self { self }
-
-    var title: String {
-        switch self {
-        case .general: return "General"
-        case .display: return "Display"
-        case .audio: return "Audio"
-        case .controllers: return "Controllers"
-        case .advanced: return "Advanced"
-        case .about: return "About"
-        }
-    }
-
-    var symbol: String {
-        switch self {
-        case .general: return "gearshape"
-        case .display: return "display"
-        case .audio: return "speaker.wave.2"
-        case .controllers: return "gamecontroller"
-        case .advanced: return "slider.horizontal.3"
-        case .about: return "info.circle"
-        }
-    }
-}
-
-extension View {
-    /// Present the settings sheet large on iPad so the NavigationSplitView has room for its
-    /// sidebar + detail — a default form sheet is too narrow and the split view would collapse to
-    /// the iPhone push list. No-op on iPhone (the standard sheet is already right) and on iOS 17
-    /// (no `presentationSizing` — it falls back to the default sheet, which still degrades cleanly
-    /// to the push list).
-    @ViewBuilder
-    func settingsSheetSizing() -> some View {
-        if UIDevice.current.userInterfaceIdiom == .pad, #available(iOS 18, *) {
-            presentationSizing(.page)
-        } else {
-            self
-        }
-    }
-}
-#endif

clients/apple/Sources/PunktfunkClient/Stores/HostStore.swift

@@ -46,9 +46,24 @@ extension StoredHost {
     }
 }
 
-private extension Data {
-    /// Lowercase hex, no separators — to compare a pinned fingerprint against the mDNS `fp`.
-    var hexLower: String { map { String(format: "%02x", $0) }.joined() }
+/// The two joins of live mDNS discovery against the saved-host store, shared by the touch grid
+/// (HomeView) and the gamepad launcher (GamepadHomeView) so both screens classify hosts the same
+/// way. LAN-scoped like the underlying match: a host that isn't advertising here is "not seen",
+/// not proven off.
+extension HostDiscovery {
+    /// A saved host is "online" iff a live advert currently matches it (see `StoredHost.matches`).
+    /// Recomputed on every discovery change (the @Published set), so it tracks hosts
+    /// appearing/leaving the network live.
+    func advertises(_ host: StoredHost) -> Bool {
+        hosts.contains { host.matches($0) }
+    }
+
+    /// Discovered hosts not already saved — the saved list shows the rest, so this only surfaces
+    /// genuinely-new hosts on the network. Same match as `advertises`, so a saved host whose IP
+    /// changed (still fingerprint-matched) doesn't also appear as a stranger.
+    func unsaved(among saved: [StoredHost]) -> [DiscoveredHost] {
+        hosts.filter { d in !saved.contains { $0.matches(d) } }
+    }
 }
 
 @MainActor

clients/apple/Sources/PunktfunkClient/StreamHUDView.swift

@@ -1,107 +0,0 @@
-// The streaming overlay HUD: mode + fps/throughput, the capture→client (and, under the stage-2
-// presenter, capture→present) latency lines, the platform input hint, and disconnect.
-
-import PunktfunkKit
-import SwiftUI
-
-/// Which corner the HUD overlay occupies (persisted as `DefaultsKey.hudPlacement`). The raw
-/// values are stable on disk — rename the cases freely, never the strings.
-enum HUDPlacement: String, CaseIterable, Identifiable {
-    case topLeading, topTrailing, bottomLeading, bottomTrailing
-
-    var id: String { rawValue }
-
-    /// SwiftUI overlay alignment for `.overlay(alignment:)`.
-    var alignment: Alignment {
-        switch self {
-        case .topLeading: return .topLeading
-        case .topTrailing: return .topTrailing
-        case .bottomLeading: return .bottomLeading
-        case .bottomTrailing: return .bottomTrailing
-        }
-    }
-
-    /// The HUD's own stack hugs the screen edge it sits against, so its text aligns outward.
-    var isTrailing: Bool { self == .topTrailing || self == .bottomTrailing }
-
-    /// User-facing corner label.
-    var label: String {
-        switch self {
-        case .topLeading: return "Top Left"
-        case .topTrailing: return "Top Right"
-        case .bottomLeading: return "Bottom Left"
-        case .bottomTrailing: return "Bottom Right"
-        }
-    }
-}
-
-struct StreamHUDView: View {
-    @ObservedObject var model: SessionModel
-    let connection: PunktfunkConnection
-    var placement: HUDPlacement = .topTrailing
-
-    var body: some View {
-        VStack(alignment: placement.isTrailing ? .trailing : .leading, spacing: 4) {
-            HStack(spacing: 6) {
-                Circle()
-                    .fill(Color.accentColor)
-                    .frame(width: 7, height: 7)
-                Text("\(connection.width)×\(connection.height)@\(connection.refreshHz)  \(model.fps) fps  \(model.mbps, specifier: "%.1f") Mb/s")
-                    .font(.system(.caption, design: .monospaced))
-            }
-            if model.latencyValid {
-                // Capture→client-receipt (skew-corrected); excludes the layer's decode+present —
-                // see LatencyMeter. "(same-host)" when the host didn't answer the skew handshake.
-                Text("capture→client \(model.latencyP50Ms, specifier: "%.1f")/\(model.latencyP95Ms, specifier: "%.1f") ms p50/p95\(model.latencySkewCorrected ? "" : " (same-host)")")
-                    .font(.system(.caption2, design: .monospaced))
-                    .foregroundStyle(.secondary)
-            }
-            if model.presentLatencyValid {
-                // Capture→present (glass-to-glass, modulo host render→capture) — stage-2 presenter
-                // only; stage-1's layer presents internally with no per-frame stamp.
-                Text("capture→present \(model.presentLatencyP50Ms, specifier: "%.1f")/\(model.presentLatencyP95Ms, specifier: "%.1f") ms p50/p95\(model.presentLatencySkewCorrected ? "" : " (same-host)")")
-                    .font(.system(.caption2, design: .monospaced))
-                    .foregroundStyle(.secondary)
-            }
-            // While captured the cursor is hidden+frozen, so the button is keyboard-only
-            // (⌘⎋ or Cmd+Tab release the cursor; released, it's clickable again).
-            #if os(macOS)
-            Text(model.mouseCaptured
-                ? "⌘⎋ releases the mouse"
-                : "Click the stream to capture input")
-                .font(.geist(11, relativeTo: .caption2))
-                .foregroundStyle(.secondary)
-            // The client-side cursor (⌘⇧C) draws the local cursor over the stream instead of
-            // capturing it — the only accurate cursor for gamescope, whose capture has none.
-            Text("⌘⇧C toggles the on-screen cursor")
-                .font(.geist(11, relativeTo: .caption2))
-                .foregroundStyle(.secondary)
-            #elseif os(iOS)
-            // Touch always plays directly; ⌘⎋ (hardware keyboard) toggles kb/mouse.
-            Text(model.mouseCaptured
-                ? "⌘⎋ releases keyboard & mouse"
-                : "⌘⎋ captures keyboard & mouse")
-                .font(.geist(11, relativeTo: .caption2))
-                .foregroundStyle(.secondary)
-            #endif
-            #if os(tvOS)
-            // No focusable control during play: a focusable button steals the controller's
-            // A press (the focus engine consumes it before the host sees it). Disconnect is
-            // the Siri Remote's Menu button (.onExitCommand on the stream) — just hint it.
-            Text("Press Menu to disconnect")
-                .font(.geist(12, relativeTo: .caption))
-                .foregroundStyle(.secondary)
-            #else
-            // ⌘D lives on the app's Stream menu (so it still works when the HUD is hidden);
-            // this button is the in-overlay, click-to-disconnect affordance.
-            Button("Disconnect (⌘D)") { model.disconnect() }
-                .font(.geist(12, relativeTo: .caption))
-            #endif
-        }
-        .padding(10)
-        // Floating HUD over live video — the canonical Liquid-Glass overlay surface (26+);
-        // falls back to .regularMaterial below 26 (see GlassStyle).
-        .glassBackground(RoundedRectangle(cornerRadius: 10))
-        .padding(10)
-    }
-}

clients/apple/Sources/PunktfunkClient/Support/HexData.swift

@@ -0,0 +1,27 @@
+// Hex encode/decode for the trust surface — pinned certificate fingerprints and the mDNS `fp`
+// TXT value travel as lowercase hex.
+
+import Foundation
+
+extension Data {
+    /// Lowercase hex, no separators — to compare a pinned fingerprint against the mDNS `fp`.
+    var hexLower: String { map { String(format: "%02x", $0) }.joined() }
+
+    /// Parse an even-length hex string into bytes; nil on any non-hex character or odd length.
+    /// Used to turn an mDNS-advertised cert fingerprint into a connect pin.
+    init?(hexString: String) {
+        let chars = Array(hexString)
+        guard chars.count.isMultiple(of: 2) else { return nil }
+        var bytes = [UInt8]()
+        bytes.reserveCapacity(chars.count / 2)
+        var i = 0
+        while i < chars.count {
+            guard let hi = chars[i].hexDigitValue, let lo = chars[i + 1].hexDigitValue else {
+                return nil
+            }
+            bytes.append(UInt8(hi << 4 | lo))
+            i += 2
+        }
+        self = Data(bytes)
+    }
+}

clients/apple/Sources/PunktfunkClient/Trust/TrustCardView.swift

@@ -70,7 +70,7 @@ struct TrustCardView: View {
 
     /// 64 hex chars → four groups per line, two lines — easy to eyeball against the log.
     private static func format(fingerprint: Data) -> String {
-        let hex = fingerprint.map { String(format: "%02x", $0) }.joined()
+        let hex = fingerprint.hexLower
         let groups = stride(from: 0, to: hex.count, by: 8).map { i -> String in
             let start = hex.index(hex.startIndex, offsetBy: i)
             let end = hex.index(start, offsetBy: min(8, hex.count - i))

clients/apple/Sources/PunktfunkKit/AnnexB.swift

@@ -1,146 +0,0 @@
-// Annex-B HEVC → CoreMedia plumbing.
-//
-// The punktfunk host emits Annex-B access units with in-band VPS/SPS/PPS on every IDR
-// (deliberately — the client needs no out-of-band extradata). VideoToolbox wants the AVCC
-// flavor instead: a CMVideoFormatDescription built from the parameter sets, and sample
-// buffers whose NALs are 4-byte-length-prefixed. This file converts between the two.
-//
-// SCAFFOLD: written on the Linux host, not yet compiled against Xcode.
-
-import CoreMedia
-import Foundation
-
-public enum AnnexB {
-    /// Split an Annex-B stream into NAL units (start codes 00 00 01 / 00 00 00 01 stripped).
-    /// All zeros immediately preceding a start code are dropped: they're either the
-    /// 4-byte-code prefix or `trailing_zero_8bits` padding, never NAL payload (emulation
-    /// prevention keeps 00 00 0x out of conforming NAL bytes) — same policy as ffmpeg.
-    public static func nalUnits(in data: Data) -> [Data] {
-        var nals: [Data] = []
-        let bytes = [UInt8](data)
-        var i = 0
-        var start = -1
-        while i + 2 < bytes.count {
-            if bytes[i] == 0, bytes[i + 1] == 0, bytes[i + 2] == 1 {
-                var codeStart = i
-                while codeStart > 0, bytes[codeStart - 1] == 0 {
-                    codeStart -= 1
-                }
-                if start >= 0, start < codeStart {
-                    nals.append(Data(bytes[start..<codeStart]))
-                }
-                start = i + 3
-                i += 3
-            } else {
-                i += 1
-            }
-        }
-        if start >= 0, start < bytes.count {
-            nals.append(Data(bytes[start...]))
-        }
-        return nals
-    }
-
-    /// HEVC NAL unit type (bits 1..6 of the first byte).
-    public static func hevcNalType(_ nal: Data) -> UInt8 {
-        guard let first = nal.first else { return 0xFF }
-        return (first >> 1) & 0x3F
-    }
-
-    /// Build a format description from an IDR AU's in-band VPS(32)/SPS(33)/PPS(34).
-    /// Returns nil when the AU carries no parameter sets (non-IDR).
-    public static func formatDescription(fromIDR au: Data) -> CMVideoFormatDescription? {
-        var vps: Data?, sps: Data?, pps: Data?
-        for nal in nalUnits(in: au) {
-            switch hevcNalType(nal) {
-            case 32: vps = nal
-            case 33: sps = nal
-            case 34: pps = nal
-            default: break
-            }
-        }
-        guard let vps, let sps, let pps else { return nil }
-
-        var format: CMVideoFormatDescription?
-        let sets = [vps, sps, pps]
-        let status: OSStatus = sets[0].withUnsafeBytes { v in
-            sets[1].withUnsafeBytes { s in
-                sets[2].withUnsafeBytes { p in
-                    let pointers: [UnsafePointer<UInt8>] = [
-                        v.bindMemory(to: UInt8.self).baseAddress!,
-                        s.bindMemory(to: UInt8.self).baseAddress!,
-                        p.bindMemory(to: UInt8.self).baseAddress!,
-                    ]
-                    let sizes = [vps.count, sps.count, pps.count]
-                    return CMVideoFormatDescriptionCreateFromHEVCParameterSets(
-                        allocator: kCFAllocatorDefault,
-                        parameterSetCount: 3,
-                        parameterSetPointers: pointers,
-                        parameterSetSizes: sizes,
-                        nalUnitHeaderLength: 4,
-                        extensions: nil,
-                        formatDescriptionOut: &format)
-                }
-            }
-        }
-        return status == noErr ? format : nil
-    }
-
-    /// Re-pack an Annex-B AU as AVCC (4-byte big-endian length before each NAL), dropping
-    /// the parameter-set NALs (they live in the format description).
-    public static func avcc(from au: Data) -> Data {
-        var out = Data(capacity: au.count + 16)
-        for nal in nalUnits(in: au) {
-            let t = hevcNalType(nal)
-            if t == 32 || t == 33 || t == 34 { continue } // VPS/SPS/PPS
-            var len = UInt32(nal.count).bigEndian
-            withUnsafeBytes(of: &len) { out.append(contentsOf: $0) }
-            out.append(nal)
-        }
-        return out
-    }
-
-    /// Wrap one AU as a decode-ready CMSampleBuffer.
-    public static func sampleBuffer(
-        au: AccessUnit, format: CMVideoFormatDescription
-    ) -> CMSampleBuffer? {
-        let avccData = avcc(from: au.data)
-        var blockBuffer: CMBlockBuffer?
-        guard CMBlockBufferCreateWithMemoryBlock(
-            allocator: kCFAllocatorDefault, memoryBlock: nil,
-            blockLength: avccData.count, blockAllocator: kCFAllocatorDefault,
-            customBlockSource: nil, offsetToData: 0, dataLength: avccData.count,
-            flags: 0, blockBufferOut: &blockBuffer) == noErr,
-            let block = blockBuffer
-        else { return nil }
-        let copied = avccData.withUnsafeBytes { raw in
-            CMBlockBufferReplaceDataBytes(
-                with: raw.baseAddress!, blockBuffer: block,
-                offsetIntoDestination: 0, dataLength: avccData.count)
-        }
-        guard copied == noErr else { return nil }
-
-        var timing = CMSampleTimingInfo(
-            duration: .invalid,
-            presentationTimeStamp: CMTime(value: Int64(au.ptsNs), timescale: 1_000_000_000),
-            decodeTimeStamp: .invalid)
-        var sampleSize = avccData.count
-        var sample: CMSampleBuffer?
-        guard CMSampleBufferCreate(
-            allocator: kCFAllocatorDefault, dataBuffer: block, dataReady: true,
-            makeDataReadyCallback: nil, refcon: nil, formatDescription: format,
-            sampleCount: 1, sampleTimingEntryCount: 1, sampleTimingArray: &timing,
-            sampleSizeEntryCount: 1, sampleSizeArray: &sampleSize,
-            sampleBufferOut: &sample) == noErr
-        else { return nil }
-        // Low-latency display: render on arrival, don't wait for a clock.
-        if let attachments = CMSampleBufferGetSampleAttachmentsArray(sample!, createIfNecessary: true) {
-            let dict = unsafeBitCast(CFArrayGetValueAtIndex(attachments, 0), to: CFMutableDictionary.self)
-            CFDictionarySetValue(
-                dict,
-                Unmanaged.passUnretained(kCMSampleAttachmentKey_DisplayImmediately).toOpaque(),
-                Unmanaged.passUnretained(kCFBooleanTrue).toOpaque())
-        }
-        return sample
-    }
-}

clients/apple/Sources/PunktfunkKit/Audio/AudioDevices.swift

@@ -33,6 +33,49 @@ public enum AudioDevices {
         }
     }
 
+    /// Input channel count of the mic the picker would use — the device with this UID, or the
+    /// system default input when `uid` is empty. 0 when it can't be resolved. Drives the
+    /// "Microphone channel" picker (only shown for multi-channel interfaces).
+    public static func inputChannelCount(forUID uid: String) -> Int {
+        let id = uid.isEmpty ? defaultInputDevice() : deviceID(forUID: uid)
+        guard let id else { return 0 }
+        return channelCount(id, scope: kAudioObjectPropertyScopeInput)
+    }
+
+    private static func defaultInputDevice() -> AudioDeviceID? {
+        var address = AudioObjectPropertyAddress(
+            mSelector: kAudioHardwarePropertyDefaultInputDevice,
+            mScope: kAudioObjectPropertyScopeGlobal,
+            mElement: kAudioObjectPropertyElementMain)
+        var dev = AudioDeviceID(0)
+        var size = UInt32(MemoryLayout<AudioDeviceID>.size)
+        guard AudioObjectGetPropertyData(
+            AudioObjectID(kAudioObjectSystemObject), &address, 0, nil, &size, &dev) == noErr,
+            dev != 0
+        else { return nil }
+        return dev
+    }
+
+    /// Sum of channels across the device's streams in `scope` (its total input/output channels).
+    private static func channelCount(
+        _ id: AudioDeviceID, scope: AudioObjectPropertyScope
+    ) -> Int {
+        var address = AudioObjectPropertyAddress(
+            mSelector: kAudioDevicePropertyStreamConfiguration,
+            mScope: scope,
+            mElement: kAudioObjectPropertyElementMain)
+        var size: UInt32 = 0
+        guard AudioObjectGetPropertyDataSize(id, &address, 0, nil, &size) == noErr, size > 0
+        else { return 0 }
+        let raw = UnsafeMutableRawPointer.allocate(
+            byteCount: Int(size), alignment: MemoryLayout<AudioBufferList>.alignment)
+        defer { raw.deallocate() }
+        guard AudioObjectGetPropertyData(id, &address, 0, nil, &size, raw) == noErr else { return 0 }
+        let abl = UnsafeMutableAudioBufferListPointer(
+            raw.assumingMemoryBound(to: AudioBufferList.self))
+        return abl.reduce(0) { $0 + Int($1.mNumberChannels) }
+    }
+
     private static func all() -> [AudioDeviceID] {
         var address = AudioObjectPropertyAddress(
             mSelector: kAudioHardwarePropertyDevices,
@@ -62,7 +105,8 @@ public enum AudioDevices {
         return AudioObjectGetPropertyDataSize(id, &address, 0, nil, &size) == noErr && size > 0
     }
 
-    private static func describe(_ id: AudioDeviceID) -> AudioDevice? {
+    /// UID + human name for a live AudioDeviceID (nil if either property is unreadable).
+    static func describe(_ id: AudioDeviceID) -> AudioDevice? {
         guard let uid = stringProperty(id, kAudioDevicePropertyDeviceUID),
               let name = stringProperty(id, kAudioObjectPropertyName)
         else { return nil }

clients/apple/Sources/PunktfunkKit/Audio/AudioRing.swift

@@ -0,0 +1,129 @@
+import AVFoundation
+import os
+
+/// SPSC-ish jitter ring (interleaved float, `channels` per frame), drain thread → render
+/// callback. The unfair lock is held for microseconds; fine at render-callback rates. Priming:
+/// reads return silence until enough is buffered (at least `prefill`, and at least one
+/// packet more than the device's render quantum — large-buffer devices would otherwise
+/// chronically out-demand the prefill and oscillate prime → dropout → re-prime), and an
+/// underrun re-primes, concealing jitter as one short dip instead of sustained crackle.
+/// All counts stay whole frames (multiples of `channels`), so the interleave can never slip.
+final class AudioRing: @unchecked Sendable {
+    private var buf: [Float]
+    private var readIdx = 0
+    private var writeIdx = 0
+    private var primed = false
+    private var renderQuantum = 0
+    private let prefill: Int
+    private let highWater: Int
+    private let channels: Int
+    private let lock = OSAllocatedUnfairLock()
+
+    /// `capacity`/`prefill` in samples (interleaved — `channels` per frame, both whole frames).
+    init(capacity: Int, prefill: Int, channels: Int) {
+        buf = [Float](repeating: 0, count: capacity)
+        self.prefill = prefill
+        self.channels = channels
+        highWater = prefill * 4
+    }
+
+    func write(_ samples: UnsafePointer<Float>, count: Int) {
+        lock.lock()
+        defer { lock.unlock() }
+        let capacity = buf.count
+        // A single write larger than the whole ring would push readIdx PAST writeIdx below
+        // (inverting the valid range — corruption). It never happens (one decoded packet is far
+        // under capacity), but guard rather than corrupt.
+        guard count <= capacity else { return }
+        if writeIdx + count - readIdx > capacity {
+            readIdx = writeIdx + count - capacity // overflow: drop oldest
+        }
+        for i in 0..<count {
+            buf[(writeIdx + i) % capacity] = samples[i]
+        }
+        writeIdx += count
+        // Latency clamp: both ends run at 48 kHz, so backlog from a network stall (or
+        // creeping host-vs-DAC clock skew) never drains on its own — without this, one
+        // 300 ms hiccup leaves audio 300 ms behind video for the rest of the session.
+        // Shedding down to 2× prefill costs one audible blip instead.
+        if writeIdx - readIdx > highWater {
+            readIdx = writeIdx - prefill * 2
+        }
+    }
+
+    /// Fills `out` completely (silence beyond what's buffered).
+    func read(into out: UnsafeMutablePointer<Float>, count: Int) {
+        lock.lock()
+        defer { lock.unlock() }
+        renderQuantum = max(renderQuantum, count)
+        let available = writeIdx - readIdx
+        if !primed {
+            // One 5 ms host packet (240 frames × channels) of slack beyond the device's demand.
+            if available >= max(prefill, renderQuantum + 240 * channels) {
+                primed = true
+            } else {
+                for i in 0..<count { out[i] = 0 }
+                return
+            }
+        }
+        let n = min(available, count)
+        let capacity = buf.count
+        for i in 0..<n {
+            out[i] = buf[(readIdx + i) % capacity]
+        }
+        readIdx += n
+        if n < count {
+            for i in n..<count { out[i] = 0 }
+            primed = false // underrun — re-prime before resuming
+        }
+    }
+}
+
+/// CoreAudio channel layout for the canonical wire order FL FR FC LFE RL RR [SL SR]. nil for
+/// stereo (the standard layout is correct). For 5.1/7.1 we list explicit channel labels via
+/// `kAudioChannelLayoutTag_UseChannelDescriptions` — preset tags (DTS_5_1 etc.) don't reliably
+/// match Moonlight's order. NB the 7.1 mapping (verified against the WASAPI 0x63F + SPA orderings):
+/// wire idx 4-5 = RL/RR = the WAVE *back* pair → LeftSurround/RightSurround; idx 6-7 = SL/SR = the
+/// WAVE *side* pair → LeftSurroundDirect/RightSurroundDirect. (Using RearSurround* for 6-7 would
+/// swap side/back vs the Windows/Linux clients.)
+func wireChannelLayout(channels: Int) -> AVAudioChannelLayout? {
+    let labels: [AudioChannelLabel]
+    switch channels {
+    case 6:
+        labels = [
+            kAudioChannelLabel_Left, kAudioChannelLabel_Right, kAudioChannelLabel_Center,
+            kAudioChannelLabel_LFEScreen, kAudioChannelLabel_LeftSurround,
+            kAudioChannelLabel_RightSurround,
+        ]
+    case 8:
+        labels = [
+            kAudioChannelLabel_Left, kAudioChannelLabel_Right, kAudioChannelLabel_Center,
+            kAudioChannelLabel_LFEScreen,
+            kAudioChannelLabel_LeftSurround, kAudioChannelLabel_RightSurround, // wire RL/RR (back)
+            kAudioChannelLabel_LeftSurroundDirect, kAudioChannelLabel_RightSurroundDirect, // wire SL/SR (side)
+        ]
+    default:
+        return nil
+    }
+    let size = MemoryLayout<AudioChannelLayout>.size
+        + (labels.count - 1) * MemoryLayout<AudioChannelDescription>.stride
+    let raw = UnsafeMutableRawPointer.allocate(byteCount: size, alignment: 16)
+    defer { raw.deallocate() }
+    let layout = raw.bindMemory(to: AudioChannelLayout.self, capacity: 1)
+    layout.pointee.mChannelLayoutTag = kAudioChannelLayoutTag_UseChannelDescriptions
+    layout.pointee.mChannelBitmap = AudioChannelBitmap(rawValue: 0)
+    layout.pointee.mNumberChannelDescriptions = UInt32(labels.count)
+    // `mChannelDescriptions` is the C variable-length tail array (declared `[1]`, over-allocated
+    // above). Scope the pointer with `withUnsafeMutablePointer` — taking `&…mChannelDescriptions`
+    // inline yields a pointer valid only for that expression, so building a buffer from it that
+    // outlives the call is a dangling-pointer bug. Inside the closure it stays valid while we fill it.
+    withUnsafeMutablePointer(to: &layout.pointee.mChannelDescriptions) { tail in
+        let descs = UnsafeMutableBufferPointer(start: tail, count: labels.count)
+        for (i, lbl) in labels.enumerated() {
+            descs[i] = AudioChannelDescription(
+                mChannelLabel: lbl, mChannelFlags: AudioChannelFlags(rawValue: 0),
+                mCoordinates: (0, 0, 0))
+        }
+    }
+    return AVAudioChannelLayout(layout: layout)
+}

clients/apple/Sources/PunktfunkKit/Audio/SessionAudio.swift

@@ -5,9 +5,10 @@
 //   AVAudioSourceNode pulls from the ring (silence on underrun with re-priming, so a
 //   network gap costs one dip, not permanent crackle).
 //
-//   mic → host: a second AVAudioEngine taps the input device, resamples to 48 kHz
-//   stereo, slices 20 ms chunks, Opus-encodes, and sendMic()s each packet — the host
-//   feeds them into a virtual PipeWire source.
+//   mic → host: a second AVAudioEngine taps the input device, folds it to one mono bus (the
+//   chosen channel of a multi-channel interface, or a sum of all channels), resamples to 48 kHz
+//   stereo, slices 20 ms chunks, Opus-encodes, and sendMic()s each packet — the host feeds them
+//   into a virtual PipeWire source.
 //
 // Devices are chosen by UID ("" = system default: the engine is then never pinned to a
 // concrete device and follows default-device changes). Two engines, not one — a single
@@ -19,99 +20,6 @@ import os
 
 private let log = Logger(subsystem: "io.unom.punktfunk", category: "audio")
 
-/// SPSC-ish jitter ring (interleaved float, `channels` per frame), drain thread → render
-/// callback. The unfair lock is held for microseconds; fine at render-callback rates. Priming:
-/// reads return silence until enough is buffered (at least `prefill`, and at least one
-/// packet more than the device's render quantum — large-buffer devices would otherwise
-/// chronically out-demand the prefill and oscillate prime → dropout → re-prime), and an
-/// underrun re-primes, concealing jitter as one short dip instead of sustained crackle.
-/// All counts stay whole frames (multiples of `channels`), so the interleave can never slip.
-final class AudioRing: @unchecked Sendable {
-    private var buf: [Float]
-    private var readIdx = 0
-    private var writeIdx = 0
-    private var primed = false
-    private var renderQuantum = 0
-    private let prefill: Int
-    private let highWater: Int
-    private let channels: Int
-    private let lock = OSAllocatedUnfairLock()
-
-    /// `capacity`/`prefill` in samples (interleaved — `channels` per frame, both whole frames).
-    init(capacity: Int, prefill: Int, channels: Int) {
-        buf = [Float](repeating: 0, count: capacity)
-        self.prefill = prefill
-        self.channels = channels
-        highWater = prefill * 4
-    }
-
-    func write(_ samples: UnsafePointer<Float>, count: Int) {
-        lock.lock()
-        defer { lock.unlock() }
-        let capacity = buf.count
-        // A single write larger than the whole ring would push readIdx PAST writeIdx below
-        // (inverting the valid range — corruption). It never happens (one decoded packet is far
-        // under capacity), but guard rather than corrupt.
-        guard count <= capacity else { return }
-        if writeIdx + count - readIdx > capacity {
-            readIdx = writeIdx + count - capacity // overflow: drop oldest
-        }
-        for i in 0..<count {
-            buf[(writeIdx + i) % capacity] = samples[i]
-        }
-        writeIdx += count
-        // Latency clamp: both ends run at 48 kHz, so backlog from a network stall (or
-        // creeping host-vs-DAC clock skew) never drains on its own — without this, one
-        // 300 ms hiccup leaves audio 300 ms behind video for the rest of the session.
-        // Shedding down to 2× prefill costs one audible blip instead.
-        if writeIdx - readIdx > highWater {
-            readIdx = writeIdx - prefill * 2
-        }
-    }
-
-    /// Fills `out` completely (silence beyond what's buffered).
-    func read(into out: UnsafeMutablePointer<Float>, count: Int) {
-        lock.lock()
-        defer { lock.unlock() }
-        renderQuantum = max(renderQuantum, count)
-        let available = writeIdx - readIdx
-        if !primed {
-            // One 5 ms host packet (240 frames × channels) of slack beyond the device's demand.
-            if available >= max(prefill, renderQuantum + 240 * channels) {
-                primed = true
-            } else {
-                for i in 0..<count { out[i] = 0 }
-                return
-            }
-        }
-        let n = min(available, count)
-        let capacity = buf.count
-        for i in 0..<n {
-            out[i] = buf[(readIdx + i) % capacity]
-        }
-        readIdx += n
-        if n < count {
-            for i in n..<count { out[i] = 0 }
-            primed = false // underrun — re-prime before resuming
-        }
-    }
-}
-
-private final class StopFlag: @unchecked Sendable {
-    private let lock = NSLock()
-    private var stopped = false
-    var isStopped: Bool {
-        lock.lock()
-        defer { lock.unlock() }
-        return stopped
-    }
-    func stop() {
-        lock.lock()
-        stopped = true
-        lock.unlock()
-    }
-}
-
 /// Render-block-owned scratch storage: freed exactly when the closure (and thus the
 /// last possible render call) is released — never racing CoreAudio.
 private final class ScratchBuffer {
@@ -120,50 +28,6 @@ private final class ScratchBuffer {
     deinit { ptr.deallocate() }
 }
 
-/// CoreAudio channel layout for the canonical wire order FL FR FC LFE RL RR [SL SR]. nil for
-/// stereo (the standard layout is correct). For 5.1/7.1 we list explicit channel labels via
-/// `kAudioChannelLayoutTag_UseChannelDescriptions` — preset tags (DTS_5_1 etc.) don't reliably
-/// match Moonlight's order. NB the 7.1 mapping (verified against the WASAPI 0x63F + SPA orderings):
-/// wire idx 4-5 = RL/RR = the WAVE *back* pair → LeftSurround/RightSurround; idx 6-7 = SL/SR = the
-/// WAVE *side* pair → LeftSurroundDirect/RightSurroundDirect. (Using RearSurround* for 6-7 would
-/// swap side/back vs the Windows/Linux clients.)
-private func wireChannelLayout(channels: Int) -> AVAudioChannelLayout? {
-    let labels: [AudioChannelLabel]
-    switch channels {
-    case 6:
-        labels = [
-            kAudioChannelLabel_Left, kAudioChannelLabel_Right, kAudioChannelLabel_Center,
-            kAudioChannelLabel_LFEScreen, kAudioChannelLabel_LeftSurround,
-            kAudioChannelLabel_RightSurround,
-        ]
-    case 8:
-        labels = [
-            kAudioChannelLabel_Left, kAudioChannelLabel_Right, kAudioChannelLabel_Center,
-            kAudioChannelLabel_LFEScreen,
-            kAudioChannelLabel_LeftSurround, kAudioChannelLabel_RightSurround, // wire RL/RR (back)
-            kAudioChannelLabel_LeftSurroundDirect, kAudioChannelLabel_RightSurroundDirect, // wire SL/SR (side)
-        ]
-    default:
-        return nil
-    }
-    let size = MemoryLayout<AudioChannelLayout>.size
-        + (labels.count - 1) * MemoryLayout<AudioChannelDescription>.stride
-    let raw = UnsafeMutableRawPointer.allocate(byteCount: size, alignment: 16)
-    defer { raw.deallocate() }
-    let layout = raw.bindMemory(to: AudioChannelLayout.self, capacity: 1)
-    layout.pointee.mChannelLayoutTag = kAudioChannelLayoutTag_UseChannelDescriptions
-    layout.pointee.mChannelBitmap = AudioChannelBitmap(rawValue: 0)
-    layout.pointee.mNumberChannelDescriptions = UInt32(labels.count)
-    let descs = UnsafeMutableBufferPointer(
-        start: &layout.pointee.mChannelDescriptions, count: labels.count)
-    for (i, lbl) in labels.enumerated() {
-        descs[i] = AudioChannelDescription(
-            mChannelLabel: lbl, mChannelFlags: AudioChannelFlags(rawValue: 0),
-            mCoordinates: (0, 0, 0))
-    }
-    return AVAudioChannelLayout(layout: layout)
-}
-
 public final class SessionAudio {
     private let connection: PunktfunkConnection
     private let flag = StopFlag()
@@ -205,10 +69,11 @@ public final class SessionAudio {
     /// ASYNCHRONOUS: it activates the AVAudioSession off the main thread, then starts the engines on
     /// a later main-queue hop (gated by `!flag.isStopped`) — so playback is live shortly after, not
     /// on return. The mic may start later still if the permission prompt is pending.
-    public func start(speakerUID: String, micUID: String, micEnabled: Bool) {
+    public func start(speakerUID: String, micUID: String, micChannel: Int, micEnabled: Bool) {
         #if os(macOS)
         // No AVAudioSession on macOS — start the engines directly (caller's thread, as before).
-        startEngines(speakerUID: speakerUID, micUID: micUID, micEnabled: micEnabled)
+        startEngines(
+            speakerUID: speakerUID, micUID: micUID, micChannel: micChannel, micEnabled: micEnabled)
         #else
         // Configure + activate the session OFF the main thread (it blocks on the audio server),
         // then start the engines back on the main thread once it's active — engine routing/format
@@ -218,7 +83,9 @@ public final class SessionAudio {
             self.activateAudioSession(micEnabled: micEnabled)
             DispatchQueue.main.async { [weak self] in
                 guard let self, !self.flag.isStopped else { return }
-                self.startEngines(speakerUID: speakerUID, micUID: micUID, micEnabled: micEnabled)
+                self.startEngines(
+                    speakerUID: speakerUID, micUID: micUID, micChannel: micChannel,
+                    micEnabled: micEnabled)
             }
         }
         #endif
@@ -252,7 +119,9 @@ public final class SessionAudio {
 
     /// Build + start the playback engine (and the mic uplink when enabled + authorized). Main
     /// thread (engine setup); on iOS/tvOS the session is already active by the time this runs.
-    private func startEngines(speakerUID: String, micUID: String, micEnabled: Bool) {
+    private func startEngines(
+        speakerUID: String, micUID: String, micChannel: Int, micEnabled: Bool
+    ) {
         startPlayback(speakerUID: speakerUID)
         #if os(tvOS)
         // No app-accessible microphone input on tvOS — playback only.
@@ -260,12 +129,12 @@ public final class SessionAudio {
         guard micEnabled else { return }
         switch AVCaptureDevice.authorizationStatus(for: .audio) {
         case .authorized:
-            startCapture(micUID: micUID)
+            startCapture(micUID: micUID, micChannel: micChannel)
         case .notDetermined:
             AVCaptureDevice.requestAccess(for: .audio) { [weak self] granted in
                 DispatchQueue.main.async {
                     guard let self, granted, !self.flag.isStopped else { return }
-                    self.startCapture(micUID: micUID)
+                    self.startCapture(micUID: micUID, micChannel: micChannel)
                 }
             }
         default:
@@ -417,7 +286,7 @@ public final class SessionAudio {
     // MARK: - Mic (mic → host)
 
     #if !os(tvOS)
-    private func startCapture(micUID: String) {
+    private func startCapture(micUID: String, micChannel: Int) {
         let engine = AVAudioEngine()
         let input = engine.inputNode
         #if os(macOS)
@@ -437,8 +306,63 @@ public final class SessionAudio {
             log.error("no usable input device — mic uplink disabled")
             return
         }
-        guard let encoder = try? OpusEncoder(),
-              let resampler = AVAudioConverter(from: inFormat, to: encoder.pcmFormat),
+
+        // Multi-channel-interface handling. A pro interface exposes N discrete inputs with the mic
+        // on ONE of them, but AVAudioConverter's N→stereo downmix takes channels 0/1 — dead
+        // silence when the mic sits higher up (the classic "host receives zeros"). So we fold the
+        // input to a single mono bus OURSELVES and resample that. micChannel: 0 = Auto (sum every
+        // channel — a lone hot mic passes at full level), n≥1 pins 1-based input channel n.
+        let inChannels = Int(inFormat.channelCount)
+        let pinnedChannel: Int? = {
+            guard micChannel >= 1 else { return nil }
+            let idx = micChannel - 1
+            guard idx < inChannels else {
+                log.warning(
+                    "mic channel \(micChannel) out of range (device has \(inChannels)) — mixing all")
+                return nil
+            }
+            return idx
+        }()
+        let channelPlan = pinnedChannel.map { "channel \($0 + 1)/\(inChannels)" }
+            ?? (inChannels > 1 ? "mix \(inChannels)ch→mono" : "mono")
+
+        // Name the device we're ACTUALLY recording from + its format + how we fold it, once per
+        // session. This single line localizes the whole class of "host receives silence" failures
+        // that otherwise need a host-side tone injection to pin down: a UID that silently fell back
+        // to the default, the wrong device being live, or the wrong channel picked.
+        #if os(macOS)
+        if let unit = input.audioUnit, let live = Self.currentDevice(of: unit),
+           let dev = AudioDevices.describe(live) {
+            if !micUID.isEmpty, dev.uid != micUID {
+                log.warning("""
+                    mic selection not honored — requested \(micUID) but capturing from \
+                    \(dev.name) [\(dev.uid)]; the device's UID likely changed (replug) — \
+                    reselect it in Settings
+                    """)
+            }
+            log.info("""
+                mic capture: \(dev.name) [\(dev.uid)] — \(Int(inFormat.sampleRate)) Hz, \
+                \(inChannels) ch, \(channelPlan)
+                """)
+        } else {
+            log.info("""
+                mic capture: <device unavailable> — \(Int(inFormat.sampleRate)) Hz, \
+                \(inChannels) ch, \(channelPlan)
+                """)
+        }
+        #else
+        log.info(
+            "mic capture: \(Int(inFormat.sampleRate)) Hz, \(inChannels) ch, \(channelPlan)")
+        #endif
+
+        // Encode a single mono bus (folded from `inFormat` in the tap): the resampler goes
+        // mono@inputSR → the encoder's 48 kHz stereo, so it handles both the rate change and the
+        // mono→stereo duplication, and the wrong-channel downmix never happens.
+        guard let monoFormat = AVAudioFormat(
+                  commonFormat: .pcmFormatFloat32, sampleRate: inFormat.sampleRate,
+                  channels: 1, interleaved: false),
+              let encoder = try? OpusEncoder(),
+              let resampler = AVAudioConverter(from: monoFormat, to: encoder.pcmFormat),
               let chunk = AVAudioPCMBuffer(
                   pcmFormat: encoder.pcmFormat, frameCapacity: OpusEncoder.framesPerPacket)
         else {
@@ -454,11 +378,59 @@ public final class SessionAudio {
         let connection = connection
         let flag = flag
 
+        // Silence tripwire (tap-confined): a "recording" app can be handed pure digital zeros —
+        // a zeroed input-volume slider, a stale TCC grant, a muted device, OR the wrong channel
+        // picked — and everything downstream looks alive while the host gets silence. Track the
+        // peak of the EXTRACTED mono bus over the first ~10 s (not the raw device — a mic present
+        // on a channel we didn't grab must still read as silence) and emit exactly ONE verdict.
+        // This is the log line whose absence made the last occurrence take a host-side tone.
+        let silenceWindow = Int(inFormat.sampleRate * 10)
+        let deviceLabel = micUID.isEmpty ? "default input" : micUID
+        var framesInspected = 0
+        var inputPeak: Float = 0
+        var levelReported = false
+
         input.installTap(onBus: 0, bufferSize: 2048, format: inFormat) { buffer, _ in
             if flag.isStopped { return }
+            let frames = Int(buffer.frameLength)
+            guard frames > 0, let src = buffer.floatChannelData,
+                  let mono = AVAudioPCMBuffer(
+                      pcmFormat: monoFormat, frameCapacity: buffer.frameLength),
+                  let dst = mono.floatChannelData?[0]
+            else { return }
+            mono.frameLength = buffer.frameLength
+
+            // Fold the multi-channel input down to the one mono bus we encode.
+            Self.foldToMono(
+                input: src, frames: frames, channels: Int(buffer.format.channelCount),
+                interleaved: buffer.format.isInterleaved, pinned: pinnedChannel, out: dst)
+
+            if !levelReported {
+                var localPeak: Float = 0
+                for i in 0..<frames where abs(dst[i]) > localPeak { localPeak = abs(dst[i]) }
+                if localPeak > inputPeak { inputPeak = localPeak }
+                framesInspected += frames
+                if framesInspected >= silenceWindow {
+                    levelReported = true
+                    if inputPeak == 0 {
+                        log.warning("""
+                            mic uplink has been pure digital SILENCE for 10 s (\(deviceLabel), \
+                            \(channelPlan)) — check the input level (System Settings → Sound → \
+                            Input), Privacy & Security → Microphone, and the Microphone channel in \
+                            Settings; the host is receiving zeros
+                            """)
+                    } else {
+                        let dbfs = 20 * log10(inputPeak)
+                        log.info("""
+                            mic uplink OK — peak \(String(format: "%.1f", dbfs)) dBFS over first \
+                            10 s (\(deviceLabel), \(channelPlan))
+                            """)
+                    }
+                }
+            }
+
             let ratio = 48_000 / inFormat.sampleRate
-            let outCapacity = AVAudioFrameCount(
-                (Double(buffer.frameLength) * ratio).rounded(.up) + 64)
+            let outCapacity = AVAudioFrameCount((Double(frames) * ratio).rounded(.up) + 64)
             guard let staging = AVAudioPCMBuffer(
                 pcmFormat: encoder.pcmFormat, frameCapacity: outCapacity)
             else { return }
@@ -471,7 +443,7 @@ public final class SessionAudio {
                 }
                 fed = true
                 outStatus.pointee = .haveData
-                return buffer
+                return mono
             }
             guard status != .error, let p = staging.floatChannelData?[0] else { return }
             fifo.append(contentsOf: UnsafeBufferPointer(
@@ -515,6 +487,42 @@ public final class SessionAudio {
         stateLock.unlock()
         log.info("mic uplink started (\(micUID.isEmpty ? "default input" : micUID))")
     }
+
+    /// Fold `channels` of input (`floatChannelData` layout: `interleaved` → one buffer strided by
+    /// channel count; else one buffer per channel) down to a single mono bus in `out` (`frames`
+    /// long). `pinned` (0-based, must be `< channels`) copies exactly that channel — the fix for a
+    /// mic on one input of a multi-channel interface; `nil` sums every channel, clamped to
+    /// [-1, 1], so a lone hot channel still passes at full level instead of the silent 0/1 the
+    /// default N→stereo downmix would grab. Pure + `internal` for unit testing the index math.
+    static func foldToMono(
+        input: UnsafePointer<UnsafeMutablePointer<Float>>, frames: Int, channels: Int,
+        interleaved: Bool, pinned: Int?, out: UnsafeMutablePointer<Float>
+    ) {
+        if let ch = pinned, ch < channels {
+            if interleaved {
+                let d = input[0]
+                for i in 0..<frames { out[i] = d[i * channels + ch] }
+            } else {
+                let d = input[ch]
+                for i in 0..<frames { out[i] = d[i] }
+            }
+        } else if interleaved {
+            let d = input[0]
+            for i in 0..<frames {
+                var s: Float = 0
+                for c in 0..<channels { s += d[i * channels + c] }
+                out[i] = max(-1, min(1, s))
+            }
+        } else {
+            let d0 = input[0]
+            for i in 0..<frames { out[i] = d0[i] }
+            for c in 1..<channels {
+                let d = input[c]
+                for i in 0..<frames { out[i] += d[i] }
+            }
+            if channels > 1 { for i in 0..<frames { out[i] = max(-1, min(1, out[i])) } }
+        }
+    }
     #endif
 
     #if os(macOS)
@@ -524,5 +532,18 @@ public final class SessionAudio {
             unit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0,
             &dev, UInt32(MemoryLayout<AudioDeviceID>.size)) == noErr
     }
+
+    /// Read back the AUHAL's live device — the definitive "what are we actually capturing
+    /// from", which catches a selection that succeeded on paper but silently fell back to
+    /// the system default (a stale/changed UID, a device that vanished between resolve and
+    /// start). 0 / an error means we couldn't tell.
+    private static func currentDevice(of unit: AudioUnit) -> AudioDeviceID? {
+        var dev = AudioDeviceID(0)
+        var size = UInt32(MemoryLayout<AudioDeviceID>.size)
+        let status = AudioUnitGetProperty(
+            unit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &dev, &size)
+        guard status == noErr, dev != 0 else { return nil }
+        return dev
+    }
     #endif
 }

clients/apple/Sources/PunktfunkKit/Connection/ClientIdentity.swift

@@ -0,0 +1,59 @@
+// The client's persistent identity + the SPAKE2 PIN pairing ceremony — the trust
+// bootstrap that precedes any pinned PunktfunkConnection.
+
+import Foundation
+import PunktfunkCore
+
+/// This client's persistent self-signed identity. Generate ONCE with `generateIdentity()`,
+/// store both PEMs (Keychain), present on every connect — the certificate's fingerprint is
+/// how hosts recognize this client after pairing.
+public struct ClientIdentity: Sendable {
+    public let certPEM: String
+    public let keyPEM: String
+    public init(certPEM: String, keyPEM: String) {
+        self.certPEM = certPEM
+        self.keyPEM = keyPEM
+    }
+}
+
+/// Generate a fresh client identity (self-signed cert + key, PEM).
+public func generateIdentity() throws -> ClientIdentity {
+    var cert = [CChar](repeating: 0, count: 4096)
+    var key = [CChar](repeating: 0, count: 4096)
+    let rc = punktfunk_generate_identity(&cert, UInt(cert.count), &key, UInt(key.count))
+    guard rc == PUNKTFUNK_STATUS_OK.rawValue else {
+        throw PunktfunkClientError.status(rc)
+    }
+    return ClientIdentity(certPEM: String(cString: cert), keyPEM: String(cString: key))
+}
+
+/// Run the PIN pairing ceremony: the host displays a 4-digit PIN (its log/UI), the user
+/// types it here. On success the host stores this client's identity and the returned
+/// fingerprint is the host's now-VERIFIED identity — persist it and pass it as `pinSHA256`
+/// to every later connect. Throws `.wrongPIN` when the proof is rejected.
+public func pair(
+    host: String, port: UInt16 = 9777,
+    identity: ClientIdentity, pin: String, name: String,
+    timeoutMs: UInt32 = 90_000
+) throws -> Data {
+    var observed = [UInt8](repeating: 0, count: 32)
+    // The C header types PunktfunkStatus as a bare int32 (C17, no enum import), so the ABI
+    // functions return Int32 directly — compare against the enum constants' rawValue, the
+    // same bridging the connection methods use (statusOK etc.).
+    let rc = host.withCString { cs in
+        identity.certPEM.withCString { cert in
+            identity.keyPEM.withCString { key in
+                pin.withCString { p in
+                    name.withCString { n in
+                        punktfunk_pair(cs, port, cert, key, p, n, &observed, timeoutMs)
+                    }
+                }
+            }
+        }
+    }
+    switch rc {
+    case PUNKTFUNK_STATUS_OK.rawValue: return Data(observed)
+    case PUNKTFUNK_STATUS_CRYPTO.rawValue: throw PunktfunkClientError.wrongPIN
+    default: throw PunktfunkClientError.status(rc)
+    }
+}

clients/apple/Sources/PunktfunkKit/Connection/ClientTLS.swift

@@ -4,10 +4,16 @@
 //
 // To present that identity, URLSession needs a SecIdentity (cert + private key pair). The client
 // stores its identity as PEM (rcgen ECDSA P-256, PKCS#8 key). We rebuild a SecIdentity natively:
-// CryptoKit parses the key → its X9.63 form → a SecKey, the cert PEM → a SecCertificate, and
-// SecIdentityCreateWithCertificate pairs them via the Keychain. This is macOS-only
-// (SecIdentityCreateWithCertificate is unavailable on iOS — that path will need a PKCS#12); the
-// client library is macOS-first today.
+// CryptoKit parses the key → its X9.63 form → a SecKey, the cert PEM → a SecCertificate. From
+// there the two platform families diverge because `SecIdentityCreateWithCertificate` — the
+// straight-line "pair these two" API — is macOS-only:
+//   - macOS: SecIdentityCreateWithCertificate does the pairing directly once the key is in the
+//     Keychain (a plain `SecItemAdd`).
+//   - iOS/tvOS: that API is unavailable. Instead, add BOTH the key and the certificate to the
+//     Keychain (under the same application tag) and query `kSecClassIdentity` — the system
+//     correlates a stored cert against a stored key with a matching public key and vends the pair
+//     as one `SecIdentity`, no PKCS#12 needed. This is the standard non-macOS technique for
+//     "I already have a raw cert + key, not a .p12".
 
 import CryptoKit
 import Foundation
@@ -18,15 +24,12 @@ private let tlsLog = Logger(subsystem: "io.unom.punktfunk", category: "library-t
 
 enum ClientTLS {
     enum TLSError: LocalizedError {
-        case unsupportedPlatform
         case badKey(String)
         case badCert
         case identity(String)
 
         var errorDescription: String? {
             switch self {
-            case .unsupportedPlatform:
-                return "Library mTLS is supported on macOS only right now."
             case .badKey(let why): return "Couldn't load the client key: \(why)"
             case .badCert: return "Couldn't load the client certificate."
             case .identity(let why): return "Couldn't build the client identity: \(why)"
@@ -45,9 +48,8 @@ enum ClientTLS {
     }
 
     /// Build a `SecIdentity` from the client's PEM cert + PKCS#8 P-256 key. Pairs them via the
-    /// Keychain (the key is stored once under a stable tag, so repeat calls reuse it).
+    /// Keychain (stored once under a stable tag, so repeat calls reuse it).
     static func makeIdentity(certPEM: String, keyPEM: String) throws -> SecIdentity {
-        #if os(macOS)
         // Key: CryptoKit accepts the SEC1 or PKCS#8 PEM; its x963 form is what SecKey wants.
         let priv: P256.Signing.PrivateKey
         do {
@@ -71,9 +73,11 @@ enum ClientTLS {
               let cert = SecCertificateCreateWithData(nil, certDER as CFData)
         else { throw TLSError.badCert }
 
+        let tag = Data("io.unom.punktfunk.library-client-key".utf8)
+
+        #if os(macOS)
         // The key must live in a Keychain for SecIdentityCreateWithCertificate to pair it with the
         // cert. Add it under a stable tag; a duplicate just means a previous fetch already did.
-        let tag = Data("io.unom.punktfunk.library-client-key".utf8)
         let add: [CFString: Any] = [
             kSecClass: kSecClassKey,
             kSecAttrApplicationTag: tag,
@@ -81,7 +85,7 @@ enum ClientTLS {
         ]
         let status = SecItemAdd(add as CFDictionary, nil)
         guard status == errSecSuccess || status == errSecDuplicateItem else {
-            throw TLSError.identity("keychain add failed (OSStatus \(status))")
+            throw TLSError.identity("keychain add key failed (OSStatus \(status))")
         }
 
         var identity: SecIdentity?
@@ -91,20 +95,64 @@ enum ClientTLS {
         }
         return identity
         #else
-        throw TLSError.unsupportedPlatform
+        // Add the key (tagged) and the certificate (matched to it by public key) separately —
+        // a duplicate of either just means a previous fetch already added it.
+        let addKey: [CFString: Any] = [
+            kSecClass: kSecClassKey,
+            kSecAttrApplicationTag: tag,
+            kSecValueRef: secKey,
+        ]
+        let keyStatus = SecItemAdd(addKey as CFDictionary, nil)
+        guard keyStatus == errSecSuccess || keyStatus == errSecDuplicateItem else {
+            throw TLSError.identity("keychain add key failed (OSStatus \(keyStatus))")
+        }
+
+        let addCert: [CFString: Any] = [
+            kSecClass: kSecClassCertificate,
+            kSecValueRef: cert,
+        ]
+        let certStatus = SecItemAdd(addCert as CFDictionary, nil)
+        guard certStatus == errSecSuccess || certStatus == errSecDuplicateItem else {
+            throw TLSError.identity("keychain add certificate failed (OSStatus \(certStatus))")
+        }
+
+        // The system correlates the just-added cert against the tagged key (matching public key)
+        // and vends the pair as a kSecClassIdentity — the tag filter here matches the KEY half.
+        var identityRef: CFTypeRef?
+        let query: [CFString: Any] = [
+            kSecClass: kSecClassIdentity,
+            kSecAttrApplicationTag: tag,
+            kSecReturnRef: true,
+        ]
+        let idStatus = SecItemCopyMatching(query as CFDictionary, &identityRef)
+        guard idStatus == errSecSuccess, let identityRef else {
+            throw TLSError.identity("SecItemCopyMatching(kSecClassIdentity) (OSStatus \(idStatus))")
+        }
+        // Safe: a kSecClassIdentity query with kSecReturnRef always vends a SecIdentity.
+        return (identityRef as! SecIdentity) // swiftlint:disable:this force_cast
         #endif
     }
 }
 
 /// URLSession delegate that pins the host's self-signed cert (by the fingerprint the client
-/// already trusts) and presents the client identity for the mTLS client-cert challenge.
+/// already trusts) and presents the client identity for the mTLS client-cert challenge — but ONLY
+/// for challenges from `host`:`port` (the punktfunk host itself). A session built with this
+/// delegate is safe to reuse for OTHER origins too (e.g. a GOG/Heroic/Xbox cover-art CDN): a
+/// non-matching origin falls through to `.performDefaultHandling`, i.e. normal system trust
+/// evaluation and no client cert — exactly what `URLSession.shared` would have done. Without the
+/// host scoping, pinning would reject every external origin's cert (its fingerprint never matches
+/// the host's) and the client identity would leak to servers that didn't ask for it.
 final class LibraryTLSDelegate: NSObject, URLSessionDelegate {
     private let identity: SecIdentity
     private let pinnedHostFingerprint: Data? // SHA-256 of the host cert DER; nil = accept any (TOFU)
+    private let host: String
+    private let port: Int
 
-    init(identity: SecIdentity, pinnedHostFingerprint: Data?) {
+    init(identity: SecIdentity, pinnedHostFingerprint: Data?, host: String, port: UInt16) {
         self.identity = identity
         self.pinnedHostFingerprint = pinnedHostFingerprint
+        self.host = host
+        self.port = Int(port)
     }
 
     func urlSession(
@@ -112,11 +160,16 @@ final class LibraryTLSDelegate: NSObject, URLSessionDelegate {
         didReceive challenge: URLAuthenticationChallenge,
         completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void
     ) {
-        switch challenge.protectionSpace.authenticationMethod {
+        let space = challenge.protectionSpace
+        guard space.host == host, space.port == port else {
+            completionHandler(.performDefaultHandling, nil)
+            return
+        }
+        switch space.authenticationMethod {
         case NSURLAuthenticationMethodServerTrust:
             // Pin the host cert by fingerprint — the host is self-signed (the client trusts it the
             // same way the QUIC session does). No pin yet (TOFU) → accept the presented leaf.
-            guard let trust = challenge.protectionSpace.serverTrust,
+            guard let trust = space.serverTrust,
                   let leaf = (SecTrustCopyCertificateChain(trust) as? [SecCertificate])?.first
             else {
                 completionHandler(.cancelAuthenticationChallenge, nil)

clients/apple/Sources/PunktfunkKit/Connection/InputEvents.swift

@@ -0,0 +1,87 @@
+// Convenience constructors for the wire input events (field semantics match
+// punktfunk_core::input::InputEvent; see punktfunk_core.h).
+
+import Foundation
+import PunktfunkCore
+
+public extension PunktfunkInputEvent {
+    private static func make(
+        _ kind: UInt32, code: UInt32, x: Int32, y: Int32, flags: UInt32 = 0
+    ) -> PunktfunkInputEvent {
+        PunktfunkInputEvent(kind: UInt8(kind), _pad: (0, 0, 0), code: code, x: x, y: y, flags: flags)
+    }
+    static func mouseMove(dx: Int32, dy: Int32) -> PunktfunkInputEvent {
+        make(PUNKTFUNK_INPUT_KIND_MOUSE_MOVE.rawValue, code: 0, x: dx, y: dy)
+    }
+    /// Absolute cursor position in client-surface pixels — the host places its cursor
+    /// there (same letterbox mapping and `flags` surface-dims packing as the touch events).
+    /// Used by the iPad pointer fallback when the scene can't pointer-lock and GCMouse's
+    /// relative deltas aren't available; the surface dimensions must each fit in 16 bits.
+    static func mouseMoveAbs(
+        x: Int32, y: Int32, surfaceWidth: UInt32, surfaceHeight: UInt32
+    ) -> PunktfunkInputEvent {
+        make(
+            PUNKTFUNK_INPUT_KIND_MOUSE_MOVE_ABS.rawValue, code: 0, x: x, y: y,
+            flags: ((surfaceWidth & 0xFFFF) << 16) | (surfaceHeight & 0xFFFF))
+    }
+    /// GameStream button ids: 1=left 2=middle 3=right 4=X1 5=X2 (host maps to evdev BTN_*).
+    static func mouseButton(_ button: UInt32, down: Bool) -> PunktfunkInputEvent {
+        make(
+            (down ? PUNKTFUNK_INPUT_KIND_MOUSE_BUTTON_DOWN : PUNKTFUNK_INPUT_KIND_MOUSE_BUTTON_UP).rawValue,
+            code: button, x: 0, y: 0)
+    }
+    /// `vk` is a Windows virtual-key code (the host's vk_to_evdev table consumes these).
+    static func key(_ vk: UInt32, down: Bool) -> PunktfunkInputEvent {
+        make((down ? PUNKTFUNK_INPUT_KIND_KEY_DOWN : PUNKTFUNK_INPUT_KIND_KEY_UP).rawValue, code: vk, x: 0, y: 0)
+    }
+    /// WHEEL_DELTA(120)-scaled; positive = up (vertical) / right (horizontal) — the
+    /// convention Moonlight/SDL use; the host maps onto the ei/wl axes.
+    static func scroll(_ delta: Int32, horizontal: Bool = false) -> PunktfunkInputEvent {
+        make(PUNKTFUNK_INPUT_KIND_MOUSE_SCROLL.rawValue, code: horizontal ? 1 : 0, x: delta, y: 0)
+    }
+
+    // Gamepad (wire contract in punktfunk_core::input::gamepad): one transition per event,
+    // `pad` = controller index, accumulated host-side into a virtual Xbox 360 or DualSense
+    // pad (the session's negotiated `GamepadType`).
+
+    /// `button` is a GameStream buttonFlags bit (A=0x1000 B=0x2000 X=0x4000 Y=0x8000,
+    /// dpad=0x1/2/4/8, start=0x10 back=0x20 LS=0x40 RS=0x80 LB=0x100 RB=0x200 guide=0x400,
+    /// touchpad click=0x100000 — DualSense sessions only, the xpad has no such button).
+    static func gamepadButton(_ button: UInt32, down: Bool, pad: UInt32 = 0) -> PunktfunkInputEvent {
+        make(
+            PUNKTFUNK_INPUT_KIND_GAMEPAD_BUTTON.rawValue,
+            code: button, x: down ? 1 : 0, y: 0, flags: pad)
+    }
+
+    /// Axis ids: 0=LSX 1=LSY 2=RSX 3=RSY (−32768...32767, XInput convention: +y = UP —
+    /// `GCControllerDirectionPad.yAxis` already matches, no flip), 4=LT 5=RT (0...255).
+    static func gamepadAxis(_ axis: UInt32, value: Int32, pad: UInt32 = 0) -> PunktfunkInputEvent {
+        make(PUNKTFUNK_INPUT_KIND_GAMEPAD_AXIS.rawValue, code: axis, x: value, y: 0, flags: pad)
+    }
+
+    // Touch (host-side: libei ei_touchscreen on the virtual output). `id` distinguishes
+    // fingers and is reusable after touchUp; coordinates are absolute pixels on the
+    // client's touch surface, whose size rides in `flags` so the host can rescale —
+    // the surface dimensions must each fit in 16 bits. Built for the iOS variant
+    // (UITouch → these); nothing on macOS emits them yet.
+
+    static func touchDown(
+        id: UInt32, x: Int32, y: Int32, surfaceWidth: UInt32, surfaceHeight: UInt32
+    ) -> PunktfunkInputEvent {
+        make(
+            PUNKTFUNK_INPUT_KIND_TOUCH_DOWN.rawValue, code: id, x: x, y: y,
+            flags: ((surfaceWidth & 0xFFFF) << 16) | (surfaceHeight & 0xFFFF))
+    }
+
+    static func touchMove(
+        id: UInt32, x: Int32, y: Int32, surfaceWidth: UInt32, surfaceHeight: UInt32
+    ) -> PunktfunkInputEvent {
+        make(
+            PUNKTFUNK_INPUT_KIND_TOUCH_MOVE.rawValue, code: id, x: x, y: y,
+            flags: ((surfaceWidth & 0xFFFF) << 16) | (surfaceHeight & 0xFFFF))
+    }
+
+    static func touchUp(id: UInt32) -> PunktfunkInputEvent {
+        make(PUNKTFUNK_INPUT_KIND_TOUCH_UP.rawValue, code: id, x: 0, y: 0)
+    }
+}

clients/apple/Sources/PunktfunkKit/Connection/LibraryClient.swift

@@ -3,10 +3,11 @@
 // /library page renders. Read-only on the client for now; launching a chosen title is a later
 // step. Gated behind `DefaultsKey.libraryEnabled` in the UI.
 //
-// The management API is HTTP on a port distinct from the punktfunk/1 data plane (default 47990),
-// binds loopback unless started with a token, and REQUIRES a bearer token for any non-loopback
-// bind. So to browse a host's library remotely the host must expose the mgmt API on the LAN with
-// `--mgmt-token`; the client carries that token per host. This mirrors the GameEntry/Artwork/
+// The management API serves HTTPS on a port distinct from the punktfunk/1 data plane (default
+// 47990, also advertised in the host's mDNS `mgmt` TXT). A paired client is authorized for the
+// read-only library route by its **mTLS certificate** — no bearer token. The host binds this read
+// surface to the LAN by DEFAULT (the bearer-gated admin surface stays loopback-only), so a paired
+// client browses a host's library with no operator step. This mirrors the GameEntry/Artwork/
 // LaunchSpec schema in `crates/punktfunk-host/src/library.rs`.
 
 import Foundation
@@ -56,8 +57,9 @@ public enum LibraryError: LocalizedError {
         case .http(let code):
             return "The management API returned HTTP \(code)."
         case .unreachable(let why):
-            return "Couldn't reach the host's management API: \(why). The host must expose it on "
-                + "the LAN (serve --mgmt-bind 0.0.0.0)."
+            return "Couldn't reach the host's management API: \(why). It binds the LAN by default, "
+                + "so check the host is updated and reachable (a host pinned to "
+                + "`--mgmt-bind 127.0.0.1` is loopback-only and can't be browsed remotely)."
         }
     }
 }
@@ -90,7 +92,8 @@ public enum LibraryClient {
             throw LibraryError.unreachable(
                 (error as? LocalizedError)?.errorDescription ?? error.localizedDescription)
         }
-        let delegate = LibraryTLSDelegate(identity: identity, pinnedHostFingerprint: hostFingerprint)
+        let delegate = LibraryTLSDelegate(
+            identity: identity, pinnedHostFingerprint: hostFingerprint, host: address, port: port)
         let session = URLSession(configuration: .ephemeral, delegate: delegate, delegateQueue: nil)
         defer { session.finishTasksAndInvalidate() }
 
@@ -106,7 +109,16 @@ public enum LibraryClient {
         }
         switch http.statusCode {
         case 200:
-            return try JSONDecoder().decode([GameEntry].self, from: data)
+            var games = try JSONDecoder().decode([GameEntry].self, from: data)
+            // Steam art now comes back as host-relative proxy paths (`/api/v1/library/art/...`,
+            // see the host's `library::steam_art`) so they work the same regardless of which
+            // interface/port the client reached the host on. Resolve them against THIS host now,
+            // so every other consumer just sees ordinary absolute URLs.
+            let base = url
+            for i in games.indices {
+                games[i].art = games[i].art.resolved(against: base)
+            }
+            return games
         case 401:
             throw LibraryError.unauthorized
         default:
@@ -114,3 +126,43 @@ public enum LibraryClient {
         }
     }
 }
+
+extension Artwork {
+    /// Rewrite any host-relative field (one starting with `/`) into an absolute URL against `base`.
+    /// External CDN URLs (GOG/Heroic/Xbox) and `data:` URLs (Lutris) already don't start with `/`,
+    /// so they pass through unchanged. `internal` (not `fileprivate`) so `LibraryClientTests` can
+    /// exercise it directly without a live host.
+    func resolved(against base: URL) -> Artwork {
+        func abs(_ s: String?) -> String? {
+            guard let s, s.hasPrefix("/") else { return s }
+            return URL(string: s, relativeTo: base)?.absoluteString ?? s
+        }
+        var a = self
+        a.portrait = abs(a.portrait)
+        a.hero = abs(a.hero)
+        a.logo = abs(a.logo)
+        a.header = abs(a.header)
+        return a
+    }
+}
+
+/// Builds the authenticated `URLSession` the library UI uses to fetch cover-art images — the same
+/// paired identity + host pinning as [`LibraryClient.fetch`], reused across a whole grid's worth of
+/// poster loads (this session is NOT one-shot: callers own its lifetime and should invalidate it
+/// when the view goes away). Safe to use for every candidate URL a `GameEntry`'s `Artwork` carries:
+/// `LibraryTLSDelegate` only pins/presents-cert for the host itself, deferring to normal system
+/// trust + no client cert for any other origin (an external CDN URL).
+public enum LibraryImageLoader {
+    public static func session(
+        address: String,
+        port: UInt16 = punktfunkDefaultMgmtPort,
+        certPEM: String,
+        keyPEM: String,
+        hostFingerprint: Data?
+    ) throws -> URLSession {
+        let identity = try ClientTLS.makeIdentity(certPEM: certPEM, keyPEM: keyPEM)
+        let delegate = LibraryTLSDelegate(
+            identity: identity, pinnedHostFingerprint: hostFingerprint, host: address, port: port)
+        return URLSession(configuration: .default, delegate: delegate, delegateQueue: nil)
+    }
+}