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punktfunk/scripts/punktfunk-host.service
T
enricobuehlerandClaude Fable 5 6617275387
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docs(env): stop teaching the compositor pin + uid-1000 anchors in starters
Field triage (Nobara, Discord): the kde.md starter host.env told desktop
users to set PUNKTFUNK_COMPOSITOR=kwin, which PINS the backend — detect()
short-circuits and the capture-loss rebuild never re-detects — so a
mid-stream switch to Game Mode killed the stream instead of following it.
A follow-up hardcoded XDG_RUNTIME_DIR=/run/user/1000 anchor broke PipeWire
for any non-1000 uid (pw audio connect: Creation failed).

Revamp across every starter/example/reference:
- Desktop starters (kde/gnome/hyprland/sway) shrink to
  PUNKTFUNK_VIDEO_SOURCE=virtual + an explicit warning that pinning
  disables session-following; forcing a backend is CI/appliance-only.
- host.env.example: rewritten around auto-detection; anchors demoted to a
  commented ssh/cron-only block with the uid trap spelled out; the
  gamescope ATTACH/MANAGED knobs documented (previously missing);
  case-sensitivity called out.
- packaging/bazzite/host.env + README: drop the uid-1000 anchors (a
  systemctl --user service inherits/derives them); README's stale
  PUNKTFUNK_COMPOSITOR=gamescope-era template synced to the real one.
- packaging/kde/host.env: loud APPLIANCE-ONLY header (it pins on purpose).
- configuration.md: session-anchors section inverted to "leave unset",
  compositor row states the pin consequence, case-sensitivity note.
- troubleshooting.md: new "session fails right after editing host.env"
  section (case, wrong-uid anchors, stale pin, restart-to-apply).
- gamescope.md/bazzite.md: attach/managed descriptions match current
  behavior (managed is the infra-detected default; attach re-modes a
  box-owned session to the client's resolution).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-23 22:42:59 +02:00

43 lines
2.6 KiB
Desktop File

# punktfunk streaming host — systemd USER unit (`serve --gamestream` = native punktfunk/1 + the
# GameStream/Moonlight-compat planes). For a SECURE native-only host (no plain-HTTP pairing / legacy
# GCM nonce reuse — security-review #5/#9; native clients only), drop `--gamestream` from ExecStart.
#
# Install (against an already-running compositor session — the host auto-detects and follows it,
# so host.env needs no backend config):
# mkdir -p ~/.config/systemd/user && cp scripts/punktfunk-host.service ~/.config/systemd/user/
# cp scripts/host.env.example ~/.config/punktfunk/host.env # defaults are right for a desktop
# systemctl --user daemon-reload && systemctl --user enable --now punktfunk-host
#
# Self-contained boot appliance (no login, no manual steps after boot). These routes PIN the
# backend via PUNKTFUNK_COMPOSITOR — correct for a dedicated single-session box, but it turns off
# live-session auto-detection, so never do it on a desktop that switches sessions (Game Mode etc.):
# - kwin backend (stream the Plasma desktop): also install + enable
# punktfunk-kde-session.service (it brings up the headless KWin session this After=s), and use
# the shipped packaging/kde/host.env (pins kwin + WAYLAND_DISPLAY=wayland-kde on purpose).
# - gamescope backend (stream a nested app, no desktop): set PUNKTFUNK_COMPOSITOR=gamescope in
# host.env — the host spawns gamescope per session, so no kde-session unit is needed.
# Then `sudo loginctl enable-linger "$USER"` so user units start at boot, and reboot.
#
# The host LISTENS as soon as it starts and only touches the compositor per session (on a client
# connect), so the After= below is a soft ordering, not a hard readiness gate — the kde-session
# unit (when present) just needs to be up by the time a client streams (seconds later, user-driven).
# A missing After= unit (e.g. gamescope backend, no kde-session installed) is simply ignored.
[Unit]
Description=punktfunk GameStream + punktfunk/1 host
After=pipewire.service punktfunk-kde-session.service
# PartOf the kwin session (when present): the host's libei input uses the RemoteDesktop portal,
# whose D-Bus connection goes stale if the compositor session restarts the portal under it — the
# in-process reopen loop can't recover that, but a full restart re-establishes it. So restart the
# host whenever the kde-session restarts. Ignored when punktfunk-kde-session isn't installed
# (gamescope / other backends).
PartOf=punktfunk-kde-session.service
[Service]
EnvironmentFile=%h/.config/punktfunk/host.env
ExecStart=%h/punktfunk/target/release/punktfunk-host serve --gamestream
Restart=on-failure
RestartSec=2
[Install]
WantedBy=default.target