Third de-coupling for the host crate carve (plan §W6.1 leaf). HostConfig + the config()
OnceLock (config.rs, pure std, zero deps) move to a new pf-host-config leaf so every
subsystem crate (pf-encode/pf-capture/pf-vdisplay/pf-gpu) can read process config WITHOUT
depending on the orchestrator. 34 crate::config::config() call sites across 19 files
repoint to pf_host_config::config(). thread_qos stays in the host for now (it calls
session_tuning::on_hot_thread — its own leaf-ification rides the encode carve).
Granular-crate decision (supersedes the plan's single pf-media): split capture/encode/
vdisplay into separate crates rather than one broad crate — the capture↔encode cycle is
broken by a shared frame-types leaf, and vdisplay→encode (can_open_another_session) is a
legal one-way edge since encode never references vdisplay.
Verified: Linux (home-worker-5) clippy -p pf-host-config -p punktfunk-host --all-targets
-D warnings; Windows (192.168.1.158) clippy --features nvenc,amf-qsv --all-targets green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Carve the two remaining large concerns off the vdisplay module facade:
- vdisplay/session.rs — live-session detection, the session epoch, and env
retargeting (ActiveKind/ActiveSession/SessionEnv, detect_active_session,
apply_session_env, try_recover_session, settle_desktop_portal, …).
- vdisplay/routing.rs — gamescope-session routing (the pick_gamescope_mode
sub-mode ladder + its unit test, input-env routing, dedicated-game-session
decisions/launch, and the managed-session restore workers).
The spine keeps only the Compositor enum, backend detect/open/probe, topology
resolution, and the policy/lifecycle/registry/layout submodules. Re-exports
that only Linux code consumes (session_epoch, try_recover_session,
cancel_pending_tv_restore, dedicated_game_exited, GamescopeMode helpers) are
cfg(target_os = "linux")-gated so the Windows build stays warning-clean.
Pure move; no behavior change. Linux clippy+tests and Windows host clippy
(nvenc,amf-qsv) both green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
enricobuehler