android_cast/examples/sfu/README.md

SFU relay (Janus-class) — hidden preview

Not in alpha. Implementation branch: feature/sfu-relay. User-visible UI remains off until owner spec is merged.

Layout

Path	Role
examples/sfu/README.md	This file
backend/public/api/sfu_health.php	Health stub (enabled: false)
config.example.php → sfu	BE feature gate
app/.../sfu/SfuRelayGate.java	Compile-time preview gate

Next steps (when spec lands)

1. Signaling API + room lifecycle tied to cast session IDs / RBAC.
2. Janus or mediasoup on dedicated port (see INFRA — not androidcast :80 vhost).
3. Android: enable TRANSPORT_WEBRTC behind SfuRelayGate + dev setting only.
4. FE nginx: UDP/TCP ports + TLS for WebRTC (separate from hub/crashes).

See 20260608_BE_SERVICES_and_infra.md § Planned SFU.