From ece49a035a50143912aee5c15c9bc4ae0c2814a0 Mon Sep 17 00:00:00 2001
From: Anton Afanasyeu <a.afanasieff@gmail.com>
Date: Tue, 23 Jun 2026 12:31:19 +0200
Subject: [PATCH] initial

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 examples/sfu/README.md | 21 +++++++++++++++++++++
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 create mode 100644 examples/sfu/README.md

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+# ac-ms-sfu-signaling
+
+Future F1. Remote: `git://f0xx.org/ac/ac-ms-sfu-signaling`
diff --git a/examples/sfu/README.md b/examples/sfu/README.md
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+# 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](../../docs/20260608_BE_SERVICES_and_infra.md) § Planned SFU.