devx: Enable msc4143 on other homeserver (remove well-known)

backend/dev_homeserver-othersite.yaml

@@ -40,6 +40,8 @@ experimental_features:
   msc4222_enabled: true
   # sticky events for MatrixRTC user state
   msc4354_enabled: true
+  # MSC4143: RTC Transport end point
+  msc4143_enabled: true
 
 # The maximum allowed duration by which sent events can be delayed, as
 # per MSC4140. Must be a positive value if set.  Defaults to no
@@ -64,3 +66,8 @@ rc_message:
   # Currently the heart-beat is every 5 seconds which translates into a rate of 0.2s
   per_second: 0.5
   burst_count: 30
+
+matrix_rtc:
+  transports:
+    - type: livekit
+      livekit_service_url: https://matrix-rtc.othersite.m.localhost/livekit/jwt