Added Livekit

nixos/roles/livekit.nix

@@ -0,0 +1,45 @@
+{ pkgs, ... }:
+
+let
+  keyFile = "/run/livekit/livekit.key";
+  domain = "cyperpunk.de";
+  synapseUrl = "http://100.109.179.25:8008"; # Tailscale IP of cyper-controller
+in
+{
+  services.livekit = {
+    enable = true;
+    openFirewall = true;
+    inherit keyFile;
+    settings.room.auto_create = false;
+  };
+
+  services.lk-jwt-service = {
+    enable = true;
+    livekitUrl = "wss://${domain}/livekit/sfu";
+    inherit keyFile;
+  };
+
+  systemd.services.livekit-key = {
+    before = [
+      "lk-jwt-service.service"
+      "livekit.service"
+    ];
+    wantedBy = [ "multi-user.target" ];
+    path = with pkgs; [
+      livekit
+      coreutils
+      gawk
+    ];
+    script = ''
+      mkdir -p /run/livekit
+      echo "lk-jwt-service: $(livekit-server generate-keys | tail -1 | awk '{print $3}')" > "${keyFile}"
+    '';
+    serviceConfig.Type = "oneshot";
+    unitConfig.ConditionPathExists = "!${keyFile}";
+  };
+
+  systemd.services.lk-jwt-service.environment = {
+    LIVEKIT_FULL_ACCESS_HOMESERVERS = domain;
+    MATRIX_BASE_URL = synapseUrl; # tells lk-jwt-service where to validate tokens
+  };
+}

nixos/roles/matrix/clients.nix

@@ -122,6 +122,13 @@ let
           server_name = "cyperpunk.de";
         };
       };
+      jitsi = {
+        preferred_domain = "jitsi.cyperpunk.de";
+      };
+      element_call = {
+        url = "https://cyperpunk.de/livekit/jwt";
+        use_exclusively = true;
+      };
       setting_defaults = {
         custom_themes = catppuccinThemes;
         feature_custom_themes = true;

nixos/roles/matrix/synapse.nix

@@ -32,6 +32,7 @@
         macaroon_secret_key = "$__file{${config.sops.secrets.matrix_macaroon_secret.path}}";
         experimental_features = {
           "msc3266_enabled" = true;
+          "msc3779_enabled" = true;
         };
         listeners = [
           {

nixos/roles/nginx.nix

@@ -34,7 +34,7 @@ let
       extraConfig = ''
         default_type application/json;
         add_header Access-Control-Allow-Origin *;
-        return 200 '{"m.homeserver":{"base_url":"https://matrix.cyperpunk.de"}}';
+        return 200 '{"m.homeserver":{"base_url":"https://matrix.cyperpunk.de"},"org.matrix.msc4143.rtc_foci":[{"type":"livekit","livekit_service_url":"https://cyperpunk.de/livekit/jwt"}]}';
       '';
     };
     "/.well-known/matrix/server" = {
@@ -102,6 +102,15 @@ in
             proxyPass = "http://${upstream}:8008";
             proxyWebsockets = true;
           };
+          "^~ /livekit/jwt/" = {
+            priority = 400;
+            proxyPass = "http://127.0.0.1:8080";
+          };
+          "^~ /livekit/sfu" = {
+            priority = 400;
+            proxyPass = "http://127.0.0.1:7880";
+            proxyWebsockets = true;
+          };
         };
       };
     };