steam: Enable Gamescope session for seamless IHS

common/steam.nix

@@ -3,13 +3,12 @@
 {
   config = lib.mkIf config.programs.steam.enable {
     programs.steam = {
-      package = pkgs.steam.override {
-        extraArgs = "-pipewire"; # for remote play with PipeWire
-      };
-
       remotePlay.openFirewall = true;
       dedicatedServer.openFirewall = true;
       localNetworkGameTransfers.openFirewall = true;
+      gamescopeSession.enable = true;
+      extest.enable = true;
+      protontricks.enable = true;
     };
 
     services.joycond.enable = true;

services/owncast.nix

@@ -22,7 +22,10 @@ in
         ${cfg.domain} = {
           forceSSL = true;
           enableACME = true;
-          locations."/".proxyPass = "http://127.0.0.1:32769/";
+          locations."/" = {
+            proxyPass = "http://127.0.0.1:32769/";
+            proxyWebsockets = true;
+          };
         };
       };
     };