Modify Element config for modern WebRTC

modules/hosts/crow/configuration.nix

@@ -37,15 +37,39 @@
       lutris
       steam
       easyeffects
+      openssl
+      jq
 
-      # Wrap Element so it knows where gnome-libsecret it
-      (symlinkJoin {
+      # Wrap Element so it knows where gnome-libsecret is
+      # Additionally, override the config to disable legacy call protocol
+      (let
+        elementConfig = pkgs.writeText "element-config.json" (builtins.toJSON {
+          default_server_config = {
+            "m.homeserver" = {
+              base_url = "https://starling.mynest.love";
+              server_name = "starling.mynest.love";
+            };
+          };
+          features = {
+            "feature_group_calls" = true;
+            "feature_video_rooms" = false;
+            "feature_element_call_video_rooms" = false;
+          };
+          element_call = {
+            url = null;
+            use_exclusively = true;
+          };
+	  jitsi = {
+            preferred_domain = null;
+	  };
+        });
+      in symlinkJoin {
         name = "element-desktop";
         paths = [ element-desktop ];
         nativeBuildInputs = [ makeWrapper ];
         postBuild = ''
           wrapProgram $out/bin/element-desktop \
-            --add-flags "--password-store=gnome-libsecret"
+            --add-flags "--password-store=gnome-libsecret --config-path ${elementConfig}"
         '';
       })
     ];