Move pipewire custom settings to /etc/pipewire

modules/audio.nix

@@ -38,17 +38,19 @@ in {
     };
     pulse.enable = true;
     wireplumber.enable = true;
-    config.pipewire-pulse = let
-      defaultConf = lib.importJSON
-        "${inputs.nixpkgs}/nixos/modules/services/desktops/pipewire/daemon/pipewire-pulse.conf.json";
-    in lib.recursiveUpdate defaultConf {
-      "pulse.properties" = {
-        "server.address" = [ "unix:native" "tcp:127.0.0.1:4713" ];
-      };
-    };
   };
   security.rtkit.enable = true;
 
+  # Enable pipewire-pulse's audio via TCP
+  environment.etc."pipewire/pipewire-pulse.conf.d/pulse-server.conf".text = ''
+    pulse.properties: {
+      server.address: [
+        unix:native,
+        tcp:127.0.0.1:4713
+      ]
+    }
+  '';
+
   # Set up Mopidy
   services.mopidy = {
     enable = true;