media1: use UWSM for Hyprland session management

Matches the working pattern from gunter — UWSM properly sets up dbus
and systemd targets, which is needed for PipeWire and xdg-desktop-portal.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

hosts/media1/media-desktop.nix

@@ -11,7 +11,7 @@ let
     p.inputstream-adaptive
   ]);
 
-  hyprlandConfig = pkgs.writeText "hyprland.conf" ''
+  hyprlandConfig = ''
     # Monitor — auto-detect, native resolution
     monitor = , preferred, auto, 1
 
@@ -54,31 +54,37 @@ let
       disable_splash_rendering = true
     }
   '';
-
-  launchHyprland = pkgs.writeShellApplication {
-    name = "launch-hyprland";
-    runtimeInputs = [ pkgs.hyprland ];
-    text = ''
-      export XDG_SESSION_TYPE=wayland
-      exec Hyprland --config ${hyprlandConfig}
-    '';
-  };
 in
 {
-  # Hyprland compositor
-  programs.hyprland.enable = true;
+  # Hyprland compositor with UWSM for proper dbus/systemd session management
+  programs.hyprland = {
+    enable = true;
+    withUWSM = true;
+    portalPackage = pkgs.xdg-desktop-portal-hyprland;
+  };
 
-  # greetd for auto-login into Hyprland
+  # greetd for auto-login — UWSM starts Hyprland as a systemd session
   services.greetd = {
     enable = true;
     settings = {
       default_session = {
-        command = lib.getExe launchHyprland;
+        command = "uwsm start hyprland-uwsm.desktop";
         user = "kodi";
       };
     };
   };
 
+  # Deploy Hyprland config to kodi user's XDG config dir
+  systemd.tmpfiles.rules = [
+    "d /home/kodi/.config/hypr 0755 kodi kodi -"
+  ];
+  environment.etc."skel/hypr/hyprland.conf".text = hyprlandConfig;
+  system.activationScripts.hyprlandConfig = lib.stringAfter [ "users" ] ''
+    install -D -o kodi -g kodi -m 0644 /dev/stdin /home/kodi/.config/hypr/hyprland.conf <<'HYPRCONF'
+    ${hyprlandConfig}
+    HYPRCONF
+  '';
+
   # Kodi user
   users.users.kodi = {
     isNormalUser = true;