fix: monitor

modules/applications/niri/system.nix

@@ -1,4 +1,5 @@
 {
+  pkgs,
   lib,
   config,
   ...
@@ -13,5 +14,10 @@ in
 
   config = lib.mkIf cfg.enable {
     programs.niri.enable = true;
+
+    environment.systemPackages = with pkgs; [
+      wdisplays # Wayland display configuration GUI
+      wlr-randr # Wayland output management CLI
+    ];
   };
 }