make checks build needed software

lib/checks.nix

@@ -1,6 +1,15 @@
-{ inputs, pkgs }:
+{ inputs, system }:
+let
+  pkgs = import inputs.nixpkgs {
+    inherit system;
+    overlays = [
+      inputs.lix-module.overlays.default
+      inputs.hyprland-contrib.overlays.default
+      inputs.nixpkgs-wayland.overlay
+    ];
+  };
+in
 {
-
   makePackages =
     pkgs.runCommandLocal "build-third-party"
       {
@@ -8,6 +17,8 @@
         nativeBuildInputs = [
           pkgs.pixi
           pkgs.swww
+          pkgs.xdg-desktop-portal-hyprland
+          pkgs.nixVersions.stable
 
           inputs.tsm.packages.${pkgs.system}.default
           inputs.hyprman.packages.${pkgs.system}.default

lib/default.nix

@@ -34,7 +34,6 @@ let
         ../overlays
         inputs.lix-module.nixosModules.default
       ] ++ filter isNixFile (listFilesRecursive (../. + "/hosts/${hostName}"));
-
       specialArgs = {
         inherit
           inputs
@@ -68,7 +67,13 @@ in
         ];
       };
     });
-    checks = forAllSystems (pkgs: import ./checks.nix { inherit pkgs inputs; });
+    checks = forAllSystems (
+      pkgs:
+      import ./checks.nix {
+        inherit inputs;
+        system = pkgs.system;
+      }
+    );
     formatter = forAllSystems (pkgs: pkgs.nixfmt-rfc-style);
 
   };