add a modulesPath arg in modules evaluation

default.nix

@@ -21,7 +21,12 @@ let
 
   eval = pkgs.lib.evalModules {
     modules = [
-      { _module.args = { inherit pkgs; inherit (pkgs) lim; }; }
+      {
+        _module.args = {
+          inherit pkgs;
+          inherit (pkgs) lim;
+        };
+      }
       ./modules/hardware.nix
       ./modules/base.nix
       ./modules/busybox.nix
@@ -35,6 +40,9 @@ let
         boot.imageType = imageType;
       }
     ];
+    specialArgs = {
+      modulesPath = builtins.toString ./modules;
+    };
   };
   config = eval.config;