Add minimal modular setup

utils.nix

@@ -0,0 +1,19 @@
+{ pkgs, inputs, system, ... }: {
+      mkHost = host: inputs.nixpkgs.lib.nixosSystem {
+        specialArgs = { inherit inputs system pkgs; };
+
+        modules = [
+          host
+          ./modules/nixos
+        ];
+      };
+
+      mkHome = host: inputs.home-manager.lib.homeMangerConfiguration {
+        inherit pkgs;
+
+        modules = [
+          host
+          ./modules/home
+        ];
+      };
+}