feat: add nixosConfigurationPath variable

modules/features/meta.nix

@@ -20,7 +20,7 @@ let
   );
 
   userType = lib.types.submodule (
-    { ... }:
+    { config, ... }:
     {
       options = {
         name = lib.mkOption {
@@ -35,6 +35,11 @@ let
           type = lib.types.str;
         };
 
+        nixosConfigurationPath = lib.mkOption {
+          type = lib.types.str;
+          default = "${config.homeDirectory}/.config/nixos";
+        };
+
         emails = lib.mkOption {
           type = lib.types.attrsOf emailType;
         };

modules/features/nix.nix

@@ -1,6 +1,12 @@
 {
   flake.modules.nixos.nix =
-    { inputs, ... }:
+    {
+      config,
+      inputs,
+      lib,
+      pkgs,
+      ...
+    }:
     {
       nixpkgs.config.allowUnfree = true;