build a brandnew architecture for configurations.

nixos/modules/default.nix

@@ -14,6 +14,7 @@
     ])
     ++ [
       ./nix.nix
+      ./home.nix
     ];
 
   config = {

nixos/modules/home.nix

@@ -0,0 +1,64 @@
+{
+  inputs,
+  outputs,
+  lib,
+  config,
+  pkgs,
+  rootPath,
+  ...
+}:
+{
+  options.youthlic.home-manager = {
+    enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      example = true;
+      description = ''
+        whether enable home-manager or not
+      '';
+    };
+    unixName = lib.mkOption {
+      type = lib.types.str;
+      default = "david";
+      example = "youthlic";
+      description = ''
+        unix name of home-manager user
+      '';
+    };
+    hostName = lib.mkOption {
+      type = lib.types.str;
+      example = "Tytonidae";
+      description = ''
+        host name of home-manager user
+      '';
+    };
+  };
+  config =
+    let
+      cfg = config.youthlic.home-manager;
+      unixName = cfg.unixName;
+      hostName = cfg.hostName;
+    in
+    lib.mkIf cfg.enable {
+      home-manager = {
+        useGlobalPkgs = true;
+        useUserPackages = true;
+        users."${cfg.unixName}" = (
+          { ... }:
+          {
+            imports = [
+              (rootPath + "/home/${unixName}/modules")
+              (rootPath + "/home/${unixName}/configurations/${hostName}")
+            ];
+          }
+        );
+        extraSpecialArgs = {
+          inherit outputs inputs;
+          inherit (cfg) unixName hostName;
+          inherit (pkgs) system;
+        };
+        backupFileExtension = "backup";
+        sharedModules = [ outputs.homeManagerModules.default ];
+      };
+    };
+}