Add home-manager

modules/home-manager/base.nix

@@ -0,0 +1,14 @@
+{ config, ... }:
+
+{
+  flake.modules.homeManager.base = args: {
+    home = {
+      homeDirectory = "/home/${config.flake.meta.owner.username}";
+      username = config.flake.meta.owner.username;
+    };
+
+    programs.home-manager.enable = true;
+
+    systemd.user.startServices = "sd-switch";
+  };
+}

modules/home-manager/nixos.nix

@@ -0,0 +1,28 @@
+{ config, inputs, ... }:
+
+{
+  flake.modules.nixos.pc = {
+    imports = [ inputs.home-manager.nixosModules.home-manager ];
+
+    home-manager = {
+      useGlobalPkgs = true;
+      extraSpecialArgs.hasGlobalPkgs = true;
+
+      # https://github.com/nix-community/home-manager/issues/6770
+      # useUserPackages = true;
+
+      users.${config.flake.meta.owner.username}.imports = [
+        (
+          { osConfig, ... }:
+
+          {
+            home.stateVersion = osConfig.system.stateVersion;
+          }
+        )
+
+        config.flake.modules.homeManager.base
+        # config.flake.modules.homeManager.gui
+      ];
+    };
+  };
+}