restructure user management

modules/users/ronja.nix

@@ -0,0 +1,25 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}: let
+  isUserEnabled = builtins.elem "ronja" config.my.enabledUsers;
+in {
+  config = lib.mkMerge [
+    (lib.mkIf isUserEnabled {
+      # Define user account
+      users.users.ronja = {
+        isNormalUser = true;
+        name = "ronja";
+        description = "Ronja Spiegelberg";
+        home = "/home/ronja";
+        extraGroups = ["networkmanager" "wheel" "games"];
+        shell = pkgs.zsh;
+      };
+    })
+    (lib.mkIf (isUserEnabled && config.my.modulesCfg.enableHomeManager) {
+      home-manager.users.ronja = import ./ronja-home.nix;
+    })
+  ];
+}