users: fix eval on darwin

modules/base/users/default.nix

···
     ./isabel.nix
     ./mkuser.nix
     ./options.nix
-    ./robin.nix
-    ./root.nix
     # keep-sorted end
   ];
-
-  config = {
-    # disable the ability to modify users outside of the nixos configuration
-    users.mutableUsers = false;
-  };
 }

modules/base/users/isabel.nix

···
 {
   config = mkIf (elem "isabel" config.garden.system.users) {
     users.users.isabel = {
-      hashedPassword = "$y$j9T$vCF2V4znV5q3n6PxO5i6z/$T9Xw1s0PEvJys.29suA3Gbwv9XvJo98cZVhULWk0MtC";
-
       openssh.authorizedKeys.keys = [
         "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMQDiHbMSinj8twL9cTgPOfI6OMexrTZyHX27T8gnMj2"
       ];

modules/base/users/root.nix

···
-{
-  lib,
-  _class,
-  config,
-  ...
-}:
-{
-  users.users.root = lib.mkIf (_class == "nixos") {
-    inherit (config.users.users.${config.garden.system.mainUser}) hashedPassword;
-  };
-}

modules/nixos/default.nix

···
     ./services
     ./system
     ./tags.nix
+    ./users
     # keep-sorted end
   ];
 }

modules/nixos/users/default.nix

···
+{
+  imports = [
+    # keep-sorted start
+    ./isabel.nix
+    ./robin.nix
+    ./root.nix
+    # keep-sorted end
+  ];
+
+  config = {
+    # disable the ability to modify users outside of the nixos configuration
+    users.mutableUsers = false;
+  };
+}

modules/nixos/users/isabel.nix

···
+{
+  lib,
+  config,
+  ...
+}:
+let
+  inherit (lib) elem mkIf;
+in
+{
+  config = mkIf (elem "isabel" config.garden.system.users) {
+    users.users.isabel = {
+      hashedPassword = "$y$j9T$vCF2V4znV5q3n6PxO5i6z/$T9Xw1s0PEvJys.29suA3Gbwv9XvJo98cZVhULWk0MtC";
+    };
+  };
+}

modules/nixos/users/root.nix

···
+{ config, ... }:
+{
+  users.users.root = {
+    inherit (config.users.users.${config.garden.system.mainUser}) hashedPassword;
+  };
+}