Change external to ISO, the most likely way I'll use it

hosts/iso/users/default.nix

@@ -0,0 +1,4 @@
+{ ... }:
+{
+  imports = [ ./main ];
+}

hosts/iso/users/main/default.nix

@@ -0,0 +1,10 @@
+{ config, lib, ... }:
+{
+  home-manager.users."${config.sysusers.main}" = {
+    home = {
+      desktop.enable = true;
+      remote-desktop.enable = true;
+      stateVersion = lib.mkForce "24.11";
+    };
+  };
+}