Where did I copy this from in the first place?!? Again?!?

nix-system-configs/modules/local/hostname_username.nix

@@ -8,9 +8,6 @@
   # The machine file can set `config.local.hostname` before importing this module if desired.
   networking.hostName = config.local.hostname or "default-hostname";
 
-  # Expose a small list that machine files can use as hostPackages
-  myLocal.hostname.packages = with pkgs; [];
-
   users.users.${config.local.username or "defaultuser"} = {
     isNormalUser = true;
     description = config.local.userDescription or "NixOS Playground";