{
  config,
  pkgs,
  lib,
  ...
}:
let
  cfg = config.custom.services.zfsBackupServer;
in
{
  options.custom.services.zfsBackupServer.enable = lib.mkOption {
    type = lib.types.bool;
    default = false;
  };

  config = lib.mkIf cfg.enable {
    users.users.root.openssh.authorizedKeys.keys = [ ];
    environment.systemPackages = with pkgs; [ lz4 ];
  };
}