{ lib, config, options, ... }: {

  options.mods = {
    acpid.enable = lib.mkOption {
      default = false;
      type = lib.types.bool;
      example = true;
      description = ''
        Enables acpid.
      '';
    };
  };

  config = lib.mkIf config.mods.acpid.enable (lib.optionalAttrs (options?virtualisation.virtualbox.host) {
    services.acpid.enable = true;
  });
}