{
  config,
  pkgs,
  inputs,
  lib,
  ...
}:

{
  options = {
    desktop.shell = {
      walker.enable = lib.mkEnableOption "enable walker";
      rofi.enable = lib.mkEnableOption "enable rofi";
      launcher = lib.mkOption {
        default = (if config.desktop.shell.walker.enable then "walker" else null);
        description = "default launcher";
      };
    };
  };

  config = {
    environment.systemPackages =
      with pkgs;
      [
      ]
      ++ (
        if config.desktop.shell.rofi.enable then

          [ rofi ]
        else
          [ ]
      );
  };
}