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

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

  config =  {
    programs = {
      walker = lib.mkIf config.desktop.shell.walker.enable {
        enable = true;
      };
    };
    environment.systemPackages = with pkgs; [
      (lib.mkIf (config.desktop.shell.rofi.enable) rofi)
    ];
  };
}