{ ... }: {
  # this was in my home-manager config, but looks like more 
  flake.nixosModules.hypridle = { ... }: {
    services.hypridle = {
      enable = true;
      settings = {
        general = {
          lock_cmd = "notify-send 'lock!'"; # dbus/sysd lock command (loginctl lock-session)
          unlock_cmd = "notify-send 'unlock!'"; # same as above, but unlock
          before_sleep_cmd = "notify-send 'Zzz'"; # command ran before sleep
          after_sleep_cmd = "notify-send 'Awake!"; # command ran after sleep
          ignore_dbus_inhibit = false; # whether to ignore dbus-sent idle-inhibit requests (used by e.g. firefox or steam)
          ignore_systemd_inhibit = false; # whether to ignore systemd-inhibit --what=idle inhibitors
        };
        listener = {
          timeout = 500; # in seconds
          on-timeout = "notify-send 'You are idle!'"; # command to run when timeout has passed
          on-resume = "notify-send 'Welcome back!'"; # command to run when activity is detected after timeout has fired.
        };
      };
    };
  };
}