{
  pkgs,
  lib,
 ...
}:
with lib; let
  # load the wallpapers from the wallpapers directory - this gives a set with the folder content
  dirContent = builtins.readDir ../../../wallpapers;
  wallpaperString = lib.strings.concatMapStrings (x: " " + x) wallpapers;
  # # load each wallpaper and keep its path (now in the nix store) as an array
  # wallpapers = map (x: builtins.readDir "${../../../wallpapers}/${x.value}") dirContent;
  # wallpaperString = lib.strings.concatMapStrings (x: " " + x) wallpapers;

  # script that picks a random wallpaper from the array and sets it as the desktop background
  monitor = ""; # leave empty to set the wallpaper on all monitors

  wallpaperRandomizer = pkgs.writeShellScriptBin "wallpaperRandomizer" ''
    wallpaper=$(shuf -n 1 -e ${wallpaperString})
    hyprctl hyprpaper unload all
    hyprctl hyprpaper preload $wallpaper
    hyprctl hyprpaper wallpaper "${monitor},$wallpaper"
  '';

in {
  home.packages = [wallpaperRandomizer];



  services.hyprpaper = {
    enable = true;

    settings = {
      ipc = "off";
      splash = false;
    };
  };

  systemd.user = {
    services.wallpaperRandomizer = {
      Install = {WantedBy = ["graphical-session.target"];};

      Unit = {
        Description = "Set random desktop background using hyprpaper";
        After = ["graphical-session-pre.target"];
        PartOf = ["graphical-session.target"];
      };

      Service = {
        Type = "oneshot";
        ExecStart = "${wallpaperRandomizer}/bin/wallpaperRandomizer";
        IOSchedulingClass = "idle";
      };
    };

    timers.wallpaperRandomizer = {
      Unit = {Description = "Set random desktop background using hyprpaper on an interval";};

      Timer = {OnUnitActiveSec = "6h";};

      Install = {WantedBy = ["timers.target"];};
    };
  };
}