{
  pkgs,
  config,
  lib,
  wallpapers,
  ...
}: {
  systemd.user.services.wallpaper = {
    Unit = {
      Description = "Wallpaper Switcher daemon";
      After = ["graphical-session-pre.target" "xdg-desktop-autostart.target"];
      Wants = ["graphical-session-pre.target"];
    };
    Install.WantedBy = ["graphical-session.target"];
    Service = {
      ExecStart = lib.getExe (pkgs.writeShellApplication {
        name = "wallpaper";
        runtimeInputs = with pkgs; [procps feh swaybg python3];
        text = ''
          export WALLPAPERS_DIR="${wallpapers}"
          export WALLPAPERS_STATE_FILEPATH="${config.xdg.stateHome}/wallpaper-switcher/switcher_state"
          export WALLPAPER_WAIT_MIN=60
          export WALLPAPER_WAIT_MAX=180
          exec ${./wallpaper-switcher.py}
        '';
      });
      RestartSec = 3;
      Restart = "on-failure";
    };
  };
}