{
  lib,
  config,
  pkgs,
  ...
}: let
  astal = pkgs.astal.override {
    inherit (config.options) theme;
  };
  inherit (lib) mkIf;
  cfg = config.apps.astal;

  # astal is hyprland only
  session = "hyprland-session.target";
in {
  config = mkIf cfg.enable {
    default.appLauncher = lib.mkDefault "astal-launcher";

    home.packages = [
      astal.shell
      astal.launcher
    ];

    systemd.user.services.astal = {
      Install = {
        WantedBy = [session "tray.target"];
      };

      Unit = {
        ConditionEnvironment = "WAYLAND_DISPLAY";
        Description = "astal";
        After = [session];
        PartOf = [session "tray.target"];
      };

      Service = {
        ExecStart = "${astal.shell}/bin/astal-shell";
        Restart = "always";
        RestartSec = "10";
      };
    };
  };
}