{
  services.flatpak = {
    enable = true;
    update.onActivation = true;
    packages = [
      {
        flatpakref = "https://sober.vinegarhq.org/sober.flatpakref";
        sha256 = "1pj8y1xhiwgbnhrr3yr3ybpfis9slrl73i0b1lc9q89vhip6ym2l";
      }
    ];
  };
}