{pkgs, ...}: {
  services.flatpak.enable = true;
  environment.persistence."/srv".directories = [
    {
      directory = "/var/lib/flatpak";
      user = "root";
      group = "root";
      mode = "0755";
    }
  ];
  xdg.portal = {
    enable = true;
    extraPortals = [pkgs.xdg-desktop-portal-gtk];
  };
}