{
  pkgs,
  utils,
  ...
}:

{

  system.activationScripts.patagia-agent = ''
    mkdir -p /var/lib/extensions
    mkdir -p /etc/systemd/extensions
  '';

  environment.etc."sysupdate.patagia-agent.d".source =
    let
      format = pkgs.formats.ini { listToValue = toString; };
    in
    utils.systemdUtils.lib.definitions "sysupdate.patagia-agent.d" format {
      "10-image.conf" = {
        Source = {
          MatchPattern = "patagia-agent_@v.raw";
          Path = "https://images.dl.patagia.dev/patagia-agent/";
          Type = "url-file";
        };

        Target = {
          InstancesMax = 2;
          Path = "/var/lib/extensions";
          CurrentSymlink = "/etc/systemd/extensions/patagia-agent.raw";
          Type = "regular-file";
          MatchPattern = "patagia-agent_@v.raw";
        };

        Transfer = {
          Verify = "no"; # FIXME: verify
        };
      };
    };
}