Threshold of minimum disk space (GiB) to determine if queue runner should run or not.

          Threshold of minimum disk space (GiB) to determine if the queue runner should run or not.

          Threshold of minimum disk space (GiB) to determine if evaluator should run or not.

          Threshold of minimum disk space (GiB) to determine if the evaluator should run or not.

      };
    # Periodically compress build logs. The queue runner compresses
    # logs automatically after a step finishes, but this doesn't work
    # if the queue runner is stopped prematurely.
    systemd.services.hydra-compress-logs =
      { path = [ pkgs.bzip2 ];
        script =
          ''
            find /var/lib/hydra/build-logs -type f -name "*.drv" -mtime +3 -size +0c | xargs -r bzip2 -v
          '';
        startAt = "Sun 01:45";