{
  self,
  config,
  ...
}: let
  backupSchedules = import "${self}/data/backupSchedules.nix";
  inherit (config.services.secrets) secrets;
in {
  services.restic.backups.caldav = {
    user = "root";
    paths = [
      "/var/lib/radicale"
    ];

    repository = "s3:s3.eu-central-003.backblazeb2.com/Chaos-Backups/Restic/CalDAV";
    passwordFile = "${secrets.restic_password.path}";
    environmentFile = "${secrets.restic_env.path}";
    createWrapper = true;

    pruneOpts = ["--keep-last 50"];
    timerConfig = backupSchedules.restic.high;
  };
}