{
  cron_parser = {
    owner = "kostya";
    repo = "cron_parser";
    rev = "v0.3.0";
    sha256 = "0ss5zhlvq8kcmc8j2msigpayrx0nys44j66d6smdnql06bncrm13";
  };
  cron_scheduler = {
    owner = "kostya";
    repo = "cron_scheduler";
    rev = "v0.3.0";
    sha256 = "15lk8x7p5nq388ll7g5al9mflr1723kj6akrj9fadqf9535i6rqc";
  };
  db = {
    owner = "crystal-lang";
    repo = "crystal-db";
    rev = "v0.9.0";
    sha256 = "0am5njx9g0m7lqmzs4qpgrnqq2pl9yb9h6jfrwgarx15c4jdrrzd";
  };
  sqlite3 = {
    owner = "crystal-lang";
    repo = "crystal-sqlite3";
    rev = "v0.16.0";
    sha256 = "1kqbp642gskffwpa98l08s3chx0d49wngjsh0ax7pbjn9kgf7sq5";
  };
}