{
  amq-protocol = {
    url = "https://github.com/cloudamqp/amq-protocol.cr.git";
    rev = "v1.1.14";
    sha256 = "1pr5h3lxfhjmarfqpvfldn8d6425g3i56k4p4szk2jkffa0z38nz";
  };
  amqp-client = {
    url = "https://github.com/cloudamqp/amqp-client.cr.git";
    rev = "v1.2.3";
    sha256 = "1pbiq5srni87hd8q2x3vs4s2hpajlzzlwgalgnmb35dcyih1ff9k";
  };
}