https://crystalshards.xyz,Crystal Shards,https://github.com/veelenga/awesome-crystal#readme,Crystal error: URLError(ConnectionRefusedError(61, 'Connection refused')) | reason: [Errno 61] Connection refused
https://www.w3.org/TR/2009/WD-eventsource-20090421,Server-Sent Events,https://github.com/veelenga/awesome-crystal#readme,Crystal error: <HTTPError 404: 'Not Found'> | reason: Not Found
https://faastruby.io,FaaStRuby,https://github.com/veelenga/awesome-crystal#readme,Crystal error: <HTTPError 502: 'Bad Gateway'> | reason: Bad Gateway