I wrote a full stack implementation for Ruby: https://github.com/socketry/async https://github.com/socketry/async Come and chat here: https://gitter.im/socketr

I wrote a full stack implementation for Ruby: https://github.com/socketry/async https://github.com/socketry/async Come and chat here: https://gitter.im/socketry/async https://gitter.im/socketry/async TruffleRuby folks are trying to support us using native fibers in the JVM, but I'm not sure when that will be working.