Ruby on Rails

Modern concurrency tools including agents, futures, promises, thread pools, supervisors, and more. Inspired by Erlang, Clojure, Scala, Go, Java, JavaScript, and classic concurrency patterns.

A framework for building native applications using React

Additional string functionality to make uri encoding easier and cleaner to use in your Ruby code

Extra scripts for managing LXC containers

Can be used to simplify the creation of forms inside the standard Django templating system

Ruby lock server and client.