Master programming by recreating your favorite technologies from scratch.

Vigil, the eternal morally vigilant programming language

Cross-platform runtime environment for the Elm programming language.

ENNGene: an Easy Neural Network model building tool for Genomics

Efficient and thread-safe code loader for Ruby

Easy to use and reliable cross compiler environment for building Windows, Linux, Mac and JRuby binary gems.

jsonnet formatter for vscode

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

A high performance implementation of the Ruby programming language, built on GraalVM.

JRuby, an implementation of Ruby on the JVM

The Rubinius Book

CLI plugin to support multi-host deployments

Thread-safe collections for Ruby (merged with concurrent-ruby)

Atomic references for Ruby (merged with concurrent-ruby)

A weak reference implementation for Ruby that works across runtimes (MRI, REE, Jruby, Rubinius, and IronRuby)

Ghost blog quickstart for the OpenShift platform

Actor based Event Sourcing library for ruby

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

Openstack Foreman Installer

Tasks management engine and plugin for Foreman

A content (Packages and Configuration) management plugin for Foreman

DYNamic workFLOW orchestration engine

Attempt to create CLI client for The Foreman

Provides causes for exceptions.

A gem exposing Pulp's juiciest parts.

Actor model library. Merged to gem concurrent-ruby.

Fast extensible html5 builder written in pure Ruby. Replaces templating engines without loosing speed bringing back the power of OOP.

A small gem for intercepting raise calls to dig up hidden and buried exceptions.