A code-searching tool similar to ack, but faster.

Nokogiri (鋸) makes it easy and painless to work with XML and HTML from Ruby.

nanomsg library

A lightweight JIT compiler based on MIR (Medium Internal Representation) and C11 JIT compiler and interpreter based on MIR

mTCP: A Highly Scalable User-level TCP Stack for Multicore Systems

ngx_mruby - A Fast and Memory-Efficient Web Server Extension Mechanism Using Scripting Language mruby for nginx

A keyboard firmware platform in PicoRuby

A tiny subset of Ruby with a Lua'esc VM

An open source 40% keyboard

Fork of Junio Hamano's git for users

Community version of the PostgreSQL multi-purpose Ruby Foreign Data Wrapper

Crystal implementations for The Computer Language Benchmarks Game

A seamless, gasketmounted QAZ-like 40% keyboard

interface to libuv for mruby(experimental)

An Alice-like 35% 3d printed mechanical keyboard using ItsyBitsy dev boards

This is an emulator, assembler, and an implementation of the Forth programming language for Notch's DCPU-16. See the README for details.

A 3d printable handwired mechanical keyboard for small print beds

Morse Code USB Keyboard mk II

Eleven by Rosie

(mirror) Trust Commerce TCLink e-commerce library as a gem. (Not affiliated with Trust Commerce, and I no longer use this library)