Linux kernel source tree

For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.

Modern HTTP benchmarking tool

TLS/SSL and crypto library

HandBrake's development repository

The systemd System and Service Manager

Nmap - the Network Mapper. Github mirror of official SVN repository.

A Super Mario 64 decompilation, brought to you by a bunch of clever folks.

A massively spiffy yet delicately unobtrusive compression library.

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

Lightweight Ruby

A Dead Simple VPN.

code and manual

A portable foreign-function interface library.

Optimized JSON

ruby bindings to libgit2

a realtime plotting utility for terminal/console with data input from stdin

Gilbert-Johnson-Keerthi (GJK) collision detection algorithm in 200 lines of clean plain C

Ruby interface for blink(1)