Spree is a complete open source e-commerce solution built with Ruby on Rails.

RailsAdmin is a Rails 3 engine that provides an easy-to-use interface for managing your data.

Open source e-commerce for Ruby/Rails.

The Ruby on Rails application that powers the OpenStreetMap website and map editing API. Used by tens of thousands of contributors mapping the world.

CocoaPods manages library dependencies for your Xcode project.

Automated dependency updates

Connect suppliers, distributors and consumers for the sale and purchase of local produce

The missing package manager for Chrome OS

Classy web-development dressed in a DSL

A distributed build system for the open source community.

Language Savant. Recognize the language of files on github.com.

A privacy aware, distributed, open source social network

Solidus, Rails eCommerce System

Server automation framework and application

The Ruby on Rails framework

Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort.

Background job processing done right.

A command line utility. ColorLS = LS + color + icons

Vagrant is a tool for building and distributing working environments. http://www.vagrantup.com

Puppet, an automated administrative engine for your Linux, Unix, Solaris, Windows, and OS X systems, performs administrative/configuration tasks based on a centralized specification.