Crabgrass is a software libre web application designed for social networking, group collaboration and network organizing. Our goal is to create communication tools that are tailored specifically to meet the needs of bottom up grassroots organizing. By social networking, we mean the ability of users to get to know one another through their online contributions and presence. By group collaboration, we mean the ability of small groups to get things done, such as share files, track tasks and projects, make decisions and build repositories of shared knowledge. By network organizing, we mean the ability of multiple groups to work together on projects in a democratic manner.

This module provides basic functions for handling mime-types. It can handle matching mime-types against a list of media-ranges.See section 14.1 of the HTTP specification RFC 2616 for a complete explanation.

RAD is a framework for programming the Arduino physcial computing platform using Ruby. RAD converts Ruby scripts written using a set of Rails-like conventions and helpers into C source code which can be compiled and run on the Arduino microcontroller. It also provides a set of Rake tasks for automating the compilation and upload process.

Fit is a tool for enhancing collaboration in software development. It's an invaluable way to collaborate on complicated problems--and get them right--early in development. Fit allows customers, testers, and programmers to learn what their software should do and what it does do. It automatically compares customers' expectations to actual results.

A 2D physics library written in C

Gosu is a 2D game development library for the Ruby and C++ programming languages, available for Mac OS X, Windows and Linux.

Shoes is a very informal GUI toolkit. It's for making regular old windowing apps. It's a blend of my favorite things from the Web, some Ruby style, and a sprinkling of cross-platform widgets.

Devalot is a software project management tool. Think about it this way: take the best features from applications like Trac, Collaboa, and GForge, then sprinkle in a few features from Mephisto and Typo. Mix them all together, add some secret sauce, and you start to get the taste of Devalot.

A Multidimensional dataflow processing library for PureData and Ruby, designed for interactive multimedia