CloudI is an open-source private cloud computing framework for efficient, secure, and internal data processing. CloudI provides scaling for previously unscalable source code with efficient fault-tolerant execution of C/C++, Erlang, Java, Python, or Ruby services....

Connects FitNesse to Selenium via Ruby, making it easier to write Selenium-driven tests using Slim-table syntax.

Thoth is a blog engine written in Ruby and based on Ramaze and Sequel. Its simple, elegant architecture, minimalist featureset, and extensible codebase make it both fast and easy to customize.

MultiConditions is a simple ActiveRecord plugin for storing ActiveRecord query conditions and make complex queries
painless.

This plugin doesn't replace ActiveRecord#with_scope method,
nor the basic :condition usage but extends it with the ability
of storing illimitate conditions in multiple step....

Porting The Pragmatic Programmers' Rubicon to Test::Unit and Ruby 1.8+ in an effort to eventually include it in the "test" directory of the Ruby distribution.

A specced little language written with ruby and treetop. It has lambdas, recursion, conditionals, arrays, hashes, ranges, strings, arithmetics and some other stuff. It even has a small code import facility.

aStor is a network attached storage configurable via user-friendly web-interface. Based on Einarc (a universal storage RAID command line interface) and GNU/Linux. aStor provides file-based access. Currently it supports CIFS, NFS, FTP.

smarbs is a simple backup script written in ruby. Using rsync it creates full snapshots in certain intervals within a minimal use of space. smarbs is easy configurable via config files and can be run as a cronjob.

Darss is a simple web application that allows password protected sharing of changes to Darcs repositories via RSS.

A Ruby implementation of augmented interval tree,