Builds command runnable from shell by simple and ellegant way. Also allows both synchronous executing or asynchronous one using EventMachine.

Eden is a source-code formatter for Ruby. It's designed around a robust lexical analyzer able to handle most of the dark corners of Ruby syntax, and able to be easily modified and extended.

Ruby/LDAP is an extension library for Ruby. It provides the interface to some LDAP libraries (e.g. OpenLDAP, Netscape SDK and Active Directory). The common API for application development is described in RFC1823 and is supported by Ruby/LDAP.

A Ruby file parser/interpreter/preprocessor that comments lines of code based on conditions at the time the file is required. Very handy to implement debugging logs and code that has to be commented (not just dynamically switched off).

Named fixtures have been introduced with rails 2, but writting all of them by hand is not helpful.

This exporter will : read each entries in database for a model and search for a name or title column read existing fixtures to get the name write each entries for a model using old fixture name, or name/title column or class name and id build belongs_to and has_and_belongs_to_many relations using fixture name...

Implementation of a Ruby binding to Apple's cross-platform multicast DNS Service Discovery API (aka Bonjour)

ruby on rails site for learning purposes,

The project aims to develop a compiler for the Ruby language that targets the .NET Common Language Infrastructure (CLI). Our goal is to be fully semantically compatible with the original Ruby interpreter developed by Yukihiro Matsumoto (Matz) and company. We wish to add Ruby to the family of languages used to develop .NET components that can be used by other .NET languages. We also aim to provide Ruby programmers with seemless access to the resources and capabilities of the .NET platform, including standard libraries and third party components developed using other .NET languages. We plan to support all implementations of the CLI, including the popular open source Mono implementation....

Magic: The Gathering card pricing site. Similar to a stock ticker, but individual cards instead of stocks. See price history, etc.

RubyTorrent is a pure-Ruby BitTorrent peer library and toolset. You can use it to download or serve files over BitTorrent from any Ruby program.