RSpec-syntax compatible framework for RubySpecs

A Tumblr mode for Emacs

A Rails plugin to generate nice calendars.

A Rails plugin to get the zodiac sign on a given date

Rails plugin to create permalinks in models

Federico's personal dotfiles

Federico Builes' .emacs

Shipping Calculator written in Ruby to get quick quotes from the major carriers (UPS, DHL, FedEX, FreightQuote)

A Ruby virtual machine written in Ruby.