The official Airbrake library for Ruby on Rails. Links to other Airbrake libraries are in the ReadMe.
RFC 1143-compliant state machine for performing TELNET option negotiation in Ruby
English time and date parsing for ice_cube
Fast, Nimble PDF Writer for Ruby
The Ruby barcode generator
ScripTTY is a library for JRuby that lets you write scripts to control full-screen terminal-based applications.