Wesabot is a Campfire bot framework we've been using and developing at Wesabe since not long after our inception. It started as a way to avoid parking tickets near our office ("Wes, remind me in 2 hours to move my car"), and has evolved into an essential work aid. When you enter the room, Wes greets you with a link to the point in the transcript where you last left. You can also ask him to bookmark points in the transcript, send an sms message (well, an email) to someone, or even post a tweet, among other things. His functionality is easily extendable via plugins.

WhiteFuse Container Management Node API.

Implements named mutexes for ruby applications by creating a resource server to query for locks.

Simple authentication solution for any rails app.

Ruby client library for mobile handset detection

A Xiami radio player by command-line on ruby, help you listening to the Xiami via a geek way.

Xiki does what shell consoles do, but lets you edit everything at any time. It's trivial to make your own commands and menus to access other tools.

Sermont is a command line based script to monitor your servers.

ZeroAS provides an authentication service that uses 0mq as its transport protocol

zena is a Ruby on Rails CMS (content managment system) with a focus on usability, ease of customization and web 2.0 goodness (application like behaviour).

Zeta is a IRC bot written in ruby using the Cinch Framework

ZeroMQ-based queue system for background job