Runtime configuration loader that supports command-line flags, environment variables and config files alike
SomaScrobbler API server
Scrobble SomaFM radio stations to Last.fm
Reddi api wrapper
Terminal-based markdown note manager.
CLI tool to query the menu of canteens contained in the OpenMensa database
Rucola is an extension for RubyCocoa. It has a application skeleton generator and builds an "opinionated" application layout, like the one known from rails. And comes with RubyCocoa specific rake tasks.
IronNails is a framework inspired by the Rails and rucola frameworks. It offers a rails-like way of developing applications with IronRuby and Windows Presentation Foundation (WPF).