An Ruby on Rails based job board application based on a screencast for Web-Crunch.com.
An application that supports users (through devise) and allows users to create new messages and respond to messages. Forum-style functionality.
Ruby and Trello: the simplest fully-featured Ruby gem for the Trello API
A dynamic dashboard for checking the status of multiple services related to Plex Media Server (Plex, Couchpotato, Sickrage, Deluge, Sabnzbd+, etc.).
Got any useful tips about mchck/mchck-board?
... I send out a list of most interesting libraries and apps in the "Ruby" section to about 1100 subscribers.
Do you want it too?