Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape
A Rails engine that helps you put together an admin dashboard
Coherence is a full featured, configurable authentication system
imap cleanup & command line tool
Task Scheduler for Java, Groovy, Javascript, python & ruby
Two-factor authentication system
Interprets file permissions
Partylog2 is a Graylog2 appliance based in Turnkey Linux 12
something that writes code for you