Sinatra

Sinatra was designed and developed by Blake Mizerany (bmizerany) in California. Continued development would not be possible without the ongoing financial support provided by Heroku and the emotional support provided by Adam Wiggins of Heroku, Chris Wanstrath, PJ Hyett, and the rest of the GitHub crew.

• Project Website - Additional documentation, news, and links to other resources.
• Contributing - Find a bug? Need help? Have a patch?
• Lighthouse - Issue tracking and release planning.
• Twitter
• Mailing List
• IRC: #sinatra on freenode.net

Source: Sinatrarb