I was at the Engine Yard office today and Brian Ford gave a talk on Rubinius. One of the things he mentioned is contributing to Rubinius. If you have an application running on MRI , try running it on Rubinius. The Rubinius team wants Rubinius to be a drop-in replacement for MRI. If your application doesn’t run correctly, it is considered a bug and you should report it.

Brian also wrote a blog post about it today. http://rubini.us/2011/10/18/contributing-to-rubinius/

rvm install rbx rvm use rbx gem install bundler cd myapplication rm Gemfile.lock bundle install

Rubinius is written in Ruby. One of the advantages of this is optimization. Your code, plus the code that runs your code can be optimized which will make your code faster. In reality though, you still need to test your app with Rubinius and compare its speed when running MRI.