Install rails 4 in Mac OS X Mountain Lion

Thanks to Pete for this great how to that step-by-step helps you to get rails 4 up and running in your Mac with Mountain Lion:

Ruby on Rails with Ubuntu on DigitalOcean

Digital Ocean is now offering the possibility to deploy Ruby on Rails with Ubuntu 12.10.

Here is the guide:

I will be able to give you feedback about the experience once I try it!