- A summarized instruction tested on MacOSX 10.7.4 installing Ruby 1.9.3p194 and Rails 3.2.3.
- Follow the instructions on https://github.com/mxcl/homebrew
$ /usr/bin/ruby -e "$(/usr/bin/curl -fsSL https://raw.github.com/mxcl/homebrew/master/Library/Contributions/install_homebrew.rb)"