Here’s the source article: http://www.frederico-araujo.com/2011/07/30/installing-rails-on-os-x-lion-with-homebrew-rvm-and-mysql/ My goals here are to update an environment and move to a new Susy release: http://susy.oddbird.net/ 1. Install and upgrade XCode from the Mac App Store (4.3.2 in this case). Also install the Command Line Tools found in the Preferences pane. 2. Install Homebrew. Not entirely necessary, but I’m enjoying…