Update: A better approach is detailed in Laptop Setup for an Awesome Development Environment. It’s been two and a half years since my last laptop. It’s neat to look back and see how much has improved since then for setting up a Ruby development environment. Of particular note, Homebrew, RVM, and Bundler did not exist back then. Here’s how I set up an OS X 10.7 (Lion) thoughtbot laptop in 2011. GCC
![2011 Rubyist's Guide To A Mac OS X Development Environment](https://cdn-ak-scissors.b.st-hatena.com/image/square/beac31a4be8e4962e2fefc94fd70b667eb3e9cec/height=288;version=1;width=512/https%3A%2F%2Fimages.thoughtbot.com%2Fblog-images%2Fsocial-share-default.png)