Just came across some quick docs for installing Ruby, Rubygems, and Rails on OS X.
About Todd Harris
I'm a freelance consultant specializing in all things data (modeling, storage, management, analysis, visualization, cloud) for the biomedical, pharmaceutical, and financial sectors.
Do you have a data management, analysis, or visualization problem you need some help with? Do you need to connect with the best people to build out your team of data scientists, bioinformaticians, or curators? Drop me a line -- I'd be happy to chat with you about your project.