BitNami RubyStack now includes Git, Nginx and ruby19

We took into account your requests and RubyStack 1.2 includes updated
components, additionally nginx + nginx fair proxy balancer module, git,
ruby19 and many new useful gems. It is available for Linux, OS X and
Windows. Give it a try now and let us know what you think!

http://bitnami.org/article/new-rubystack-released