Ruby on RailsEdit

Ruby on Rails is a web application stack written in Ruby with a focus on "convention over configuration", testing, and rapid application development.

It is included in Mac OS X (as of Leopard), although in reality almost all deployments target some Linux distro and any development you might do on your Mac will end up being with a more up-to-date version that you install yourself.

Official site

See also

Older articles (not up-to-date)