Bitnami JRuby Stack greatly simplifies the development and deployment of JRuby on Rails applications. It includes ready-to-run versions of Tomcat, MySQL, JRuby and Rails and required dependencies. JRuby is a 100% Java implementation of the Ruby programming language. It is Ruby for the JVM. JRuby provides a complete set of core built-in classes and syntax for the Ruby language, as well as most of the Ruby Standard Libraries. Rails is a full-stack MVC framework for database-backed web applications that is optimized for programmer happiness and sustainable productivity. With JRuby Stack, you can: develop your JRuby on Rails application using Java from Ruby, make a .war file out of your application in 3 simple steps, deploy it to the bundled Tomcat and commit and checkout your code with the subversion client.