FYI: You will need to purchase RubyMotion from RubyMotion.com. It is a paid product.
1. If you haven’t done so already, setup your normal Ruby development environment setup. Instructions are here if you need them: http://jemaddux.com/post/87499556472/setting-up-your-ruby-environment-on-mac
2. Download and run the executable from rubymotion.com.
Simple setup. Right?
Creating a Hello World App:
From your terminal run these commands to generate your app open up the code.
motion create HelloWorld
Under the app folder you will find app_delegate.rb which is the starting point of your application.
Change the application method to look like this:
Go back to your terminal and type ‘rake’ to run the app in the simulator.
You should see something like this:
You are done!