The Ruby SDK is supposed to be accessible here:
git clone email@example.com:llooker/ruby_sdk.git
…according to this documentation: http://www.looker.com/docs/reference/api-and-integration/ruby-sdk
But no such luck. The only visible project on GitHub is custom_visualizations.
Is there a new home for the Ruby SDK?
Nevermind just read this:
Note: To get access to the llooker repo contact your Looker analyst or help.looker.com.