The RGen rdoc documentation is available at Rubyforge.
Here are the slides I used at Code Generation 2010. This presentation is about Concrete.
See Joel VanderWerf’s brief introduction to RGen as part of his presentation at RubyConf 2009. Thanks Joel!
Here are the slides I used at Code Generation 2009.
My first article introducing RGen (Feb 2009) is available at InfoQ