how do I write a scaffold in rails?

I want to write a rails gem that can scaffold a working prototype of the basic functionality of the gem and I was wondering if anyone can explain the process. I know this is a broad topic but I'm hoping for some pointers to tutorials or other rai开发者_StackOverflowls docs.

Thanks!

Like most problems I try to solve with rails, there's already a great project that helps you create "starter apps" with rails. Rails Apps helps you create application templates that you can then use to generate starter apps. There are some great examples (i.e. devise + rspec + cucumber) to get you started.