Embrace the Hack: Use Ruby to Write Ruby

[harlanbarnes]

Here's the idea:

https://gist.github.com/harlanbarnes/d38934f96abc41347a7a

Ref: #1 and #4

[iroller]

I'm 👍 on this since I don't see any other options as long as you need to generate that ruby config file.
Definitely worth putting it into a library.