I decided to write up the rules I was working on for the Solitaire Framework as a system-agnostic, pay-what-you-want module in 1 page. I posted it today.
This is, all humility aside, a great little product. It is a great little engine, and you have NO reason not to get it. You can solo game in minutes, and have a clear set of steps to take you through.
Let me know what you think. And tell your friends. Seriously.