User blog comment:Kain McBride/An Introduction.../@comment-31081547-20140403160136/@comment-31081547-20140404145111

Well messing with the code is indeed fun sometimes, but if you will be able to, later, create an engine able to create full patchs, then it's a really good thing^^

Also, don't know if you heard of it, but there is an engine being created to create side story, warning, not a program, an engine.

It's the covariant engine, here

Be sure to check that out too^^