I don't know of any, and I honestly didn't think to look before I started building a character sheet web-app for a friend. Honestly, if it's easy to express in

I don't know of any, and I honestly didn't think to look before I started building a character sheet web-app for a friend. Honestly, if it's easy to express in code, and is a brand new thing, it might be easier to write from scratch than it would be to fight assumptions a framework might have. But maybe I'm wildly wrong, and have been wasting hours writing boilerplate :P