I'm crafting yet another character builder as a practice project. I don't know if it will ever be in a state where it could be released, but I thought that I might as well choose components so it would be possible. If I get it in working condition :D

Best to just avoid any issues by keeping them separate -- rather than making a D&D builder, make a generic character builder with a D&D data set.

I don't know how to do that =D If they're incompatible, I will try to choose libs with more permissive licenses, such as MIT or BSD licenses.