TLDR; This specific website is on low support (aka staying online and fixing critical bugs only).
The page started as a fan project to allow users to build custom army books for OPR games. Currently, I'm working on V2 (so to say) in collaboration with OPR. Thus I have less time to improve much here. We will probably find some way to migrate custom books into the new WebApp once the development is far enough. I will have this page here running for now.