Great points, I'd be happy to give some background. I originally started working on the project just for our DnD group about 5 years ago. At that time there weren't many other projects available or if so I wasn't aware of them. It was mostly Donjon and a few others that were available and none were built as individual packages that could be composed together and weren't open source. The GitHub org you see now is actually already a merger of existing efforts that were started by other developers who were working on a character sheet generator. The opendnd repo was only started recently as the tools have grown over the years and needed a sort of all-encompassing project.

That being said, I'm aware that other projects are out there now that have similar goals -- some further along than us as it's mostly been me working on it in my free time. However, I would say that our design decision is pretty different from the others in that each component is designed to be a separate standalone tool that can be used as a component to build other things. Because the end goal is so ambitious I think this design decision is critical if the project is ever to get close to achieving that goal. If I had to summarize in one sentence what we're trying to achieve, it's kind of a Dwarf Fortress level of detail but fully open source and fully interconnected components.