The documention generator we currently use isn't scaling well with 100+ types and 800+ mutations. It makes the sidebar too unwieldy. It looks like SpectaQL has the same issue. Not sure there's a great solution while keeping to static pages.
Thanks much for the open license. I hope to try it soon.
We might pay for a searchable hosted white label version.
Our schema is not as big as yours, but I could see how things could get a bit unwieldy on the navbar. Come on over to the repo and we can work on a solution together - I'm sure there's something we can figure out if we put on our design + product + engineer hats.
Of course this grouping has to be done a little manually. And it's not perfect, but definitely better than the flat alternative. For reference, we have thousands of types.