Fair point.
My thinking was: if OPs screw is best screwed in with a philips screwdriver, I won't suggest a flathead one, just cause we're in the flathead sublemmy. But thinking about it now, I got my priorities mixed up here, privacy goes over convenience for the audience here including myself.
Here are some selfhosted solutions that would function similarely:
with api:
without api:
- https://github.com/CollaboraOnline/online
- https://github.com/ONLYOFFICE/DocumentServer
- (probably eurooffice now as well right?)