Dragan Espenschied is a user on digipres.club. You can follow them or interact with them if you have an account anywhere in the fediverse.
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What are your preferred alternatives to Google Drive's shared documents for writing/editing? Preferring ones which don't require accoutn/login!
Please Boost!?
You can self-host HackMD, too:
https://github.com/hackmdio/hackmd/
Haven't tried that myself, would be interesting to hear how well that works.
Otherwise there is the "classic" Etherpad, from http://etherpad.org/ which I do self-host and which is quite easy to handle.