I have a Raspi 3b+ to play with, and thought about using it as a Google Drive alternative for collaborative docs since there are some cool stuff Google Docs can’t do, but LibreOffice do. Any similar experience?
https://hub.docker.com/r/linuxserver/libreoffice works. Make sure you use a 64bit OS
CryptPad might work. Most of the heavylifting is clientside.
Last time I checked the OnlyOffice document editor wouldn’t run on ARM and the Collabora/Nextcloud office is very heavy on server resources.
Onlyoffice does now have an ARM version, I run it on a raspberry pi 4 (integrated with seafile), and it works fairly well. Can’t vouch for how much power it needs, to say if a pi 3b+ will be enough, though. Pretty sure it’s lighter than collabora, since more is done on the client side.
I agree with the other commenter that suggested cryptpad, though. If all you’re after is a Google docs like collaborative experience, cryptpad is brilliant, and much more resource friendly. (The office editor it uses is also a slightly modified Onlyoffice, so almost exactly the same feature set)