Add ethercalc app witch is supported on nextcloud:
We actually had it as an app before, the code is at https://git.cloudron.io/cloudron/ethercalc-app However we removed it, since it does not have an auth layer last time I checked and is really designed to be run from inside some framework. Not sure if there are projects out there, besides nextcloud, which have it well integrated.
For the auth part, please have a look on Framasoft public code auth layer on https://framagit.org/framasoft and on https://framagit.org/framasoft/framacalc
But okay, I see