This is another update of my previous posts (installing NextCloud with Collabora Office Online on Ubuntu 16.04 and then NextCloud with OnlyOffice on Ubuntu 18.04). I'm updating it thanks to my colleague in edtech, Stephen Downes' heroic videos showing how he went through this process using my 18.04 instructions on 22.04, running into a few minor issues... this update seeks to remedy the problems he encountered with the older tutorial.
SkFor any website that requires anyone (users or even just a few admins) to transfer secrets to and from it, you want to ensure the data is end-to-end encrypted. Today various browsers (like Firefox) give warnings when you're sending secret data (like passwords) "in the clear", namely unencrypted.
Update 2021-11-08: this post is now getting a bit long-in-the-tooth, and I need to update it to use up-to-date components. It might still be useful to folks, but use it with caution. Also, please note, we're using NextCloud with OnlyOffice (the open source community edition) these days. Update 2023-06-14: Here's a new tutorial for Ubuntu 22.04!