In my sporadic work-from-home I'm fixing up some of the computing infrastructure.
We now have incremental backups for the files in the nextcloud. If you lose something particularly important, we can recover them. I haven't made a means to do this as a user yet (namely, read-only access), but might at some point.
It will not back up files larger than 1Gigabyte - beware that detail.
Also, if you have long-lived services that you want to monitor (like backups). You can use the https://healthchecks.mccullerlab.com/ service. It is watching all of the backups of the web services and nextcloud. It is running the same service as at healthchecks.io. It just watches for pings to http address on a schedule.
This will be used to back up and monitor the various lab machines as well. That is nearly set up.