Same boat here, SpiderOak on Ubuntu (not much issues fortunately) but it does seem abandoned and not sure about its future.
As a general noob I also don't understand how I should use rsync.net appropriately. Do I encrypt all my data files before or is that done by Borg/Restic for example?
GP here. You’d have to encrypt the data before sending it to rsync.net. Borg and Restic can do that for you, but you’d have to manage the encryption keys safely). Doing it by yourself before borg or Restic do the backup is unnecessarily complex.
There’s a special “borg account” at a lower price (compared to the standard one) on rsync.net. That one assumes that you setup the retention policies for older versions in borg since rsync.net doesn’t do any (additional) snapshots/retentions (like it does for the standard, but slightly costlier, accounts).
The bigger issue is making sure others (in one’s circles) who may need the data are able to use the tool for backups and restores. That’s where I prefer GUI tools that are easy to use and easy to demonstrate, rather than CLI tools and scripts.
As a general noob I also don't understand how I should use rsync.net appropriately. Do I encrypt all my data files before or is that done by Borg/Restic for example?