Yep, that is accurate. There is also a command/API route to find the path on disk iirc. In my setups it just was easier to use fixed paths (or relative to proj

Yep, that is accurate. There is also a command/API route to find the path on disk iirc. In my setups it just was easier to use fixed paths (or relative to project dir) from a permissions management perspective. Backup tools did not always have to/should run as root which is helpful on machines providing multiple distinct services. Putting borg or a similar tool in a container that is part of the compose manifest file can also help. I haven't seen this used in practice though yet.