Limit or restrict total backup storage space

I have tried to look through the options for backup and prune but I do not see a specific option for this issue. I am using web edition 1.0 Personal on Arm Linux and what I want to do is limit the occupied space on my storage.

For example, my local files occupy about 16 GB but I would like to limit their backups/revisions/snapshots/etc. to a total space occupied on storage of 500GB max.

Is there a way to set this in options (through Web Edition)? Otherwise, is there another or different (easy noob-friendly) way for limiting total space occupied?

This isn’t possible with Duplicacy. Your best bet is to set a limit on the size of the storage directory on your server.