The repository & cache config files are some of the only directly manipulable parts of a repository that aren’t versioned or backed up, so be careful when making changes!


# find cache directory
$ cd ~/.cache/borg/$(borg config /path/to/repo id)

# reserve some space
$ borg config /path/to/repo additional_free_space 2G

# make a repo append-only
$ borg config /path/to/repo append_only 1