Keep a backup policy with borg

First issue:

borg list ./backup-dir.tld

Next, try a dry run:

borg prune --dry-run --list --show-rc --keep-daily 31 --keep-weekly 6 --keep-monthly 12 ./backup-dir.tld

Finally prune old backups:

borg prune --list --show-rc --keep-daily 31 --keep-weekly 6 --keep-monthly 12 ./backup-dir.tld