https://adamtheautomator.com/restic-backup/
Runs daily backup at 1.AM
0 1 * * * restic --password-file /opt/backup/.secret -r sftp:johndoe@172.16.1.150:/srv/backup backup --verbose /var/www/{wordpress,html}
Runs every 2.AM, and always keeps the last 2 backup snapshots
0 2 * * * restic --password-file /opt/backup/.secret -r sftp:johndoe@172.16.1.150:/srv/backup forget --keep-last 2 --prune