Use BTRFS Snapshots For Backups

Try: btrfs-snapshots.sh --help

Setup daily btrfs snapshot of all mounted subvols in /etc/fstab:

sudo cp btrfs-snapshots.sh /etc/cron.daily/btrfs-snapshots

If you want hourly bakups, just enter:

sudo cp btrfs-snapshots.sh /etc/cron.hourly/btrfs-snapshots