[xdfgh1112]

For backup you probably want something like Borg to handle deduplication of identical content between backups.

[peterwaller-arm]

Author here, I agree with xdfgh1112, please take care before using brand new software to store your backups!

[mxuribe]

Yes, any time that i use something new or different (or both) for something as essential as backups, i take great and deliberate care...and test, test, test...well before standardizing on it. ;-)