Just set up borg on a new macbook for backups. I use it for all my computers and servers, and I highly recommend it if you want to self-host! It ticks all the boxes for good backups:

- open source

- nice GUI and CLI (Vorta for the GUI)

- encryption

- deduplication

- compression

- backup to multiple destinations, including any SSH destination. I use borgbase.com and my home server.

- works on Linux and macOS

- robust scheduler

- alerts when backups don’t run