This. Simplest solution. I’ve had mine setup this way for a few years.

Just for anyone that wants to try Borg but wants a good ui, borgbase made “vorta” that is a great ui. Plus Borg has 2.0 around the corner.

I’ve used raspberry pi os and shortly arch arm, both work ok. I remeber having an issue with some python packages on arch arm, but thats it. Personally I chose Debian testing for my headless pi4 and have been happy. It’s running Syncthing, Mariadb, a few python scripts to pull data from pi pico-w. FTP server for IP cameras recording, Pydio, Pihole, and Gitea.