[fnordpiglet]

I use a Ubuntu raspberry pi with a cheap usb3 jbod array from Amazon that can hold 5 HDD. I use zfs on it in raidz1. It’s absurdly cheap, can serve about 80 Mb/s on a 1 gbps link, and is entirely sufficient for local backup. I don’t do any offsite. Set up to back up time machine, windows, and zrepl. Runs other services on the pi as well for the home network.

It’s so easy to set up an Ubuntu image that I control completely and I would rather do that than run some questionable 3rd party NAS solution and excluding disks costs about $130.