I agree coming up with a good backup strategy is an essential ingredient to long-term-sustainable self-hosting. Speaking for myself, I don't have the goal of 1

I agree coming up with a good backup strategy is an essential ingredient to long-term-sustainable self-hosting. Speaking for myself, I don't have the goal of 100% detaching myself from "the grid", so to speak. I still want to pay an ISP to act as a gateway to the internet, and want to pay the local electric company to power my house. To me, "backups" are a commodity service, like internet service and electricity. Dumb file servers are offered by any number of places for a price lower than the cost of in-housing that service, and with a negligible switching cost at for my workload. I'm personally OK with having one relatively shitty local mirror, and a background task that rsync's to backblaze. If BB makes noises about going under, I can migrate aws s3, rsync.net, digital ocean, whatever entity wants to charge me the least for my workload. I don't think NAS's or ZFS are strict requirements, although playing with them can be fun.