My goal is to to fully ditch Google Photos for Immich. I have about ~3TB of photos and videos. Looking for a super simple way of backing up the library to cloud storage in case of a drive failure.
Ideally, this will require nothing on my part besides copying files into a given folder. And ideally the storage will be encrypted and have basic privacy assurances.
Also if it matters my home server is running Debian.
That absolutely works, but when I built my offsite backup to hetzner I also thought about setting up own hardware and came to conclusion that for myself it doesn’t really make a ton of sense. New RPi + 4TB ssd/m.2 drive with accessories adds up to something around 400€ (if that’s even enough today), or few years worth of cloud backups. With own hardware there’s always need to maintain it and hardware failures are always an option, so for me it makes more sense to just rely on big players with offsite backups. Your case might be different for various reasons, but sometimes renting capacity just makes more sense in the big picture.