I have a vps I use for other stuff, and put syncthing on it. My files are replicated between it, my computer and my phone. On the vps I activated the setting to store old versions

For photos I use hetzner’s storage share, a nextcloud offering. Photos are browsable with nextcloud’s “memories” app, really useful.

I don’t really believe in “backups”, ie a full copy of the content in another format that is unusable unless you run it through a special restoring process. If the files are being copied, why not make it useful ? Syncthing makes it so all environments are equally usable, and the versioning prevents mistakes. There is no restore phase: the files are already usable.

I really think we need to move our thinking away from the one-machine-with-copies mindset, and architecture our usages around multiple-machines-by-default. If the goal of backups is resiliency, a syncthing clusters achieves that.