The one thing I desperately wish Umbrel shipped with was an easy way to network with other Umbrel users for backup and accessibility. Let people set limits in terms of how much storage they're willing to allocate to others. REQUIRE end-to-end encryption on backed up files. But help people create their own community micro-clouds using each other's computers.

To me, the risk of backing things up in one building is too high, but the inconvenience of going even somewhere else in my own town regularly enough to rotate my backups is too high. But if my family members and I could easily back up each other's systems from our various states? Or my group of dorky college friends who are now all over the world could easily share with each other? We'd be all over it.

Distributing your backup over the spare storage of many other NAS servers is the main idea behind Storj, which provides a remarkably cheap price per TB per month.

You might be interested in Peergos which lets you easily live mirror to another instance and everything is E2EE.

It seems much easier to back up to B2 or something but that's even more money and yet another account.