In a similar spirit, maybe IPFS nodes, or instances of federated communication networks like Mastodon/Matrix/etc for friends and family, or maybe even something

In a similar spirit, maybe IPFS nodes, or instances of federated communication networks like Mastodon/Matrix/etc for friends and family, or maybe even something like Nextcloud. If you band together with a few people in your community, you could also use each other’s machines for encrypted “off-site” backups (note: you’re all still sort of co-located geographically, so YMMV).