About Linus' WAN show notes about backups and losing data: I think there does exists something that he describes that fits the bill

• Tahoe-LAFS

  9 1,276 9.6 Python

  The Tahoe-LAFS decentralized secure filesystem.

  

There is Tahoe-LAFS which is decentralized open-source software where you can add remote storage servers (for example on a friends server) to store your data but the server does not have the encryption keys. Your data is encrypted before it leaves your computer (they call it "Least Authority File System" or LAFS because only you hold the keys, the storage servers just store the data). The data is encrypted in-transit and on-rest and supports multiple nodes so even if one of the servers burn down you still have the same data elsewhere. I believe they offer a commercial storage solution but you and your friends could install it for yourselves and run a closed network.

• RetroShare

  32 1,673 9.4 C++

  RetroShare is a Free and Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform.

  

There is also Retroshare which is a "friend-only network" so you only connect to nodes of people you implicitly trust e.g. your friends (instead of everyone in the world like with e.g. Bittorrent). It is also encypted in-transit but I am not sure if it is encrypted on-rest.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

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