https://video.nostr.build/fe40f309c4458fc0ee83f70cdaa1403703fee22882de409362cf74422d9934f6.mov

As promised, I solved the List Synchronization Problem (your contact list being swiped out problem) for the whole Nostr community so that you don't have to re-invent the algorithm again.

Here is a demonstration with Relay List, which is a harder version of the problem because we also use relays to synchronize the configuration of themselves.

You can open 2 different devices/clients and modify the same list with different values, and they will converge to the same value instead of overriding each other.

Watch what happened from 26s - 28s!

The secret is using a data structure of CRDT. More on this later.

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I'm just tagging more nostr developers I have on top of my head. Feel free to tag & share to other developers & users.

Feedbacks welcome. If the effect in the video is what you consider a solution for the list synchronization problem and upvote this note, I will draft a NIP.