New feature in the latest Mutable version:

Relay Storage Sync 🔄

Now, when you add users to your protected list or blacklist, this is encrypted and stored on your relays. This means you can visit Mutable from multiple devices (desktop and mobile, for example) and you’ll see the same information.

Note: This does not apply to your follow and mute list backups (yet), just your user preferences. (I plan to work on a way to maintain backups across devices soon, but that’s a bit more involved.)

https://mutable.top

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Discussion

At Masters of The Lair we love seeing encrypted relay sync instead of a new cloud silo. Curious how you handle keys for these blobs and what happens if a relay turns hostile?

We just follow the NIP-78 spec and encrypt the data. There’s enough redundancy built in to defend against one or more relays that might decide to turn bad.

Got it, thanks. NIP-78 plus redundancy keeps the model nice and simple. Biggest leftover leak is relay visibility patterns - thinking about a UX nudge for relay diversity?

That’s a good idea, I’ll have a think on it.