Cashu Nutshell token backup restore works nicely now on multiple mints. The tokens themselves are derived from a bip32 path that the user can reconstruct from a seed phrase.
Soon, we'll be formalizing this in a NUT and implement in Cashu libraries so all apps benefit from it.
Love to see bitcoin libs being used in ecash.
(Failed up upload the video with a nostr client, so here's the tw link)
