Great summary, thanks. Since Smart Vaults only rely on a bitcoin node and a nostr relay, it is also self-hostable.
This is not possible with Nunchuk, Fireblocks, BitGo, etc.
Right....just can you use the NIP-88 binary transmission method rather than the json method? https://github.com/nostr-protocol/nips/pull/512/files/a2cf31aaa95e7cb80501d54a04ce0256436e7d92
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