nostr:npub1w4uswmv6lu9yel005l3qgheysmr7tk9uvwluddznju3nuxalevvs2d0jr5 can Amber evolve to something that integrates different cryptographic identities on different platforms. Like "this key on nostr is the same person as this other key on BlueSky". Also: https://github.com/simplex-chat/simplex-chat/issues/2859