nostr:nprofile1qqsprwdgjszdhucrfelp3p46nhzvd5mk7gu6zxp8r0fwc4n63zv9pnsppemhxue69uhkummn9ekx7mp0rqtknc, yeah, you can use nostrdb APIs directly for the zero-copy queries and nostr-sdk for the networking stuff.

You can eventually clone the nostrdb instance and pass it to nostr-sdk just to automatically save the events received from the relays into nostrdb.