MatthewD on Nostr: GM Nostr. how does this work? if I transmit a note on primal, does it broadcast to ...

GM Nostr.

how does this work? if I transmit a note on primal, does it broadcast to only the relays I have hooked up to primal? or does it transmit to the ones I got on Amethyst too?

Maybe this is 101 Nostr, but I slept through the lecture.