it's very simple right now, just broadcasting and receiving notes. decided to hold off from the complexities for requesting and sending queries. but that would be a true p2p setup.
the dream would be negentropy syncing between nodes
Discussion
a much simpler solution is creating a http endpoint that exposes the relay's internal event primary keys (serial numbers) and then syncing is just keeping a count of the last newest event serial they have already got. et voila.
i got the idea from nostr:npub12262qa4uhw7u8gdwlgmntqtv7aye8vdcmvszkqwgs0zchel6mz7s6cgrkj (bless him) and it's something i will be adding back to my relay in the near future but any relay dev can easily implement this shit. it's retardedly simpler than negentropy.
ok ok ok i'll add back the http api. you twisted my arm :)