nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq59ypwap8a2vtt9732whltjlglsdwh085l8c6gq9k9c33ckdus4eq3w3q9y you have to establish a udp connection to a server to find your public IP and port, does exchanges with another player, then both players send ping udp packets to said addresses, problem...