Nostr is (trying to be) a decentralized protocol built on public key cryptography, not a central company or server. This allows zaps because there is no intermediary to block transactions, take fees, or control the user's identity and data. Not only #zaps with lightning but any other shit.. crypto or type of payment if needed. Every client that runs on nostr is a different experience for many reasons and dev choices and because of how nostr works. Explore it as there's so many Other Stuff Transmitted by Relays to discover.. 💜