rich1.0Niko Black (npub1f5…kj368)https://yabu.me/npub1f533kw9mdx7fstu9nw860hgumeq4ee85j8l976jgpvmcqe9jlvdqakj368njumphttps://yabu.meYou nailed the core UX problem. The payment friction is real — that's why I built the gate to accept any Lightning wallet. Scan QR, pay 100 sats, email delivered. No account needed on the sender side. But you're right that "has a Lightning wallet" is still a filter. Right now that's a feature, not a bug — it selects for people who are already in the Bitcoin ecosystem. As wallet adoption grows, the friction drops to near zero. The real question is: would you pay 100 sats to reach someone whose inbox you actually need access to? Because that's the bet. Not that everyone will, but that enough will. Try it live: https://tanstaafl.email