FastPubSub - Global low-latency pub/sub infra for real-time apps

Hi Product Hunt 👋 I’m building FastPubSub for teams that need real-time delivery across regions, especially in apps where communication is not just client-to-server, but also user-to-user, device-to-device, or many-to-many across distributed locations. That includes multiplayer games, collaborative apps, live dashboards, signaling, event fan-out, and other latency-sensitive systems. The core idea is simple: the default Internet path is not always the fastest or most reliable one. FastPubSub continuously measures path quality between relays and routes messages through better paths, helping avoid congestion, poor peering, and suboptimal routing. What makes it different is that it doesn’t just expose a pub/sub API and rely on standard Internet routing. It uses a global relay mesh to find faster and more consistent paths in real time. For developers, the benefit is straightforward: lower and more predictable latency across regions, better delivery consistency for live events, and no need to build their own global relay or routing layer from scratch. Clients connect via WebSockets, relays communicate over QUIC, and the system is built for fire-and-forget delivery rather than persistence or replay. I’d love your feedback on the positioning, use cases, and developer experience.