My product is unique because it is not a product. Like it is mentioned in the article. I don't care about monetization, I just want a good trustless p2p vpn that anybody can use. In the future even normies will be able to. I am working on an android/ios app (ios not yet but in the future) to at least share my clipboard with my computer or send images. Which seems trivial but you dont have a really good (not battery consuming) solution for android<>macos.

Anyway. Rayfish is p2p no central coordination needed. Other's do need some central coordinator. The main disadvantage one might find is that it uses iroh which is built on top of QUIC. Tailscale and others use wireguard, which is nice and compatible with legacy VPNs. Also they have a kernel driver which we dont. It's all userspace. I didn't want to reinvent the wheel.