I remember reading it some time ago, and I gave it another pass, but it seems the only existing solution is WebRTC which, as the author himself admits, is extre

I remember reading it some time ago, and I gave it another pass, but it seems the only existing solution is WebRTC which, as the author himself admits, is extremely complex for the needs of a simple game. And netcode.io, the solution developed by the author, which has a major drawback: it needs the installation of a browser extension to work (only chrome supported at the moment). All things considered, WebSockets still seem to be way to go for most use-cases.