I think the main reason original LiveView is so great is that it fits really well into the Erlang/Elixir/Phoenix ecosystem. Love to see the idea spreading though!
Agreed on both fronts! I think there could be any number of different back-ends for Phoenix apps not just Elixir (Phoenix) and Typescript (LiveViewJS). One insight I had as I was building this is that Phoenix apps are actually based on a wire protocol and if that protocol was well-documented, you could see lots of different implementations across any number of languages. Would love to chat with Phoenix folks about that if interested...