My experience with Matrix is that the federation itself is a deal breaker. I have a pretty beefy server and good connection which was getting ddosed by running Matrix and timing out on so many requests for avatars/profiles etc. Maybe I did something wrong, but the whole experience rendered me quite skeptical to the viability of it as a federated chat.

That said I’ve had nothing but good experiences using it with big servers set up by pros.

But there is no such implementation AFAIK? How is it making Typescript faster if it’s a completely new implementation?

But certainly, in theory it could become unshackled from JavaScript. Have there been any serious attempts to do so though?

I feel this should be obvious to anyone who knows anything about programming, because typescript is just a development tool not a runtime.