WebAssembly is a dead end. I don't get the hype nor the interest. People tend to forget the huge number of systems out there with tons of active development in C and early versions of C++. Those systems is what Rust would be good for, not "WebAssembly". The vast majority of workhorse code is on the backend, not the front end and UI. I think the only people interested in WebAssembly are former PHP/javascript coders wanting to actually make their code something that runs properly rather than crawls.