It can be used when you just want native, low-level WASM features. It is often better when you don't want complex WASM interoperability interfaces of other lang

It can be used when you just want native, low-level WASM features. It is often better when you don't want complex WASM interoperability interfaces of other languages. This help your code keep clean. Its minimal runtime can be run outside of browser easily. Even Rust requires complex interfaces, requires big runtime binaries to run on WASM, and it sometimes is not portable that it can run only on browsers.