Awesome, I just upgraded our project! We're using wasmer in a browser-based multiplayer game in order to get cross-platform floating point determinism so we can send only input packets over the wire confidently without worrying about state drift. The client and server run the exact same wasm bundle instead of just being compiled from the same source, and the wasm spec guarantees that as long as you don't touch NaN and stick to one thread, you'll get the same results in any runtime [1].
[1] https://github.com/WebAssembly/design/blob/main/Nondetermini...