About couple month ago, I was tinkering with the SwiftWasm toolchain and Embedded Swift.
known problems:
Binaries compiled with SwiftWasm WASI are very large.
Embedded Swift comes without "batteries", i.e. no libc and missing system components.
It made me think to try using the Emscripten SDK as a libc provider.
With some additional JS code and swift packages, I created this code sample with clone of flappy bird.
I have not yet figured out how to nicely package the additions that make the project work.
I thought sharing here might create some interest and solve problem for somebody.