[WIP] runtime/js: js for emscripten - #1180

python@3.12 3.12.11 is already installed and up-to-date. To reinstall 3.12.11, run: brew reinstall python@3.12

libffi is keg-only and must be linked with `--force`.

libuv 1.51.0 is already installed and up-to-date. To reinstall 1.51.0, run: brew reinstall libuv