wasm2c.js sources/build-routines are missing

script `tools/wasm2c.py` need node module `wasm2c" which is downloaded from but where is the source for that pre-compiled node module?

does not list any source reposotory.

The tarball includes a README.md which says that it "is an Emscripten build of wabt's wasm2c" but what are the build routines?

That included README.md seems to indicate that it can simply be replaced with the regular non-JS wasm2c executable, but that seems to fail (tried using the wabt 1.0.19-1 package in Debian unstable).

Please document how to bootstrap the wasm2c.js, or point to the external project where that is supposed to be documented.