Sébastien Doeraene

Rebased on top of the non-nullable reference types.

Oops, yes, it's `RandomTest`. At some point I also fought against `TryTest` and apparently it overcame my short-term memory when I created this issue. Fixed.

This issue never made it to `main`, in the end. We had worked around the issue with the `--turboshaft-wasm` flag, and now it's the default.

The build is now green. The code should be good to go. I have started some Readme documentation of the compilation scheme, to complement the code comments which are more...

> One thing @sjrd you might be able to provide that helps me, is a "suggested order of review" for the two new packages. (I was assuming `webassembly` should go...

I think opener resolves, unless it's a typo or something like that.

I believe I have addressed everything so far. * The `createJSError` fix was integrated in its original commit, to keep being a stand-alone. * I now squashed the change to...

I think I'm done with the README at this point. There are many more things I could write about, but they are more local, so comments in the code should...

I addressed the comments made on the code so far, as they might impact further review comments (notably in `Instructions`). I'll address the comments on the Readme later this week.

Latest comments addressed.