This look very promising.

We are increasingly using a subset of typescript in our backend so as to be amenable to a tool, in the long run, which can convert the ts subset to rust source code.

This project will enable an alternative of that vision earlier - except of course without the parallelism.

Also I am curious as to whether this will compile to a static lib which can be linked to an existing cpp app to be run on android/ios targets. In theory it should be able to. The docs mention ffi, but I didn't dig deep.

Does that tool already exist, so do you have a specific TS subset in mind you are aiming for? Or you are simply trying to use fewer complex features?