https://op.oils.pub/aports-build/published.html

We also don't appear to be unreasonably far away from running ~~ "all shell scripts"

Now the problem after that will be motivating authors of foundational shell programs to maintain compatibility ... if that's even possible. (Often the authors are gone, and the nominal maintainers don't know shell.)

As I said, the state of affairs is pretty sorry and sad. Some of it I attribute to this phenomenon: https://news.ycombinator.com/item?id=17083976

Either way, YSH benefits from all this work