I quite like elvish (https://elv.sh https://elv.sh) for a non-POSIX compatible shell. It's by no means perfect, and it's not 1.0 so breaking changes are pretty

I quite like elvish (https://elv.sh https://elv.sh) for a non-POSIX compatible shell. It's by no means perfect, and it's not 1.0 so breaking changes are pretty frequent, but I find the language structure and syntax make it worth it. The docs on the site are a little haphazard too, but once you get a feel for it, you probably won't need to refer to them too often.