What’s the use case for that though? Nobody writes shell because they want a shell language. It’s written purely out of necessity because that’s the lowest common denominator installed on all systems. Something that Amber here provides a potential exit path out of.
Oil would have to reach a really critical mass before it can compete, which is sort of a catch 22 situation.
oil's idea is that you do want a shell language (e.g. if a lot of what your code is doing is job control and manipulating unix pipelines I can see shell being the best language to express that neatly in). you just want a better shell language than bash. but there is a ton of existing investment in bash itself and things like nushell their that away to start from scratch, and oil says what if we build a better bash instead.
Oil would have to reach a really critical mass before it can compete, which is sort of a catch 22 situation.