Yeah I've just installed it and seen eg. the autocompletion on ls isn't how I'm used to. I will keep playing around and watch for progress because I really like the idea.

I especially see this being useful in my CI environment which has a handful of functions, some json and yaml parsing (using jq and python respectively), etc. It's a little cumbersome at the minute but not so much to switch from bash and the rest of the project is JS anyway so it would be good to be consistent.