[rattray]

> If you treat shell as a DSL for files and streams, nothing can beat it.

That sounds exactly like the approach of this crate - easily let you use "the files and streams DSL" directly from a general purpose programming language (Rust). You get full access to shell, but only need to use it where it's useful.

I've done the same thing many times with Python, Node, and Ruby, just with template strings which isn't as pretty as this rust macro (even if the latter can be a bit mysterious)