> Bring back the joy of shell scripting.
There was joy?
Seriously though, this actually doesn't look half bad. The problem is you can easily achieve the same thing in basically any standard scripting language (Typescript, Python, etc.) just by replacing backticks with a function call.
Actually in Typescript you can use tagged string so it could just be one extra character if you want:
let result = x`ls -l`;
Is saving that one character worth using a niche language?