[KerrAvon]

What's the tl;dr on why one would use Yash vs anything else? ReadMe doesn't really explain what's unique here.

[klysm]

Might not be a goal of the author. Maybe they just wanted to make a shell :)

[Lammy]

You probably shouldn't. Some times it's just fun to write a shell.

[potus_kushner]

It's a comfortable, feature-rich interactive shell like bash, but with a relatively clean and small codebase, and the binary is only a third of bash's size. It's also much easier to build from source. Sort of a suckless bash replacement. Not compatible to most bash features though, focus is on POSIX compatibility.

[0xbadcafebee]

Not sure, but it says it's the most POSIX-compliant shell. Sometimes you have a requirement for a project like "must use a POSIX-compliant shell". If all the other existing shells are only mostly POSIX-compliant, then you'd want Yash.