[cies]

There's also this project:

https://github.com/redox-os/ion

It's intially build with RedoxOS (in Rust as well) underneath, but now also runs on Linux. Seems to be a bit more mature.

I wonder what sets these two projects apart, and/or if the devs of Casada know of Ion's existence.

[floatboth]

Cicada seems to be more POSIX-y, while Ion "it is not, nor will it ever be, compliant with POSIX".

What they have in common though… is that job control (Ctrl+Z) is not implemented yet :(

[eridius]

I've been giving thought lately to writing my own shell, because there's stuff I want to fix that no current shell does right, but job control is one of the big reasons why I haven't actually started writing code yet (namely, I haven't yet figured out how to reconcile the stuff I want to do with the need to let the user suspend or background tasks including shell scripts).