Also it's open source (Apache/MIT) and I don't see a CLA, so I would say it's good.
It is a great time to learn Rust:
https://www.rust-lang.org/learn
It continues to see adoption in places where C and C++ were the primary choices.
It is exciting to see it in the microcontroller OS space.
If you make a website listing the languages you do understand, people who are concerned can consult it before they begin a project.
> intentionally designed to yield hard to read code
I think if you assume that syntax you find odd/difficult was intended to confound you, I can safely make assumptions of my own.
I understand complaints in other contexts: for instance, if one sends tens of thousands of satellites or burns forests, the mere fact that they are doing it may bother me. But again: what do you care if somebody writes a software project in a language you don't like?
Same for your own project: don't become dependent upon a project that you don't want to have to deal with... If you do, then don't go complain about it: you made the choice to depend upon it.
If I want to modify it, I prefer it to be in a language I understand. The syntax of C/C++ is incomprehensible to me.
See? Anyone can do it. That genre of argument is meritless.
Most current embedded and RTOS operating systems and development toolchains are just horrific. Hence, most of the things around us that control important things, depend on much weaker foundation that you'd like to imagine.
They love Zephyr because it helps them solve their problems. That it is a pain in the ass for developers isn't something they seem to spend much time thinking about. Or even seem to be aware of the importance of.
I don't get you anti-Rust zealots.