D mentioned on Rust discussions site

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On Sunday, 24 May 2020 at 16:05:38 UTC, The Holy Drinker wrote:
> I haven't used it, but here's an OS written in Rust, 
> https://www.redox-os.org/. Zig will probably be used to write 
> one, too. I wish I could say the same for D, but the former two 
> languages have mind-share, and developers are enthused by them.

There is a kernel written in D:

https://github.com/PowerNex/PowerNex