Ask HN: What would justify writing a kernel in 2026?
If you mean an OS kernel, it would be interesting to create a fully async kernel using async/await. I've only seen one project working on this.
What project was that?
via this discussion in HN: https://news.ycombinator.com/item?id=22729461 (2020) I found:
Writing an OS in Rust: Async/Await (2020) https://os.phil-opp.com/async-await/
Blogging about Midori: Asynchronous Everything (2015) https://joeduffyblog.com/2015/11/19/asynchronous-everything/
Does writing a kernel need to be justified?
One would be if you want to design it differently than the existing kernels do.
GNU/Hurd needs a microkernel
Because you want to?