[moonchild]

You are making the great-grandparent's point (with which I was agreeing). Their concern was not only the cruft built up in the POSIX API, but the many layers of abstraction and behemoths of code that depended on said cruft, making it a compatibility nightmare to ever remove. That comprises the web browser that drives chromeos's apps; the java runtime that drives android apps; the language runtimes that drive serverless apps.

IoT is even more of a niche than desktop.

And, I think you underestimate the amount of software written in c, directly against posix.

[pjmlp]

I don't underestimate the amount of C code written against POSIX, luckly the last time I did it was in 2001.

Since then, language runtimes have spared me the effort, and I am not alone.