[blinzy]

From my personal experience, at work we use C and not Rust because for really low-level code (e.g., kernel bypass, niche datastructures, real-time, etc.) I believe Rust would have to use "unsafe" due to work with raw pointers and other code that can't be easily, or at all, expressed otherwise. In such a scenario a lot of the advantages Rust supposedly brings are diminished or gone.

When that happens, considering that our company's knowledge/experience with C (or C++, although not my case) is vastly deeper than with Rust it makes no sense to choose it for any of that type of code we write, old or new.

Zig looks promising but it's still too soon to take any risk in adopting it; in 5 years time it may be worth revisiting it and see how it has matured...

Finally, software we may write but that gives us no competitive advantage over other businesses, sure that can be in Rust, Go, Java, Python, whatever.