H/W components don't share state, which is why H/W parallelism easier. Where they do interact with each other, we have to either design fully async logic or worry about metastability. In contrast all kernels are basically all about sharing state. Even in user code and even when, a language such as Go provides channels, a lot of people seem to use shared state (and mutexes and locks).

I am curious as to how your h/w experience makes it easier hacking on the linux kernel....