Fantastic work! This makes for a great resource to dive into OS dev. There's a lot of detail but it's easy to digest. I suggest slightly revising the end of not

Fantastic work! This makes for a great resource to dive into OS dev. There's a lot of detail but it's easy to digest. I suggest slightly revising the end of note #2 for chapter 2 to reflect that some async paradigms in programming languages are cooperatively multitasked. Within a process, it's generally considered safe to utilize cooperative multitasking (desirability is a different question), although I believe Erlang sticks with preemption for robustness.