xv6

4 people recommended it in 2 threads, 2017–2025.

What people on Hacker News said

jpfr

The source code and commentary of xv6, a simple Unix-like teaching operating system. By far the best book on operating systems I have encountered so far.

on HN, 2017

Where it comes up

The little book about OS development 2025 · 3 recommendations
Ask HN: What's the best computer science book you've read recently? 2017 · 1 recommendation