TIL. It's too late for this book, but I'll try it in the next one.

actually making a video game would be 100x more complicated. Plus kernel developer jobs are more lucrative than most game dev jobs.

I thinks this 1,000 OS book is a good start for beginners before diving into the MINIX book.

MINIX book describes more practical designs, with a more feature-rich implementation. However, UNIX features such fork, brk, and tty are not intuitive for beginners. By writing a toy OS first, readers can compare the toy OS with MINIX, and understand that UNIX-like is just one of many possible designs. That's an important perspective IMO.

Also, readers can actually implement better algorithms described in the MINIX book. It makes the MINIX book more interesting to read.

This is so much easier. You are implementing printf on page 5 and it can handle formatted output to the screen for integers, hexadecimals, and strings. Minix eventually gets around to the write system call but even then it is actually just a way of sending bytes from a buffer to a file descriptor. To a what? That is a lot more complexity for, in some ways, less functionality. For write, you still have to write printf on top.

The Tanenbaum book is great but it is a particle physics textbook compered to this OS cookbook.

LFS is about building a Linux distribution from scratch (i.e. using the Linux kernel.)

The book in question is about how to build your own operating system (i.e. a non-Linux) kernel from scratch.

> We'll implement basic context switching, paging, user mode, a command-line shell, a disk device driver, and file read/write operations in C. Sounds like a lot, however, it's only 1,000 lines of code!