“Most books and courses introduce Linux through shell commands, leaving the kernel as a mysterious black box doing magic behind the scenes.
In this post, we will run some experiments to demystify it: the Linux kernel is just a binary that you can build and run.
The experiments are designed so you can follow along…”
The Linux kernel is just a program
https://serversfor.dev/linux-inside-out/the-linux-kernel-is-just-a-program/