Maintained by the sysprog21 team on GitHub , this is arguably the most famous entry point for beginners. It is updated for modern 5.x and 6.x kernels and offers a latest PDF version for offline study.
The ANSANJAY/KernelDev101 repository serves as a hands-on tutorial for novices, covering environment setup and basic module creation. Essential PDF Resources for Offline Study linux kernel programming pdf github
A popular project by 0xAX on GitHub that dives deep into the kernel's internal workings, from the boot process to memory management. While primarily a web-based book, community-made PDF versions are frequently shared within the repository's issues and forks. Maintained by the sysprog21 team on GitHub ,