It's not much of a kernel. More like a self-contained bare-metal application. Main goal of a kernel is to provide services to applications. Although starting c

It's not much of a kernel. More like a self-contained bare-metal application. Main goal of a kernel is to provide services to applications. Although starting coding right away and getting tangible results is somewhat rewarding, it would be nice to see core concepts of designing a kernel mentioned in a "Kernel 101" article: * How to choose between monolithic/micro/nano architecture? * What are primary goals and use cases? * What hardware should it abstract away in HAL? * How to design userland-kernel and drivers-kernel API/ABI? * How much isolation is needed and what are ways to provide it?