Building an x86-64 operating system from scratch in C++. Bootloaders, memory management, scheduling, and everything in between.
Before writing a single line of kernel code, you need to understand what 'freestanding' means, get a cross-compiler, set up a build system for bare-metal targets, and establish an emulation workflow. This post covers all of it.
We built AlkOS, a monolithic x86-64 operating system kernel in C++, and got Doom running in its userspace. This series turns that work into a practical map: what to build, why each piece exists, how the pieces depend on each other, and where beginners usually lose the thread.