JJ0o0/Miyara ? reverse-engineered prompt

Build me a small educational x86 64 operating system in C and Assembly, something that can boot with GRUB and grow into a simple kernel project. I want a clean starting point that compiles, links, and boots reliably, with a basic kernel entry, early boot setup, and a simple way to print messages so I can see it working. Keep it beginner friendly and organized so it is easy to add more kernel features later. If anything is unclear, make sensible choices and look up current docs online if you need to. Please also make sure the build process is smooth from the Makefile, and that the project structure stays tidy for boot code, kernel code, headers, and any helper scripts or tools.