s-matyukevich/raspberry-pi-os ? reverse-engineered prompt

Build me a step by step learning project that teaches how to write a tiny operating system for a Raspberry Pi 3 from scratch, using C and a little low level assembly where needed.

I want it to feel like a hands on tutorial, not just docs, so each lesson should explain one core OS idea in simple language, then show the matching code, and also briefly compare it with how Linux does the same thing. Include a few practice exercises after each lesson, and keep the source organized so I can see the project grow over time as new features are added.

Start with a basic hello world kernel and then work up through CPU setup, interrupts, a simple scheduler, user processes and system calls, and virtual memory. Make it easy to follow for someone who is learning OS development, and make sure it’s all focused on Raspberry Pi 3. If you need to check current build or boot instructions, look up the latest docs online.