itsPixle/Chairs ? reverse-engineered prompt

Build me a small hobby operating system kernel that boots in a virtual machine and shows a simple text screen with a working terminal.

I want it to let me type commands and have the kernel echo text back, and I also want a little Snake game I can launch from the terminal with a command like r snake. Pressing Escape should close the game and bring me back to the terminal. Make the boot process work cleanly with a GRUB menu so I can start it easily in a VM.

Keep it lightweight and simple, written in C with the bits needed to boot and draw text on screen. If you need to check current build or boot details, look up the right docs online. Make sure the whole thing can be built and run from the repo with clear instructions, and keep the experience close to a tiny custom kernel with a basic console and one playable game.