valivalivali/x-os — reverse-engineered prompt

I want you to get this experimental x86 64 microkernel OS project working end to end so I can build it and boot it in QEMU on a Mac, ideally Apple Silicon. Please wire up whatever is needed so the build is reliable, the bootable ISO is produced, and the system launches into the current desktop style UI with the compositor, top menu bar, bottom dock, and the Xplorer file manager app.

Keep the kernel minimal and keep the user facing pieces in ring 3 talking over message passing, since that seems to be the whole point of this project. If anything is broken, missing, or only half connected, finish it in the simplest way that matches the existing vision. I also want the normal make flow to work cleanly, including setup, build, run, and UEFI boot if possible, plus the disk image behavior.

Please leave me with a short README update that explains how to install the required tools, build it, run it, and what should appear on screen. Look up current docs online if you need to.