minios-linux/minios-live ? reverse-engineered prompt

Build me a simple project that can generate a bootable MiniOS ISO image from scripts. I want it to be easy to run from the command line, with clear steps for building, updating, and packaging the ISO so someone can make a portable MiniOS system without having to figure out a lot on their own.

The result should feel like a polished Linux live image with a graphical desktop, and the build flow should include whatever is needed to assemble the image, manage modules or extras, and produce the final downloadable ISO. If there are useful docs or current build requirements I might need, please look them up and use the latest info. Add helpful commands, sensible defaults, and make sure the build process is explained well enough that a beginner could follow it.