These are the basic needed files and folders to build CachyOS system.

• Uses the same signature that normal repo and has no mirrors package to install.

sudo pacman -Syy

Install necessary packages

sudo pacman -S archiso mkinitcpio-archiso git squashfs-tools --needed

Clone:
git clone https://github.com/CachyOS/CachyOS-Live-ISO.git

cd CachyOS-Live-ISO

Build

./30-build-the-iso-the-first-time.sh

if you want rebuild

./40-build-the-iso-local-again.sh

The iso appears at out folder