Booting Gentoo livecd (liveGUI) into "Kiosk" mode

In a previous blog entry , I talked about booting the Gentoo ISO image directly from the disk, without using a CD/DVD or even copying the image to a USB stick. This is a followup to describe how to boot up Gentoo into a purpose built "kiosk" mode rather than the generic "KDE Plasma" GUI. I'm going to first show how to boot Gentoo with a "nox" option in the GRUB entry and then set up the .xinitrc…