[Arm-dev] Implementing on beaglebone black.

Hello, I am looking into putting Centos on my Beaglebone Black, and I came across your rootfs factory. I'm wondering how it works and what is the high->low level of implementing. Do I need an existing arm binary system? Currently Beaglebone black comes with debian, and my desktop is debian, how would I use your scripts, to make the initial image? The end goal is to have a centos system with Selinux enabled.