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.