Just tested a build i made locally from your branch, on the A7Z build, build with the latest Debian + XFCE Nice job @Nick A.
Seems to work fine, but it's lacking GPU acceleration, in both Chrome and VLC, same as the official builds.
Do you have any info on that? Is there any work going on the Armbian team for supporting the Imagination GPU? I know Imagination has pretty shitty software support.