v1.0
It all works! Requires separate left and right half firmware, only because the diode direction is flipped on the other half.
See:
https://github.com/sadekbaroudi/qmk_firmware/blob/master/bin/build-bgkeeb-default.sh
https://github.com/sadekbaroudi/qmk_firmware/tree/master/keyboards/xoiviox/bgkeeb