First of all, thank you so much for your guide. I was able to turn a $20 Android TV box into a PiHole.
However it's been giving me errors which I suspect are due to the SD card, and so I would like to install to emmc.
Running sh install-aml.sh says UNABLE TO FIND ROOT OF THE RUNNING SYSTEM!!!
I am currently booting it with meson-gxl-s905l2-ipbs9505.dtb. Is this impossible to write to emmc?