Geerling covers this in the accompanying video for this post. He couldn't get it running due to no working OS images being obtainable.
Took awhile to land on it though. Before that I tried all of the other distros on Pine64's "SOQuartz Software Releases"[2] page without any luck. The only one on that page that booted was the linked "Armbian Ubuntu Jammy with kernel 5.19.7" but it failed to boot again after an apt upgrade.
So there's at least one working OS, as of last week. But its definitely quite finicky and would probably need some work to build a proper device tree for any carrier board that's not the RPi CM4 Carrier Board.
The killer feature for their go fund would be is if they sourced a batch of pi compute modules ...