What do you think about this offer?
That should be a good board. Same cpu as a nano pi m4. Seems like a good deal. And while it can't boot from ssd, I'm pretty sure it can boot from emmc2. The biggest problem is there is no official support from Armbian and no bullseye (omv 6.x) image in the archives - https://armbian.hosthatch.com/archive/rockpi-4b/archive/