You can get lots of dev boards for existing SoCs. They have the problems of no PCIe, no SATA, etc that the n^parent was complaining about. If you want those fea

You can get lots of dev boards for existing SoCs. They have the problems of no PCIe, no SATA, etc that the n^parent was complaining about. If you want those features you first have to identify an SoC that has those; my claim is essentially that such pre-existing SoCs with the kind of features you want in a "developer box" are so thin on the ground as to be pretty nearly nonexistent. "Use a preexisting SoC" is what my classes 2 and 3 are.