[Sirened]

I had to do something similar for building out an automated hardware test cluster of ARM devices for OS testing. We settled on a bunch of varied SBCs (we were less concerned with peripherals than we were different SoC features/configs). Every SBC we found supported ARM CoreSight over some external pins (and, for better or for worse, had no way of disabling it) and so we were able to just wire them up to a test host so that it could supervise and capture detailed panics even when we had very early "dark" panics. It's a really neat setup and it's been great for productivity too since, as mentioned in the post, you can use the test cluster as remote dev hardware and test on real silicon from your desk without needing to lug around test boards, a bundle of debug cables, and wasting all your laptop's ports just to boot hardware.