misc@, Do you try to run OpenBSD on MacBook Pro 2018? I did it yesterday with the snapshot and it's almost not usable.
1. Booting from USB drive requires significant time. It needs about 7 minutes to finish the first line: booting sd0a:/bsd:... 2. Adding firmwares (probably amd one is enoug) hungs the system to the black screen. 3. I can use keyboard on boot> prompt, but it doesn't work after system is booted, nor touchpad. Do you know any quirk to bypass this issues? If you interested, here the full sendbug, I not sure that it worth it to send to misc@ due huge size: https://kirill.korins.ky/pub/macbook-sendbug.txt -- wbr, Kirill