On an amd64 running OpenBSD 6.4 in the console: doas kbd us.dvorak <unplug your USB keyboard and plug it back in>
You will find the layout is not dvorak anymore and is qwerty instead. This also is a problem if you don't have a keyboard plugged in on boot. The /etc/kbdtype containing "us.dvorak" gets ignored when plugging in a USB keyboard and will default to qwerty. -- -alfred
