I thought I could get around the external monitor limitation with #AirPlay, but it turns out you CAN'T ROTATE AIRPLAY MIRRORS. Also, they can't be 4K, so I can't even use my #Windows machine to stream the #Mac to the monitor it doesn't play nice with unless I want everything to be blurry.

My next step is going to be to install #Parsec on the Mac and have it render a BetterDummy display. I didn't want to have remote-control software on this laptop but it's either that or nothing.