I use a macbook pro with two dell monitors are work. Unfortunately, MacOS seems picky about remembering the display orientation of two identical monitors. If I don't plug them in in the same order and port each time, it mixes up which one is in portrait and which one is in landscape.

Which is frustrating.

So I took my calipers to work, measured the USB-C to display-port cables I was provided, and made something in OpenSCAD to make my life a little easier.