Reverse engineering the MacBook clamshell mode

from blog Copper • A blog about conductive layers, | ↗ original
You just got a large, Ultrawide monitor for your MacBook. You hook it up and marvel at the amount of pixels. You notice you never use the MacBook built-in display anymore, and it nags you to have it in your lower peripheral vision. Closing the lid is not an option because you still use the keyboard and trackpad, maybe even the webcam and TouchID...