The suitcase is sitting on top of a laptop which runs the software. The laptop is connected to an Arduino which is connected to some sensors. Here's the logical architecture of the project diymagicmirror.com/files/magic-mirror-logical.jpg
This installation was for a Hotel where the Magic Suitcase among other things, speaks the Weather Forecast to the Guests.
Step 1: The Case
A jigsaw was used for the oval cutout. A standard LCD mounting bracket was used to mount a 15" LCD monitor to the back of the case.