As I was starting on the schematics, I realized there was some extra space around the edge that could be utilized. But for what? I have free GPIO from the Pi, but not a whole lot of room to play with. I was thinking maybe a few LEDs for status indicators, but I think user interaction would be better.

These are the smallest buttons I could find, and they still may not be small enough, Idk yet. I have to break out the calipers, that's how close I'm cutting it. The stated 3mm width would be fine, but a look at the datasheet shows that the pads on either side extend further, making the footprint more like 4mm:

This is just enough to make me doubt if it's possible. I can tuck one of the pads under the screen, but the other would have to be as close to the edge of the board as possible.

Do I even need buttons? If I have one, then I at least need two more to have any sort of usable UI, and in all likelihood the Pi this board is attached to will have a keyboard. But what if someone wants to use it standalone? What if I decide to put it on an Arduino? I think flexibility for unforseen future uses is an important part of design. I'm gonna go play with the calipers and see what I can come up with