While I'm waiting for the new PCBs with two different approaches to buttons, I decided to start writing some code. But I need to test it somehow, and it's difficult with the non-functional buttons, so I decided to use a combo of the #D1 Mini X-Pad Shield and #D1 Mini Matrix Shield. Sure, the x-pad shield uses a different chip than what I will use, and the matrix shield only has 1 shade of 1 color, but at least I can get some code going on them. I can later replace the parts that handle the display and keys.