I have a case developed for an 8x32 matrix flex panel. An ESP32 can be accommodated on an MRD076A Terminal. USB-C socket and USB 3.1 16 pin female to 2.54mm Type C can be installed. There is an initial module and more advanced ones. As a diffuser, I placed normal copy paper under the defuser frame. You can see the difference in the gif. The base frame snaps into place and needs to be glued. The rest is screwed together. On the further modules there are bushings for cables and 7mm holes to connect the individual modules with 6mm screws and nuts.