I glued down the SD cards. I used a gel superglue because of how porous the back of the hardboard is. It looks nice and will keep the SD cards out of the way while the rest of it is wired.

Once the glue was set, I tested out replacing an SD card.
I also finished wiring up the buttons and joysticks for both controllers. I am trying to do a better job of cable management this time around, so I routed all the button wires between the rows of buttons and tied them together with a zip tie.
