So I'm coming back to this project after a long time away from it and trying to remember where I left off. I have a semi-functional GUI, a very slow camera feed from my Raspberry Pi Zero W, and what is hopefully the final iteration of a PCB to make it all work. I do remember that the second slide switch to power on the board wasn't rated to handle the power that I'm using, so the contacts fused together when I switched it on. I've since replaced that switch with a much bigger one that I hope to build into a 3D printed enclosure. Stay tuned for more updates as I actually make progress towards this again.