LGTM. I don't personally have a setup to verify/print these designs. But I have no issue adding these to the repo. @SeedSigner thoughts?

I am extremely grateful for @blackcoffeexbt for making this PR and for his very high quality design. My only question is on the installation location for the camera. Have any modifications been made to widen the front-to-back spacing for the stock camera board? I have printed the simple pill and done a couple of builds, and each time I have had to use a dremel to shave down the camera board to be able to install it. Having assembled hundreds of SeedSigners, I feel as though the current open pill has hit the sweet spot for this front-to-back clearance. The camera board doesn't necessarily have to snap in tightly, as it will generally be held in place by the Pi Zero. I wish there wasn't so much variance in the sizing of those camera boards, but feel like we should accommodate for it without users needing to potentially try to modify their camera board. Open to your thoughts @blackcoffeexbt and thank you again for being willing to contribute this design, a lot of people are going to get a ton of use and enjoyment out of it.

I just completed a test print and the fit is perfect. Immensely appreciate @blackcoffeexbt for open sourcing this design. (Changes target to the dev branch to make sure files can be easily found by anyone coming to the repo to look for them)