Camera front. The shutter is as low-tech as everything else: a promotional refrigerator magnet with a thin slit cut down the middle. Quickly sliding it left and right will achieve fractional second shutter speeds. Even so, I expect exposure to be all over the place. (It's about a fixed f/8.) Improvements to this design will probably be in order.
Also visibile here is the film advance (bent paper clip) with instructions to wind counterclockwise, and count off twelve "ticks" to advance to the next frame. (As the film moves, the sprocket holes audibly strike a ticker.)