I hope this won't at all interfere with cl-launcher and/or Flashlight Extra (I use cl-launcher, but gotta not make the common mistake of focusing on only the software that matters to me)?

So, when you say "configurable", do you mean just a on/off toggle for whether camera lens and camera button launch it? Or full blown cl-launcher style configurability, where you can chose to either have the camera-ui, another program, or a pop-up list of programs to chose from, get launched? (I'm thinking, simply the first is fine. Then cl-launcher and flashlight extra should still work fine with the normal camera-ui and this one, since they respond to the camera lens opening, and then send a kill command to the camera-ui process before it can load, as I understand it.)