You just had to post details. I have wanted a camera (or two) around here for ages. We had a shooting about 500 yards from our back door a few months ago while my son was standing outside. You could say the neighborhood is not ideal.
I also like the idea of using one as an ad blocker using pi-hole . Tom was telling me he runs it with great success. Incidentally, he was here to help my brother move...he flew over from England....to help him move. Crazy Brit.
You really can get away with mounting one of these to the side of a wall:
But then you have to wire it with a 5 volt power supply somehow. I got away with just mounting it inside a vent so that the actual pi is inside the garage and the camera its just clipped to the housing.
You can go overboard with a case that costs more than the pi itself:
I kinda like this guy's solution:
I like the last idea. You could probably make an argument that it would be more efficacious as a deterrent (assuming that is part of your end game) if it is clearly visible.
Maybe add a sign that says, "You are on camera. You can smile...or not, I do not give a %&*$."
If I am honest, I am so paranoid I would probably have fifteen of these stupid things inside and out if I was not aware of my neurosis.
You need to figure out how to use a battery strapped to this thing to get an idea of how long it would run before it had to be changed. Make it so.
I think a 10000mah battery will run it for a couple days.