I’m no expert but here I am thinking out loud.
I saw an article how to create your own cloud using Raspberry Pi Nano Cloud.
I’m not sure if you can direct your camera to point/upload to your own cloud (I’m guessing not) as I think you’d need to be able to edit the firmware for this to happen.
Again, way beyond my knowledge but I do see where you can create your own cloud.
Me personally, I like to have my data within physical arms reach.
Anyways, food for thought.