Given the rate at which the data flows -- nothing at all for a long time, then a burst that isn't particularly time-sensitive, then nothing at all again for a while -- I wonder if the right way to do something like this is with LoRA. That way the camera could be mounted someplace hard to access, with no need for a file system at all. There would then be a separate receiver module that could listen for traffic from multiple cameras and store it for later access by a PC/Mac/whatever.