Every time I get a gadget I think of building something for it. Since I've gotten a Sony A6000 things are not different, particularly because I have some issues with the default Sony Android app requiring GPS location (and insisting not to work without it).

Therefore, I would like to build an app which makes various permissions optional (e.g. storage access, GPS) and another one to allow me to add some metadata to images on the fly (ideally). While investigating, I stumbled upon the following resources:

HTH,