Set Default To "Square (1:1)" Image Capture & Save With React Native App?

I'm in the process of developing an iOS/Android React Native App that will allow me to take photos of incoming packages. However, currently photos are saved in 4:3 aspect ratio but I need the default to be a 1:1 "square" aspect ratio.

Is there a way to set the default image capture/save to be 1:1 "square"?

Thank you!