Is there a way to establish a "supports-screens" kind of configuration to make my application available only for normal and large screens android devices.is there a way to do this with the build.py script?(i have bets on --intent-filters option but not sure how it might be used)
There is no way to do it from the build.py. However, you can change manually the templates/AndroidManifest.xml.tmpl and adapt it for your needs.
screen support in kivy set to normal and large screens