While writing a kivy app that uses java api calls through pyjnius, can you run the code on your system's OS like windows, Linux etc. to see how far you've gone and test your progress OR you can only test the code on an android device
Pyjnius works on the desktop, but the Android APIs are not available there so you can't test your Android API calls that way. For this reason, there's not much reason to install pyjnius on the desktop if you're targeting Android.