In comparison to Python-for-Android with Kivy, the main thing that jumps out at me is the use of native UI (Kivy has its own UI, with KivyMD for Material Design

In comparison to Python-for-Android with Kivy, the main thing that jumps out at me is the use of native UI (Kivy has its own UI, with KivyMD for Material Design theme). Is it possible to use Python libraries with C dependencies (it's possible with P4A if there is the suitable recipe)? What about the starting time compared to native apps? Is it possible to run a Python service in the background? Is there any collaboration done/possible with the great work made by Kivy team (Python-for-Android, Plyer, PyJNIus, etc)?