>Two weeks before my starting date, my manager emails me to ask if there's any way I can do Android. I've solo made and published over 15 Android apps but I we

>Two weeks before my starting date, my manager emails me to ask if there's any way I can do Android. I've solo made and published over 15 Android apps but I went full Dunning-Kruger and now I think I know nothing about Android development. It is too complex. If manager asks me, I don't know Android. I can't imagine Android development can be known. If you ask someone if they know Android development and they say yes, be skeptical.