The idea is to use the browser extension to manage your private key and your pubkey... You will need some sort of chrome based browser like Brave. Then you can get nwc.getalbycom for the one tap zap feature. This is all done through a browser not your cell phone app. Once you get that dialed in you can log into your mobile app with the same key you used on get alby.

Honestly that was the hardest thing for me to get.