Implementation time is basically nothing. People have been doing this on iOS for 3 years now: https://www.youtube.com/watch?v=9l7Y4UcTd1k https://www.youtube.co

Implementation time is basically nothing. People have been doing this on iOS for 3 years now: https://www.youtube.com/watch?v=9l7Y4UcTd1k https://www.youtube.com/watch?v=9l7Y4UcTd1k And similarly I've been playing with it on Android, although I found the camera wasn't even really needed: https://www.youtube.com/watch?v=dtWiTIJFkrw https://www.youtube.com/watch?v=dtWiTIJFkrw