Introduction In today's mobile-first world, quick access to frequently used information is essential. Whether it's a vaccination card, membership ID, or digital business card, having instant access without opening an app can be a game-changer. That's why I built a Flutter application that puts your custom QR codes right on your home screen—available on both iOS and Android.   In this post (and the accompanying video tutorial), I'll walk you through how to create a cross-platf