Passkeys are here to make sign-in safer, smoother, and more user-friendly, and Android is ready for them. But like with any new API, getting everything set up can take some digging. In this talk, I'll walk you through exactly how to implement passkeys in your app: setting Digital Asset Links, associating your app with a trusted domain, handling registration and sign-in flows, and even making passkeys work inside WebViews. If you're planning to support passkeys, this session will give you a clear roadmap, practical tips, and some lessons learned the hard way so you don't have to repeat them.