User input is foundational to build an app that lets a user actually do something, and there are a lot of moving pieces between when a finger moves and something in your UI changes. This in-depth talk will peel back the layers of Jetpack Compose's input system and detail how it builds on top of Android's input system. Learn how pointer hit tracking, gesture recognition, different pointer types and input devices all come together to power the foundational components we use every day beyond the simplest cases, and how you can build on top of these systems with your own components to provide a rich user experience regardless of what device and input methods they prefer.