Explore the innovative Gio library for creating cross-platform GUI programs in Go during this 23-minute conference talk from GopherCon 2019. Discover how Elias Naur presents Gio's unique design approach, which enables developers to build immediate mode GUI applications that seamlessly run on Android, iOS/tvOS, macOS, Linux, and Windows. Gain insights into the library's architecture and learn how it achieves simplicity, portability, and performance across multiple platforms using 100% Go code.