During March 2026, Hongrui Chen enhanced the Card Carousel user experience and stability for the Skyscanner/backpack-ios repository. He addressed swipe index edge cases and improved infinite scrolling reliability by refining internal index handling, while also resolving layout issues by standardizing on HStack for more consistent image rendering with SKYAsyncImageView. Hongrui introduced state snapshot recording, enabling persistent application state capture to support debugging, analytics, and UI testing. His work leveraged Swift, SwiftUI, and unit testing to deliver robust UI improvements and better instrumentation for quality assurance. The depth of these changes provided a more reliable, testable, and maintainable iOS codebase.