During December 2025, Trung Nguyen focused on improving the gronxb/hot-updater repository by addressing Hermes binary path compatibility for CocoaPods on macOS and iOS. He resolved an issue where React Native 0.82+ projects could not locate Hermes binaries due to distribution changes, which previously caused ENOENT spawn errors. By updating the hot-updater to reference the Hermes compiler within the CocoaPods directory structure, Trung ensured reliable integration with React Native’s evolving build process. His work leveraged TypeScript, React Native, and CocoaPods, demonstrating a deep understanding of iOS development workflows and addressing a nuanced compatibility challenge in mobile update infrastructure.