During December 2024, H. Sang focused on stabilizing Android Text-to-Speech functionality within the anxcye/flutter_tts repository. He addressed Android-specific crash scenarios by ensuring the engineResult object was not prematurely nulled after initialization and implemented safeguards against null pointer exceptions in result handling. Working primarily with Kotlin and leveraging his expertise in Android development and Flutter plugin integration, H. Sang delivered targeted hotfixes that improved reliability across devices. Although the work centered on a single bug fix rather than new features, the depth of analysis and careful handling of platform-specific issues contributed to a more robust and stable TTS experience.