During December 2025, Notletoff developed and integrated a new atmospheric music track for the SuperTux/supertux repository, focusing on enhancing the Hollow Earth level’s audio environment. Leveraging skills in audio engineering and game development, Notletoff composed and delivered the deeply_rooted.ogg asset, ensuring seamless level-wide integration using Scheme for scripting and asset management. The work emphasized disciplined commit hygiene, with clear and descriptive messages to streamline collaboration and maintain repository clarity. This feature improved player immersion and contributed to a richer, more consistent audio ambiance across the game, demonstrating thoughtful asset integration and attention to the overall quality of the user experience.