During June 2025, Larsy focused on enhancing the RimSort/RimSort project by addressing a critical issue with Steam integration on macOS. He resolved a bug where the steam_appid.txt file was incorrectly bundled, moving it outside the application bundle to ensure reliable Steam functionality. Leveraging Python and the pathlib library, Larsy refactored file management routines to standardize cleanup operations, improving code maintainability and cross-platform consistency. His work emphasized robust file handling and cross-platform development, laying a foundation for more reliable macOS packaging. This targeted engineering effort reduced user-reported issues and positioned the codebase for easier future maintenance and scalability.