Worked on the hrydgard/freetype repository to enhance cross-platform stability by addressing build warnings specific to Cygwin environments. Focused on C programming and build systems, the work involved introducing __CYGWIN__ preprocessor guards in two header files that manage compiler-specific and public macro definitions. This targeted fix suppressed visibility attribute warnings without altering existing functionality, resulting in cleaner builds and improved reliability for continuous integration pipelines on Windows-like systems. The approach demonstrated attention to cross-platform development challenges and contributed to a more maintainable codebase by ensuring compatibility and reducing noise during compilation across different operating environments.