Worked on the Unity-Technologies/mono repository to enhance debugging and documentation for Windows 64-bit builds. Focused on improving MonoStackFrameDetails by adding assembly name capture, which resulted in more informative stack traces and supported better diagnostics for developers. Updated the Windows 64-bit build documentation to reference the correct script, ensuring that the build process remains accurate and maintainable. Utilized C and Perl to implement these changes, drawing on skills in build systems, debugging, and documentation. The work contributed to ongoing maintenance goals by improving developer productivity and reliability through clearer stack traces and up-to-date, accurate build instructions.