Over a two-month period, contributed to gameplay and reliability improvements across two repositories. In ss14-harmony/ss14-harmony, developed and integrated a new Utility Knife item, implementing custom sprites, sound effects, and item configuration using C# and YAML. The feature introduced a retractable box cutter with slicing capability and balanced damage output, expanding player options while maintaining game balance. Later, in SerbiaStrong-220/space-station-14, addressed a critical onboarding workflow by adding user-facing error handling for crew manifest loading failures. This C# and UI/UX-focused fix improved user feedback, reduced silent errors, and enhanced traceability, demonstrating attention to both feature depth and user experience.