Worked on enhancing display capabilities for the New 3DS within the libretro/RetroArch repository, focusing on graphics programming and embedded systems using C. Delivered a new display mode supporting 800px resolution and refined the handling of 800x240 modes, ensuring compatibility across New 3DS and non-2DS devices. The approach included backporting display settings from libctru, updating UI elements, and cleaning up legacy code to reduce maintenance risk. Stability improvements were achieved by replacing outdated tooling and updating configuration headers. These changes improved display quality, user experience, and maintainability, demonstrating technical agility across device-specific graphics and embedded software challenges.