The OneCard app required a redesign due to user challenges in navigating offerings and a disconnect between the physical metal card and the app. Our UX research revealed these insights, prompting us to reimagine the app's information architecture and visual design. I contributed to creating a UI that matched the card's metallic finish. Additionally, the lack of a design system led to asset duplication and inconsistencies, so we developed the Alloy Design System. This system unified design elements with a metal theme, incorporating sounds, haptics, animations, and icons, and featured both light and dark themes for accessibility. The project was named Project Alloy.