Ryan Donnelly enhanced the GameBoard page in the forceteki-client repository by implementing a dynamic viewport height (dvh) layout, addressing mobile usability challenges where browser UI elements affect visible screen space. He transitioned height calculations from traditional vh units to dvh, ensuring the game board consistently fits the available area as browser chrome appears or disappears. Using React and TypeScript, Ryan focused the update on a single page to minimize risk and facilitate rapid deployment. His work demonstrated attention to responsive UI design, code maintainability, and traceability, resulting in a more stable and reliable gameplay experience across diverse mobile devices.