Philip developed non-touch accessibility enhancements for BookMap and PageBrowser in the koreader/koreader repository, focusing on improving device compatibility and input handling. He refined focus management and input logic to ensure reliable navigation for users on non-touch devices, addressing accessibility challenges and broadening the application’s usability across diverse hardware. Working primarily with JavaScript and Lua, Philip concentrated on UI and widget development, integrating his changes to support a wider range of input methods. His work, delivered as a feature and merged for broader testing, demonstrated a targeted approach to reducing usability friction and increasing accessibility for non-touch device users.