Worked on the google-research/android_world repository to optimize receipt font loading within the receipt generation workflow. Focused on backend and utility development using Python, the work involved refactoring font handling to load font objects directly through a get_font method, replacing the previous path-based approach. Implemented font caching in user_data_generation.py to minimize repeated I/O operations and accelerate rendering, while also adding a fallback mechanism to a default font to prevent rendering failures when specific fonts are unavailable. These changes improved the reliability and maintainability of the receipt generation process, reducing runtime errors and enhancing the overall user experience at scale.