Developed and delivered an Ad-Free Energy Recharge patch for the Duolingo integration within the ReVanced/revanced-patches repository, focusing on enhancing the mobile user experience by removing ad interruptions during energy recharge. The work emphasized maintainable patch delivery, with clear and descriptive commit messages that ensured traceability and alignment with the existing patching framework. Leveraging expertise in Android development and Kotlin, the developer streamlined the recharge flow, contributing to improved user engagement and satisfaction. The patch was integrated following established documentation and engineering practices, demonstrating attention to code structure and maintainability while addressing a specific pain point in the user journey.