Mohamed Waled Farag worked on the keiyoushi/extensions-source repository, focusing on updating and maintaining extension endpoints for Onma Arabic and Hwago Indonesia. He corrected the base URLs to ensure accurate domain routing and incremented version codes to reflect these changes, directly improving extension reliability and user access. His technical approach involved careful URL formatting and cleanup, using Kotlin and Gradle within the Android development ecosystem. While the work was limited in scope to a single feature over one month, Mohamed demonstrated attention to detail in versioning and endpoint management, contributing to the ongoing stability and maintainability of the extension infrastructure.