Rheanazzaren focused on enhancing the XTLS/Xray-core repository by implementing cross-platform TUN inbound support, specifically targeting macOS through the integration of DarwinTun. This work enabled the creation and management of TUN interfaces on macOS, aligning its behavior with other operating systems and advancing feature parity across platforms. Using Go and leveraging expertise in cross-platform development and network programming, Rheanazzaren addressed the technical challenges of macOS-specific TUN operations. The solution improved both developer productivity and end-user experience by broadening deployment scenarios. The codebase was strengthened with clear commit documentation, contributing to maintainability and setting a foundation for future cross-platform enhancements.