Hossin Asaadi developed and integrated online user statistics tracking for the XTLS/Xray-core repository, enabling real-time monitoring of active users and their IP addresses through a dedicated API. He extended this functionality by updating XTLS/Xray-docs-next, adding a policy-based configuration option and providing bilingual documentation to support global teams. Using Go, Protocol Buffers, and system monitoring techniques, Hossin ensured seamless integration with existing stats management systems. He also addressed stability issues following a gVisor upgrade by fixing TUN interface behavior and UDP connection handling, demonstrating depth in dependency management and networking. His work improved observability, reliability, and operational transparency.