Worked on the hectorqin/outline-client repository to refactor tunnel establishment, unifying the use of outline.Client for both TCP and UDP tunnels. The approach involved updating the tunnel creation logic so that a single outline.Client instance managed both stream and packet dialing, reducing dependency complexity and improving consistency in network traffic handling. This change enhanced code maintainability and testability by minimizing duplication and clarifying resource management. The work focused on client-server architecture and network programming, leveraging Go for implementation. No critical bugs were reported, as the improvements centered on architectural clarity, reliability, and simplifying the codebase for future development.