Liumingxun contributed to two open source projects over a two-month period, focusing on both documentation and core logic improvements. For ktorio/ktor-documentation, Liumingxun enhanced API documentation by clarifying the use of optional path parameters in server requests, aligning examples with REST best practices to improve developer onboarding and accuracy. In Tencent/tdesign-common, Liumingxun addressed correctness issues in large-number arithmetic within the inputNumber component, refining zero handling and negative subtraction logic. Using TypeScript, HTML, and Kotlin, Liumingxun also expanded unit test coverage to prevent regressions, demonstrating a methodical approach to both user-facing documentation and backend reliability.