Worked on the taosdata/TDengine repository over two months, focusing on build system configuration, CI/CD, and documentation using C, CMake, and Markdown. Improved exception handling documentation to clarify strategies for data ingestion errors, such as handling missing tables or columns and database connection issues, which streamlined onboarding and troubleshooting. Addressed a compile-time bug by reordering header includes to ensure proper macro definitions, enhancing build stability. Upgraded dependencies to align with TDengine 3.0 requirements and updated installation guides for better clarity. The work emphasized robust build processes and comprehensive documentation, supporting both developer productivity and the reliability of the TDengine platform.