In February 2025, Min Sun enhanced the qor5/admin repository by developing a feature to improve the reliability of location-based testing. He introduced the ensureTestData function in Go, which automatically downloads the GeoIP2 test database if it is missing, handling errors robustly and creating necessary directories as needed. This backend development work reduced manual setup, increased the stability of continuous integration, and simplified test data management. By focusing on automated data provisioning and resilient error handling, Min Sun’s contribution laid the foundation for more reliable, data-driven testing workflows and improved documentation of failure scenarios within the testing suite.