Rokkki contributed to apache/shenyu by migrating the end-to-end testing framework from Kubernetes to Docker Compose, introducing new synchronization and storage configurations that streamlined test environments and improved reproducibility. He enhanced the admin module with namespace-aware WebSocket management, updating both backend logic and client components to support scalable, per-namespace session handling. For Duansg/hertzbeat, Rokkki migrated analytics from Google Tag Manager to Matomo, implementing privacy controls such as cookie disabling and standardized URL processing. He also addressed security vulnerabilities through dependency updates. His work leveraged Java, JavaScript, and YAML, demonstrating depth in backend development, analytics integration, and configuration management.