Rokkki contributed to apache/shenyu by migrating the end-to-end testing framework from Kubernetes to Docker Compose, streamlining test setup and improving reproducibility for faster CI feedback. He enhanced the admin’s WebSocket management by introducing namespace-aware session handling, aligning new features with existing configuration logic for better scalability. In Duansg/hertzbeat, Rokkki migrated analytics from Google Tag Manager to Matomo, implementing privacy controls such as cookie disabling and standardized URL processing to strengthen data compliance. He also addressed security vulnerabilities through dependency updates. His work demonstrated depth in backend development, analytics integration, and configuration management using Java, JavaScript, and YAML.