Over a two-month period, contributed to the mezonai/mmn repository by delivering backend and DevOps improvements using Go, TypeScript, and Docker. Enhanced the reliability of the test suite by removing unused imports and correcting type references, which improved test accuracy and maintainability. Addressed a bug in entry hashing logic to ensure the system gracefully skips hashing when no valid transactions are present, increasing robustness. In the following month, stabilized Node JSON-RPC service deployments by implementing a unified Docker Compose port allocation strategy, preventing port conflicts and improving operational stability. Work emphasized backend development, bug fixing, and deployment automation with clear, traceable changes.