Worked on the ninech/nctl repository to enhance cluster creation by enabling specification of the OpenSearch version, introducing a new parameter within the command structure and updating backend logic to support this feature. Applied Go programming skills to implement robust test coverage, ensuring the new functionality handled various scenarios reliably. Focused on backend development and dependency management by updating Go module dependencies to their latest versions, which improved both security and performance. The work emphasized test-driven development practices, resulting in more predictable deployments and a stronger security posture, while maintaining code quality and reliability throughout the month without addressing major bug fixes.