Worked on enhancing reliability within the srl-labs/containerlab project by addressing critical issues in command execution and cluster management workflows. Focused on improving error handling in the dependency manager, ensuring that execution results are properly propagated and inaccessible in failure scenarios to prevent runtime panics. Tackled concurrency challenges by serializing KinD cluster deletions using a weighted semaphore, which resolved file lock errors and stabilized the deletion process. These targeted bug fixes, implemented in Go and leveraging skills in concurrency and Kubernetes, contributed to more predictable CI/CD operations and improved maintainability for containerlab’s core workflows, despite no new feature development during this period.