Luiz M. focused on stabilizing the test environment for the DataSQRL/sqrl repository by addressing flakiness in automated QA cycles. He implemented a compatibility fix for Kafka integration tests, updating the Docker Compose configuration to use the bitnamileglegacy/kafka image for both kafka and kafka-setup services. This change, made entirely in YAML, targeted the test infrastructure without altering production code or application logic. By resolving image-related failures, Luiz improved the reliability and speed of CI feedback for future feature development. His work demonstrated practical DevOps and Docker skills, with a clear, traceable impact on repository hygiene and test stability.