During September 2025, Weijian Chen focused on improving the security and reliability of the traefik-helm-chart repository. He addressed a tracer creation warning by implementing a default security context and setting a USER environment variable within the tracer pod template, using Helm and Kubernetes best practices. To ensure these changes were robust, he added a regression test in YAML to verify the default user setting for tracer pods. This work standardized security configurations across the chart, reduced operational noise, and mitigated potential security risks, reflecting a thoughtful approach to secure-by-default engineering with maintainable, well-tested changes in a production deployment context.