Nathan Lam focused on hardening the AWS-based infrastructure for the seek-oss/skuba repository by addressing a critical security vulnerability. He applied a security patch by upgrading AWS CDK to version 2.167.1, mitigating potential account takeover risks. Nathan managed dependencies using yaml and updated the pnpm-lock.yaml file to ensure all related packages reflected the patch. He maintained traceability by documenting the mitigation in the project’s changelog, demonstrating careful dependency management and secure release practices. Although the work did not introduce new features, it contributed to the project’s stability and security, reflecting a depth of focus on risk reduction and infrastructure reliability.