Peter Maguire worked on security hardening for the Infisical/infisical repository, focusing on improving the production Docker configuration. He addressed a critical security concern by removing the default exposure of the Redis port, thereby reducing the attack surface and aligning the deployment with industry best practices. Using YAML for configuration and leveraging his skills in DevOps, Docker, and security, Peter implemented a targeted change that prevents unauthorized access to Redis in production environments. The work was scoped to a single feature over one month, demonstrating a focused approach to infrastructure security and a clear understanding of secure deployment requirements in containerized applications.