During February 2025, this developer focused on enhancing Docker build security across core Worldcoin repositories, including worldcoin/world-chain, iris-mpc, wld-usernames, and developer-portal. They systematically updated .dockerignore files to exclude sensitive files such as .git and .gitignore, preventing leakage of repository metadata and source control information into Docker images. Their work addressed both feature improvements and bug fixes, ensuring cross-repository consistency and measurable improvements in build hygiene. Leveraging skills in DevOps, Docker, and security, they maintained CI/CD efficiency while hardening build processes, demonstrating a methodical approach to reducing risk and improving the overall security posture of the codebase.