Douglas Duteil focused on stabilizing and securing CI/CD workflows and core infrastructure across the proconnect-gouv/federation and numerique-gouv/proconnect-identite repositories. He addressed CI workflow permission issues and hardened Bash scripts, using Bash, YAML, and GitHub Actions to reduce build failures and align with code scanning requirements. In the identity service, he executed a controlled rollback of Node.js and npm upgrades, restoring system stability and maintaining service availability. His work emphasized disciplined change management, robust scripting, and compliance with security policies, resulting in more predictable releases and easier maintenance without introducing new features during the two-month period.