Worked on the mission-apprentissage/flux-retour-cfas repository to enhance security and reliability of secret management within deployment pipelines. Focused on hardening the system by implementing Vault encryption key rotation and updating the Vault Password Retrieval Script to use a revised operation document get command. Leveraged Shell scripting and DevOps practices to refresh vault file content, ensuring alignment with new encryption keys and configurations. This approach improved maintenance routines and auditability, reducing the risk of stale keys and unauthorized access. No major bugs were addressed during this period, with efforts concentrated on proactive security measures and routine maintenance using scripting and security skills.