Guillaume Lemeur worked on the suitenumerique/meet repository, focusing on simplifying the deployment process for the Meet backend by modifying its Helm chart. He removed the affinity configuration from backend jobs, which reduced potential misconfigurations and streamlined the deployment workflow. This change, implemented using Helm and Kubernetes with YAML, aimed to make deployments faster and more predictable while lowering operational risk. Guillaume updated the Helm chart version to reflect these improvements, demonstrating a practical approach to release and version management. The work addressed deployment reliability and maintainability, though it was limited in scope to a single feature over a one-month period.