Aurelien Deroide contributed to the exoscale/cli repository by enhancing the Elastic IP list output, introducing a Type field to distinguish managed from manual IPs based on health check status. Working primarily with Go and focusing on backend development, Aurelien implemented this feature to improve clarity for users managing Elastic IPs. After assessing the impact, he executed a rollback to maintain stable behavior, demonstrating careful change management and risk assessment. This approach reflected a disciplined engineering process, prioritizing stability and incremental improvement. The work showcased thoughtful use of Go and backend principles, with a focus on maintainability and safe feature delivery.