Raphael Aloi focused on backend development for the opentensor/btcli repository, addressing a critical issue in proxy address resolution for stake-related queries. He implemented a fix ensuring that move, transfer, and swap operations correctly use the active proxy account, reducing the risk of misrouted stake actions. His approach involved updating validation logic in the sudo trim command to verify proxy addresses for subnet ownership, thereby strengthening governance checks. Working primarily with Python and leveraging async programming and unit testing, Raphael’s contributions enhanced the reliability and correctness of CLI operations for proxy-enabled accounts, demonstrating careful attention to detail in backend workflows.