During November 2024, Solano Epalacio focused on stabilizing testnet interactions for the XLabs/arbitrary-token-transfers repository. He addressed a critical issue by correcting the Avalanche testnet gas token address, ensuring accurate token transfer flows and reducing the risk of misaddressing. Solano updated project dependencies and incremented the package version, which improved compatibility for downstream consumers and maintained reliable development workflows. His work involved JavaScript and leveraged blockchain development skills alongside version control best practices. While the scope was targeted, the changes contributed to a more robust testnet environment, supporting both current and future development efforts within the blockchain ecosystem.