During July 2025, Mateus developed user-facing staking enhancements and robust wallet interactions for the infinitybase/bako-safe-ui and bako-safe-api repositories. He built a Liquid Stake UI enabling FUEL staking and withdrawals, integrating React, TypeScript, and Chakra UI for a seamless user experience. His work included advanced address validation and formatting for both EVM and Fuel addresses, improving onboarding and transaction reliability. Mateus also refactored the wallet sign-in flow to ensure secure, consistent account handling and upgraded Fuels protocol dependencies for future compatibility. The depth of his contributions reflects a strong grasp of frontend development, Web3 integration, and dependency management best practices.