Guilherme De Marchi delivered Brazilian Portuguese localization for the sniffnet repository, focusing on expanding accessibility and usability for Brazilian users. Working in Rust, he implemented comprehensive translations across the user interface, including targeted updates for critical strings such as 'Reserved address.' His approach emphasized maintainability and alignment with existing internationalization and localization workflows, ensuring that changes were non-disruptive and posed minimal risk of regression. The work was committed iteratively, reflecting careful review and adherence to repository conventions. While the scope was limited to feature development without bug fixes, the depth of translation coverage addressed key usability needs for Portuguese-speaking users.