Tibere Borel developed a fullscreen-aware machine switching feature for the microsoft/PowerToys repository, enabling users to prevent automatic device switching when fullscreen applications are active, with a configurable ignore list and updated UI controls. He implemented these enhancements using C#, XAML, and the Windows API, ensuring the new settings were accessible and intuitive for end-users. In parallel, Tibere contributed to MicrosoftDocs/windows-dev-docs by clarifying documentation around Mouse Without Borders’ fullscreen behavior, improving guidance for both users and support teams. His work demonstrated depth in configuration management, UI development, and documentation, addressing real workflow interruptions and enhancing cross-device productivity.