During December 2025, Thepocp enhanced the DefinitelyTyped/DefinitelyTyped repository by expanding the GsiButtonConfiguration interface for Google One Tap integration. By adding support for 'click_listener' and 'state' properties, Thepocp enabled more flexible and robust configuration options for TypeScript consumers, directly addressing common misconfiguration issues. The work focused on improving type safety and developer experience in front end development, leveraging TypeScript to ensure consistency and reliability across projects using Google One Tap. Although no bugs were fixed during this period, the contribution deepened the open-source typing ecosystem and provided a more adaptable configuration surface for developers integrating authentication features.