Lisa Jian upgraded the Firebase Local Toolkit in the firebase/firebase-tools repository to version 2.15.0, focusing on enhancing Dart object hashing by adopting Object.hashAll(). She managed the version upgrade process, updated the changelog to reflect the new hashing semantics, and ensured compatibility with existing workflows. Her work centered on build tools and dependency management, leveraging skills in Dart and Markdown to document and validate the changes. By improving how Dart-generated objects are handled, Lisa contributed to more reliable and performant downstream tooling. The depth of her work is reflected in the careful integration and validation across the development environment.