Alessandro Molina focused on backend development and database integration for the ibis-project/ibis repository, addressing compatibility issues with DuckDB 1.4.1. He restored and strengthened the backend’s support for this DuckDB version by updating import paths for functional components and refining data-type handling for user-defined functions. Working primarily in Python, Alessandro ensured that the backend maintained functional parity with previous DuckDB releases, allowing users to continue leveraging DuckDB-based analytics without disruption. Although the work centered on a single bug fix rather than new features, it demonstrated careful attention to evolving APIs and maintained the stability of the project’s database integration.