During a two-month period, Matteo Collovati contributed to the quarkusio/quarkus and vaadin/hilla repositories, focusing on backend development and codebase maintainability. In quarkusio/quarkus, he improved documentation accuracy by correcting Javadoc references for BuildException, reducing confusion for developers and ensuring consistency across the Java codebase. For vaadin/hilla, Matteo modernized the codebase by refactoring the Hilla hotswapper to align with the Vaadin 25 API, enhancing modularity and future upgrade paths. He also updated dependency management through package-lock.json, improving stability and performance. His work demonstrated careful attention to documentation, API integration, and dependency management using Java and JavaScript.