Marcin Glowacki focused on maintaining and improving the vaadin/hilla repository by delivering a targeted upgrade of the JavaParser dependency to version 3.28.0. He addressed issues related to unnamed variable handling and restored compatibility with Flow snapshots, which had caused compilation problems and disrupted build stability. Using his expertise in Java, XML, and dependency management, Marcin ensured that the build and test automation pipelines remained reliable and release-ready. His work strengthened parser-dependent workflows, reduced parsing-related risks, and enabled smoother feature development. This contribution improved code reliability and developer experience, supporting faster iteration and more predictable releases for the project.