Natalie Zelenka focused on backend development and testing within the ecmwf/anemoi-datasets repository, where she addressed a bug affecting the plugin testing environment. She introduced a TestingContext class in Python, serving as a foundational placeholder to stabilize the testing workflow for anemoi-plugins. This technical approach aimed to reduce flaky tests and accelerate continuous integration feedback by providing a more reliable context for future plugin validation enhancements. Although her work during the period centered on a single bug fix rather than feature development, it demonstrated depth in improving test infrastructure and laid groundwork for more efficient quality assurance processes.