This presentation delves into the Joint Research Centre's (JRC) extensive experience in leveraging Voilà dashboards, widget libraries, and geospatial web applications for scientific data visualization. Over the past several years, the JRC has cultivated a robust ecosystem around Voilà and Python, resulting in the design and deployment of numerous real-world web applications across diverse scientific domains, including agricultural/biodiversity surveys and air quality monitoring. This effort has been accompanied by a strong commitment to building a thriving developer community, supported by dedicated training and comprehensive resource libraries, like for example the vois Python library, available as open source at https://code.europa.eu/jrc-bdap/vois.

A key focus of this talk is the introduction and demonstration of our innovative meta-dashboards. These are Voilà-powered applications designed to streamline the creation of complex, multi-page dashboards by automating framework and code generation. We will showcase how meta-dashboards, such as the tool accessible at https://vois.azurewebsites.net/, can significantly accelerate the development of complex geospatial web applications. Through a live demonstration, attendees will witness the ease with which a fully functional geospatial application can be built using these visual tools.

The presentation will demonstrate Voilà's efficacy in developing real-world web applications that transform complex datasets into actionable insights. Participants will gain a clear understanding of how Voilà is used at the JRC to create powerful data visualization tools, supporting comprehensive data assessment and informed decision-making across various scientific fields. The applications showcased will highlight the ability of Voilà to handle large and complex datasets, and to create interactive environments that are easy to use and understand (see https://www.daigio.it/EuroSciPy2025/ for some screenshots of the Voilà dashboards that will be presented).