This talk introduces the core GeoServer application and explores the ecosystem that has developed around this beloved OSGeo application. Our presentation draws on the GeoServer ecosystem for use-cases and examples of how the application has been used successfully by a wide range of organizations. Each use-case highlights a capability of GeoServer providing an overview of the technology drawn from practical examples. - Andrea Amie is on hand to share success stories highlighting GeoServer use in managing vulnerable ecosystems, agriculture information management, and marine data management. - Jody Garnett will look at how GeoServer technology powers cloud services - Gabriel will look at am amazing remixes for Cloud Native GeoServer - GeoServer technology powering the OSGeo community, including GeoNode, geOrchestra - A showcase of examples collected from our user list