The document presents an overview of Geomapfish, an open-source webGIS platform supported by Camptocamp, focused on sustainable development and community-driven enhancements since 2011. It discusses collaborative efforts across various public agencies and highlights the software architecture, design principles, and upcoming features for version 2.3, set for release in December 2017. The project emphasizes functionality like multilingual support, customization, and security measures, while encouraging broad community contributions.