The Open Source Geospatial Foundation, or OSGeo, is a not-for-profit umbrella organization for Free and Open Source geospatial tools, including QGIS, gvSIG, GRASS GIS, Geoserver and many others. OSGeo is hosting this Lunchbag event to inform about the latest developments within and to support the collaborative development of open source geospatial software by promoting sustainable Open Science within EGU, especially for Early Career Scientists.