Eugenia Sarafova is Associate Professor with 20 years of experience in teaching GIS & Cartography. Author of training programs, courses and books dedicated to geospatial technologies. In the last several years Eugenia has presented at hundreds of live and online events as a host, presenter and science communicator. Ivan Ivanov is a geographer and software engineer heavily involved in developing and promoting free and open source geospatial software. Since 2019 he is actively contributing in three of the flagship fully open-source GIS applications - QGIS, QField and QFieldCloud. Andrew Cutts holds a geography degree and a masters degree in GIS and has almost 20 years of experience in working with geospatial technology. He currently works as a freelance geospatial consultant. He has worked in local government, large multinational companies, and small and medium-sized enterprises. He has run a geospatial blog for almost 3 years and is a co-host of the #scenefromabove podcast. Andrew has spoken at events worldwide on GIS and Earth observation. He is a keen user of Python, especially for rapid prototyping for geospatial challenges. Currently, he is working with clients to maximize their investment with geospatial technology through direct consulting, training, and technical writing. Anita Graser is a spatial data scientist, open source GIS advocate, and author with a background in geographic information science. She is currently working with the Center for Mobility Systems at the Austrian Institute of Technology in Vienna and teaching QGIS classes at UNIGIS Salzburg. She serves on the QGIS project steering committee. and has published several books about QGIS. Furthermore, she develops tools, such as the Time Manager plugin for QGIS.