The seventh issue of Groma publishes the research endeavours of young researchers strongly believing that methodological and technological evolution in archaeological research (and not only) should be based on strong ethical ground, i.e., on the paradigm of Open Science and on the free and open-source software and processes. Domizia D'Erasmo (LAD, Sapienza University of Rome), Cristina Gonzalez-Esteban (University of Southampton), Paolo Rosati (LAD, Sapienza University of Rome), Matteo Serpetti (Univertsita degli Studi della Tuscia) and Livia Tirabassi (University of Ghent) are the organisers of the 15th edition of the ArcheoFOSS International conference on open software, hardware, processes, data and formats in archaeological research (https://archeofoss.org) and the editors of the papers collected in this volume.