A meeting involving all partners in the ARPON project has taken place through videoconferencing on 2020 October 20th. It was the opportunity to meet each other and exchange about our latest results, current works and next actions, both in scientific and organisational terms. The exchanges have been rich and have clarified the role and the work of each partner. The presented slides are to be sent to all attendees. The next meeting is scheduled for the beginning of 2022.