MAINCODE held its 1st Year Plenary Meeting in Halandri on 4–5 December 2025, bringing partners together for two days of collaborative activities. The programme included a visit to the 4th Primary School of Halandri, followed by plenary sessions reviewing the project’s progress during its first year. Discussions focused on methodological development, co-design processes, and future priorities. The meeting concluded with participation in sessions of the 3rd International Conference on Participatory Design.