The Éthiciel Association is a non-profit organization, established under the law of July 1st, 1901, with the mission to promote the development and hosting of free and open-source software intended for public-interest uses. Our vision is based on strong values of digital inclusion, collaboration, resource sharing, and social responsibility. We believe in the capacity of technology to build bridges, foster citizen engagement, and strengthen social bonds. France has a dense network of associations, and it is essential to establish simple and effective tools for the development and management of amateur collective activities (music, dance, photography, board games, computer clubs, etc.). These associations exist in every city, but many of them have limited online visibility, often through websites provided by local municipalities, which are not always sufficient to make them known or promote their development. It is therefore necessary to offer a software solution with minimal environmental impact, supporting digital sovereignty, and strengthening the associative network by making it decentralized and federated. This would promote citizen engagement, the emergence of new…