FEDWELL: Life-long federated user and mental modeling for health and well-being. - Sabine Janzen; Prajvi Saxena; Cicy Agnes; Muhammad Ebad Ullah Khan; Amr Gomaa; Michael Feld; André Zenner; Pascal Lessel; Julian Wolter; Florian Daiber; Rafael Math; Niko Kleer; et al. (CAiSE Research Projects Exhibition, 2025)