Aurelien Tabard is a computer scientist specialised in Human-Computer Interaction and Sustainable Computing. He is a cofounder of Limites Numeriques, a research collective investigating whether computing systems can be designed within planetary boundaries. His current research focuses on Digital Obsolescence, with studies ranging from operating systems analysis to mobile App deprecation and social determinants of device renewal, software interventions for creating longer-lasting devices, and indirect environmental effects of design choices.