We were a colorful bunch on August 11th at Universidad Técnica Federico Santa María in Valparaíso, Chile. Sustainable Smart Cities are a meeting point of disciplines that traditionally don’t meet so often, so it was great to have representatives of the city, government, IT sector and scientists researching Engineering, HumanRights, Geoinformatics, and even Astronomy, together in this room. On the 4th CAP4CITY Design Workshop we were brainstorming on what competences and teaching methods are most crucial to teach the future generations of Sustainable Smart Cities professionals.