Filmed at https://2020.dotswift.io on February 3, 2020 in Paris. More talks on https://dotconferences.com/talks Denis explains how conforming most of your entities to simple protocols can turn out to be really useful. Especially those protocols that require no more work than just stating your given entity conforms to it. Hashable, Identifiable I am looking at you. Once most of your entities do conform to those protocols, you can now enjoy the full power of mixins and other protocol extensions.