Nicolai (aka nipafx) is a Java enthusiast focused on language features and core APIs with a passion for learning and sharing - in articles, newsletters, and books; in tweets, videos, and streams; in demo repos and at conferences - more on all of that on https://nipafx.dev. He's a Java Developer Advocate at Oracle and organizer of Accento (https://accento.dev). That aside, he's best known for his haircut.