Bert Freudenberg is a freelance software engineer with a special interest in live, self-supporting systems and their use in education. While consulting for Alan Kay’s VPRI, he worked on porting the Etoys and Scratch programming environments to the One Laptop Per Child computer, reviving Smalltalk-78, and the STEPS project. He is a leading member of the Squeak Smalltalk open source community and author of SqueakJS. Before freelancing, Bert worked at impara building a 3D authoring system for children. His PhD was awarded for a thesis on real-time non-photorealistic 3D rendering.