There is an "About" page https://snap.berkeley.edu/about https://snap.berkeley.edu/about that explains this in detail, but you have to go looking for it. Since

There is an "About" page https://snap.berkeley.edu/about https://snap.berkeley.edu/about that explains this in detail, but you have to go looking for it. Since it's immediately obvious from the banner that there's some relationship between Snap and Scratch, the homepage should give a short summary. At a minimum, I would present the first paragraph from the "About" page in a prominent place on the homepage: > Snap! (formerly BYOB) is a visual, drag-and-drop programming language. It is an extended reimplementation of Scratch (a project of the Lifelong Kindergarten Group at the MIT Media Lab) that allows you to Build Your Own Blocks. It also features first class lists, first class procedures, and first class continuations. These added capabilities make it suitable for a serious introduction to computer science for high school or college students.