The site contains all the project materials and software tools necessary for building a general-purpose computer system from the ground up.

The materials are aimed at students, instructors, and self-learners. Everything is free and open-source, as long as you operate in a non-profit, educational setting.

The materials also support two courses that we now teach in Coursera: Nand2Tetris Part I (hardware projects/chapters 1-6), and Nand2Tetris Part II (software projects/chapters 7-12). These courses are aimed at learners who wish to take the course at their own pace. Here is a two-minute video promo of Part I of the course.