Nand Lab original source code and generated interface sound effects Copyright 2026 Nand Lab contributors Licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported license (CC BY-NC-SA 3.0). License summary: https://creativecommons.org/licenses/by-nc-sa/3.0/ Legal code: https://creativecommons.org/licenses/by-nc-sa/3.0/legalcode This license applies to original Nand Lab code and interface sound effects. Nand to Tetris course materials retain the attribution and license stated in course/README.md. Third-party libraries and fonts retain their own licenses, provided in lab/static/vendor/ and lab/static/fonts/. AI-generated background music is used as integrated site audio and is not included in this source-code license.