An experimental version of Etoys, a programming environment for children, used Tweak instead of Morphic.2 Etoys was a major influence on a similar Squeak-based programming environment known as Scratch.
"ABOUT". Tweak website (Andreas Raab). Archived from the original on 2007-03-23. https://archive.today/20070323064315/http://tweakproject.org/ABOUT/ ↩
Bert Freudenberg (Jan 11, 2007). "Sophie, Tweak on the OLPC laptop". /w/index.php?title=Bert_Freudenberg&action=edit&redlink=1 ↩