Also in the news today is the passing of John Walker of Autodesk. His atlast https://www.fourmilab.ch/atlast/atlast2.html https://www.fourmilab.ch/atlast/atlast

Also in the news today is the passing of John Walker of Autodesk. His atlast https://www.fourmilab.ch/atlast/atlast2.html https://www.fourmilab.ch/atlast/atlast2.html is a version of Forth, and highly embeddable.