4 ms·I hired/partnered with one of their former engineers. QPX is most certainly still written in Common Lisp.by drmeister 8y agoI hired/partnered with one of their former engineers. QPX is most certainly still written in Common Lisp.eatonphil 8y agoThanks for the confirmation!lispm 8y agoThey also published some code: https://common-lisp.net/project/qitab/ https://common-lisp.net/project/qitab/