An earlier project in a similar vein is Yuji Minejima's Sacla (http://homepage1.nifty.com/bmonkey/lisp/sacla/index-en.html http://homepage1.nifty.com/bmonkey/li

An earlier project in a similar vein is Yuji Minejima's Sacla (http://homepage1.nifty.com/bmonkey/lisp/sacla/index-en.html http://homepage1.nifty.com/bmonkey/lisp/sacla/index-en.html), an unfinished, metacircular implementation of Common Lisp in portable Common Lisp.