This is really nice! I wonder how well the ulisp compiler does with optimization - especially for code size. My group is developing Clasp Common Lisp and we use the Cleavir compiler (
https://github.com/clasp-developers/clasp and
https://github.com/robert-strandh/SICL). Cleavir is a new project to develop a powerful, portable Common Lisp compiler and it could be used to compile lisp dialects.