Iris is an ISLisp implementation which has strong extensiblity
islisp.js.org
islisp.js.org
[1]: ISO/IEC JTC 1/SC 22/WG 16
I don't know if many HNers are going to know about ISLisp is, or what's special about your implementation.
Maybe:
ISLisp in JS/Go: Standards-compliant Lisp smaller than Common-Lisp