The Heresy Programming Language
source code: https://github.com/jarcane/heresy The Heresy language is a functional Lisp/Scheme dialect implemented in Racket, with syntax inspired by the BASIC family of programming languages. Its principle goals are to provide a simple core language for BASIC and other programmers to experiment with and learn how to program functionally.
https://docs.racket-lang.org/heresy/index.html