Homegrown Lexical Closures in a Lisp-like uxn Environment

The author describes niënor, a Lisp-like environment for the uxn virtual machine, focusing on its innovative approach to implementing lexically scoped closures. Instead of the complex approach of copying functions and replacing unbound variables at runtime, niënor cleverly adds environment variables as parameters to lambda functions at compile time. At runtime, a wrapper function (portal) is generated to pass these environment variables. This avoids runtime code generation and complex address calculations, providing an efficient and elegant solution for closures. The system also includes `malloc` and `free` for dynamic memory management of these closures.