Nim is a statically typed systems and applications programming language which offers perhaps some of the most powerful metaprogramming capabilities. It is also the first language that is compiled to native executable code and fully supports runtime hot code-reloading without almost any limitations, along with a REPL - a language environment cherished especially by those working in science and education.
The session consists of a quick introduction to the language, followed by a demo of runtime hot code-reloading + the use of a REPL along with an explanation of how it all works. The approach is applicable to other compiled languages as well - even C/C++!