You can start way simpler than that, as forth won't need an AST or a complex parser. See this repository for a tutorial-approach to building a minimal forth-li

You can start way simpler than that, as forth won't need an AST or a complex parser. See this repository for a tutorial-approach to building a minimal forth-like language, in golang: https://github.com/skx/foth https://github.com/skx/foth