this project is pretty interesting, although i'm wondering how they're planning to address the "easy sandboxing" design goal in a compiled language with raw pointer arithmetic and clib interop... in that regard i think lua would have been a lot easier to sandbox, despite the author's concerns.

(also, they might want to look into lua userdata, since that would address their concern about the overhead of converting between native and lua data structures. the language is designed to be embedded in C programs after all)