A dead simple literate Lua
luarocks install dedlit
dedlit takes a given file, and executes any code found fenced in triple backticks:
```print("Hello, World")```
It ignores the rest, which allows you to use whatever syntax you feel like.
dedlit was thrown together in 5mins, because I felt the existing tools were overly restrictive, or overly complex, and am writing a series of documents on implementing a language in Lua.
I don't expect it is appropriate for any other purpose, but considering how simple it is, you may find some.