Comment by iLemming

Emacs Lisp is known for its great documentation, but I bet you're not asking about that. Try Fennel - it's a zero-overhead Lisp->Lua compiler. 'Zero-overhead' means that Fennel compiles directly to Lua without adding any extra runtime costs or abstractions beyond those present in standard Lua, ensuring Fennel code runs as efficiently as native Lua code. It has a relatively small set of features and is a very lovely language. I use it for dealing with things that need Lua - Hammerspoon, AwesomeWM, Neovim, etc. I jokingly call Fennel "the best Lua formatter" because Fennel code looks much more compact, cleaner, and easier to reason about than Lua. Lua syntax is weird, and I can never figure out how to format it for the best readability; standard tools and formatters rarely help here, sometimes making things even worse. The problem I almost never had with Fennel.