[gucci-on-fleek]

ConTeXt has been using beta versions Lua 5.5 for a few years now, so you can look through its source [0] or try running it [1] if you're curious what a large codebase written in Lua 5.5 looks like.

[0]: https://codeberg.org/contextgarden/context

[1]: https://wiki.contextgarden.net/Introduction/Installation