Hello!
I recently chose Lua as the extension language for my OSX window manager, Hydra. It's still in beta, and I hope to release 1.0 in about a week, but you can browse the project on its github page:
https://github.com/sdegutis/hydra
This project is my first real attempt at integrating Lua into an application as an extension language, as well as my first time seriously using Lua. The experience has been exceedingly pleasant so far, and I'm very happy that I found Lua and gave it serious consideration for this role.
In fact, I've made a point of it to write only the bare minimum of the application in C (really Objective-C), and to do as much as possible in Lua. It's really been a lot easier than when I wrote it in Objective-C. And I hope that it will be easier for others to contribute to the project if it's all in Lua.
Since it is my first attempt, the code in my project may not be perfectly idiomatic, although I've been cleaning it up as I go along. The folks in the #lua channel on freenode have also been tremendously helpful in giving constructive criticism and feedback on my modules and their design, and it's evolved quite a bit since I started, and I think it landed in a good spot.
The end result is an API that I hope is mostly idiomatic and easy to use. The API can be easily browsed in the HTML form which I compiled from within the app:
http://sdegutis.github.io/hydra/
One more thing that may be of note, is that I used a home-grown documentation system, instead of the traditional JavaDoc-style system that peruses comments. My system has a global `doc` which then mirrors the rest of the API. And each node on this tree has a custom __tostring metamethod which is useful in the REPL. This system was used to generate the HTML documentation linked above, by first translating this documentation tree into JSON. One of my favorite benefits of this so far has been that I can still write the documentation for a method right next to its implementation.
Anyway, I just wanted to let this mailing list know about this project, since it's Lua-related. Thanks for your time.
