Maybe a little bit offtopic, but rxi also made a few Lua / LÖVE 2D libraries that I've been able to put to good use, namely shash [0], lume [1], json.lua [2] and classic [3].

He makes some nice stuff.

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[0]: https://github.com/rxi/shash

[1]: https://github.com/rxi/lume

[2]: https://github.com/rxi/json.lua

[3]: https://github.com/rxi/classic