Mjolnir is an OS X app that lets you automate common tasks using the language Lua. At its core, it doesn't actually do anything besides load up a Lua environment; the real power lies in all the useful modules that you can install.
You write a "config", which just means ~/.mjolnir/init.lua. This file, along with whatever modules it requires, have full access to the built-in mjolnir module, and all Lua modules that you have installed (e.g. from LuaRocks or any way you want to install them).
What's new in version 0.4.3
ReleaseJanuary 31, 2015
Date AddedJanuary 31, 2015
Operating SystemsMacintosh, Mac OS X 10.8, Mac OS X 10.9, Mac OS X 10.10