Sublime Text GUI - Environment Variables

[redbassett]

There is a wiki article on this, but I'm a bit stuck. As noted in the article, I can get sublime_guard to work by starting Sublime Text (3) from the command line, however I would like to be able to use it from the GUI as well. Unfortunately, the article is outdated, as support for ~/.MacOSX/environment.plist was dropped a few versions back (I'm running 10.10). I've poked around with launchd and a bunch of other things, but I haven't actually figured out how to get Sublime Text to see these environment variables correctly. Can anyone, @cyphactor or anyone else, give me pointers here (which can hopefully lead to an updated wiki article)?