Backwards compatibility with older versions of macOS

[thebigh2014]

I'm not sure if this is possible but having the ESLauncher2 be compatible with older versions of macOS (I'm running 10.11) would be much appreciated. My computer does meet all the other requirements so unless there's something in the code or dependencies that precludes my system I don't see this being a problem.

Or maybe at least if I had the ability to easily build it myself that would be helpful as no Xcode project is provided for a macOS build (so I'm not even sure how you build it).