Packaging node-webkit application as ".appx" (for Windows 8 Store)

I want to know how I'd be able to package a node-webkit application as an .appx for the Windows 8 Store? I've been able to create an .exe of my application that works as long as it's in the same directory as its .dll's.

Here's how my directory currently looks:

application/
    MyApplication.exe
    ffmpegsumo.dll
    icudt.dll
    libEGL.dll
    libGLESv2.dll
    nw.pak

I'm unfamiliar with Windows development since I primarily use OSX, so I'm not sure what steps to take next to package this .exe as a .appx. Any help is appreciated.

I had worked with node-web-kit once, and I remember that your node app should have index.html file. WinRt apps are supporting Html5/Js. Try create WinJs app, put all files from nw.pak into project directories(html/css/js) and add your extended library like references to your project. I'm not sure about adding extend libraries, winJs app can give an error.