Generally, we can say that packaging an NW.js application is sufficient to:
Linux and Microsoft Windows: Copy all the project files inside the folder containing the NW.js executable and deploy the entire folder
Mac OS X: Copy all of the project files into
nwjs.app/Contents/Resources/app.nw/and deploy thenwjs.appfile
If this rule is generally valid, it is also true that it is just one of the many ways to package an NW.js application and does not provide any customization of the appearance and behavior of the application.
It should also be considered that some of the installed Node.js/io.js modules might not work or require different dependencies based on the current platform. For this reason, you should always redo npm install on any platform to which you plan to deploy.
Another thing has to be considered when naming files and folders. While Mac OS X and Microsoft Windows are case insensitive, this is not true for Linux. Moreover, when packaging...