No VPN or exposing ports necessary.
The source code is coming soon.
The plugin uses the language selected in your IDE preferences. If it's a non-IDE language, select in in the plugin menu. Supported are: bg, bs, cs, da, de, el, en, es ...
PDIStack Framework covers all essential things to build IoT applications easily. Basically it is designed on the top of portable interface layers that any device can create their interface from.