How to build Electron firmware with VisualGDB?

What are the steps to bringing the Electron firmware local build process on VisualGDB?

I’ve been using VisualGDB for building and debugging on STM32F0… and it’s fantastic. Their support is excellent at VGDB is only $65.

Elsewhere on Particle community, I’ve already seen this:
…which I’ve actually followed.
But I need specific steps regarding Particle libraries.

This would put Electron and Photon development on steroids!