That's pretty cool.
However, and correct me if I'm wrong, it still uses Arduino for building and communicating?
I use Xcode for my daily development work on Galileo with just a basic workflow, which works for me.
I tell Xcode to make a new 'command line' utility in C or C++
I then add all my C and H files to the project, which gives me full access to Xcode's fantastic code navigation. It even does syntax checking.
Of course, I can't build using Xcode, so I have a simple command line in a terminal window which uses 'scp' to move all the files to Galiloe, and I do 'make' there.
Here is a screen recording of me using Xcode to develop and navigate the code, followed by uploading to galileo (left Terminal window) and in the right terminal window I am logged into galileo using ssh, where I do make and run the project. Simples!