Welcome aboard.
I had a look on youtube (https://www.youtube.com/watch?v=Ag0sM8dIsHg) and it does look interesting. I think without knowing the exact science behind how it works it might be a tad difficult for the home builder. Not impossible, but those guys have obviously put a lot of time and research into getting the thing to work well.
I suppose one could almost say a gravity feed smoker is sort of inverse flame as it takes heat and moves it slightly down and along. But that might be a bit of a stretch.