as @gadgetoid states in the video, getting this to work is not straightforward. The concern is mostly that once you got it set up nicely - after non-inconsiderable efforts - it’s all too easy to break it using their UI so it’s hardly something easy to keep going without fail.
I think it’s something we have in mind, when time permits, to look into what the best way to get that working and not be so prone to breakage. Until then, it’s quite possible that just running the pivumeter setup will yield something functional. YMMV.