I second the request and add a call for API code. I am currently trying to pull together data from:
Basis Peak, Hexoskin, Neuma watch, Zeo, Athos pants, Recon snow2 goggles, writhing scale and a couple others.
I would love to find an off the shelf solution to at least marry all the data by key identifier (time stamp). Barring that, if I could get the code for each I would be happy. Hopefully someone here has it, but if not I will keep poking around github