In that case one can't say that the hardware structure of Foundation Passport is open-source. A great deal of it is, probably more than with other manufacturers. But you are still dealing with an essential close-source chip that is the Secure Element and probably NDAs just like with other brands. I remember that I read somewhere that they have an open-source hardware license. Not sure how one can acquire that unless each component qualifies as open-source. Anyways, this is the wrong topic for such discussions.