That's why we are talking about cheap small mini-fabs instead of just placing the order to any Chinese fab. The mini-fabs would use open-source community-driven

That's why we are talking about cheap small mini-fabs instead of just placing the order to any Chinese fab. The mini-fabs would use open-source community-driven software which is easy to audit for backdoors. That's not easy, but the trend is toward that, for sure - e.g. pick and place systems driven by OpenPNP is a step in this direction.