Also what Peter Gamma from www.petergamma.org writes here is the result of several years of work of reviewing BCI’s, or on other words of reviewing low-cost high-quality physiological sensor devices. As reported previously, PiEEG was «Live on Crowd Supply!» on Jan 11, 2023 https://www.crowdsupply.com/hackerbci/pieeg/updates So at least someone could attach OpenBCI GUI to PiEEG and …