When Peter Gamma from www.petergamma.org shows interest in the Greentek Gelfree S3 EEG cap in the www.openbci.com forum, this caps moves from OpenBCI to mBrainTrain in Belgrad, Serbia:

And when Peter Gamma from www.petergamma.org shows interest in 32 channel EEG devices, mBrainTrain in Belgrad, Serbia introduces Smarting PRO X with 32 and 64 EEG channels:

But devices from mBrainTrain are expensive. And which Swiss buy EEG devices from mBrainTrain in Belgrad, Serbia? The hardware costs of an EEG device with 32 channels based on TGAM modules and InfluxDB are estimated around 700 USD:

To build your physiological multi-sensor device based on the ADS1299 chip from Texas Instruments or based on InfluxDB?

And even Peter Gamma from www.petergamma.org can imagine to build such a device by himself. But he will not do this until some electronics engineers who are more skilled in soft- and hardware development write a paper about it in a high-quality scientific journal. If you already know such a paper, please write it in the comments below.