Do we have a free and open-source physiological multi-sensor platform based on InfluxDB which is similar to Home Assistant?

Is there a violation of competition laws in the US, EU, UK, China, Canada & Switzerland for EEG devices up to 50 000 USD? Is there not a trend of the world that electronics components become better and more affordable? But is this also the case for EEG devices up to 50 000 (g.tec medical …