Thanks a lot :) We are thinking about opensourcing. Not really any experience with it. It's quite easy to build yourself (ESP32 with EDA and heartrate attached).

Can ask the hw team for the schematics (or just the sensing setup, I guess easy to replicate with most embedded platforms).

We might still have a couple of bands in the lab somewhere ... If you have a cool idea what to use it for, could send one out. (Yet, might take a while before I know, Just ping me by mail).