Thanks for your message. BME688 BSEC2 with C code has been supported. We gladly publish all publicly available info, but sadly are unable to share the requested info within the community. Thanks for your understanding. If you have any further requests, please visit https://www.bosch-sensortec.com/about-us/contact/contact-form, use the contact form to submit your request and please make sure you refer to the question posed in the community.