Could also use ESPHome. It has BME680 support. Could probably set it on on an ESP8266 in a couple of minutes.
Gave that one a go but it doesn’t use BSEC library to calculate eCO2 or VOC unfortunately. The Bosch forum had some examples of linking in the precompiled library and through that I managed to get it sort of working.
Not sure why it’s not updating in HA unless it’s plugged into my PC or if I have the web server up (plugged into USB walladapter).