This post was year and half ago. The bug I mentioned was already fixed.
Currently, you can use our bsec and bsec2 both for your platform.
For example, in case of bsec2, you can download the our bsec2 example code as below link
arduino github - https://github.com/BoschSensortec/Bosch-BSEC2-Library
general bsec2 example - https://www.bosch-sensortec.com/software-tools/software/bme688-software/
Then, you need to follow the migration guide step for bsec 2.
Yes, you need to use right algo file for your platform. If your platform is esp8266, please use the algo file in esp8266 folder.
If you are using Arduino platform, you just need to add our librariy into Arduino as guided.
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