I just received the Grow HAT Mini, and it works quite well. I plan to install it together with a BME680 sensor in my greenhouse. It would be really nice if I could see all the values from a web interface. I found something about Cayenne in this thread. I think I should get it working with the Grow and BME680, but I wonder if there exists something like Cayenne which I can run on one of my own servers. Does somebody have an idea if that exists/is possible?