Hey @i-n-g-m-a-r, author of the Grizzly library here. From a quick glance I do not believe that the RaZberry 7 Pro will work with Grizzly. Grizzly uses a program called zipgateway provided by Silicon labs to manage the Z-Wave network and facilitate communication between a user and Z-Wave devices. Unfortunately, zipgateway requires the controller to use the bridge controller library and it seems that the RaZberry 7 seems to be using the static controller library. You can maybe flash the RaZberry 7 firmware to change the type of controller library, but maybe reach out to their support? They might be able to provide a quicker solution than I because I am not familiar with that particular controller. If you’re able to turn the controller into a bridge controller, then you can run zipgateway and thus run Grizzly.