Unfortunately, no. At the same time, you don't need their "cloud" to use or run an instance of netdata. From what I gather, it's more or less intended to help monitor multiple instances of netdata on different machines. When I first installed netdata, I initially thought it required the use of their cloud to store historical metrics, but this is not the case. You just need to configure the dbengine, as I mentioned in my post, and you'll be good to go without their cloud.