Bought the stick. Recognized by hardware. Recognized and configured in add-on.
Not sure if I should also be adding the deConz integration. When I try to do it, and put in my HA IP and port 80 (the default), it shows this:
Unlock your deCONZ gateway to register with Home Assistant.
Go to deCONZ Settings -> Gateway -> Advanced Press "Authenticate app" button
When I press SUBMIT, I get:
Couldn't get an API key
So in addition to the error, there is no deCONZ Settings → Gateway → Advanced. I have a new deConz entry on the side menu, but when I press it all I get is this:
Solved: Instructions were incomplete, as is too often the case.