So I setup HA in my new home and got an Ecobee thermostat setup. I really enjoyed using Ecobee in my previous home. When I went to go setup the integration in HA, I of course found that the Ecobee integration is broken due to API keys being unavailable. What I have found is that adding the thermostat as a HomeKit device via HomeKit Controller is what's recommended. However, when I try to add a HomeKit device, HA says it can't find any unpaired devices.
The Ecobee is on the same network as the HA host.