Fibaro Hc2 and HA Integration

Dear HA experts

I want to do Integration between my Fibaro HC2 and my HA
The description og the integration is very basic - and i need some examples.

Can i use HA devices in Fibaro?
Can I use Fibaro devices in HA ?
What do they mean with plugins and device_config
Lists device specific parameter or behavior overrides.
Anyone using this ? - Please share :slight_smile:

I am brand new to using Home Assistance.
I installed version 8.2
I want to integrate with FIBARO HC2, but I can’t. I enter the address*, enter the login and password and get the message Unknown error occurred.
What am I doing wrong? Is the server address wrong?