Netbox as ansible inventory plugin

I'm using the community edition of Netbox to document all my IPAM (IP-Address-Management), DNS and general infrastructure. The long-term goal is to deploy as much of the configuration from Netbox to reality through different means.

The first Configuration via Netbox should be my Bind9 DNS-Server, where I deploy it via Ansible. For that Ansible uses the Netbox-Plugin to fill the dynamic inventory. Many guides simply paste the sample inventory without any explanation and show how to run it.

plugin: netbox.netbox.nb_inventory
validate_certs: true
group_by:
  - device_roles
  - sites

I created a readonly API-Key. The Netbox-Url and Key are set via the Environment variables NETBOX_TOKEN and NETBOX_API for the URL, like https://netbox.homelab.internal. The inventory can me checked with ansible-inventory --list -i netbox_inv.yaml and uses the environment variables for accessing the instance.

Any more informations have to be registered as variables through api-calls via ansible.