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-### Config file
-
-First time user? Copy the `config.py.example` file to `config.py`. This file is
-used for modifying filters and setting variables such as custom field names.
-
-```sh
-cp config.py.example config.py
-```
-
-### Set environment variables
-
-Set the following environment variables:
-
-```sh
-export ZABBIX_HOST="https://zabbix.local"
-export ZABBIX_USER="username"
-export ZABBIX_PASS="Password"
-export NETBOX_HOST="https://netbox.local"
-export NETBOX_TOKEN="secrettoken"
-```
-
-Or, you can use a Zabbix API token to login instead of using a username and
-password. In that case `ZABBIX_USER` and `ZABBIX_PASS` will be ignored.
-
-```sh
-export ZABBIX_TOKEN=othersecrettoken
-```
-
-If you are using custom SSL certificates for NetBox and/or Zabbix, you can set
-the following environment variable to the path of your CA bundle file:
-
-```sh
-export REQUESTS_CA_BUNDLE=/path/to/your/ca-bundle.crt
-```
-
-### NetBox custom fields
-
-Use the following custom fields in NetBox (if you are using config context for
-the template information then the zabbix_template field is not required):
-
-```
-* Type: Integer
-* Name: zabbix_hostid
-* Required: False
-* Default: null
-* Object: dcim > device
-```
-
-```
-* Type: Text
-* Name: zabbix_template
-* Required: False
-* Default: null
-* Object: dcim > device_type
-```
-
-You can make the `zabbix_hostid` field hidden or read-only to prevent human
-intervention.
-
-This is optional and there is a use case for leaving it read-write in the UI to
-manually change the ID. For example to re-run a sync.
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