LICENSE.txt

Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH under one or more contributor license agreements and licensed to you under a proprietary license.
You may not use this file except in compliance with the proprietary license.
The proprietary license can be either the Camunda Platform Self-Managed Free Edition license (available on Camunda’s website) or the Camunda Platform Self-Managed Enterprise Edition license (a copy you obtain when you contact Camunda).
The Camunda Platform Self-Managed Free Edition comes for free but only allows for usage of the software (file) in non-production environments.
If you want to use the software (file) in production, you need to purchase the Camunda Platform Self-Managed Enterprise Edition.