What is YAML?

YAML is a human-readable format for data serialization across languages. This means it’s a good fit for human-edited configuration files, like those at Platform.sh. You can control nearly all aspects of your project’s build and deploy pipeline with YAML files.

For more information on this feature, please see the following page in the Upsun documentation:

https://docs.platform.sh/overview/yaml/what-is-yaml.html