# What are environment variables?

As part of [datarhei Core](broken://pages/sadroh2PKIjNwWZ8ICF1), you can find documentation for the various environments on GitHub.

{% embed url="<https://github.com/datarhei/core>" %}
**External URL:** List with all environment variables on GitHub
{% endembed %}

![Fig. 1: Example environment variables with locked fields are marked with ENV](/files/ovPKshUJ6m7Anw5kvHxF)

## Learn more

{% content-ref url="/pages/Os2NcMmPtTG6sKqCztmb" %}
[Why do I see ENV and cannot select anything?](/restreamer/knowledge-base/troubleshooting/why-do-i-see-env-and-cannot-select-anything.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MYd\_eWFK56LZQkA-iAN" %}
[User Guides](/restreamer/knowledge-base/user-guides.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MXb\_m72sKwXpgM5udfT" %}
[Knowledge Base](/restreamer/knowledge-base/manual.md)
{% endcontent-ref %}


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