# Configuring environment settings

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Environment settings were previously referred to as environment variables.
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Tonic Structural uses environment settings for many of its configuration options. For example, the `ENABLE_LOG_COLLECTION` environment setting determines whether you share logs with Tonic.ai.

Structural also uses environment settings to enable custom generators and pre-release features for customers.

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Self-hosted instances</strong><br><br>Configure environment settings on a self-hosted instance of Structural.</td><td><a href="environment-variables-setting/self-hosted-instances">self-hosted-instances</a></td></tr><tr><td><strong>Structural Cloud</strong><br><br>Configure available environment settings for a Structural Cloud organization.</td><td><a href="environment-variables-setting/structural-cloud">structural-cloud</a></td></tr></tbody></table>