Yarn Package Manager

5.

5.1.

Configuration Files

5.1.1.

The `.yarnrc.yml` File

5.1.1.1.

Syntax and Structure

5.1.1.2.

Project-level Configuration

5.1.1.3.

Global Configuration

5.1.1.4.

Configuration Inheritance

5.1.2.

Legacy `.yarnrc` File

5.1.2.1.

Yarn 1 Compatibility

5.1.2.2.

Migration Considerations

5.2.

Common Configuration Options

5.2.1.

5.2.1.1.

Node Modules Mode

5.2.1.2.

Plug'n'Play Mode

5.2.1.3.

5.2.2.

`npmRegistryServer`

5.2.3.

5.2.4.

5.2.5.

5.2.6.

`enableImmutableInstalls`

5.2.7.

`enableGlobalCache`

5.2.8.

`compressionLevel`

5.2.9.

5.2.10.

`networkTimeout`

5.3.

Environment Variables

5.3.1.

Commonly Used Variables

5.3.2.

Overriding Configuration with Environment Variables

5.3.3.

CI/CD Environment Variables

5.4.

Managing Configuration

5.4.1.

Setting Configuration via CLI

5.4.2.

Viewing Current Configuration

5.4.3.

Resetting Configuration

5.4.4.

Configuration Validation

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6. Advanced Features