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Index

docs/latest/advanced/index.md

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This section of the documentation describes advanced functionality of Fresh.

App wrapper - Customize the outer HTML structure
Layouts - Define programmatic layouts
Error handling - Custom error and 404 pages
Partials - Client-side partial page updates
Forms - Handle form submissions
Define helpers - Type-safe route and middleware helpers
Serialization - What types can be passed as island props
Environment variables - Use env vars in islands
Modifying <head> - Manage meta tags, titles, and styles
Vite plugin options - Configure the Fresh Vite plugin
OpenTelemetry - Built-in tracing and observability
API Reference - All public exports from Fresh
Troubleshooting - Common issues and solutions
Builder (Legacy) - Pre-Vite build system