---

name: Docusaurus Advanced description: Deep dive into the Docusaurus configuration, plugins, and custom fields.

Docusaurus Configuration

Config File

• File: textbook/docusaurus.config.ts
• Type: TypeScript config.

Integrations

• API URL: Exposed to client via customFields.

  CopycustomFields: {
    apiUrl: process.env.DOCUSAURUS_API_URL || 'http://127.0.0.1:8000',
  }
  

• AuthBar: A custom navbar item registered in textbook/src/theme/NavbarItem (if swizzled) or imported specifically.

Plugins & Presets

• Preset: classic (standard docs, blog, pages).
• Sidebar: Defined in textbook/sidebars.ts.

Theme Swizzling

• Custom CSS: textbook/src/css/custom.css (contains specific overrides for dark mode and premium UI).
• Layout: Layout wrapper is often used in src/pages for standalone React pages within Docusaurus.

MDX

We support MDX for interactive components within documentation.