mdx-hybrid

A hybrid MDX compiler that combines Rust's compilation speed with JavaScript's plugin compatibility, providing 5-20x build time improvements for projects without plugins.

🎉 Status

v0.0.1 - Fully functional with Rust engine delivering impressive performance gains!

Features

• 🚀 Blazing Fast: 5-20x faster compilation with Rust engine (benchmarked)
• 🔧 Full Compatibility: Falls back to JS engine for plugin support
• 🎯 Smart Selection: Automatically chooses the best engine
• 📦 Drop-in Replacement: Works with existing MDX setups
• 🔌 Framework Integrations: Vite, Astro, and more

Performance

Real-world benchmark results:

• Small files (< 1KB): ~20x faster with Rust
• Medium files (2-3KB): ~7x faster with Rust
• Large files (> 10KB): ~5x faster with Rust

Installation

npm install @jp-knj/mdx-hybrid-core
# or
pnpm add @jp-knj/mdx-hybrid-core
# or
yarn add @jp-knj/mdx-hybrid-core

Usage

Basic Usage

import { compile } from '@jp-knj/mdx-hybrid-core'

const result = await compile('# Hello MDX!')
console.log(result.code)

With Options

import { compile } from '@jp-knj/mdx-hybrid-core'

const result = await compile(mdxContent, {
  // Force specific engine
  engine: 'rust', // 'js' | 'rust' | 'auto' (default)
  
  // Standard MDX options
  development: true,
  jsx: true,
  jsxRuntime: 'automatic',
  jsxImportSource: 'react',
})

Vite Integration

// vite.config.js
import { mdxHybrid } from '@jp-knj/mdx-hybrid-vite'

export default {
  plugins: [mdxHybrid()]
}

Astro Integration

// astro.config.mjs
import { mdxHybrid } from '@jp-knj/mdx-hybrid-astro'

export default {
  integrations: [mdxHybrid()]
}

Engine Selection

The compiler automatically selects the appropriate engine:

1. Explicit: Use the engine specified in options (engine: 'rust' or engine: 'js')
2. Plugins: Automatically use JS engine if remark/rehype plugins are present
3. Performance: Use Rust engine by default for maximum speed
4. Fallback: Gracefully fall back to available engine if one fails

When Each Engine is Used

• Rust Engine ⚡️

  • No plugins required
  • Maximum compilation speed needed
  • Production builds without customization

• JS Engine 🔌

  • Remark/Rehype plugins needed
  • Custom transformations required
  • Development with hot reload (still fast!)

Compatibility

Feature	JS Engine	Rust Engine
Basic MDX	✅	✅
remarkPlugins	✅	❌
rehypePlugins	✅	❌
JSX Runtime	✅	✅
Development Mode	✅	✅
Source Maps	✅	⚠️ Basic

Binary Distribution

The Rust engine uses platform-specific native binaries for optimal performance. These binaries are automatically downloaded during installation based on your platform.

Supported Platforms

Platform	Architecture	Package
macOS	x64 (Intel)	@jp-knj/mdx-hybrid-engine-rust-darwin-x64
macOS	ARM64 (Apple Silicon)	@jp-knj/mdx-hybrid-engine-rust-darwin-arm64
Windows	x64	@jp-knj/mdx-hybrid-engine-rust-win32-x64-msvc
Linux	x64 (glibc)	@jp-knj/mdx-hybrid-engine-rust-linux-x64-gnu
Linux	x64 (musl)	@jp-knj/mdx-hybrid-engine-rust-linux-x64-musl

The correct binary is automatically selected during installation via npm's optionalDependencies.

Development

# Install dependencies
pnpm install

# Build all packages
pnpm build

# Run tests
pnpm test

# Run benchmarks
pnpm bench

# Start development mode
pnpm dev

Publishing Binaries

The project uses GitHub Actions to automatically build and publish platform-specific binaries:

# Build Rust engine for current platform
pnpm --filter @jp-knj/mdx-hybrid-engine-rust build

# Manually publish binaries (requires npm access)
pnpm --filter @jp-knj/mdx-hybrid-engine-rust publish:binaries

# Dry run to test publishing
pnpm --filter @jp-knj/mdx-hybrid-engine-rust publish:binaries -- --dry-run

Binary publishing is automated via GitHub Actions when releasing a new version.

License

MIT