ShelfBridge

Sync your audiobook reading progress from Audiobookshelf to Hardcover automatically.

Option 1: Environment Variables (Basic Setup)

# Download docker-compose.yml
curl -O https://raw.githubusercontent.com/rohit-purandare/ShelfBridge/main/docker-compose.yml

# Edit docker-compose.yml and uncomment/set your environment variables:
# SHELFBRIDGE_USER_0_ID: "your_username"
# SHELFBRIDGE_USER_0_ABS_URL: "https://your-audiobookshelf-server.com"
# SHELFBRIDGE_USER_0_ABS_TOKEN: "your_abs_token"
# SHELFBRIDGE_USER_0_HARDCOVER_TOKEN: "your_hardcover_token"

# Start the container
docker-compose up -d

Option 2: YAML Configuration (Basic + Advanced Features)

# Download and start
curl -O https://raw.githubusercontent.com/rohit-purandare/ShelfBridge/main/docker-compose.yml
docker-compose up -d

# Configure your settings
cp config/config.yaml.example config/config.yaml
# Edit config/config.yaml with your credentials and advanced settings
# Restart the container:
docker-compose restart

ShelfBridge supports Node.js 22 and 24. Node.js 24 LTS is recommended.

# Clone and install
git clone https://github.com/rohit-purandare/ShelfBridge.git
cd ShelfBridge && npm install

# Configure and start
cp config/config.yaml.example config/config.yaml
# Edit config/config.yaml with your tokens
node src/main.js start

ShelfBridge supports two configuration methods to fit different deployment needs:

Perfect for Docker deployments, container environments, and simple setups.

✅ Supports:

• User credentials (tokens, URLs)
• Core sync settings (workers, scheduling, thresholds)
• Rate limiting and performance tuning
• Safety settings (dry-run, progress protection)

Example:

SHELFBRIDGE_USER_0_ID=alice
SHELFBRIDGE_USER_0_ABS_URL=https://abs.example.com
SHELFBRIDGE_USER_0_ABS_TOKEN=your_abs_token
SHELFBRIDGE_USER_0_HARDCOVER_TOKEN=your_hardcover_token
SHELFBRIDGE_MIN_PROGRESS_THRESHOLD=5.0
SHELFBRIDGE_AUTO_ADD_BOOKS=true

Required for advanced features and complex multi-user setups.

✅ Everything from Environment Variables, plus:

• Library filtering - Include/exclude specific libraries
• Title/Author matching - Intelligent fuzzy matching for books without ASIN/ISBN
• Reread detection - Advanced progress regression protection
• Multi-user advanced setups - Different settings per user
• Complex family configurations - User-specific library preferences

Example:

global:
  min_progress_threshold: 5.0
  auto_add_books: true
  libraries:
    exclude: ['Podcasts', 'Samples'] # ← Not possible with env vars

users:
  - id: alice
    abs_url: https://abs.example.com
    abs_token: your_abs_token
    hardcover_token: your_hardcover_token
    libraries:
      include: ['Audiobooks', 'Fiction'] # ← Advanced per-user filtering

💡 Hybrid Approach: You can use both! Set basic credentials via environment variables and advanced features via YAML.

• Quick Start Guide - Get running in 5 minutes
• Installation Methods - Choose your setup method
• Docker Setup - Container deployment guide

• Configuration Guide - Setup guide for YAML & environment variables
• Configuration Reference - Complete technical reference for all settings

• CLI Reference - Command-line interface guide
• Feature Overview - All available features

v1.16.0: Added comprehensive title/author matching as a third fallback option! When books lack ASIN/ISBN identifiers, ShelfBridge now intelligently matches using Hardcover's search API with a sophisticated scoring algorithm. Features configurable confidence thresholds and supports matching across different formats (audiobook ↔ ebook).

v1.15.0: Added environment variable configuration support! Perfect for Docker deployments and homelab setups. Configure basic settings without YAML files. Environment variables provide ~85% feature parity with YAML configuration. Advanced features like library filtering still require YAML.

v1.14.0: Added multi-library filtering support! Now you can include/exclude specific Audiobookshelf libraries by name or ID. Configure globally or per-user to sync only the libraries you want. Enhanced debug command shows available libraries for easy configuration.

v1.13.0: Enhanced CLI interface and workflow improvements. Improved sync output display and user experience with better progress indicators and performance metrics.

v1.12.4: Comprehensive CLI interface, multi-user support, and advanced configuration options. Use node src/main.js <command> for direct access, or node src/main.js interactive for menu-driven mode.

📝 Note: The CHANGELOG.md file is now automatically updated on every release! Check the complete changelog for detailed version history.

• ✅ Flexible configuration - Environment variables for simple setups, YAML for advanced features
• ✅ Automatic sync - Scheduled synchronization between services
• ✅ Multi-user support - Sync multiple users from one server
• ✅ Library filtering - Sync specific libraries or exclude unwanted ones
• ✅ Progress protection - Prevent accidental progress regression
• ✅ Smart matching - Advanced 3-tier matching: ASIN → ISBN → Title/Author with intelligent fuzzy matching
• ✅ Docker support - Easy deployment with containers
• ✅ Comprehensive logging - Detailed sync reports and error tracking

See Contributing Guide for development setup and guidelines.

MIT License - see LICENSE file for details.