expo-build-cache-provider

A custom build cache provider for Expo apps, allowing developers to store and retrieve build cache using AWS S3 or Cloudflare R2 with simple environment-based configuration.

This helps speed up Expo builds by reusing cached artifacts across CI/CD pipelines or local machines.

✨ Features

• 🚀 Plug-and-play cache provider for Expo builds
• ☁️ Supports AWS S3 and Cloudflare R2
• 🔐 Secure configuration via .env
• 🧩 Provider-agnostic (easily extendable)
• ⚡ Optimized for CI/CD and local builds

📦 Installation

npm install expo-build-cache-provider

🔧 Environment Setup (process.env)

expo-build-cache-provider is configured entirely using environment variables.
Create a .env file in the root of your Expo project.

Required Environment Variables

# Access credentials
EXPO_PUBLIC_DB_ACCESS_KEY_ID=your_access_key_id
EXPO_PUBLIC_DB_SECRET_ACCESS_KEY=your_secret_access_key

# Bucket configuration
EXPO_PUBLIC_DB_BUCKET_NAME=your_bucket_name

# Cloudflare R2 & S3 URL only
EXPO_PUBLIC_DB_URL=your_account_id