Just S3 Offload

Just S3 Offload 繁體中文版說明請參見 README.zh-TW.md | WordPress on S3 Implementation Guide | WordPress on S3 中文實作指南 A lightweight, dependency-free WordPress plugin to offload your Media Library to Amazon S3 or S3-compatible cloud storage (Cloudflare R2, Backblaze B2, DigitalOcean Spaces, MinIO, etc.). [!NOTE] Looking for Google Cloud Storage (GCS) support instead? Check out our sister project: Just GCS Offload. Unlike other bloated cloud storage plugins, Just S3 Offload is designed to be as small and efficient as possible. It implements a lightweight S3 REST client in pure PHP using cURL and native cryptographic functions for AWS Signature Version 4 (SigV4), completely bypassing the massive official AWS SDK. Features Zero External Dependencies: Weighs only a few dozen kilobytes. No bulky vendor/ folder or external libraries. AWS Signature Version 4 (SigV4): Securely signs requests in pure PHP using native cryptographic functions (hashhmac). S3-Compatible Storage Support: Out-of-the-box support for custom S3 endpoints (Cloudflare R2, MinIO, Backblaze B2, DigitalOcean Spaces, etc.) and path-style URLs. Automatic Media Offloading: Automatically uploads new images and all generated