Just GCS Offload

Just GCS Offload 繁體中文版說明請參見 README.zh-TW.md | WordPress on GCS Implementation Guide | WordPress on GCS 中文實作指南 A lightweight, dependency-free WordPress plugin to offload your Media Library to a Google Cloud Storage (GCS) bucket. [!NOTE] Looking for Amazon S3 or S3-compatible (R2, B2, Spaces, MinIO) storage support instead? Check out our sister project: Just S3 Offload. Unlike other bloated cloud storage plugins, Just GCS Offload is designed to be as small and efficient as possible. It implements a lightweight GCS REST client in pure PHP using cURL and native OpenSSL JWT signing for Service Account authentication, completely bypassing the massive official Google Cloud SDK. Features Zero External Dependencies: Weighs only a few dozen kilobytes. No bulky vendor/ folder or external libraries. Service Account JWT Authentication: Authenticates securely using a Google Service Account JSON key, utilizing native OpenSSL (opensslsign) for RS256 signing. Automatic Media Offloading: Automatically uploads new images and all generated sub-sizes (thumbnails) to GCS during upload. URL & Srcset Rewriting: Seamlessly rewrites image URLs and responsive srcset paths to point to GCS or a cus