WP Rig is a development starter kit and build system for WordPress theme developers. It provides a structured environment and modern tooling to create themes that follow current best practices for performance, accessibility, and progressive enhancement. It is designed for developers who want a production-ready foundation without manually configuring complex build processes.

• Modern Build System: Automatically processes modern CSS (with nesting, custom properties) and JavaScript/TypeScript, optimizing assets for development and production.
• Integrated Development Workflow: Includes live reload, a local development server, and file watching to speed up the coding and testing cycle.
• Component-Based Architecture: Organizes theme logic into modular PHP components, making the codebase easier to maintain and extend.
• Block Development Tools: Provides CLI commands to scaffold and manage theme-scoped Gutenberg blocks, integrating them directly into the theme's build process.
• Production Optimization: A single command bundles the development theme into a clean, optimized, and production-ready theme directory, stripping out development-only files.