Shaders (shaders.com) for React / Next.js

Guides building GPU-accelerated visual effects in React / Next.js with the `shaders` npm package from shaders.com — declarative `<Shader>` component trees, composition (stacking, nesting, blend modes, masking), reactive props, dynamic prop drivers (`auto-animate`, `mouse-position`, `map`), shape (SDF) effects, color space, performance budget (RTT / generator vs filter), and SSR safety. Use when the user asks to add a "shader background", "WebGPU effect", "aurora / plasma / swirl / glass / cursor-trail" hero, mentions shaders.com, the `shaders/react` package, the `<Shader>` component, or wants animated GPU-rendered visuals in a React or Next.js app. Not for raw GLSL / WebG…