This is a React-based single-page application that converts Excalidraw drawings into animated SVGs. It provides both an editing mode (using the Excalidraw library) where users can configure animation order and duration per element, and an animate mode where the resulting SVG is rendered with playback controls (play/pause/step/reset). The core animation logic is implemented using SMIL (SVG animations), patching SVG elements with `animate`, `animateMotion`, and `textPath` elements. Users can load drawings from files, libraries, or shareable URLs. The app also exports to SVG and WebM (via screen capture). It is published as an npm package for programmatic use, exposing `animateSvg`, `getBeginTimeList`, and export utilities. The codebase is modern (React 19, TypeScript, Vite) and includes comprehensive testing with Playwright. Architecturally, it operates as a client-side SPA with two views (edit and animate) and a toolbar for loading/playback/export.