Slidev Drawings

This handles live drawing and annotation in Slidev presentations using the built-in drauu library. You get pen, arrow, rectangle, ellipse, and eraser tools that work during presentations, which is useful for highlighting code, tracing execution flow, or circling key points on the fly. The config lets you persist drawings to SVG files, restrict drawing to presenter only, and sync annotations across all connected viewers in real time. Works with stylus input including Apple Pencil on iPad. The honest take is that this is mostly configuration reference since the drawing tools are already built into Slidev, but the keyboard shortcuts and best practices around color choices and when to clear annotations are genuinely helpful if you present often.