Create, edit and QA programmatic videos with Remotion (React-to-MP4). Use when the user asks to make, edit, render or fix a video, motion graphics, explainer, intro/outro, subtitles or vertical shorts — or when a task involves Remotion compositions, <Sequence> timing, or `npx remotion render`. Enforces deterministic frames, data-driven structure, Studio-first iteration and the render-QA-fix loop.
