Remotion Best Practices — Production Video Project Tips
Collection of practical know-how from project structure to performance optimization, debugging, and deployment
As Remotion projects grow, systematic structure and optimization become essential.
Project structure: Place per-video directories in src/compositions/, reusable scene components in src/components/, and utilities (animation helpers, data fetchers) in src/lib/.
Performance optimization: (1) prefetch() remote assets to eliminate network waits during rendering (2) Resize images to needed resolution before use (3) React.memo() to prevent unnecessary re-renders per frame (4) --concurrency option for multi-threaded rendering.
Debugging: Navigate to specific frames in Remotion Studio's timeline to reproduce issues. Track per-frame values with console.log(frame), check detailed logs with --log=verbose flag.
CI/CD: Run npx remotion render in GitHub Actions with Chrome and FFmpeg dependencies cached. A typical pipeline uploads rendering results to S3 and sends Slack notifications.
How It Works
Organize project with src/compositions/, src/components/, src/lib/ directory structure
Pre-download remote images/fonts before rendering with prefetch()
Prevent re-rendering of unchanged parts per frame with React.memo() and useMemo()
Use --concurrency=50% to allocate half CPU cores for rendering (rest for OS)
Build CI/CD pipeline with GitHub Actions + Docker (with Chrome/FFmpeg) + S3 upload
Pros
- ✓ Eliminate network bottlenecks with prefetch → dramatically reduce rendering time
- ✓ Remove unnecessary computation with React.memo → reduce per-frame rendering time
- ✓ CI/CD automation: code push → auto video generation → S3 deployment fully unattended
Cons
- ✗ CI environment setup: initial setup of Chrome + FFmpeg in Docker is tedious
- ✗ Over-optimization: abusing memo/prefetch in simple projects increases complexity