burn0 dev
Runs your app with burn0 preloaded — no code changes needed.
npx burn0 dev -- node app.js
npx burn0 dev -- npm start
npx burn0 dev -- next dev
How it works
burn0 dev uses Node.js --require to preload burn0 before your app starts. This means:
- No
import '@burn0/burn0' needed in your code
- Works with any Node.js app
- Cost tracking is active for the entire process
Examples
# Run a Node.js script
npx burn0 dev -- node server.js
# Run an npm script
npx burn0 dev -- npm run start
# Run Next.js dev server
npx burn0 dev -- npx next dev
# Run with tsx
npx burn0 dev -- npx tsx src/index.ts
When to use burn0 dev vs import
| Approach | Best for |
|---|
import '@burn0/burn0' | Production, permanent tracking |
burn0 dev -- ... | Quick testing, no code changes |
Use burn0 dev when you want to try burn0 on an existing project without modifying any files. Use the import approach when you want permanent cost tracking.
