Turbopack

Turbopack is an incremental bundler focused on very fast development feedback, especially in Next.js. It caches and recomputes only the parts of the module graph affected by a change.

Conceptually: fine-grained invalidation beats rebuilding entire graphs on every save—similar philosophy to other incremental systems, tuned for large app dev servers.

On interviews: incremental compilation model, Next.js integration maturity, dev versus production support per version, and plugin parity expectations.

Common pitfalls: assuming Turbopack equals mature Webpack feature coverage; skipping production verification; optimizing dev only while release path differs.

The trade-off is dev velocity versus confidence in production bundling and plugin ecosystems.

Checklist:

• Understand incremental invalidation model.
• Verify production support for your stack version.
• Compare dev metrics with real project size.
• Keep release pipeline explicitly validated.