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How do you run Turbopack locally — `next dev --turbo` vs default?

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01

Understand the problem

The DX flow for Turbopack: HMR, persistent cache, and debugging incremental builds.

turbopackdxnextjs-15
02

Attempt it yourself

Sketch your approach before reading the solution — that's what interviews test.

Nudge consolestandby

Stuck? Beam a request up — the console returns a conceptual nudge that guides your logic without spoiling the implementation.

03

Study the solution

next dev --turbo (now default in Next 15) gives sub-100ms HMR via persistent .next/cache/turbo — use --show-config or TURBOPACK=1 to debug.

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04

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