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next

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The React Framework

nextjs.org

vercel/next.js

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--- title: runtime description: API reference for the runtime route segment config option. --- The `runtime` option allows you to select the JavaScript runtime used for rendering your route. ```tsx filename="layout.tsx | page.tsx | route.ts" switcher export const runtime = 'nodejs' // 'nodejs' ``` ```js filename="layout.js | page.js | route.js" switcher export const runtime = 'nodejs' // 'nodejs' ``` - **`'nodejs'`** (default) - **`'edge'`** (deprecated) > **Good to know**: > > - The Edge Runtime is deprecated. Remove the `runtime` export from your route files. See [Edge Runtime Deprecated](/docs/messages/edge-runtime-deprecated). > - When [Cache Components](/docs/app/api-reference/config/next-config-js/cacheComponents) is enabled, remove the `runtime` export, including `runtime = 'nodejs'`. Cache Components uses the default Node.js runtime and does not support the `runtime` route segment config. See [Migrating to Cache Components](/docs/app/guides/migrating-to-cache-components#runtime--edge). > - This option cannot be used in [Proxy](/docs/app/api-reference/file-conventions/proxy).