new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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Next.js App Router · all subjects

configuration & setup

4 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.

Enable Cache Components in next.config.ts

Cache Components are enabled by adding the `cacheComponents: true` option to the Next.js config file. This enables the `use cache` directive and related caching behavior. When Cache Components is enabled, GET Route Handlers follow the same prerendering model as pages.

Environment Variables access levels

Environment Variables are configuration values accessible at build time or request time. In Next.js, variables prefixed with NEXT_PUBLIC_ are exposed to the browser, while others are only available server-side.

Metadata definition and how to specify it

Metadata is information about a page used by browsers and search engines, such as title, description, and Open Graph images. In Next.js, define metadata using the metadata export or generateMetadata function in layout or page files.

instantInsights validationLevel configuration levels

The `experimental.instantInsights.validationLevel` in next.config.js supports two levels: `'warning'` (framework default, every Page and Default segment implicitly validated at warning level in dev only) and `'manual-warning'` (only segments with explicit `instant` are validated at warning level in dev only).

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