Core framework behavior and build settings.
Enable React strict mode for highlighting potential problems.
Build output mode for deployment targets.
URL prefix when hosting under a subpath.
Append trailing slashes to all URLs.
Include the X-Powered-By response header.
Enable gzip compression for rendered content.
Output directory for the production build.
Remove the build directory before each build.
Generate ETag headers for rendered pages.
File extensions resolved as pages.
Image optimization and remote pattern configuration.
Serve images without the built-in optimization pipeline.
Allowed hostnames for remote image optimization.
Accepted output formats for optimized images.
Cache duration in seconds for optimized images.
Device width breakpoints for responsive image srcsets.
Width values used when a sizes prop is set on next/image.
URL handling and middleware behavior.
Disable automatic trailing slash redirects.
Disable URL normalization in middleware.
Type checking and linting behavior during builds.
Skip type checking during production builds.
Skip ESLint checks during production builds.
Directories to run ESLint on during builds.
Unstable and preview features that may change between releases.
Enable partial prerendering for streaming static shells.
Enable the React compiler for automatic memoization.
Maximum request body size for server actions.
Packages to tree-shake with optimized barrel file handling.
Enable Turbopack for the development server.
Generate typed route definitions for Link components.
Enable the instrumentation.ts lifecycle hook.
Package transpilation and server-side module resolution.
NPM packages to transpile from node_modules.
Packages excluded from server-side bundling.
Asset delivery and CDN configuration.
CDN prefix for static assets.