Problem Statement
How can you analyze your Next.js bundle size?
Explanation
The @next/bundle-analyzer plugin creates an interactive treemap visualization of your bundle showing which dependencies and pages consume the most space, helping identify optimization opportunities. Install the package, configure it in next.config.js with environment variable check, and run ANALYZE=true npm run build to generate the visualization. The analyzer shows separate visualizations for client, server, and Edge bundles, helps identify duplicate dependencies, large libraries that could be lazy-loaded, or unused code that could be removed, making bundle optimization data-driven and precise.