Biome

The speaker demonstrates refactoring a two-year-old Next.js app with Cursor, combining AI assistance with deterministic codemods and careful manual review. They update dependencies, migrate Tailwind, replace ESLint with Biome, remove unused blog and MDX code, and consolidate components and styles. The careers pages are reworked to fetch job postings from Ashby and render them through a shared layout. The talk emphasizes treating AI as a pair programmer that handles repetitive work while the developer retains control of decisions and changes.