https://nextjs.org/docs/basic-features/typescript Basic Features: TypeScript | Next.js Next.js supports TypeScript by default and has built-in types for pages and the API. You can get started with TypeScript in Next.js here. nextjs.org 사실 공홈에 굉장히 잘 나와있지만 귀찮을 미래의 나, 귀찮은 나같은 사람들을 위해 정리 You can create a TypeScript project with create-next-app using the --ts, --typescript flag like so: npx create-ne.....