The current working idea is that you wouldn't use index.js. There are Layout Components and Page Components, both explicitly defined by `layout.js` and `page.js

The current working idea is that you wouldn't use index.js. There are Layout Components and Page Components, both explicitly defined by `layout.js` and `page.js`. We are open to other opinions here, though. Others have shared similar sentiment: https://github.com/vercel/next.js/discussions/37136 https://github.com/vercel/next.js/discussions/37136