Who wrote on NextJS?

Question

JavaScript

Who wrote on this shaitan "library"?

Pages has files:

index.js
order/index.js
support/index.js

and so on. So the question is actually, for SEO, fellow seologists advise making urls like /zakaz-tovara /podderjka (this is all for an example), how to do it in next.config.js or in some other way, so that next understands if it is /zakaz-tovara , then you need to take files from /order/index.js?

The site must be international, so it is not particularly correct to make a folder for each route.