Change language with next-i18next library without change the locale in the router

Question

I have a "problem". I want to implement the i18n in my Next.js web app, using this library next-i18next. It is working if I change the route with the correct locale, like so localhost:3000/en --> localhost:3000/it, however the result tha I would like to obtain is to change the language without changing the route. Basically I would like to not use the feature Internationalized Routing of Next.js with the implementation of i18n. I'm new in the environment of Next.js. Thanks in advance for the responses