Can I add a React application to an exist Next.js application?

[yuanweilei]

Goals

1.There were 2 React application, one of them contains a <div id="react-slot"> and another can be added in this <div>
https://react.dev/learn/add-react-to-an-existing-project
2.For some reason, I need to change one React to Next.js
3.After that, can I still use <div id="react-slot"> in the new Next.js application and load anthoer React application?

Non-Goals

Background

See Goals.

Proposal

None.