I have a CI/CD pipeline and I build the nextjs app there then push only .next folder along with some config files then I start the application. I want to use ISR when a change made to the static pages, my question is, is ISR requires full project to rebuild static pages or does having build folder will be enough?

And my other question is there any way to tell nextjs to build the app on my pipeline and pull it from there when build is finished?