I have a hack for this-

But you'll have to wait a few more seconds after starting the server.

The hack is to create a .bat file and write the routes you are working on. (you can write all of them, but it will take more time)

Let's say I'm working on the dashboard today. like this:

curl http://localhost:3000/dashboard/home

curl http://localhost:3000/dashboard/help

curl http://localhost:3000/dashboard/something.....

Now just run your bat file just after starting your dev server.

Pro Tip: you can make files like dashboard-prerender.bat, landingpage.bat, api-routes.bat, all.bat for all different kind of needs.