How do I test the PWA in realtime which is made with npx create-react-app --template cra-template-pwa?

[akash07k]

So as the subject line says, I'm struggling with the PWA made with the create-react-app.
I used the pwa template and when I'm doing npm start, then my service worker is not being executed/started.
However, if I'm building the app and then hosting it via serve (npm run build && serve -s build) then service worker is executing and starting fine.
Here my question is that it is very painful to build the app again and again even after a minor change in the app/service worker.
So it is not practical to test the built app as we won't be able to test our changes to service worker in realtime.
Any solution to this?
I want to continuously develop my app as well continuously test the changes in the service worker without building the app again again.
It becomes very challenging if we are doing some experiment with the service worker and our code requires constant change to the service worker or other related app files.