Confused by firebase hosting documentation

[banshee]

Speaking as a fairly new next.js user, the documentation I'm looking for for Firebase is:

1. Static files served by Firebase Hosting.
2. Non-static served by cloud functions.

This is confusing:

The goal is to host the Next.js app on Firebase Cloud Functions with Firebase Hosting rewrite rules so our app is served from our Firebase Hosting URL. Each individual page bundle is served in a new call to the Cloud Function which performs the initial server render.

Doesn't sound like what I'm looking for, since I think it's saying that it's going to serve everything from cloud functions. (Also, the phrase "page bundle" never appears anywhere else in node.js documentation.)