What a build includes
A build is a whole app, not a screen. You get every screen it ships with, the navigation between them, the state holding it together, and every animation flying around inside it, including the ones that were never listed as their own drop.
Same stack as the rest of the shop: React Native and Expo, Reanimated for the motion, Gesture Handler for the touch, and Skia where an effect needs a real shader. TypeScript throughout. Each build lists its dependencies and the Expo SDK it targets on its own page.
What people do with them
Most buyers are not shipping the app as-is. They want to see how the pieces fit at app scale, which is the part a single component can never show you: how a gesture on one screen survives a navigation, where the state actually lives, what the file layout looks like when there are twelve animations in one place. Then they lift the two or three screens they came for.
Commercial use is covered. The terms are on the license page. If you want the individual pieces instead of the whole app, those are the drops.