Reference

Glossary

Term	Meaning
EAS	Expo Application Services — Expo’s build, submit, and update tooling.
Build profile	A named build configuration in eas.json (development, preview, production).
Ad-hoc	An iOS distribution that installs only on devices whose UDID is in the provisioning profile.
Provisioning profile	The Apple file that says which app, certificate, and devices a build is allowed to run on.
UDID	A device’s unique identifier; must be registered for ad-hoc installs.
Dev client	A custom build of your app that includes its native modules (unlike Expo Go).
App Distribution	Firebase’s free channel for delivering test builds to testers.
APP_ENV	The environment selector (development / preview / production) that drives dynamic config.
CNG	Continuous Native Generation — Expo’s approach of generating ios//android/ on demand instead of committing them.
Prebuild	The npx expo prebuild command that performs CNG — generates native projects from app.config.ts and installed config plugins.
Config plugin	A function that modifies the generated native project during prebuild (e.g. adding a permission, an Info.plist key, a Gradle dependency).
Barrel	An index.ts that re-exports a module’s public surface.

Links

Expo & EAS

• Expo documentation
• EAS Build
• EAS Submit
• Expo Router
• Firebase App Distribution

Libraries

• TanStack Query
• NativeWind
• Tailwind CSS
• Zod
• React Hook Form
• date-fns

Testing

• React Native Testing Library
• Maestro