1

Link via Expo Dashboard

From your Expo project settings, link Sentry to auto-create a project.
2

Manual setup (optional)

Add plugin to app config:
{
  "expo": {"plugins": [["@sentry/react-native/expo", {"url": "https://sentry.io/", "project": "your-project", "organization": "your-org"}]]}
}
Add env:
EXPO_PUBLIC_SENTRY_DSN=https://...@sentry.io/...
SENTRY_AUTH_TOKEN=sntryu_...
SENTRY_DISABLE_AUTO_UPLOAD=true