apple build and play build run build.prebuild (or apple.prebuild / play.prebuild) first, once per flow run;
--no-prebuild skips it, --dry only prints it. A Capacitor project's copied public/index.html must then be newer
than the last source commit and <webDir>/index.html, else the build stops (--allow-stale-web overrides). check
warns when stale without a prebuild; the build output and dry plan show the web bundle's sha256 and mtime.
The Capacitor project is also found in a monorepo (apps/native etc.); several ask for play.build.dir /
apple.build.*. Pitfall 23.
apple signing status|ensure: bundle id capabilities, a distribution certificate from a key made locally (kept in .storebound/signing, never printed), App Store profiles installed for Xcode; Developer ID 403 explained.
apple build / apple upload: xcodebuild archive + export with a generated ExportOptions.plist, next build number, App Store Connect API build upload (or altool), processing wait. Native, Capacitor, React Native, Flutter, Unity projects.
play build / play upload: Gradle bundleRelease with the upload key passed through the environment, next versionCode read back from the AAB, testing tracks only.
originality: offline Guideline 4.3 check (name, listing text, icon and screenshot perceptual hashes, project structure).
New skill build-and-sign; zero new dependencies.