Build hook crashes with null check exception when building for Android

When building a Flutter application for Android that includes cupertino_http as a dependency, the native assets build step fails with an unhandled exception in the package's build.dart hook. **Package version:** cupertino_http: 3.0.1 **Flutter version:** 3.44.0 (via FVM) **Platform:** Building for Android (target device: Samsung SM-G955F) **Error:** Unhandled exception: ``` Null check operator used on a null value #0 new CodeConfig._fromJson (package:code_assets/src/code_assets/config.dart:53:67) #1 HookConfigCodeConfig.code (package:code_assets/src/code_assets/config.dart:22:37) #2 main.<anonymous closure> (file:///.../cupertino_http-3.0.1/hook/build.dart:12:22) #3 build (package:hooks/src/api/build_and_link.dart:191:18) #4 main (file:///.../cupertino_http-3.0.1/hook/build.dart:11:9) ``` **What happened:** The build.dart hook unconditionally accesses config.code (line 12), which internally calls CodeConfig._fromJson. On an Android build, the code assets configuration appears to be null, causing the null-assertion operator (!) to throw at config.dart:53:67. **Expected behavior:** Since cupertino_http is an Apple-platform library (iOS/macOS), the build hook should gracefully skip native asset compilation when the target platform is not iOS or macOS, rather than crashing with an unhandled exception. **Reproduction steps:** Add cupertino_http: ^3.0.1 to a Flutter project's [pubspec.yaml](vscode-file://vscode-app/c:/Users/jasper.wauters/AppData/Local/Programs/Microsoft%20VS%20Code/6a49527b96/resources/app/out/vs/code/electron-browser/workbench/workbench.html) Run flutter build apk or flutter run targeting an Android device Observe the build failure during "Building assets for package:cupertino_http" **Workaround:** None found. The package cannot currently be included in a project that also targets Android, even if cupertino_http is only used in iOS/macOS code paths. **Additional context:** The hook should likely guard against non-Apple target platforms before attempting to resolve config.code, similar to: ``` if (config.targetOS != OS.iOS && config.targetOS != OS.macOS) { return; // No native assets needed on non-Apple platforms } ```