How to make my Flutter (SDK 3.10) app and dependencies compatible with a "16 KB page size" limit (can't upgrade SDK)?

Question

Goal
I need a clear, step-by-step process I can follow to make the app + dependencies compatible with that 16 KB page-size constraint without upgrading Flutter SDK. I am looking for concrete actions I can take on:

• pubspec.yaml

• build flags

• Gradle settings

• iOS project settings

• or any packaging adjustments

Environment

• Flutter SDK: 3.10 (cannot upgrade)

• Target platforms: Android and/or iOS (mainly Android)

• Build mode: Release

• Full dependency list included below

What I need

1. What does "make compatible with 16 KB page size" mean for Flutter (Android/iOS)?
   If there are multiple interpretations, please list them + how to verify.

2. Since I cannot upgrade Flutter, what step-by-step process can I follow to:

   • detect issues with page-size usage

   • apply required build/config changes

   • verify the final binary is compliant with the 16 KB page-size limit

3. If third-party packages need patching due to native code, how do I minimally modify or replace them?

4. Does anything in this pubspec.yaml look incompatible with strict size or page-size constraints?

dependencies:
 flutter:
 sdk: flutter
 cupertino_icons: ^1.0.2
 bloc: ^8.1.2
 flutter_bloc: ^8.1.3
 bloc_concurrency: ^0.2.2
 equatable: ^2.0.5
 # firebase_auth: ^4.9.0
 # firebase_core: ^2.15.1
 pinput: ^3.0.1
 google_fonts: ^5.1.0
 fl_country_code_picker: ^0.1.5
 another_flushbar: ^1.12.30
 shared_preferences: ^2.2.1
 image_picker: ^1.0.4
 mobile_scanner: ^3.4.1
 permission_handler: ^11.0.0
 geocoding: ^2.1.0
 geolocator: ^9.0.2
 youtube_player_flutter: ^8.1.2
 lottie: ^2.6.0
 syncfusion_flutter_gauges: ^23.1.36
 hive: ^2.2.3
 dio: ^5.3.3
 hydrated_bloc: ^9.1.2
 path_provider: ^2.1.1
 location: ^5.0.3
 hive_flutter: ^1.1.0
 freezed_annotation: ^2.4.1
 flutter_blue_plus: ^1.29.3
 gauge_indicator: ^0.4.3
 flutter_svg: ^2.0.9
 flutter_intl: ^0.0.1
 url_launcher: ^6.2.2
 fluttertoast: ^8.2.4
 flutter_localizations:
 sdk: flutter
 intl: any
 pdf: ^3.11.1
 printing: ^5.12.0
dev_dependencies:
 flutter_test:
 sdk: flutter
 flutter_lints: ^2.0.0
 hive_generator: ^2.0.1
 build_runner: ^2.4.6
 freezed: ^2.4.5
 flutter_launcher_icons: "^0.13.1"
 change_app_package_name: ^1.1.0
 intl_translation:

• tomerpacific: What does it mean that you "cannot upgrade flutter"? You will need to make sure all of your third party libraries are also aligned to 16KB page sizes (check recent versions). I wrote an article that describes how to do this that may be of help.