Want to add a build and runtime checksum to Android 12 or 13 AOSP or LinesgeOS Settings, TvSettings apps.

They must match for the app to open to prevent unpacking, tampering with the apps.

https://github.com/LineageOS/android_packages_apps_TvSettings

https://github.com/LineageOS/android_packages_apps_Settings

I only find generic code not exact code to add for the above listed apps.