The Swiyu team dropped the Play Integrity requirement on Android: https://github.com/swiyu-admin-ch/eidch-android-wallet/issues/1#issuecomment-3153829449 https:

The Swiyu team dropped the Play Integrity requirement on Android: https://github.com/swiyu-admin-ch/eidch-android-wallet/issues/1#issuecomment-3153829449 https://github.com/swiyu-admin-ch/eidch-android-wallet/issue... This means that the E-ID will be officially supported on AOSP based secure ROMs like GrapheneOS, without any requirement for Google services.