diff --git a/android/app/build.gradle.kts b/android/app/build.gradle.kts
index 8e2e799..2fd70a9 100644
--- a/android/app/build.gradle.kts
+++ b/android/app/build.gradle.kts
@@ -14,6 +14,10 @@ android {
         versionCode = providers.gradleProperty("kvitt.versionCode").orElse("1").get().toInt()
         versionName = providers.gradleProperty("kvitt.versionName").orElse("dev").get()
     }
+    // BuildConfig carries versionCode, versionName and DEBUG into AppBuildInfo (:data, D-041).
+    buildFeatures {
+        buildConfig = true
+    }
     buildTypes {
         debug {
             applicationIdSuffix = ".debug"
diff --git a/android/app/src/main/kotlin/se/hagstedt/kvitt/di/AppBuildInfoModule.kt b/android/app/src/main/kotlin/se/hagstedt/kvitt/di/AppBuildInfoModule.kt
new file mode 100644
index 0000000..ba4b12e
--- /dev/null
+++ b/android/app/src/main/kotlin/se/hagstedt/kvitt/di/AppBuildInfoModule.kt
@@ -0,0 +1,24 @@
+package se.hagstedt.kvitt.di
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import se.hagstedt.kvitt.BuildConfig
+import se.hagstedt.kvitt.data.di.AppBuildInfo
+import javax.inject.Singleton
+
+/**
+ * Both variants: the app's version (§10.6) and build type for `:data`'s `DataModule`, which Hilt installs in debug and
+ * release alike (it binds no `:core:model` interface, D-041).
+ */
+@Module
+@InstallIn(SingletonComponent::class)
+object AppBuildInfoModule {
+    @Provides @Singleton
+    fun buildInfo(): AppBuildInfo = AppBuildInfo(
+        versionCode = BuildConfig.VERSION_CODE,
+        versionName = BuildConfig.VERSION_NAME,
+        debug = BuildConfig.DEBUG,
+    )
+}
diff --git a/android/app/src/release/kotlin/se/hagstedt/kvitt/release/ReleaseDataModule.kt b/android/app/src/release/kotlin/se/hagstedt/kvitt/release/ReleaseDataModule.kt
new file mode 100644
index 0000000..6f69aab
--- /dev/null
+++ b/android/app/src/release/kotlin/se/hagstedt/kvitt/release/ReleaseDataModule.kt
@@ -0,0 +1,14 @@
+package se.hagstedt.kvitt.release
+
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import se.hagstedt.kvitt.data.di.DataBindingsModule
+
+/**
+ * Release builds only (src/release): binds every `:core:model` repository interface to its `:data` implementation by
+ * including [DataBindingsModule] (`@DisableInstallInCheck`, D-041). Debug binds the fakes instead (`DebugFakesModule`).
+ */
+@Module(includes = [DataBindingsModule::class])
+@InstallIn(SingletonComponent::class)
+interface ReleaseDataModule