diff --git a/build.gradle.kts b/build.gradle.kts
index 3d8a023..f808b37 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -11,4 +11,8 @@ buildscript {
 plugins {
     alias(libs.plugins.android.application) apply false
     alias(libs.plugins.android.library) apply false
-}
\ No newline at end of file
+}
+
+subprojects {
+    group = "ee.ria.DigiDoc"
+}
diff --git a/libs/id-card-lib/build.gradle.kts b/libs/id-card-lib/build.gradle.kts
index 92cf980..1538780 100644
--- a/libs/id-card-lib/build.gradle.kts
+++ b/libs/id-card-lib/build.gradle.kts
@@ -28,9 +28,10 @@ dependencies {
     implementation(libs.bcprov.jdk18on)
 
     implementation(project(":libs:smart-card-reader-lib"))
-    implementation(project(":libs:card-utils-lib"))
+    // Provided at runtime by the consuming app (RIA DigiDoc utils-lib)
+    compileOnly(project(":libs:card-utils-lib"))
 
     testImplementation(libs.junit)
     testImplementation(libs.mockito.core)
     testImplementation(libs.truth)
-}
+}
\ No newline at end of file
diff --git a/libs/smart-card-reader-lib/build.gradle.kts b/libs/smart-card-reader-lib/build.gradle.kts
index f64bb05..352bd03 100644
--- a/libs/smart-card-reader-lib/build.gradle.kts
+++ b/libs/smart-card-reader-lib/build.gradle.kts
@@ -29,7 +29,8 @@ dependencies {
     implementation(libs.androidx.annotation)
     implementation(libs.bcprov.jdk18on)
 
-    implementation(project(":libs:card-utils-lib"))
+    // Provided at runtime by the consuming app (RIA DigiDoc utils-lib)
+    compileOnly(project(":libs:card-utils-lib"))
 
     testImplementation(platform(libs.junit.bom))
     testImplementation(libs.junit.jupiter)
diff --git a/settings.gradle.kts b/settings.gradle.kts
index f467ac9..82e3179 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -24,9 +24,13 @@ dependencyResolutionManagement {
 
 rootProject.name = "NFC-Android library and demo app"
 
-include(":demoapp")
-include(":demoapp:app")
-include(":demoapp:libdigidocpp")
+// Demo app is only needed when building this repository directly, not when
+// the libraries are consumed as a Gradle source dependency
+if (gradle.parent == null) {
+    include(":demoapp")
+    include(":demoapp:app")
+    include(":demoapp:libdigidocpp")
+}
 include(":libs")
 include(":libs:card-utils-lib")
 include(":libs:id-card-lib")