diff --git a/app/src/main/java/info/nightscout/androidaps/dependencyInjection/AppModule.kt b/app/src/main/java/info/nightscout/androidaps/dependencyInjection/AppModule.kt
index 9c78bd5642..548402341b 100644
--- a/app/src/main/java/info/nightscout/androidaps/dependencyInjection/AppModule.kt
+++ b/app/src/main/java/info/nightscout/androidaps/dependencyInjection/AppModule.kt
@@ -12,8 +12,6 @@ import info.nightscout.androidaps.interfaces.ActivePluginProvider
 import info.nightscout.androidaps.interfaces.CommandQueueProvider
 import info.nightscout.androidaps.interfaces.PluginBase
 import info.nightscout.androidaps.logging.AAPSLogger
-import info.nightscout.androidaps.logging.AAPSLoggerProduction
-import info.nightscout.androidaps.logging.L
 import info.nightscout.androidaps.plugins.configBuilder.PluginStore
 import info.nightscout.androidaps.plugins.configBuilder.ProfileFunction
 import info.nightscout.androidaps.plugins.configBuilder.ProfileFunctionImplementation
@@ -34,10 +32,6 @@ open class AppModule {
         return ProfileFunctionImplementation(injector, aapsLogger, sp, resourceHelper, activePlugin, fabricPrivacy)
     }
 
-    @Provides
-    @Singleton
-    fun provideAAPSLogger(l: L): AAPSLogger = AAPSLoggerProduction(l)
-
     @Provides
     fun providesPlugins(@PluginsModule.AllConfigs allConfigs: Map<@JvmSuppressWildcards Int, @JvmSuppressWildcards PluginBase>,
                         @PluginsModule.PumpDriver pumpDrivers: Lazy<Map<@JvmSuppressWildcards Int, @JvmSuppressWildcards PluginBase>>,
@@ -64,10 +58,7 @@ open class AppModule {
 
         @Binds fun bindContext(mainApp: MainApp): Context
         @Binds fun bindInjector(mainApp: MainApp): HasAndroidInjector
-
-        @Binds
-        fun bindActivePluginProvider(pluginStore: PluginStore): ActivePluginProvider
-
+        @Binds fun bindActivePluginProvider(pluginStore: PluginStore): ActivePluginProvider
         @Binds fun commandQueueProvider(commandQueue: CommandQueue): CommandQueueProvider
 
     }
diff --git a/core/build.gradle b/core/build.gradle
index 58ed7cbfb3..850732a959 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -51,6 +51,8 @@ dependencies {
     kapt "com.google.dagger:dagger-android-processor:$dagger_version"
     kapt "com.google.dagger:dagger-compiler:$dagger_version"
 
+    implementation 'org.slf4j:slf4j-api:1.7.30'
+
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
diff --git a/core/src/main/java/info/nightscout/androidaps/core/dependencyInjection/CoreModule.kt b/core/src/main/java/info/nightscout/androidaps/core/dependencyInjection/CoreModule.kt
index b7ec76d301..19e64742fc 100644
--- a/core/src/main/java/info/nightscout/androidaps/core/dependencyInjection/CoreModule.kt
+++ b/core/src/main/java/info/nightscout/androidaps/core/dependencyInjection/CoreModule.kt
@@ -4,6 +4,9 @@ import android.content.Context
 import android.preference.PreferenceManager
 import dagger.Module
 import dagger.Provides
+import info.nightscout.androidaps.logging.AAPSLogger
+import info.nightscout.androidaps.logging.AAPSLoggerProduction
+import info.nightscout.androidaps.logging.L
 import info.nightscout.androidaps.utils.resources.ResourceHelper
 import info.nightscout.androidaps.utils.resources.ResourceHelperImplementation
 import info.nightscout.androidaps.utils.sharedPreferences.SP
@@ -15,13 +18,14 @@ open class CoreModule {
 
     @Provides
     @Singleton
-    fun provideResources(context: Context): ResourceHelper {
-        return ResourceHelperImplementation(context)
-    }
+    fun provideResources(context: Context): ResourceHelper = ResourceHelperImplementation(context)
 
     @Provides
     @Singleton
-    fun provideSharedPreferences(context: Context, resourceHelper: ResourceHelper): SP {
-        return SPImplementation(PreferenceManager.getDefaultSharedPreferences(context), resourceHelper)
-    }
+    fun provideSharedPreferences(context: Context, resourceHelper: ResourceHelper): SP = SPImplementation(PreferenceManager.getDefaultSharedPreferences(context), resourceHelper)
+
+    @Provides
+    @Singleton
+    fun provideAAPSLogger(l: L): AAPSLogger = AAPSLoggerProduction(l)
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/info/nightscout/androidaps/logging/AAPSLogger.kt b/core/src/main/java/info/nightscout/androidaps/logging/AAPSLogger.kt
similarity index 100%
rename from app/src/main/java/info/nightscout/androidaps/logging/AAPSLogger.kt
rename to core/src/main/java/info/nightscout/androidaps/logging/AAPSLogger.kt
diff --git a/app/src/main/java/info/nightscout/androidaps/logging/AAPSLoggerProduction.kt b/core/src/main/java/info/nightscout/androidaps/logging/AAPSLoggerProduction.kt
similarity index 100%
rename from app/src/main/java/info/nightscout/androidaps/logging/AAPSLoggerProduction.kt
rename to core/src/main/java/info/nightscout/androidaps/logging/AAPSLoggerProduction.kt
diff --git a/app/src/main/java/info/nightscout/androidaps/logging/AAPSLoggerTest.kt b/core/src/main/java/info/nightscout/androidaps/logging/AAPSLoggerTest.kt
similarity index 100%
rename from app/src/main/java/info/nightscout/androidaps/logging/AAPSLoggerTest.kt
rename to core/src/main/java/info/nightscout/androidaps/logging/AAPSLoggerTest.kt
diff --git a/app/src/main/java/info/nightscout/androidaps/logging/BundleLogger.java b/core/src/main/java/info/nightscout/androidaps/logging/BundleLogger.java
similarity index 100%
rename from app/src/main/java/info/nightscout/androidaps/logging/BundleLogger.java
rename to core/src/main/java/info/nightscout/androidaps/logging/BundleLogger.java
diff --git a/app/src/main/java/info/nightscout/androidaps/logging/L.kt b/core/src/main/java/info/nightscout/androidaps/logging/L.kt
similarity index 95%
rename from app/src/main/java/info/nightscout/androidaps/logging/L.kt
rename to core/src/main/java/info/nightscout/androidaps/logging/L.kt
index 5decfceb53..b2156c4080 100644
--- a/app/src/main/java/info/nightscout/androidaps/logging/L.kt
+++ b/core/src/main/java/info/nightscout/androidaps/logging/L.kt
@@ -1,7 +1,5 @@
 package info.nightscout.androidaps.logging
 
-import androidx.preference.PreferenceManager
-import info.nightscout.androidaps.MainApp
 import info.nightscout.androidaps.utils.sharedPreferences.SP
 import java.util.*
 import javax.inject.Inject
diff --git a/app/src/main/java/info/nightscout/androidaps/logging/LTag.kt b/core/src/main/java/info/nightscout/androidaps/logging/LTag.kt
similarity index 100%
rename from app/src/main/java/info/nightscout/androidaps/logging/LTag.kt
rename to core/src/main/java/info/nightscout/androidaps/logging/LTag.kt
diff --git a/app/src/main/java/info/nightscout/androidaps/logging/StacktraceLoggerWrapper.kt b/core/src/main/java/info/nightscout/androidaps/logging/StacktraceLoggerWrapper.kt
similarity index 100%
rename from app/src/main/java/info/nightscout/androidaps/logging/StacktraceLoggerWrapper.kt
rename to core/src/main/java/info/nightscout/androidaps/logging/StacktraceLoggerWrapper.kt