diff --git a/app/build.gradle b/app/build.gradle
index 7d2a5f349..62c0c7003 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -162,14 +162,26 @@ android {
   }
 
   buildTypes {
+
     // Main build type for debugging
     debug {
+      buildConfigField "String", "KIWIX_DOWNLOAD_URL", "\"http://download.kiwix.org/\""
       // True breaks local variables being shown in breakpoints
       testCoverageEnabled false
       // Needed for instrumentation tests on Pre 5.0
       multiDexKeepProguard file('multidex-instrumentation-config.pro')
     }
 
+    mock_network {
+      initWith(buildTypes.debug)
+      // TODO add DI for the mock network
+    }
+
+    local_download_server {
+      initWith(buildTypes.debug)
+      buildConfigField "String", "KIWIX_DOWNLOAD_URL", "\"http://192.168.1.55/\""
+    }
+
     // Used to assess code coverage
     coverage {
       initWith debug
@@ -178,8 +190,9 @@ android {
 
     // Release Type
     release {
-
+      buildConfigField "String", "KIWIX_DOWNLOAD_URL", "\"http://download.kiwix.org/\""
     }
+
   }
 
   productFlavors {
diff --git a/app/src/main/java/org/kiwix/kiwixmobile/di/modules/NetworkModule.java b/app/src/main/java/org/kiwix/kiwixmobile/di/modules/NetworkModule.java
index 1d4321254..d1c39b357 100644
--- a/app/src/main/java/org/kiwix/kiwixmobile/di/modules/NetworkModule.java
+++ b/app/src/main/java/org/kiwix/kiwixmobile/di/modules/NetworkModule.java
@@ -15,7 +15,7 @@ import okhttp3.OkHttpClient;
 
 @Module public class NetworkModule {
 
-  public static String KIWIX_DOWNLOAD_URL = "http://download.kiwix.org/";
+  public static String KIWIX_DOWNLOAD_URL = BuildConfig.KIWIX_DOWNLOAD_URL; //"http://download.kiwix.org/";
   private final static String useragent = "kiwix-android-version:" + BuildConfig.VERSION_CODE;
 
   @Provides @Singleton OkHttpClient provideOkHttpClient() {
diff --git a/app/src/main/java/org/kiwix/kiwixmobile/zim_manager/library_view/LibraryPresenter.java b/app/src/main/java/org/kiwix/kiwixmobile/zim_manager/library_view/LibraryPresenter.java
index da199a010..e636f461d 100644
--- a/app/src/main/java/org/kiwix/kiwixmobile/zim_manager/library_view/LibraryPresenter.java
+++ b/app/src/main/java/org/kiwix/kiwixmobile/zim_manager/library_view/LibraryPresenter.java
@@ -1,6 +1,7 @@
 package org.kiwix.kiwixmobile.zim_manager.library_view;
 
 import android.content.Context;
+import android.util.Log;
 
 import org.kiwix.kiwixmobile.base.BasePresenter;
 import org.kiwix.kiwixmobile.database.BookDao;
@@ -33,6 +34,7 @@ public class LibraryPresenter extends BasePresenter<LibraryViewCallback> {
         .subscribe(library -> {
           getMvpView().showBooks(library.getBooks());
         }, error -> {
+          Log.w("kiwixLibrary", error.getLocalizedMessage());
           getMvpView().displayNoNetworkConnection();
         });
   }