diff --git a/.github/workflows/android_main.yml b/.github/workflows/android_main.yml
index 89f516cc7686..a15a6f5318f8 100644
--- a/.github/workflows/android_main.yml
+++ b/.github/workflows/android_main.yml
@@ -67,15 +67,6 @@ jobs:
         path: app/build/reports/lint-results-*.html
         if-no-files-found: error
 
-    - name: Artifact dotconan2
-      uses: actions/upload-artifact@v4
-      with:
-        name: dotconan2
-        path: ~/.conan2
-        if-no-files-found: error
-        compression-level: 0
-        include-hidden-files: true
-
   test:
     runs-on: ubuntu-22.04
     needs: build
@@ -118,10 +109,13 @@ jobs:
     - name: install ndk
       run: echo "y" | sudo ${ANDROID_HOME}/cmdline-tools/latest/bin/sdkmanager --install "ndk;${{ env.ndk_version }}"
 
-    - uses: actions/download-artifact@v4
-      with:
-        name: dotconan2
-        path: ~/.conan2
+    - name: conan remote
+      run: |
+        conan remote remove "*"
+        conan remote add odr https://artifactory.opendocument.app/artifactory/api/conan/conan
+        conan remote add conancenter https://center2.conan.io
+    - name: conan profile
+      run: conan profile detect
 
     - name: Enable KVM group perms
       run: |
diff --git a/app/src/androidTest/java/at/tomtasche/reader/test/CoreTest.java b/app/src/androidTest/java/at/tomtasche/reader/test/CoreTest.java
index 06b5efce24f6..06f450b65132 100644
--- a/app/src/androidTest/java/at/tomtasche/reader/test/CoreTest.java
+++ b/app/src/androidTest/java/at/tomtasche/reader/test/CoreTest.java
@@ -24,9 +24,14 @@
 @LargeTest
 @RunWith(AndroidJUnit4.class)
 public class CoreTest {
-
     private File m_testFile;
 
+    @Before
+    public void initializeCore() {
+        Context appCtx = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        CoreWrapper.initialize(appCtx);
+    }
+
     @Before
     public void extractTestFile() throws IOException {
         Context appCtx = InstrumentationRegistry.getInstrumentation().getTargetContext();
@@ -58,17 +63,15 @@ private static void copy(InputStream src, File dst) throws IOException {
 
     @Test
     public void test() {
-        CoreWrapper core = new CoreWrapper();
-
         File cacheDir = InstrumentationRegistry.getInstrumentation().getTargetContext().getCacheDir();
-        File htmlFile = new File(cacheDir, "html");
+        File outputDir = new File(cacheDir, "output");
 
         CoreWrapper.CoreOptions coreOptions = new CoreWrapper.CoreOptions();
         coreOptions.inputPath = m_testFile.getAbsolutePath();
-        coreOptions.outputPath = htmlFile.getPath();
+        coreOptions.outputPath = outputDir.getPath();
         coreOptions.editable = true;
 
-        CoreWrapper.CoreResult coreResult = core.parse(coreOptions);
+        CoreWrapper.CoreResult coreResult = CoreWrapper.parse(coreOptions);
         Assert.assertEquals(0, coreResult.errorCode);
 
         File resultFile = new File(cacheDir, "result");
@@ -76,7 +79,7 @@ public void test() {
 
         String htmlDiff = "{\"modifiedText\":{\"3\":\"This is a simple test document to demonstrate the DocumentLoadewwwwr example!\"}}";
 
-        CoreWrapper.CoreResult result = core.backtranslate(coreOptions, htmlDiff);
+        CoreWrapper.CoreResult result = CoreWrapper.backtranslate(coreOptions, htmlDiff);
         Assert.assertEquals(0, coreResult.errorCode);
     }
 }
diff --git a/app/src/androidTest/java/at/tomtasche/reader/test/MainActivityTests.java b/app/src/androidTest/java/at/tomtasche/reader/test/MainActivityTests.java
index 2b9fd3a116bd..706b8a96cc6b 100644
--- a/app/src/androidTest/java/at/tomtasche/reader/test/MainActivityTests.java
+++ b/app/src/androidTest/java/at/tomtasche/reader/test/MainActivityTests.java
@@ -50,7 +50,6 @@
 @LargeTest
 @RunWith(AndroidJUnit4.class)
 public class MainActivityTests {
-
     private IdlingResource m_idlingResource;
     private static final Map<String, File> s_testFiles = new ArrayMap<>();
 
@@ -185,6 +184,4 @@ public void testPDF() {
                         .perform(click());
             });
     }
-
-
 }
diff --git a/app/src/main/java/at/tomtasche/reader/background/CoreWrapper.java b/app/src/main/java/at/tomtasche/reader/background/CoreWrapper.java
index b7f4e5e6226d..d151b9e370ba 100644
--- a/app/src/main/java/at/tomtasche/reader/background/CoreWrapper.java
+++ b/app/src/main/java/at/tomtasche/reader/background/CoreWrapper.java
@@ -9,13 +9,11 @@
 import java.util.List;
 
 public class CoreWrapper {
-
     static {
         System.loadLibrary("odr-core");
     }
 
     public static class GlobalParams {
-
         public String coreDataPath;
         public String fontconfigDataPath;
         public String popplerDataPath;
@@ -33,10 +31,10 @@ public static void initialize(Context context) {
 
         AssetExtractor ae = new AssetExtractor(context.getAssets());
         ae.setOverwrite();
-        ae.extract(assetsDirectory, "odrcore");
-        ae.extract(assetsDirectory, "fontconfig");
-        ae.extract(assetsDirectory, "poppler");
-        ae.extract(assetsDirectory, "pdf2htmlex");
+        ae.extract(assetsDirectory, "core/odrcore");
+        ae.extract(assetsDirectory, "core/fontconfig");
+        ae.extract(assetsDirectory, "core/poppler");
+        ae.extract(assetsDirectory, "core/pdf2htmlex");
 
         CoreWrapper.GlobalParams globalParams = new CoreWrapper.GlobalParams();
         globalParams.coreDataPath = odrCoreDataDirectory.getAbsolutePath();
@@ -47,7 +45,6 @@ public static void initialize(Context context) {
     }
 
     public static class CoreOptions {
-
         public boolean ooxml;
         public boolean txt;
         public boolean pdf;
@@ -68,27 +65,21 @@ public static CoreResult parse(CoreOptions options) {
         switch (result.errorCode) {
             case 0:
                 break;
-
             case -1:
                 result.exception = new CoreCouldNotOpenException();
                 break;
-
             case -2:
                 result.exception = new CoreEncryptedException();
                 break;
-
             case -3:
                 result.exception = new CoreUnknownErrorException();
                 break;
-
             case -4:
                 result.exception = new CoreCouldNotTranslateException();
                 break;
-
             case -5:
                 result.exception = new CoreUnexpectedFormatException();
                 break;
-
             default:
                 result.exception = new CoreUnexpectedErrorCodeException();
         }
@@ -140,7 +131,6 @@ public static void close() {
     public static native void stopServer();
 
     public static class CoreResult {
-
         public int errorCode;
 
         public Exception exception;
@@ -168,5 +158,4 @@ public static class CoreUnknownErrorException extends RuntimeException {}
     public static class CoreCouldNotEditException extends RuntimeException {}
 
     public static class CoreCouldNotSaveException extends RuntimeException {}
-
 }