diff --git a/forge-gui-android/pom.xml b/forge-gui-android/pom.xml
index 6835c95c78f..9ded00084db 100644
--- a/forge-gui-android/pom.xml
+++ b/forge-gui-android/pom.xml
@@ -694,5 +694,136 @@
                 </plugins>
             </build>
         </profile>
+        <profile>
+            <!-- test build signed with embedded debug.keystore from uber-signer -->
+            <id>android-dev-build</id>
+            <properties>
+                <app.id.dev>forge.app.dev</app.id.dev>
+                <packaging.type>apk</packaging.type>
+            </properties>
+            <build>
+                <!-- append generated snapshot-version property -->
+                <finalName>forge-dev-android-${snapshot-version}</finalName>
+                <plugins>
+                    <plugin>
+                        <artifactId>exec-maven-plugin</artifactId>
+                        <version>3.4.1</version>
+                        <groupId>org.codehaus.mojo</groupId>
+                        <executions>
+                            <execution>
+                                <id>SignV2</id>
+                                <phase>verify</phase>
+                                <goals>
+                                    <goal>exec</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                        <configuration>
+                            <workingDirectory>${pom.basedir}</workingDirectory>
+                            <executable>java</executable>
+                            <arguments>
+                                <argument>-jar</argument>
+                                <argument>${pom.basedir}/tools/uber-apk-signer.jar</argument>
+                                <argument>-a</argument>
+                                <argument>${pom.basedir}/target/</argument>
+                                <argument>--debug</argument>
+                            </arguments>
+                        </configuration>
+                    </plugin>
+                    <plugin>
+                        <groupId>com.simpligility.maven.plugins</groupId>
+                        <artifactId>android-maven-plugin</artifactId>
+                        <dependencies>
+                            <dependency>
+                                <groupId>javax.xml.bind</groupId>
+                                <artifactId>jaxb-api</artifactId>
+                                <version>2.3.1</version>
+                            </dependency>
+                            <dependency>
+                                <groupId>com.sun.xml.bind</groupId>
+                                <artifactId>jaxb-impl</artifactId>
+                                <version>2.3.4</version>
+                            </dependency>
+                            <dependency>
+                                <groupId>sun</groupId>
+                                <artifactId>misc</artifactId>
+                                <version>1</version>
+                                <scope>system</scope>
+                                <systemPath>${pom.basedir}/libs/sun-misc.jar</systemPath>
+                            </dependency>
+                        </dependencies>
+                        <version>4.6.2</version>
+                        <extensions>true</extensions>
+                        <configuration>
+                            <sign>
+                                <debug>false</debug>
+                            </sign>
+                            <renameManifestPackage>${app.id.dev}</renameManifestPackage>
+                            <sdk>
+                                <platform>${androidPlatform}</platform>
+                                <buildTools>${androidBuildTools}</buildTools>
+                            </sdk>
+                            <zipalign>
+                                <verbose>false</verbose>
+                            </zipalign>
+                            <dexForceJumbo>true</dexForceJumbo>
+                            <assetsDirectory>${project.basedir}/assets</assetsDirectory>
+                            <resourceDirectory>${project.basedir}/res</resourceDirectory>
+                            <nativeLibrariesDirectory>${project.basedir}/libs</nativeLibrariesDirectory>
+                            <extractDuplicates>true</extractDuplicates>
+                            <proguard>
+                                <skip>false</skip>
+                                <config>${project.basedir}/proguard.cfg</config>
+                            </proguard>
+                            <proguardProguardJarPath>${pom.basedir}/tools/proguard.jar</proguardProguardJarPath>
+                            <release>true</release>
+                            <dexCompiler>d8</dexCompiler>
+                            <d8>
+                                <minApi>26</minApi>
+                                <jvmArguments>
+                                    <argument>${build.min.memory}</argument>
+                                    <argument>${build.max.memory}</argument>
+                                </jvmArguments>
+                            </d8>
+                            <dex>
+                                <multi-dex>true</multi-dex>
+                                <jvmArguments>
+                                    <argument>${build.min.memory}</argument>
+                                    <argument>${build.max.memory}</argument>
+                                </jvmArguments>
+                                <dexArguments>--min-sdk-version=26</dexArguments>
+                            </dex>
+                        </configuration>
+                        <executions>
+                            <execution>
+                                <id>update-manifest</id>
+                                <goals>
+                                    <goal>manifest-merger</goal>
+                                </goals>
+                                <configuration>
+                                    <manifestVersionName>${snapshot-version}-dev</manifestVersionName>
+                                </configuration>
+                            </execution>
+                            <execution>
+                                <id>fix-provider-authorities</id>
+                                <phase>process-resources</phase>
+                                <goals>
+                                    <goal>manifest-update</goal>
+                                </goals>
+                                <configuration>
+                                    <versionCodeUpdateFromVersion>false</versionCodeUpdateFromVersion>
+                                    <manifestApplicationLabel>Forge (dev)</manifestApplicationLabel>
+                                    <manifestProviderAuthorities>
+                                        <io.sentry.android.core.SentryInitProvider>${app.id.dev}.SentryInitProvider</io.sentry.android.core.SentryInitProvider>
+                                        <io.sentry.android.core.SentryPerformanceProvider>${app.id.dev}.SentryPerformanceProvider</io.sentry.android.core.SentryPerformanceProvider>
+                                        <de.cketti.fileprovider.PublicFileProvider>${app.id.dev}.publicfileprovider</de.cketti.fileprovider.PublicFileProvider>
+                                    </manifestProviderAuthorities>
+                                </configuration>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
     </profiles>
 </project>
diff --git a/forge-gui-android/src/forge/app/Main.java b/forge-gui-android/src/forge/app/Main.java
index 490692d4d9c..a563ca5be69 100644
--- a/forge-gui-android/src/forge/app/Main.java
+++ b/forge-gui-android/src/forge/app/Main.java
@@ -90,6 +90,26 @@ public class Main extends AndroidApplication {
     private TextView progressText;
     private String versionString;
 
+    // The package name the resources are compiled under (stable across dev/prod).
+    // If you ever change the base app package, update this constant once.
+    private static final String RES_PKG_FALLBACK = "forge.app";
+
+    private int resId(String type, String name) {
+        // 1) Try fully-qualified with *runtime* package
+        int id = getResources().getIdentifier(name, type, getPackageName());
+        if (id != 0) return id;
+
+        // 2) Try fully-qualified with *fallback* resource package
+        if (!RES_PKG_FALLBACK.equals(getPackageName())) {
+            id = getResources().getIdentifier(name, type, RES_PKG_FALLBACK);
+            if (id != 0) return id;
+        }
+
+        android.util.Log.e("ForgeRes", "Missing resource " + type + "/" + name +
+                " for pkg=" + getPackageName() + " (also tried " + RES_PKG_FALLBACK + ")");
+        return 0;
+    }
+
     private AndroidClipboard getAndroidClipboard() {
         if (androidClipboard == null)
             androidClipboard = new AndroidClipboard();
@@ -148,13 +168,13 @@ public class Main extends AndroidApplication {
         } catch (Exception e) {
             versionString = "0.0";
         }
-        setContentView(getResources().getIdentifier("main", "layout", getPackageName()));
+        setContentView(resId("layout", "main"));
         mShortAnimationDuration = getResources().getInteger(android.R.integer.config_shortAnimTime);
         sharedPreferences = getPreferences(Context.MODE_PRIVATE);
-        progressBar = findViewById(getResources().getIdentifier("pBar", "id", getPackageName()));
+        progressBar = findViewById(resId("id", "pBar"));
         progressBar.setIndeterminate(true);
         progressBar.setVisibility(View.GONE);
-        progressText = findViewById(getResources().getIdentifier("pText", "id", getPackageName()));
+        progressText = findViewById(resId("id", "pText"));
         progressText.setVisibility(View.GONE);
 
         isMIUI = isMiUi();
@@ -308,8 +328,8 @@ public class Main extends AndroidApplication {
     private void loadGame(final String title, final String steps, boolean isLandscape, AndroidAdapter adapter, boolean permissiongranted, int totalRAM, boolean isTabletDevice, AndroidApplicationConfiguration config, boolean exception, String msg) {
         try {
             final Handler handler = new Handler();
-            forgeLogo = findViewById(getResources().getIdentifier("logo_id", "id", getPackageName()));
-            activeView = findViewById(getResources().getIdentifier("mainview", "id", getPackageName()));
+            forgeLogo = findViewById(resId("id", "logo_id"));
+            activeView = findViewById(resId("id", "mainview"));
             activeView.setBackgroundColor(Color.WHITE);
             forgeView = initializeForView(Forge.getApp(getAndroidClipboard(), adapter, ASSETS_DIR, false, !isLandscape, totalRAM, isTabletDevice, Build.VERSION.SDK_INT, Build.VERSION.RELEASE, getDeviceName()), config);
 
@@ -674,6 +694,11 @@ public class Main extends AndroidApplication {
             return new GitLogs().getLatestReleaseTag(releaseAtom);
         }
 
+        private String fileProviderAuthority() {
+            // Works for both prod (forge.app) and dev (forge.app.dev)
+            return getPackageName() + ".publicfileprovider";
+        }
+
         @Override
         public boolean openFile(String filename) {
             try {
@@ -688,7 +713,8 @@ public class Main extends AndroidApplication {
                     return true;
                 } else {
                     Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
-                    intent.setData(PublicFileProvider.getUriForFile(getContext(), "com.mydomain.publicfileprovider", new File(filename)));
+                    intent.setData(PublicFileProvider.getUriForFile(
+                          getContext(), fileProviderAuthority(), new File(filename)));
                     intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
                     startActivity(intent);
                     return true;