Attempt to get FDroid build working

capacitor-android/capacitor/proguard-rules.pro

@@ -0,0 +1,28 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Rules for Capacitor v3 plugins and annotations
+ -keep @com.getcapacitor.annotation.CapacitorPlugin public class * {
+     @com.getcapacitor.annotation.PermissionCallback <methods>;
+     @com.getcapacitor.annotation.ActivityCallback <methods>;
+     @com.getcapacitor.annotation.Permission <methods>;
+     @com.getcapacitor.PluginMethod public <methods>;
+ }
+
+ -keep public class * extends com.getcapacitor.Plugin { *; }
+
+# Rules for Capacitor v2 plugins and annotations
+# These are deprecated but can still be used with Capacitor for now
+-keep @com.getcapacitor.NativePlugin public class * {
+  @com.getcapacitor.PluginMethod public <methods>;
+}
+
+# Rules for Cordova plugins
+-keep public class * extends org.apache.cordova.* {
+  public <methods>;
+  public <fields>;
+}