diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index fcfa971..a262395 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -15,3 +15,79 @@
 #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
 #   public *;
 #}
+
+-optimizationpasses 5
+-dontusemixedcaseclassnames
+-dontskipnonpubliclibraryclasses
+-dontskipnonpubliclibraryclassmembers
+-dontpreverify
+-verbose
+-keepattributes SourceFile,LineNumberTable
+-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
+
+-keep public class * extends android.app.Activity
+-keep public class * extends android.app.Application
+-keep public class * extends android.app.Service
+-keep public class * extends android.content.BroadcastReceiver
+-keep public class * extends android.content.ContentProvider
+-keep public class * extends android.app.backup.BackupAgentHelper
+-keep public class * extends android.preference.Preference
+
+-dontwarn com.crashlytics.**
+-keep class com.crashlytics.** { *; }
+
+-keep, includedescriptorclasses class net.dolden.dummyand.**
+-keep, includedescriptorclasses class kotlinx.serialization.**
+-keepnames class kotlin.jvm.internal.DefaultConstructorMarker
+-keep class androidx.core.app.CoreComponentFactory { *; }
+
+-keep class androidx.appcompat.widget.Toolbar { *** mMenuView; }
+-keep class androidx.appcompat.widget.ActionMenuView { *** mPresenter; }
+-keep class androidx.appcompat.widget.ActionMenuPresenter { *** mOverflowButton; }
+
+-keepnames class androidx.navigation.fragment.NavHostFragment
+
+-keepattributes *Annotation*, InnerClasses
+-dontnote kotlinx.serialization.SerializationKt
+-keep,includedescriptorclasses class net.dolden.dummyand.**$$serializer { *; } # <-- change package name to your app's
+
+-keep class org.jboss.netty.** { *; }
+-keep class org.spongycastle.**
+-keep class com.google.** { *; }
+-keep class android.support.v7.widget.SearchView { public *; }
+-keep class com.synnapps.carouselview.** { *; }
+-keepclassmembers class * extends android.app.Activity {
+	public void *(android.view.View);
+}
+
+# ServiceLoader support
+-keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
+-keepnames class kotlinx.coroutines.CoroutineExceptionHandler {}
+
+# Most of volatile fields are updated with AFU and should not be mangled
+-keepclassmembernames class kotlinx.** {
+    volatile <fields>;
+}
+
+-keepclassmembers enum * {
+    public static **[] values();
+    public static ** valueOf(java.lang.String);
+}
+
+-keep class * implements android.os.Parcelable {
+	public static final android.os.Parcelable$Creator *;
+}
+
+-dontwarn org.jboss.netty.**
+
+-dontwarn javax.naming.**
+-dontwarn java.nio.file.Files
+-dontwarn java.nio.file.Path
+-dontwarn java.nio.file.OpenOption
+-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
+-dontwarn okhttp3.**
+-dontwarn okio.**
+-dontwarn javax.annotation.Nullable
+-dontwarn javax.annotation.ParametersAreNonnullByDefault
+
+-ignorewarnings
\ No newline at end of file