From 41cc6c0c9e36c8a4ad99aae3b401da19e3317589 Mon Sep 17 00:00:00 2001
From: Andrew Gunnerson <accounts+github@chiller3.com>
Date: Mon, 6 Apr 2026 21:52:17 -0400
Subject: [PATCH] Disable D2D Android backups

This switches the backup mechanism to key/value backups, but just points
to Android's BackupAgentHelper, which doesn't do anything by default.
This is more reliable than fiddling with the various full backup configs
and works on all supported versions of Android.

Android backups are disabled because they cannot be done safely. Even if
the database is excluded (preventing accidental data loss due to missing
files inside shared folders), it is still possible to have the same
backup restored to multiple devices, which could definitely cause sync
issues. Instead, users should just use the built in import/export
functionality.

Signed-off-by: Andrew Gunnerson <accounts+github@chiller3.com>
---
 app/src/main/AndroidManifest.xml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6460b72..9859815 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -56,8 +56,8 @@
 
     <application
         android:name=".MainApplication"
-        android:allowBackup="false"
-        android:fullBackupContent="false"
+        android:allowBackup="true"
+        android:backupAgent="android.app.backup.BackupAgentHelper"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:enableOnBackInvokedCallback="true"
@@ -72,6 +72,8 @@
             android:value="true" />
         <meta-data android:name="android.webkit.WebView.EnableSafeBrowsing"
             android:value="false" />
+        <meta-data android:name="com.google.android.backup.api_key"
+            android:value="unused" />
 
         <activity
             android:name=".settings.SettingsActivity"