diff --git a/app/lib/controller/pref_controller.dart b/app/lib/controller/pref_controller.dart
index 585e4fca..38be434c 100644
--- a/app/lib/controller/pref_controller.dart
+++ b/app/lib/controller/pref_controller.dart
@@ -27,9 +27,10 @@ part 'pref_controller/util.dart';
 class PrefController {
   PrefController(this.pref);
 
-  Future<bool> setAccounts(List<Account> value) => _set<List<Account>>(
+  Future<bool> setAccounts(List<Account>? value) => _setOrRemove<List<Account>>(
         controller: _accountsController,
         setter: (pref, value) => pref.setAccounts3(value),
+        remover: (pref) => pref.setAccounts3(null),
         value: value,
       );
 
diff --git a/app/lib/controller/pref_controller/util.dart b/app/lib/controller/pref_controller/util.dart
index 3034abdc..a8ae21d0 100644
--- a/app/lib/controller/pref_controller/util.dart
+++ b/app/lib/controller/pref_controller/util.dart
@@ -1,6 +1,15 @@
 part of '../pref_controller.dart';
 
 extension on Pref {
+  Future<bool> setAccounts3(List<Account>? value) {
+    if (value == null) {
+      return provider.remove(PrefKey.accounts3);
+    } else {
+      final jsons = value.map((e) => jsonEncode(e.toJson())).toList();
+      return provider.setStringList(PrefKey.accounts3, jsons);
+    }
+  }
+
   int? getHomeAlbumsSort() => provider.getInt(PrefKey.homeAlbumsSort);
   int getHomeAlbumsSortOr(int def) => getHomeAlbumsSort() ?? def;
   Future<bool> setHomeAlbumsSort(int value) =>
diff --git a/app/lib/entity/pref.dart b/app/lib/entity/pref.dart
index 43360785..57e8b603 100644
--- a/app/lib/entity/pref.dart
+++ b/app/lib/entity/pref.dart
@@ -29,8 +29,6 @@ class Pref {
           Future<bool> Function(PrefKey key, T value) setFn) =>
       setFn(key, value);
 
-  Future<bool> _remove(PrefKey key) => provider.remove(key);
-
   final PrefProvider provider;
 
   static Pref? _inst;
diff --git a/app/lib/entity/pref/extension.dart b/app/lib/entity/pref/extension.dart
index 043d81da..42ad9fe7 100644
--- a/app/lib/entity/pref/extension.dart
+++ b/app/lib/entity/pref/extension.dart
@@ -19,14 +19,6 @@ extension PrefExtension on Pref {
   }
 
   List<Account> getAccounts3Or(List<Account> def) => getAccounts3() ?? def;
-  Future<bool> setAccounts3(List<Account>? value) {
-    if (value == null) {
-      return _remove(PrefKey.accounts3);
-    } else {
-      final jsons = value.map((e) => jsonEncode(e.toJson())).toList();
-      return provider.setStringList(PrefKey.accounts3, jsons);
-    }
-  }
 
   int? getHomePhotosZoomLevel() => provider.getInt(PrefKey.homePhotosZoomLevel);
   int getHomePhotosZoomLevelOr(int def) => getHomePhotosZoomLevel() ?? def;
diff --git a/app/lib/widget/settings/account/bloc.dart b/app/lib/widget/settings/account/bloc.dart
index f615da42..76370dc4 100644
--- a/app/lib/widget/settings/account/bloc.dart
+++ b/app/lib/widget/settings/account/bloc.dart
@@ -3,12 +3,11 @@ part of '../account_settings.dart';
 @npLog
 class _Bloc extends Bloc<_Event, _State> with BlocLogger {
   _Bloc({
-    required DiContainer container,
     required Account account,
+    required this.prefController,
     required this.accountPrefController,
     this.highlight,
-  })  : _c = container,
-        super(_State.init(
+  }) : super(_State.init(
           account: account,
           label: accountPrefController.accountLabelValue,
           shareFolder: accountPrefController.shareFolderValue,
@@ -95,7 +94,7 @@ class _Bloc extends Bloc<_Event, _State> with BlocLogger {
     ));
     final revert = state.account;
     try {
-      final accounts = _c.pref.getAccounts3()!;
+      final accounts = prefController.accountsValue;
       if (accounts.contains(ev.account)) {
         // conflict with another account. This normally won't happen because
         // the app passwords are unique to each entry, but just in case
@@ -109,7 +108,7 @@ class _Bloc extends Bloc<_Event, _State> with BlocLogger {
       }
 
       accounts[index] = ev.account;
-      if (!await _c.pref.setAccounts3(accounts)) {
+      if (!await prefController.setAccounts(accounts)) {
         _log.severe("[_onSetAccount] Failed while setAccounts3: ${ev.account}");
         throw const _WritePrefError();
       }
@@ -153,7 +152,7 @@ class _Bloc extends Bloc<_Event, _State> with BlocLogger {
     emit(state.copyWith(error: ExceptionEvent(ev.error, ev.stackTrace)));
   }
 
-  final DiContainer _c;
+  final PrefController prefController;
   final AccountPrefController accountPrefController;
   final AccountSettingsOption? highlight;
 
diff --git a/app/lib/widget/settings/account_settings.dart b/app/lib/widget/settings/account_settings.dart
index 2e3c8d60..6e82b5ca 100644
--- a/app/lib/widget/settings/account_settings.dart
+++ b/app/lib/widget/settings/account_settings.dart
@@ -3,16 +3,14 @@ import 'dart:async';
 import 'package:copy_with/copy_with.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
-import 'package:kiwi/kiwi.dart';
 import 'package:logging/logging.dart';
 import 'package:nc_photos/account.dart';
 import 'package:nc_photos/app_localizations.dart';
 import 'package:nc_photos/bloc_util.dart';
 import 'package:nc_photos/controller/account_controller.dart';
 import 'package:nc_photos/controller/account_pref_controller.dart';
-import 'package:nc_photos/di_container.dart';
+import 'package:nc_photos/controller/pref_controller.dart';
 import 'package:nc_photos/entity/person.dart';
-import 'package:nc_photos/entity/pref.dart';
 import 'package:nc_photos/exception_event.dart';
 import 'package:nc_photos/help_utils.dart' as help_util;
 import 'package:nc_photos/k.dart' as k;
@@ -71,8 +69,8 @@ class AccountSettings extends StatelessWidget {
     final accountController = context.read<AccountController>();
     return BlocProvider(
       create: (_) => _Bloc(
-        container: KiwiContainer().resolve(),
         account: accountController.account,
+        prefController: context.read(),
         accountPrefController: accountController.accountPrefController,
         highlight: highlight,
       ),
diff --git a/app/lib/widget/settings/expert/bloc.dart b/app/lib/widget/settings/expert/bloc.dart
index 36be69a2..c94e02ef 100644
--- a/app/lib/widget/settings/expert/bloc.dart
+++ b/app/lib/widget/settings/expert/bloc.dart
@@ -11,12 +11,10 @@ class _Error {
 @npLog
 class _Bloc extends Bloc<_Event, _State>
     with BlocLogger, BlocForEachMixin<_Event, _State> {
-  _Bloc(
-    DiContainer c, {
+  _Bloc({
     required this.db,
     required this.prefController,
-  })  : _c = c,
-        super(_State.init(
+  }) : super(_State.init(
           isNewHttpEngine: prefController.isNewHttpEngineValue,
         )) {
     on<_Init>(_onInit);
@@ -42,7 +40,7 @@ class _Bloc extends Bloc<_Event, _State>
       _ClearCacheDatabase ev, Emitter<_State> emit) async {
     _log.info(ev);
     try {
-      final accounts = _c.pref.getAccounts3Or([]);
+      final accounts = prefController.accountsValue;
       await db.clearAndInitWithAccounts(accounts.toDb());
       emit(state.copyWith(lastSuccessful: ev));
     } catch (e, stackTrace) {
@@ -56,7 +54,6 @@ class _Bloc extends Bloc<_Event, _State>
     prefController.setNewHttpEngine(ev.value);
   }
 
-  final DiContainer _c;
   final NpDb db;
   final PrefController prefController;
 
diff --git a/app/lib/widget/settings/expert_settings.dart b/app/lib/widget/settings/expert_settings.dart
index 025d36e3..29255f12 100644
--- a/app/lib/widget/settings/expert_settings.dart
+++ b/app/lib/widget/settings/expert_settings.dart
@@ -3,14 +3,11 @@ import 'dart:async';
 import 'package:copy_with/copy_with.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
-import 'package:kiwi/kiwi.dart';
 import 'package:logging/logging.dart';
 import 'package:nc_photos/app_localizations.dart';
 import 'package:nc_photos/bloc_util.dart';
 import 'package:nc_photos/controller/pref_controller.dart';
 import 'package:nc_photos/db/entity_converter.dart';
-import 'package:nc_photos/di_container.dart';
-import 'package:nc_photos/entity/pref.dart';
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/widget/trusted_cert_manager.dart';
 import 'package:np_codegen/np_codegen.dart';
@@ -28,7 +25,6 @@ class ExpertSettings extends StatelessWidget {
   Widget build(BuildContext context) {
     return BlocProvider(
       create: (_) => _Bloc(
-        KiwiContainer().resolve<DiContainer>(),
         db: context.read(),
         prefController: context.read(),
       )..add(const _Init()),
diff --git a/app/lib/widget/splash.dart b/app/lib/widget/splash.dart
index 6f6dd25f..0a698219 100644
--- a/app/lib/widget/splash.dart
+++ b/app/lib/widget/splash.dart
@@ -9,7 +9,6 @@ import 'package:nc_photos/app_localizations.dart';
 import 'package:nc_photos/bloc_util.dart';
 import 'package:nc_photos/controller/pref_controller.dart';
 import 'package:nc_photos/db/entity_converter.dart';
-import 'package:nc_photos/entity/pref.dart';
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/android/activity.dart';
 import 'package:nc_photos/mobile/android/permission_util.dart';
diff --git a/app/lib/widget/splash/bloc.dart b/app/lib/widget/splash/bloc.dart
index d72fa1e8..071f69e9 100644
--- a/app/lib/widget/splash/bloc.dart
+++ b/app/lib/widget/splash/bloc.dart
@@ -116,7 +116,7 @@ class _Bloc extends Bloc<_Event, _State> with BlocLogger {
       await CompatV46.insertDbAccounts(prefController, npDb);
     } catch (e, stackTrace) {
       _log.shout("[_upgrade46] Failed while clearDefaultCache", e, stackTrace);
-      unawaited(Pref().setAccounts3(null));
+      unawaited(prefController.setAccounts(null));
       unawaited(prefController.setCurrentAccountIndex(null));
     }
   }