diff --git a/app/lib/app_init.dart b/app/lib/app_init.dart
index 62969d18..c2b1b4c9 100644
--- a/app/lib/app_init.dart
+++ b/app/lib/app_init.dart
@@ -43,9 +43,9 @@ import 'package:nc_photos/mobile/platform.dart'
     if (dart.library.html) 'package:nc_photos/web/platform.dart' as platform;
 import 'package:nc_photos/mobile/self_signed_cert_manager.dart';
 import 'package:nc_photos/platform/features.dart' as features;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/touch_manager.dart';
 import 'package:np_log/np_log.dart' as np_log;
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:visibility_detector/visibility_detector.dart';
 
 enum InitIsolateType {
@@ -80,7 +80,7 @@ Future<void> init(InitIsolateType isolateType) async {
   await _initDiContainer(isolateType);
   _initVisibilityDetector();
 
-  if (platform_k.isAndroid) {
+  if (getRawPlatform() == NpPlatform.android) {
     if (isolateType == InitIsolateType.main) {
       try {
         _isNewGMapsRenderer = await Activity.isNewGMapsRenderer();
@@ -109,7 +109,7 @@ void initDrift() {
 }
 
 Future<void> _initDriftWorkaround() async {
-  if (platform_k.isAndroid && AndroidInfo().sdkInt < 24) {
+  if (getRawPlatform() == NpPlatform.android && AndroidInfo().sdkInt < 24) {
     _log.info("[_initDriftWorkaround] Workaround Android 6- bug");
     // see: https://github.com/flutter/flutter/issues/73318 and
     // https://github.com/simolus3/drift/issues/895
@@ -146,7 +146,7 @@ Future<void> _initAccountPrefs() async {
 }
 
 Future<void> _initDeviceInfo() async {
-  if (platform_k.isAndroid) {
+  if (getRawPlatform() == NpPlatform.android) {
     await AndroidInfo.init();
   }
 }
@@ -206,7 +206,7 @@ Future<void> _initDiContainer(InitIsolateType isolateType) async {
 
   c.touchManager = TouchManager(c);
 
-  if (platform_k.isAndroid) {
+  if (getRawPlatform() == NpPlatform.android) {
     // local file currently only supported on Android
     c.localFileRepo = const LocalFileRepo(LocalFileMediaStoreDataSource());
   }
@@ -222,7 +222,7 @@ Future<sql.SqliteDb> _createDb(InitIsolateType isolateType) async {
   switch (isolateType) {
     case InitIsolateType.main:
       // use driftIsolate to prevent DB blocking the UI thread
-      if (platform_k.isWeb) {
+      if (getRawPlatform() == NpPlatform.web) {
         // no isolate support on web
         return sql.SqliteDb();
       } else {
diff --git a/app/lib/bloc/scan_account_dir.dart b/app/lib/bloc/scan_account_dir.dart
index 7e2c1edd..36fe3104 100644
--- a/app/lib/bloc/scan_account_dir.dart
+++ b/app/lib/bloc/scan_account_dir.dart
@@ -16,7 +16,6 @@ import 'package:nc_photos/entity/pref.dart';
 import 'package:nc_photos/event/event.dart';
 import 'package:nc_photos/event/native_event.dart';
 import 'package:nc_photos/exception.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/progress_util.dart';
 import 'package:nc_photos/throttler.dart';
 import 'package:nc_photos/use_case/ls.dart';
@@ -24,6 +23,7 @@ import 'package:nc_photos/use_case/scan_dir.dart';
 import 'package:nc_photos/use_case/scan_dir_offline.dart';
 import 'package:nc_photos/use_case/sync_dir.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:to_string/to_string.dart';
 
 part 'scan_account_dir.g.dart';
@@ -523,13 +523,14 @@ class ScanAccountDirBloc
   late final _accountPrefUpdatedEventListener =
       AppEventListener<AccountPrefUpdatedEvent>(_onAccountPrefUpdatedEvent);
 
-  late final _nativeFileExifUpdatedListener = platform_k.isWeb
+  late final _nativeFileExifUpdatedListener = getRawPlatform() == NpPlatform.web
       ? null
       : NativeEventListener<FileExifUpdatedEvent>(_onNativeFileExifUpdated);
-  late final _imageProcessorUploadSuccessListener = platform_k.isWeb
-      ? null
-      : NativeEventListener<ImageProcessorUploadSuccessEvent>(
-          _onImageProcessorUploadSuccessEvent);
+  late final _imageProcessorUploadSuccessListener =
+      getRawPlatform() == NpPlatform.web
+          ? null
+          : NativeEventListener<ImageProcessorUploadSuccessEvent>(
+              _onImageProcessorUploadSuccessEvent);
 
   late final _refreshThrottler = Throttler(
     onTriggered: (_) {
diff --git a/app/lib/connectivity_util.dart b/app/lib/connectivity_util.dart
index f7d7a7c5..ed35e342 100644
--- a/app/lib/connectivity_util.dart
+++ b/app/lib/connectivity_util.dart
@@ -1,8 +1,8 @@
 import 'package:connectivity_plus/connectivity_plus.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
+import 'package:np_platform_util/np_platform_util.dart';
 
 Future<bool> isWifi() async {
-  if (platform_k.isWeb) {
+  if (getRawPlatform() == NpPlatform.web) {
     // connectivity does NOT work on web, currently it will always return mobile
     // on Blink, and none on Gecko
     return true;
diff --git a/app/lib/download_handler.dart b/app/lib/download_handler.dart
index abd7b63a..084737ba 100644
--- a/app/lib/download_handler.dart
+++ b/app/lib/download_handler.dart
@@ -15,12 +15,12 @@ import 'package:nc_photos/mobile/android/download.dart';
 import 'package:nc_photos/mobile/notification.dart';
 import 'package:nc_photos/mobile/platform.dart'
     if (dart.library.html) 'package:nc_photos/web/platform.dart' as platform;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/use_case/download_file.dart';
 import 'package:nc_photos/use_case/inflate_file_descriptor.dart';
 import 'package:nc_photos_plugin/nc_photos_plugin.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:tuple/tuple.dart';
 
 part 'download_handler.g.dart';
@@ -39,7 +39,7 @@ class DownloadHandler {
   }) async {
     final files = await InflateFileDescriptor(_c)(account, fds);
     final _DownloadHandlerBase handler;
-    if (platform_k.isAndroid) {
+    if (getRawPlatform() == NpPlatform.android) {
       handler = _DownlaodHandlerAndroid();
     } else {
       handler = _DownloadHandlerWeb();
diff --git a/app/lib/entity/file_util.dart b/app/lib/entity/file_util.dart
index 50b83271..04f088b8 100644
--- a/app/lib/entity/file_util.dart
+++ b/app/lib/entity/file_util.dart
@@ -3,9 +3,9 @@ import 'package:nc_photos/account.dart';
 import 'package:nc_photos/api/api_util.dart' as api_util;
 import 'package:nc_photos/entity/file.dart';
 import 'package:nc_photos/entity/file_descriptor.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/remote_storage_util.dart' as remote_storage_util;
 import 'package:np_api/np_api.dart' as api;
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:np_string/np_string.dart';
 import 'package:path/path.dart' as path_lib;
 
@@ -119,7 +119,8 @@ final supportedFormatMimes = [
   "image/gif",
   "video/mp4",
   "video/quicktime",
-  if (platform_k.isAndroid || platform_k.isWeb) "video/webm",
+  if ([NpPlatform.android, NpPlatform.web].contains(getRawPlatform()))
+    "video/webm",
 ];
 
 final supportedImageFormatMimes =
diff --git a/app/lib/entity/sqlite/database.dart b/app/lib/entity/sqlite/database.dart
index bb66fb03..78a1ec22 100644
--- a/app/lib/entity/sqlite/database.dart
+++ b/app/lib/entity/sqlite/database.dart
@@ -14,10 +14,10 @@ import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/platform.dart'
     if (dart.library.html) 'package:nc_photos/web/platform.dart' as platform;
 import 'package:nc_photos/object_extension.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:np_codegen/np_codegen.dart';
 import 'package:np_collection/np_collection.dart';
 import 'package:np_platform_lock/np_platform_lock.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 part 'database.g.dart';
 part 'database/nc_album_extension.dart';
diff --git a/app/lib/entity/sqlite/database_extension.dart b/app/lib/entity/sqlite/database_extension.dart
index c8491963..bc163e95 100644
--- a/app/lib/entity/sqlite/database_extension.dart
+++ b/app/lib/entity/sqlite/database_extension.dart
@@ -148,7 +148,7 @@ extension SqliteDbExtension on SqliteDb {
     return await PlatformLock.synchronized(k.appDbLockId, () async {
       // in unit tests we use an in-memory db, which mean there's no way to
       // access it in other isolates
-      if (platform_k.isUnitTest) {
+      if (isUnitTest) {
         return await callback(this, args);
       } else {
         return await computeWithDb(callback, args);
diff --git a/app/lib/entity/sqlite/isolate_util.dart b/app/lib/entity/sqlite/isolate_util.dart
index 04c9463c..a2adc0c5 100644
--- a/app/lib/entity/sqlite/isolate_util.dart
+++ b/app/lib/entity/sqlite/isolate_util.dart
@@ -9,7 +9,7 @@ import 'package:nc_photos/di_container.dart';
 import 'package:nc_photos/entity/sqlite/database.dart';
 import 'package:nc_photos/mobile/platform.dart'
     if (dart.library.html) 'package:nc_photos/web/platform.dart' as platform;
-import 'package:nc_photos/platform/k.dart' as platform_k;
+import 'package:np_platform_util/np_platform_util.dart';
 
 typedef ComputeWithDbCallback<T, U> = Future<U> Function(
     SqliteDb db, T message);
@@ -26,7 +26,7 @@ Future<SqliteDb> createDb() async {
 
 Future<U> computeWithDb<T, U>(
     ComputeWithDbCallback<T, U> callback, T args) async {
-  if (platform_k.isWeb) {
+  if (getRawPlatform() == NpPlatform.web) {
     final c = KiwiContainer().resolve<DiContainer>();
     return await callback(c.sqliteDb, args);
   } else {
diff --git a/app/lib/legacy/sign_in.dart b/app/lib/legacy/sign_in.dart
index dadc6954..2d394d2b 100644
--- a/app/lib/legacy/sign_in.dart
+++ b/app/lib/legacy/sign_in.dart
@@ -11,13 +11,13 @@ import 'package:nc_photos/entity/pref_util.dart' as pref_util;
 import 'package:nc_photos/entity/sqlite/database.dart' as sql;
 import 'package:nc_photos/help_utils.dart' as help_utils;
 import 'package:nc_photos/legacy/connect.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/theme.dart';
 import 'package:nc_photos/url_launcher_util.dart';
 import 'package:nc_photos/widget/home.dart';
 import 'package:nc_photos/widget/root_picker.dart';
 import 'package:np_codegen/np_codegen.dart';
 import 'package:np_collection/np_collection.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:np_string/np_string.dart';
 
 part 'sign_in.g.dart';
@@ -122,7 +122,8 @@ class _SignInState extends State<SignIn> {
                             ),
                           ),
                         ),
-                        if (!platform_k.isWeb) Expanded(child: Container()),
+                        if (getRawPlatform() != NpPlatform.web)
+                          Expanded(child: Container()),
                         Container(
                           constraints: BoxConstraints(
                             maxWidth:
diff --git a/app/lib/main.dart b/app/lib/main.dart
index 3fa7c177..9a7d23f5 100644
--- a/app/lib/main.dart
+++ b/app/lib/main.dart
@@ -7,9 +7,9 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:logging/logging.dart';
 import 'package:nc_photos/app_init.dart' as app_init;
 import 'package:nc_photos/bloc_util.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/widget/my_app.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 part 'main.g.dart';
 
@@ -17,7 +17,7 @@ void main() async {
   WidgetsFlutterBinding.ensureInitialized();
   await app_init.init(app_init.InitIsolateType.main);
 
-  if (platform_k.isMobile) {
+  if (getRawPlatform().isMobile) {
     // reset orientation override just in case, see #59
     unawaited(SystemChrome.setPreferredOrientations([]));
   }
diff --git a/app/lib/mobile/download.dart b/app/lib/mobile/download.dart
index 2621b6e3..f3b6d8bc 100644
--- a/app/lib/mobile/download.dart
+++ b/app/lib/mobile/download.dart
@@ -5,9 +5,9 @@ import 'package:http/http.dart' as http;
 import 'package:logging/logging.dart';
 import 'package:nc_photos/exception.dart';
 import 'package:nc_photos/platform/download.dart' as itf;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos_plugin/nc_photos_plugin.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:uuid/uuid.dart';
 
@@ -23,7 +23,7 @@ class DownloadBuilder extends itf.DownloadBuilder {
     String? parentDir,
     bool? shouldNotify,
   }) {
-    if (platform_k.isAndroid) {
+    if (getRawPlatform() == NpPlatform.android) {
       return _AndroidDownload(
         url: url,
         headers: headers,
diff --git a/app/lib/mobile/file_saver.dart b/app/lib/mobile/file_saver.dart
index b3ea409e..ff75f38a 100644
--- a/app/lib/mobile/file_saver.dart
+++ b/app/lib/mobile/file_saver.dart
@@ -1,13 +1,13 @@
 import 'dart:typed_data';
 
 import 'package:nc_photos/platform/file_saver.dart' as itf;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos_plugin/nc_photos_plugin.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 class FileSaver extends itf.FileSaver {
   @override
   saveFile(String filename, Uint8List content) {
-    if (platform_k.isAndroid) {
+    if (getRawPlatform() == NpPlatform.android) {
       return _saveFileAndroid(filename, content);
     } else {
       throw UnimplementedError();
diff --git a/app/lib/platform/features.dart b/app/lib/platform/features.dart
index 598c7c78..bad7fd21 100644
--- a/app/lib/platform/features.dart
+++ b/app/lib/platform/features.dart
@@ -1,5 +1,6 @@
-import 'package:nc_photos/platform/k.dart' as platform_k;
+import 'package:np_platform_util/np_platform_util.dart';
 
-final isSupportMapView = platform_k.isWeb || platform_k.isAndroid;
-final isSupportSelfSignedCert = platform_k.isAndroid;
-final isSupportEnhancement = platform_k.isAndroid;
+final isSupportMapView =
+    [NpPlatform.android, NpPlatform.web].contains(getRawPlatform());
+final isSupportSelfSignedCert = getRawPlatform() == NpPlatform.android;
+final isSupportEnhancement = getRawPlatform() == NpPlatform.android;
diff --git a/app/lib/platform/k.dart b/app/lib/platform/k.dart
deleted file mode 100644
index 9853cdb6..00000000
--- a/app/lib/platform/k.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-import 'dart:io';
-
-import 'package:flutter/foundation.dart';
-
-const isWeb = kIsWeb;
-// Platform n/a on web, need checking kIsWeb first
-final isMobile = !kIsWeb && (Platform.isAndroid || Platform.isIOS);
-final isAndroid = !kIsWeb && Platform.isAndroid;
-final isDesktop =
-    !kIsWeb && (Platform.isLinux || Platform.isMacOS || Platform.isWindows);
-final isUnitTest = !kIsWeb && Platform.environment.containsKey("FLUTTER_TEST");
diff --git a/app/lib/set_as_handler.dart b/app/lib/set_as_handler.dart
index 25656ddf..d2735940 100644
--- a/app/lib/set_as_handler.dart
+++ b/app/lib/set_as_handler.dart
@@ -10,11 +10,11 @@ import 'package:nc_photos/exception_util.dart' as exception_util;
 import 'package:nc_photos/internal_download_handler.dart';
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/share.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/use_case/inflate_file_descriptor.dart';
 import 'package:nc_photos/widget/set_as_method_dialog.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 part 'set_as_handler.g.dart';
 
@@ -60,7 +60,7 @@ class SetAsHandler {
   }
 
   Future<void> _setAsAsPreview(Account account, File file) async {
-    assert(platform_k.isAndroid);
+    assert(getRawPlatform() == NpPlatform.android);
     final results = await InternalDownloadHandler(account)
         .downloadPreviews(context, [file]);
     final share = AndroidFileShare(results.entries
@@ -70,7 +70,7 @@ class SetAsHandler {
   }
 
   Future<void> _setAsAsFile(Account account, File file) async {
-    assert(platform_k.isAndroid);
+    assert(getRawPlatform() == NpPlatform.android);
     final results =
         await InternalDownloadHandler(account).downloadFiles(context, [file]);
     final share = AndroidFileShare(results.entries
diff --git a/app/lib/share_handler.dart b/app/lib/share_handler.dart
index fe736cf0..50d7df1d 100644
--- a/app/lib/share_handler.dart
+++ b/app/lib/share_handler.dart
@@ -20,7 +20,6 @@ import 'package:nc_photos/exception_util.dart' as exception_util;
 import 'package:nc_photos/internal_download_handler.dart';
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/share.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/remote_storage_util.dart' as remote_storage_util;
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/use_case/copy.dart';
@@ -32,6 +31,7 @@ import 'package:nc_photos/widget/share_link_multiple_files_dialog.dart';
 import 'package:nc_photos/widget/share_method_dialog.dart';
 import 'package:nc_photos/widget/simple_input_dialog.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 part 'share_handler.g.dart';
 
@@ -112,7 +112,7 @@ class ShareHandler {
   }
 
   Future<void> _shareAsPreview(Account account, List<File> files) async {
-    assert(platform_k.isAndroid);
+    assert(getRawPlatform() == NpPlatform.android);
     final results =
         await InternalDownloadHandler(account).downloadPreviews(context, files);
     final share = AndroidFileShare(results.entries
@@ -122,7 +122,7 @@ class ShareHandler {
   }
 
   Future<void> _shareAsFile(Account account, List<File> files) async {
-    assert(platform_k.isAndroid);
+    assert(getRawPlatform() == NpPlatform.android);
     final results =
         await InternalDownloadHandler(account).downloadFiles(context, files);
     final share = AndroidFileShare(results.entries
@@ -189,7 +189,7 @@ class ShareHandler {
         duration: k.snackBarDurationNormal,
       ));
 
-      if (platform_k.isAndroid) {
+      if (getRawPlatform() == NpPlatform.android) {
         final textShare = AndroidTextShare(share.url!);
         await textShare.share();
       }
diff --git a/app/lib/use_case/download_preview.dart b/app/lib/use_case/download_preview.dart
index 9b55864f..e79aeb2f 100644
--- a/app/lib/use_case/download_preview.dart
+++ b/app/lib/use_case/download_preview.dart
@@ -4,12 +4,12 @@ import 'package:nc_photos/cache_manager_util.dart';
 import 'package:nc_photos/entity/file_descriptor.dart';
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/np_api_util.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos_plugin/nc_photos_plugin.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 class DownloadPreview {
   Future<dynamic> call(Account account, FileDescriptor file) async {
-    assert(platform_k.isAndroid);
+    assert(getRawPlatform() == NpPlatform.android);
     final previewUrl = api_util.getFilePreviewUrl(
       account,
       file,
diff --git a/app/lib/use_case/startup_sync.dart b/app/lib/use_case/startup_sync.dart
index 034f05be..0e8e032b 100644
--- a/app/lib/use_case/startup_sync.dart
+++ b/app/lib/use_case/startup_sync.dart
@@ -10,12 +10,12 @@ import 'package:nc_photos/app_init.dart' as app_init;
 import 'package:nc_photos/di_container.dart';
 import 'package:nc_photos/entity/person.dart';
 import 'package:nc_photos/event/event.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/use_case/person/sync_person.dart';
 import 'package:nc_photos/use_case/sync_favorite.dart';
 import 'package:nc_photos/use_case/sync_tag.dart';
 import 'package:np_codegen/np_codegen.dart';
 import 'package:np_common/type.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 part 'startup_sync.g.dart';
 
@@ -31,7 +31,7 @@ class StartupSync {
   static Future<SyncResult> runInIsolate(
       Account account, PersonProvider personProvider) async {
     return _mutex.protect(() async {
-      if (platform_k.isWeb) {
+      if (getRawPlatform() == NpPlatform.web) {
         // not supported on web
         final c = KiwiContainer().resolve<DiContainer>();
         return await StartupSync(c)(account, personProvider);
diff --git a/app/lib/widget/enhanced_photo_browser.dart b/app/lib/widget/enhanced_photo_browser.dart
index 81d63597..c890e45c 100644
--- a/app/lib/widget/enhanced_photo_browser.dart
+++ b/app/lib/widget/enhanced_photo_browser.dart
@@ -15,7 +15,6 @@ import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/android/android_info.dart';
 import 'package:nc_photos/mobile/android/permission_util.dart';
 import 'package:nc_photos/object_extension.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/share_handler.dart';
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/widget/empty_list_indicator.dart';
@@ -28,6 +27,7 @@ import 'package:nc_photos/widget/selection_app_bar.dart';
 import 'package:nc_photos_plugin/nc_photos_plugin.dart';
 import 'package:np_codegen/np_codegen.dart';
 import 'package:np_collection/np_collection.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 part 'enhanced_photo_browser.g.dart';
 
@@ -337,7 +337,7 @@ class _EnhancedPhotoBrowserState extends State<EnhancedPhotoBrowser>
   }
 
   Future<bool> _ensurePermission() async {
-    if (platform_k.isAndroid) {
+    if (getRawPlatform() == NpPlatform.android) {
       if (AndroidInfo().sdkInt >= AndroidVersion.R) {
         if (!await Permission.hasReadExternalStorage()) {
           final results = await requestPermissionsForResult([
diff --git a/app/lib/widget/file_sharer_dialog.dart b/app/lib/widget/file_sharer_dialog.dart
index 085cc572..5b635751 100644
--- a/app/lib/widget/file_sharer_dialog.dart
+++ b/app/lib/widget/file_sharer_dialog.dart
@@ -19,7 +19,6 @@ import 'package:nc_photos/exception_event.dart';
 import 'package:nc_photos/exception_util.dart' as exception_util;
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/share.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/remote_storage_util.dart' as remote_storage_util;
 import 'package:nc_photos/toast.dart';
 import 'package:nc_photos/use_case/copy.dart';
@@ -34,6 +33,7 @@ import 'package:nc_photos/widget/simple_input_dialog.dart';
 import 'package:nc_photos_plugin/nc_photos_plugin.dart';
 import 'package:np_codegen/np_codegen.dart';
 import 'package:np_collection/np_collection.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:to_string/to_string.dart';
 import 'package:tuple/tuple.dart';
 
@@ -153,7 +153,7 @@ class _ShareMethodDialog extends StatelessWidget {
     return SimpleDialog(
       title: Text(L10n.global().shareMethodDialogTitle),
       children: [
-        if (platform_k.isAndroid) ...[
+        if (getRawPlatform() == NpPlatform.android) ...[
           if (isSupportPerview)
             SimpleDialogOption(
               child: ListTile(
diff --git a/app/lib/widget/file_sharer_dialog/bloc.dart b/app/lib/widget/file_sharer_dialog/bloc.dart
index dae02e2b..93593267 100644
--- a/app/lib/widget/file_sharer_dialog/bloc.dart
+++ b/app/lib/widget/file_sharer_dialog/bloc.dart
@@ -70,7 +70,7 @@ class _Bloc extends Bloc<_Event, _State> with BlocLogger {
   }
 
   Future<void> _doShareFile(Emitter<_State> emit) async {
-    assert(platform_k.isAndroid);
+    assert(getRawPlatform() == NpPlatform.android);
     emit(state.copyWith(
       previewState: _PreviewState(index: 0, count: files.length),
     ));
@@ -103,7 +103,7 @@ class _Bloc extends Bloc<_Event, _State> with BlocLogger {
   }
 
   Future<void> _doSharePreview(Emitter<_State> emit) async {
-    assert(platform_k.isAndroid);
+    assert(getRawPlatform() == NpPlatform.android);
     emit(state.copyWith(
       previewState: _PreviewState(index: 0, count: files.length),
     ));
@@ -186,7 +186,7 @@ class _Bloc extends Bloc<_Event, _State> with BlocLogger {
     );
     await Clipboard.setData(ClipboardData(text: share.url));
 
-    if (platform_k.isAndroid) {
+    if (getRawPlatform() == NpPlatform.android) {
       final textShare = AndroidTextShare(share.url!);
       unawaited(textShare.share());
     }
diff --git a/app/lib/widget/gps_map.dart b/app/lib/widget/gps_map.dart
index 5eb088d8..74704b75 100644
--- a/app/lib/widget/gps_map.dart
+++ b/app/lib/widget/gps_map.dart
@@ -5,8 +5,8 @@ import 'package:nc_photos/app_init.dart' as app_init;
 import 'package:nc_photos/entity/pref.dart';
 import 'package:nc_photos/mobile/platform.dart'
     if (dart.library.html) 'package:nc_photos/web/platform.dart' as platform;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/url_launcher_util.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:tuple/tuple.dart';
 
 enum GpsMapProvider {
@@ -39,7 +39,8 @@ class GpsMap extends StatelessWidget {
   build(BuildContext context) {
     if (GpsMapProvider.values[Pref().getGpsMapProviderOr(0)] ==
             GpsMapProvider.osm ||
-        (platform_k.isAndroid && !app_init.isNewGMapsRenderer())) {
+        (getRawPlatform() == NpPlatform.android &&
+            !app_init.isNewGMapsRenderer())) {
       return _OsmGpsMap(
         center: center,
         zoom: zoom,
diff --git a/app/lib/widget/handler/permission_handler.dart b/app/lib/widget/handler/permission_handler.dart
index c5a201fc..552d8e55 100644
--- a/app/lib/widget/handler/permission_handler.dart
+++ b/app/lib/widget/handler/permission_handler.dart
@@ -3,16 +3,16 @@ import 'package:nc_photos/app_localizations.dart';
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/android/android_info.dart';
 import 'package:nc_photos/mobile/android/permission_util.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos_plugin/nc_photos_plugin.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 /// Handle platform permissions
 class PermissionHandler {
   const PermissionHandler();
 
   Future<bool> ensureStorageWritePermission() async {
-    if (platform_k.isAndroid) {
+    if (getRawPlatform() == NpPlatform.android) {
       if (AndroidInfo().sdkInt < AndroidVersion.R &&
           !await Permission.hasWriteExternalStorage()) {
         final results = await requestPermissionsForResult([
diff --git a/app/lib/widget/home_photos.dart b/app/lib/widget/home_photos.dart
index 93d8d494..72015c88 100644
--- a/app/lib/widget/home_photos.dart
+++ b/app/lib/widget/home_photos.dart
@@ -29,7 +29,6 @@ import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/language_util.dart' as language_util;
 import 'package:nc_photos/metadata_task_manager.dart';
 import 'package:nc_photos/object_extension.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/service.dart' as service;
 import 'package:nc_photos/share_handler.dart';
 import 'package:nc_photos/snack_bar_manager.dart';
@@ -53,6 +52,7 @@ import 'package:nc_photos/widget/settings.dart';
 import 'package:nc_photos/widget/viewer.dart';
 import 'package:nc_photos/widget/zoom_menu_button.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:visibility_detector/visibility_detector.dart';
 
 part 'home_photos.g.dart';
@@ -726,14 +726,16 @@ class _HomePhotosState extends State<HomePhotos>
 
   late final _prefUpdatedListener =
       AppEventListener<PrefUpdatedEvent>(_onPrefUpdated);
-  late final _imageProcessorUploadSuccessListener = platform_k.isWeb
-      ? null
-      : NativeEventListener<ImageProcessorUploadSuccessEvent>(
-          _onImageProcessorUploadSuccessEvent);
+  late final _imageProcessorUploadSuccessListener =
+      getRawPlatform() == NpPlatform.web
+          ? null
+          : NativeEventListener<ImageProcessorUploadSuccessEvent>(
+              _onImageProcessorUploadSuccessEvent);
   late final _onBackToTopListener =
       AppEventListener<HomePhotosBackToTopEvent>(_onBackToTop);
 
-  late final _Web? _web = platform_k.isWeb ? _Web(this) : null;
+  late final _Web? _web =
+      getRawPlatform() == NpPlatform.web ? _Web(this) : null;
 
   var _isScrollbarVisible = false;
   var _isRefreshIndicatorActive = false;
diff --git a/app/lib/widget/horizontal_page_viewer.dart b/app/lib/widget/horizontal_page_viewer.dart
index b3c717e3..9e51d186 100644
--- a/app/lib/widget/horizontal_page_viewer.dart
+++ b/app/lib/widget/horizontal_page_viewer.dart
@@ -1,8 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:nc_photos/k.dart' as k;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/widget/page_changed_listener.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 class HorizontalPageViewer extends StatefulWidget {
   HorizontalPageViewer({
@@ -54,7 +54,7 @@ class _HorizontalPageViewerState extends State<HorizontalPageViewer> {
       _updateNavigationState(widget.initialPage);
       _hasInit = true;
     }
-    return platform_k.isWeb
+    return getRawPlatform() == NpPlatform.web
         ? _buildWebContent(context)
         : _buildContent(context);
   }
@@ -66,7 +66,7 @@ class _HorizontalPageViewerState extends State<HorizontalPageViewer> {
   }
 
   Widget _buildWebContent(BuildContext context) {
-    assert(platform_k.isWeb);
+    assert(getRawPlatform() == NpPlatform.web);
     // support switching pages with keyboard on web
     return RawKeyboardListener(
       onKey: (ev) {
@@ -91,11 +91,13 @@ class _HorizontalPageViewerState extends State<HorizontalPageViewer> {
           controller: widget.controller._pageController,
           itemCount: widget.pageCount,
           itemBuilder: widget.pageBuilder,
-          physics: !platform_k.isWeb && widget.canSwitchPage
-              ? null
-              : const NeverScrollableScrollPhysics(),
+          physics:
+              getRawPlatform() != NpPlatform.web && widget.canSwitchPage
+                  ? null
+                  : const NeverScrollableScrollPhysics(),
         ),
-        if (platform_k.isWeb) ..._buildNavigationButtons(context),
+        if (getRawPlatform() == NpPlatform.web)
+          ..._buildNavigationButtons(context),
       ],
     );
   }
@@ -221,7 +223,7 @@ class _HorizontalPageViewerState extends State<HorizontalPageViewer> {
   /// Update the navigation state for [page]
   void _updateNavigationState(int page) {
     // currently useless to run on non-web platform
-    if (!platform_k.isWeb) {
+    if (getRawPlatform() != NpPlatform.web) {
       return;
     }
     final hasNext = widget.pageCount == null || page < widget.pageCount! - 1;
diff --git a/app/lib/widget/image_enhancer.dart b/app/lib/widget/image_enhancer.dart
index 698a74ac..905ba8f2 100644
--- a/app/lib/widget/image_enhancer.dart
+++ b/app/lib/widget/image_enhancer.dart
@@ -20,7 +20,6 @@ import 'package:nc_photos/mobile/android/content_uri_image_provider.dart';
 import 'package:nc_photos/mobile/android/k.dart' as android;
 import 'package:nc_photos/np_api_util.dart';
 import 'package:nc_photos/object_extension.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/theme.dart';
 import 'package:nc_photos/url_launcher_util.dart';
@@ -30,6 +29,7 @@ import 'package:nc_photos/widget/selectable.dart';
 import 'package:nc_photos/widget/settings/enhancement_settings.dart';
 import 'package:nc_photos_plugin/nc_photos_plugin.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:np_ui/np_ui.dart';
 
 part 'image_enhancer.g.dart';
@@ -525,7 +525,7 @@ class _ImageEnhancerState extends State<ImageEnhancer> {
   }
 
   late final _options = [
-    if (platform_k.isAndroid) ...[
+    if (getRawPlatform() == NpPlatform.android) ...[
       _Option(
         title: L10n.global().enhanceRetouchTitle,
         description: L10n.global().enhanceRetouchDescription,
diff --git a/app/lib/widget/selectable_item_list.dart b/app/lib/widget/selectable_item_list.dart
index 9967080e..60b25b35 100644
--- a/app/lib/widget/selectable_item_list.dart
+++ b/app/lib/widget/selectable_item_list.dart
@@ -6,12 +6,12 @@ import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
 import 'package:logging/logging.dart';
 import 'package:nc_photos/app_localizations.dart';
 import 'package:nc_photos/k.dart' as k;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/session_storage.dart';
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/widget/selectable.dart';
 import 'package:np_codegen/np_codegen.dart';
 import 'package:np_collection/np_collection.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 
 part 'selectable_item_list.g.dart';
 
@@ -75,7 +75,7 @@ class _SelectableItemListState<T extends SelectableItemMetadata>
 
   @override
   Widget build(BuildContext context) {
-    if (platform_k.isWeb) {
+    if (getRawPlatform() == NpPlatform.web) {
       // support shift+click group selection on web
       return RawKeyboardListener(
         onKey: (ev) {
@@ -178,7 +178,7 @@ class _SelectableItemListState<T extends SelectableItemMetadata>
       if (!SessionStorage().hasShowRangeSelectNotification) {
         SnackBarManager().showSnackBar(
           SnackBar(
-            content: Text(platform_k.isWeb
+            content: Text(getRawPlatform() == NpPlatform.web
                 ? L10n.global().webSelectRangeNotification
                 : L10n.global().mobileSelectRangeNotification),
             duration: k.snackBarDurationNormal,
diff --git a/app/lib/widget/selectable_item_stream_list_mixin.dart b/app/lib/widget/selectable_item_stream_list_mixin.dart
index cf5dbbd7..3c305ca2 100644
--- a/app/lib/widget/selectable_item_stream_list_mixin.dart
+++ b/app/lib/widget/selectable_item_stream_list_mixin.dart
@@ -6,13 +6,13 @@ import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
 import 'package:logging/logging.dart';
 import 'package:nc_photos/app_localizations.dart';
 import 'package:nc_photos/k.dart' as k;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/session_storage.dart';
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/widget/measurable_item_list.dart';
 import 'package:nc_photos/widget/selectable.dart';
 import 'package:np_codegen/np_codegen.dart';
 import 'package:np_collection/np_collection.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:uuid/uuid.dart';
 import 'package:visibility_detector/visibility_detector.dart';
 
@@ -47,7 +47,7 @@ mixin SelectableItemStreamListMixin<T extends StatefulWidget> on State<T> {
     BuildContext context, {
     required Widget child,
   }) {
-    if (platform_k.isWeb) {
+    if (getRawPlatform() == NpPlatform.web) {
       // support shift+click group selection on web
       return RawKeyboardListener(
         onKey: (ev) {
@@ -105,7 +105,7 @@ mixin SelectableItemStreamListMixin<T extends StatefulWidget> on State<T> {
         mainAxisSpacing: mainAxisSpacing,
       );
     }
-    if (platform_k.isAndroid) {
+    if (getRawPlatform() == NpPlatform.android) {
       return WillPopScope(
         onWillPop: onBackButtonPressed,
         child: content,
@@ -182,7 +182,7 @@ mixin SelectableItemStreamListMixin<T extends StatefulWidget> on State<T> {
         childBorderRadius: childBorderRadius,
         indicatorAlignment: indicatorAlignment,
         onTap: () => _onItemTap(item, index),
-        onLongPress: isSelectionMode && platform_k.isWeb
+        onLongPress: isSelectionMode && getRawPlatform() == NpPlatform.web
             ? null
             : () => _onItemLongPress(item, index),
         child: content,
@@ -242,7 +242,9 @@ mixin SelectableItemStreamListMixin<T extends StatefulWidget> on State<T> {
       return;
     }
     final wasSelectionMode = isSelectionMode;
-    if (!platform_k.isWeb && wasSelectionMode && _lastSelectPosition != null) {
+    if (getRawPlatform() != NpPlatform.web &&
+        wasSelectionMode &&
+        _lastSelectPosition != null) {
       setState(() {
         _selectedItems.addAll(_items
             .sublist(math.min(_lastSelectPosition!, index),
@@ -262,7 +264,7 @@ mixin SelectableItemStreamListMixin<T extends StatefulWidget> on State<T> {
       if (!SessionStorage().hasShowRangeSelectNotification) {
         SnackBarManager().showSnackBar(
           SnackBar(
-            content: Text(platform_k.isWeb
+            content: Text(getRawPlatform() == NpPlatform.web
                 ? L10n.global().webSelectRangeNotification
                 : L10n.global().mobileSelectRangeNotification),
             duration: k.snackBarDurationNormal,
diff --git a/app/lib/widget/settings/developer_settings.dart b/app/lib/widget/settings/developer_settings.dart
index d99c9894..600be86f 100644
--- a/app/lib/widget/settings/developer_settings.dart
+++ b/app/lib/widget/settings/developer_settings.dart
@@ -14,11 +14,11 @@ import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/platform.dart'
     if (dart.library.html) 'package:nc_photos/web/platform.dart' as platform;
 import 'package:nc_photos/mobile/self_signed_cert_manager.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/widget/page_visibility_mixin.dart';
 import 'package:np_codegen/np_codegen.dart';
 import 'package:np_platform_lock/np_platform_lock.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:to_string/to_string.dart';
 
 part 'developer/bloc.dart';
@@ -105,7 +105,7 @@ class _WrappedDeveloperSettingsState extends State<_WrappedDeveloperSettings>
                         context.read<_Bloc>().add(const _ExportDb());
                       },
                     ),
-                    if (platform_k.isMobile)
+                    if (getRawPlatform().isMobile)
                       ListTile(
                         title: const Text("Clear whitelisted certs"),
                         onTap: () {
diff --git a/app/lib/widget/settings/metadata_settings.dart b/app/lib/widget/settings/metadata_settings.dart
index bd24d3ed..1fbad49e 100644
--- a/app/lib/widget/settings/metadata_settings.dart
+++ b/app/lib/widget/settings/metadata_settings.dart
@@ -8,11 +8,11 @@ import 'package:nc_photos/controller/pref_controller.dart';
 import 'package:nc_photos/exception_event.dart';
 import 'package:nc_photos/exception_util.dart' as exception_util;
 import 'package:nc_photos/k.dart' as k;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/service.dart';
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/widget/page_visibility_mixin.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:to_string/to_string.dart';
 
 part 'metadata/bloc.dart';
@@ -93,7 +93,7 @@ class _WrappedMetadataSettingsState extends State<_WrappedMetadataSettings>
                       );
                     },
                   ),
-                  if (platform_k.isMobile)
+                  if (getRawPlatform().isMobile)
                     _BlocBuilder(
                       buildWhen: (previous, current) =>
                           previous.isEnable != current.isEnable ||
diff --git a/app/lib/widget/settings/theme_settings.dart b/app/lib/widget/settings/theme_settings.dart
index 60b95d1f..3adb5920 100644
--- a/app/lib/widget/settings/theme_settings.dart
+++ b/app/lib/widget/settings/theme_settings.dart
@@ -13,12 +13,12 @@ import 'package:nc_photos/exception_util.dart' as exception_util;
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/android/android_info.dart';
 import 'package:nc_photos/object_extension.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/session_storage.dart';
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/theme.dart';
 import 'package:nc_photos/widget/page_visibility_mixin.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:to_string/to_string.dart';
 
 part 'theme/bloc.dart';
@@ -87,7 +87,7 @@ class _WrappedThemeSettingsState extends State<_WrappedThemeSettings>
               delegate: SliverChildListDelegate(
                 [
                   const _SeedColorOption(),
-                  if (platform_k.isAndroid &&
+                  if (getRawPlatform() == NpPlatform.android &&
                       AndroidInfo().sdkInt >= AndroidVersion.Q)
                     _BlocSelector<bool>(
                       selector: (state) => state.isFollowSystemTheme,
diff --git a/app/lib/widget/settings/viewer_settings.dart b/app/lib/widget/settings/viewer_settings.dart
index 1f12d6ea..c2c595e8 100644
--- a/app/lib/widget/settings/viewer_settings.dart
+++ b/app/lib/widget/settings/viewer_settings.dart
@@ -8,12 +8,12 @@ import 'package:nc_photos/controller/pref_controller.dart';
 import 'package:nc_photos/exception_event.dart';
 import 'package:nc_photos/exception_util.dart' as exception_util;
 import 'package:nc_photos/k.dart' as k;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/widget/fancy_option_picker.dart';
 import 'package:nc_photos/widget/gps_map.dart';
 import 'package:nc_photos/widget/page_visibility_mixin.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:np_ui/np_ui.dart';
 import 'package:screen_brightness/screen_brightness.dart';
 import 'package:to_string/to_string.dart';
@@ -82,7 +82,7 @@ class _WrappedViewerSettingsState extends State<_WrappedViewerSettings>
             SliverList(
               delegate: SliverChildListDelegate(
                 [
-                  if (platform_k.isMobile)
+                  if (getRawPlatform().isMobile)
                     _BlocSelector<int>(
                       selector: (state) => state.screenBrightness,
                       builder: (context, state) {
@@ -97,7 +97,7 @@ class _WrappedViewerSettingsState extends State<_WrappedViewerSettings>
                         );
                       },
                     ),
-                  if (platform_k.isMobile)
+                  if (getRawPlatform().isMobile)
                     _BlocSelector<bool>(
                       selector: (state) => state.isForceRotation,
                       builder: (context, state) {
diff --git a/app/lib/widget/share_method_dialog.dart b/app/lib/widget/share_method_dialog.dart
index 99f260be..4051149c 100644
--- a/app/lib/widget/share_method_dialog.dart
+++ b/app/lib/widget/share_method_dialog.dart
@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:nc_photos/app_localizations.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
+import 'package:np_platform_util/np_platform_util.dart';
 
 enum ShareMethod {
   file,
@@ -20,7 +20,7 @@ class ShareMethodDialog extends StatelessWidget {
     return SimpleDialog(
       title: Text(L10n.global().shareMethodDialogTitle),
       children: [
-        if (platform_k.isAndroid) ...[
+        if (getRawPlatform() == NpPlatform.android) ...[
           if (isSupportPerview)
             SimpleDialogOption(
               child: ListTile(
diff --git a/app/lib/widget/splash.dart b/app/lib/widget/splash.dart
index 48e20164..a8f14fc2 100644
--- a/app/lib/widget/splash.dart
+++ b/app/lib/widget/splash.dart
@@ -11,7 +11,6 @@ import 'package:nc_photos/entity/pref.dart';
 import 'package:nc_photos/entity/sqlite/database.dart' as sql;
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/mobile/android/activity.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/use_case/compat/v29.dart';
 import 'package:nc_photos/use_case/compat/v46.dart';
 import 'package:nc_photos/use_case/compat/v55.dart';
@@ -20,6 +19,7 @@ import 'package:nc_photos/widget/home.dart';
 import 'package:nc_photos/widget/setup.dart';
 import 'package:nc_photos/widget/sign_in.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:to_string/to_string.dart';
 
 part 'splash.g.dart';
@@ -141,7 +141,7 @@ class _SplashState extends State<Splash> {
         Navigator.pushReplacementNamed(context, Home.routeName,
             arguments: HomeArguments(account)),
       );
-      if (platform_k.isAndroid) {
+      if (getRawPlatform() == NpPlatform.android) {
         final initialRoute = await Activity.consumeInitialRoute();
         if (initialRoute != null) {
           unawaited(Navigator.pushNamed(context, initialRoute));
diff --git a/app/lib/widget/video_viewer.dart b/app/lib/widget/video_viewer.dart
index 5618aa5f..59117d90 100644
--- a/app/lib/widget/video_viewer.dart
+++ b/app/lib/widget/video_viewer.dart
@@ -12,12 +12,12 @@ import 'package:nc_photos/entity/pref.dart';
 import 'package:nc_photos/exception_util.dart' as exception_util;
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/np_api_util.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/use_case/request_public_link.dart';
 import 'package:nc_photos/widget/disposable.dart';
 import 'package:nc_photos/widget/wakelock_util.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:np_ui/np_ui.dart';
 import 'package:video_player/video_player.dart';
 
@@ -286,7 +286,7 @@ class _VideoViewerState extends State<VideoViewer>
   }
 
   Future<String> _getVideoUrl() async {
-    if (platform_k.isWeb) {
+    if (getRawPlatform() == NpPlatform.web) {
       return RequestPublicLink()(widget.account, widget.file);
     } else {
       return api_util.getFileUrl(widget.account, widget.file);
diff --git a/app/lib/widget/viewer_detail_pane.dart b/app/lib/widget/viewer_detail_pane.dart
index 1e141d0f..ffcd9c0c 100644
--- a/app/lib/widget/viewer_detail_pane.dart
+++ b/app/lib/widget/viewer_detail_pane.dart
@@ -22,7 +22,6 @@ import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/location_util.dart' as location_util;
 import 'package:nc_photos/object_extension.dart';
 import 'package:nc_photos/platform/features.dart' as features;
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/set_as_handler.dart';
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/theme.dart';
@@ -36,6 +35,7 @@ import 'package:nc_photos/widget/list_tile_center_leading.dart';
 import 'package:nc_photos/widget/photo_date_time_edit_dialog.dart';
 import 'package:np_codegen/np_codegen.dart';
 import 'package:np_common/or_null.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:np_string/np_string.dart';
 import 'package:np_ui/np_ui.dart';
 import 'package:path/path.dart' as path_lib;
@@ -171,7 +171,7 @@ class _ViewerDetailPaneState extends State<ViewerDetailPane> {
                     label: L10n.global().addItemToCollectionTooltip,
                     onPressed: () => _onAddToAlbumPressed(context),
                   ),
-                  if (platform_k.isAndroid &&
+                  if (getRawPlatform() == NpPlatform.android &&
                       file_util.isSupportedImageFormat(_file!))
                     _DetailPaneButton(
                       icon: Icons.launch,
@@ -433,7 +433,7 @@ class _ViewerDetailPaneState extends State<ViewerDetailPane> {
   }
 
   void _onMapTap() {
-    if (platform_k.isAndroid) {
+    if (getRawPlatform() == NpPlatform.android) {
       final intent = AndroidIntent(
         action: "action_view",
         data: Uri.encodeFull("geo:${_gps!.item1},${_gps!.item2}?z=16"),
diff --git a/app/lib/widget/viewer_mixin.dart b/app/lib/widget/viewer_mixin.dart
index 09ab5431..6173e20e 100644
--- a/app/lib/widget/viewer_mixin.dart
+++ b/app/lib/widget/viewer_mixin.dart
@@ -5,10 +5,10 @@ import 'package:flutter/widgets.dart';
 import 'package:logging/logging.dart';
 import 'package:native_device_orientation/native_device_orientation.dart';
 import 'package:nc_photos/entity/pref.dart';
-import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/throttler.dart';
 import 'package:nc_photos/widget/disposable.dart';
 import 'package:np_codegen/np_codegen.dart';
+import 'package:np_platform_util/np_platform_util.dart';
 import 'package:screen_brightness/screen_brightness.dart';
 
 part 'viewer_mixin.g.dart';
@@ -19,9 +19,9 @@ mixin ViewerControllersMixin<T extends StatefulWidget>
   initDisposables() {
     return [
       ...super.initDisposables(),
-      if (platform_k.isMobile) _ViewerBrightnessController(),
+      if (getRawPlatform().isMobile) _ViewerBrightnessController(),
       _ViewerSystemUiResetter(),
-      if (platform_k.isMobile && Pref().isViewerForceRotationOr(false))
+      if (getRawPlatform().isMobile && Pref().isViewerForceRotationOr(false))
         _ViewerOrientationController(
           onChanged: _onOrientationChanged,
         ),
diff --git a/app/pubspec.lock b/app/pubspec.lock
index 0d0df3f8..94fc97c1 100644
--- a/app/pubspec.lock
+++ b/app/pubspec.lock
@@ -1005,7 +1005,7 @@ packages:
     source: path
     version: "0.0.1"
   np_platform_util:
-    dependency: transitive
+    dependency: "direct main"
     description:
       path: "../np_platform_util"
       relative: true
diff --git a/app/pubspec.yaml b/app/pubspec.yaml
index cd454c09..cef598b7 100644
--- a/app/pubspec.yaml
+++ b/app/pubspec.yaml
@@ -111,6 +111,8 @@ dependencies:
     path: ../np_math
   np_platform_lock:
     path: ../np_platform_lock
+  np_platform_util:
+    path: ../np_platform_util
   np_string:
     path: ../np_string
   np_ui: