From c00bcbcff70182a6b49f028acc3da6485411d527 Mon Sep 17 00:00:00 2001
From: TaYaKi71751 <shantian.tw@gmail.com>
Date: Sun, 10 Dec 2023 23:27:41 +0900
Subject: [PATCH] Add linux

---
 .github/workflows/build.yml                   |  77 +++++-
 .gitignore                                    |   5 +-
 .metadata                                     |  16 +-
 .vscode/settings.json                         |   3 +-
 AppImageBuilder.yml                           |  76 ++++++
 assets/db/null.db                             | Bin 0 -> 4096 bytes
 lib/checker/checker.dart                      |   9 +
 lib/component/eh/eh_headers.dart              |  13 +-
 lib/component/eh/eh_provider.dart             |   4 +-
 lib/component/hentai.dart                     |   2 +-
 lib/database/database.dart                    |  17 +-
 lib/database/user/settings.dart               | 128 +++++++++
 lib/database/user/user.dart                   |  15 +-
 lib/downloader/isolate_downloader.dart        |   5 +-
 lib/log/log.dart                              |   1 +
 lib/main.dart                                 |  27 +-
 lib/pages/article_info/article_info_page.dart |   8 +-
 .../group/group_article_list_page.dart        |   6 +-
 lib/pages/community/community_page.dart       |  18 +-
 lib/pages/community/user_status_card.dart     |   4 +-
 .../community/user_status_card_dead.dart      |  18 +-
 .../database_download_page.dart               | 142 +++++++++-
 lib/pages/download/download_page.dart         |   4 +-
 lib/pages/lock/lock_screen.dart               |   6 +-
 lib/pages/main/info/lab_page.dart             |   6 +-
 lib/pages/main/main_page.dart                 |   8 +-
 lib/pages/search/search_page.dart             |   6 +-
 lib/pages/settings/lock_setting_page.dart     |   4 +-
 lib/pages/settings/route.dart                 |   4 +-
 lib/pages/settings/settings_page.dart         |  18 +-
 lib/pages/splash/splash_page.dart             |  13 +-
 lib/server/community/anon.dart                |   5 +-
 lib/server/violet.dart                        |   4 +-
 lib/settings/settings.dart                    | 249 ++++++++++++++++--
 lib/update/update_manager.dart                |   4 +-
 lib/version/sync.dart                         |   8 +-
 linux/.gitignore                              |   1 +
 linux/CMakeLists.txt                          | 145 ++++++++++
 linux/flutter/CMakeLists.txt                  |  88 +++++++
 linux/flutter/generated_plugin_registrant.cc  |  19 ++
 linux/flutter/generated_plugin_registrant.h   |  15 ++
 linux/flutter/generated_plugins.cmake         |  25 ++
 linux/main.cc                                 |   6 +
 linux/my_application.cc                       | 104 ++++++++
 linux/my_application.h                        |  18 ++
 preprocess-ios.py                             |   2 +-
 preprocess-linux.py                           | 112 ++++++++
 pubspec.lock                                  |  40 +--
 pubspec.yaml                                  |   3 +-
 49 files changed, 1353 insertions(+), 158 deletions(-)
 create mode 100644 AppImageBuilder.yml
 create mode 100644 assets/db/null.db
 create mode 100644 lib/database/user/settings.dart
 create mode 100644 linux/.gitignore
 create mode 100644 linux/CMakeLists.txt
 create mode 100644 linux/flutter/CMakeLists.txt
 create mode 100644 linux/flutter/generated_plugin_registrant.cc
 create mode 100644 linux/flutter/generated_plugin_registrant.h
 create mode 100644 linux/flutter/generated_plugins.cmake
 create mode 100644 linux/main.cc
 create mode 100644 linux/my_application.cc
 create mode 100644 linux/my_application.h
 create mode 100644 preprocess-linux.py

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cfa87166a..6c50c1569 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,10 +21,16 @@ jobs:
           python-version: '3.8'
       - name: Preprocess
         run: | 
-          cd lib/server
-          wget -q ${{ secrets.SECRET_SALT }}
-          wget -q ${{ secrets.SECRET_WSALT }}
-          cd ../..
+          # cd lib/server
+          # wget -q ${{ secrets.SECRET_SALT }}
+          # wget -q ${{ secrets.SECRET_WSALT }}
+          # cd ../..
+          cat >> lib/server/salt.dart << EOF
+            String getValid(foo) {return foo;}
+          EOF
+          cat >> lib/server/wsalt.dart << EOF
+            String getValid(foo) {return foo;}
+          EOF
           python3 preprocess-ios.py
       - name: Podfile
         run: |
@@ -48,6 +54,55 @@ jobs:
           name: ipa-build
           path: Payload.ipa
 
+  # https://github.com/AppImageCrafters/appimage-builder-flutter-example/blob/main/.github/workflows/appimage.yml
+  linux-build:
+    runs-on: Ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v2
+    - uses: subosito/flutter-action@v1
+      # with:
+        # flutter-version: '1.22.4'
+    - run: flutter channel beta
+    - run: flutter upgrade
+    - run: flutter config --enable-linux-desktop
+    - name: "Install dependencies"
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y cmake ninja-build build-essential pkg-config curl file git unzip xz-utils zip libgtk-3-dev
+    - name: Build flutter app
+      run: |
+        # cd lib/server
+        # wget -q ${{ secrets.SECRET_SALT }}
+        # wget -q ${{ secrets.SECRET_WSALT }}
+        # cd ../..
+        python3 preprocess-linux.py
+        cat << EOF > lib/server/salt.dart
+          String getValid(foo) {return foo;}
+        EOF
+        cat << EOF > lib/server/wsalt.dart
+          String getValid(foo) {return foo;}
+        EOF
+        flutter build linux
+    - name: Build AppImage unsing appimage-builder
+      uses: docker://appimagecrafters/appimage-builder:0.8.5
+      with:
+        entrypoint: appimage-builder
+        args: --recipe ./AppImageBuilder.yml --skip-test
+    - name: Save build Artifact
+      uses: actions/upload-artifact@v2
+      with:
+        name: AppImage
+        path: './*.AppImage*'
+    - name: Release AppImage
+      uses: marvinpinto/action-automatic-releases@latest
+      with:
+        title: Continuous build
+        automatic_release_tag: 'continuous'
+        prerelease: true
+        draft: false
+        files: './*.AppImage*'
+        repo_token: ${{ secrets.GITHUB_TOKEN }}
+
   android-build:
     runs-on: ubuntu-latest
     steps:
@@ -66,10 +121,16 @@ jobs:
           python-version: '3.8'
       - name: Preprocess
         run: | 
-          cd lib/server
-          wget -q ${{ secrets.SECRET_SALT }}
-          wget -q ${{ secrets.SECRET_WSALT }}
-          cd ../..
+          # cd lib/server
+          # wget -q ${{ secrets.SECRET_SALT }}
+          # wget -q ${{ secrets.SECRET_WSALT }}
+          # cd ../..
+          cat << EOF > lib/server/salt.dart
+            String getValid(foo) {return foo;}
+          EOF
+          cat << EOF > lib/server/wsalt.dart
+            String getValid(foo) {return foo;}
+          EOF
           python3 preprocess-android.py
       - name: Build
         run: |
diff --git a/.gitignore b/.gitignore
index 0efcc6c57..a4ae24dcc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,6 +31,9 @@ migrate_working_dir/
 .pub-cache/
 .pub/
 /build/
+/AppDir/
+*.AppImage
+*.appimage
 
 # Web related
 lib/generated_plugin_registrant.dart
@@ -62,4 +65,4 @@ emulator.bat
 img/*
 test/db
 test/*.7z
-test/rawdata-korean
\ No newline at end of file
+test/rawdata-korean
diff --git a/.metadata b/.metadata
index d4114470d..3deb92fa5 100644
--- a/.metadata
+++ b/.metadata
@@ -1,11 +1,11 @@
 # This file tracks properties of this Flutter project.
 # Used by Flutter tool to assess capabilities and perform upgrades etc.
 #
-# This file should be version controlled.
+# This file should be version controlled and should not be manually edited.
 
 version:
-  revision: 18a827f3933c19f51862dde3fa472197683249d6
-  channel: stable
+  revision: "7f20e5d18ce4cb80c621533090a7c5113f5bdc52"
+  channel: "stable"
 
 project_type: app
 
@@ -13,11 +13,11 @@ project_type: app
 migration:
   platforms:
     - platform: root
-      create_revision: 18a827f3933c19f51862dde3fa472197683249d6
-      base_revision: 18a827f3933c19f51862dde3fa472197683249d6
-    - platform: windows
-      create_revision: 18a827f3933c19f51862dde3fa472197683249d6
-      base_revision: 18a827f3933c19f51862dde3fa472197683249d6
+      create_revision: 7f20e5d18ce4cb80c621533090a7c5113f5bdc52
+      base_revision: 7f20e5d18ce4cb80c621533090a7c5113f5bdc52
+    - platform: linux
+      create_revision: 7f20e5d18ce4cb80c621533090a7c5113f5bdc52
+      base_revision: 7f20e5d18ce4cb80c621533090a7c5113f5bdc52
 
   # User provided section
 
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 404da7585..fdcf9ab1f 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,5 +1,6 @@
 {
   "files.associations": {
     "ostream": "cpp"
-  }
+  },
+  "java.compile.nullAnalysis.mode": "disabled"
 }
\ No newline at end of file
diff --git a/AppImageBuilder.yml b/AppImageBuilder.yml
new file mode 100644
index 000000000..eb822fc01
--- /dev/null
+++ b/AppImageBuilder.yml
@@ -0,0 +1,76 @@
+# appimage-builder recipe see https://appimage-builder.readthedocs.io for details
+version: 1
+script:
+ - rm -rf AppDir || true
+ - cp -r build/linux/x64/release/bundle AppDir
+ - mkdir -p AppDir/usr/share/icons/hicolor/64x64/apps/
+ - cp assets/images/logo.png AppDir/usr/share/icons/hicolor/64x64/apps/
+AppDir:
+  path: ./AppDir
+  app_info:
+    id: xyz.project.violet
+    name: Violet
+    icon: logo
+    version: latest
+    exec: violet
+    exec_args: $@
+  apt:
+    arch: amd64
+    allow_unauthenticated: true
+    sources:
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal main restricted
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal-updates main restricted
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal universe
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal-updates universe
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal multiverse
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal-updates multiverse
+    - sourceline: deb http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse
+    - sourceline: deb http://security.ubuntu.com/ubuntu focal-security main restricted
+    - sourceline: deb http://security.ubuntu.com/ubuntu focal-security universe
+    - sourceline: deb http://security.ubuntu.com/ubuntu focal-security multiverse
+    include:
+    - libgtk-3-0
+    exclude:
+    - humanity-icon-theme
+    - hicolor-icon-theme
+    - adwaita-icon-theme
+    - ubuntu-mono
+  files:
+    include:
+    - lib/*.so
+    - data
+    exclude:
+    - usr/share/man
+    - usr/share/doc/*/README.*
+    - usr/share/doc/*/changelog.*
+    - usr/share/doc/*/NEWS.*
+    - usr/share/doc/*/TODO.*
+  runtime:
+    env:
+      GIO_MODULE_DIR: $APPDIR/usr/lib/x86_64-linux-gnu/gio/modules/
+  test:
+    fedora:
+      image: appimagecrafters/tests-env:fedora-30
+      command: ./violet
+      use_host_x: true
+    debian:
+      image: appimagecrafters/tests-env:debian-stable
+      command: ./violet
+      use_host_x: true
+    arch:
+      image: appimagecrafters/tests-env:archlinux-latest
+      command: ./violet
+      use_host_x: true
+    centos:
+      image: appimagecrafters/tests-env:centos-7
+      command: ./violet
+      use_host_x: true
+    ubuntu:
+      image: appimagecrafters/tests-env:ubuntu-xenial
+      command: ./violet
+      use_host_x: true
+AppImage:
+  arch: x86_64
+  update-information: guess
+  sign-key: None
+
diff --git a/assets/db/null.db b/assets/db/null.db
new file mode 100644
index 0000000000000000000000000000000000000000..76b623b198ee85153780294e191b64fc17cedc19
GIT binary patch
literal 4096
zcmWFz^vNtqRY=P(%1ta$FlG>7U}R))P*7lCU|@t|AO!{>KB<6_L9b{LFG!aFsai+X
qkA}c#2#kinXb6mkz-S1JhQMeDjE2By2#kinXb6mkz-S0iD+B<KLI)%O

literal 0
HcmV?d00001

diff --git a/lib/checker/checker.dart b/lib/checker/checker.dart
index 69067fe38..b0b208973 100644
--- a/lib/checker/checker.dart
+++ b/lib/checker/checker.dart
@@ -20,6 +20,15 @@ class VioletChecker {
       var dbPath = Platform.isAndroid
           ? '${(await getApplicationDocumentsDirectory()).path}/data/data.db'
           : '${await getDatabasesPath()}/data.db';
+      if(Platform.isLinux){
+        var home = '';
+        Platform.environment.forEach((key, value) {
+          if(key == 'HOME'){
+            home = value;
+          }
+        });
+        dbPath = '${home}/.violet/data.db';
+      }
 
       //
       // 1. check file exists
diff --git a/lib/component/eh/eh_headers.dart b/lib/component/eh/eh_headers.dart
index 5d520fccf..a1b169f6a 100644
--- a/lib/component/eh/eh_headers.dart
+++ b/lib/component/eh/eh_headers.dart
@@ -4,6 +4,7 @@
 import 'package:http/http.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:violet/network/wrapper.dart' as http;
+import 'package:violet/settings/settings.dart';
 
 class EHSession {
   static EHSession? tryLogin(String id, String pass) {
@@ -11,14 +12,14 @@ class EHSession {
   }
 
   static Future<String> requestString(String url) async {
-    final prefs = await SharedPreferences.getInstance();
-    var cookie = prefs.getString('eh_cookies');
+    final prefs = await MultiPreferences.getInstance();
+    var cookie = await prefs.getString('eh_cookies');
     return (await http.get(url, headers: {'Cookie': cookie ?? ''})).body;
   }
 
   static Future<String?> requestRedirect(String url) async {
-    final prefs = await SharedPreferences.getInstance();
-    var cookie = prefs.getString('eh_cookies');
+    final prefs = await MultiPreferences.getInstance();
+    var cookie = await prefs.getString('eh_cookies');
     Request req = Request('Get', Uri.parse(url))..followRedirects = false;
     req.headers['Cookie'] = cookie ?? '';
     Client baseClient = Client();
@@ -27,8 +28,8 @@ class EHSession {
   }
 
   static Future<String> postComment(String url, String content) async {
-    final prefs = await SharedPreferences.getInstance();
-    var cookie = prefs.getString('eh_cookies');
+    final prefs = await MultiPreferences.getInstance();
+    var cookie = await prefs.getString('eh_cookies');
     return (await http.post(url,
             headers: {'Cookie': cookie ?? ''},
             body: 'commenttext_new=${Uri.encodeFull(content)}'))
diff --git a/lib/component/eh/eh_provider.dart b/lib/component/eh/eh_provider.dart
index 1467c2712..09889e870 100644
--- a/lib/component/eh/eh_provider.dart
+++ b/lib/component/eh/eh_provider.dart
@@ -53,8 +53,8 @@ class EHentaiImageProvider extends VioletImageProvider {
 
   @override
   Future<Map<String, String>> getHeader(int page) async {
-    final prefs = await SharedPreferences.getInstance();
-    var cookie = prefs.getString('eh_cookies');
+    final prefs = await MultiPreferences.getInstance();
+    var cookie = await prefs.getString('eh_cookies');
     return {'Cookie': cookie ?? ''};
   }
 
diff --git a/lib/component/hentai.dart b/lib/component/hentai.dart
index 401d48eab..69a658320 100644
--- a/lib/component/hentai.dart
+++ b/lib/component/hentai.dart
@@ -296,7 +296,7 @@ class HentaiManager {
         'https://e${exh ? 'x' : '-'}hentai.org/?page=$page&f_cats=993&f_search=$search&advsearch=1&f_sname=on&f_stags=on&f_sh=on&f_spf=&f_spt=';
 
     final cookie =
-        (await SharedPreferences.getInstance()).getString('eh_cookies') ?? '';
+        (await (await MultiPreferences.getInstance()).getString('eh_cookies')) ?? '';
     final html =
         (await http.get(url, headers: {'Cookie': '$cookie;sl=dm_2'})).body;
 
diff --git a/lib/database/database.dart b/lib/database/database.dart
index 80a7c6101..5582c1761 100644
--- a/lib/database/database.dart
+++ b/lib/database/database.dart
@@ -33,9 +33,19 @@ class DataBaseManager {
       if (Platform.environment.containsKey('FLUTTER_TEST')) {
         dbPath = join(Directory.current.path, 'test/db/data.db');
       } else {
-        dbPath = Platform.isAndroid
-            ? '${(await getApplicationDocumentsDirectory()).path}/data/data.db'
-            : '${await getDatabasesPath()}/data.db';
+        if(Platform.isAndroid || Platform.isIOS){
+          dbPath = Platform.isAndroid
+              ? '${(await getApplicationDocumentsDirectory()).path}/data/data.db'
+              : '${await getDatabasesPath()}/data.db';
+        } else if(Platform.isLinux){
+          var home = '';
+          Platform.environment.forEach((key, value) {
+            if(key == 'HOME'){
+              home = value;
+            }
+          });
+          dbPath = '${home}/.violet/data.db';
+        }
       }
       _instance = create(dbPath);
       await _instance!.open();
@@ -46,7 +56,6 @@ class DataBaseManager {
   static Future<void> reloadInstance() async {
     final db = _instance?.db;
     _instance?.db = null;
-    await db?.close();
   }
 
   Future<void> open() async {
diff --git a/lib/database/user/settings.dart b/lib/database/user/settings.dart
new file mode 100644
index 000000000..fef0992b3
--- /dev/null
+++ b/lib/database/user/settings.dart
@@ -0,0 +1,128 @@
+// This source code is a part of Project Violet.
+// Copyright (C) 2020-2023. violet-team. Licensed under the Apache-2.0 License.
+
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:sqflite_common_ffi/sqflite_ffi.dart';
+import 'package:sqflite/sqflite.dart';
+import 'package:flutter/services.dart';
+
+class SettingsManager {
+  String? dbPath;
+  Database? db;
+  static SettingsManager? _instance;
+
+  SettingsManager({this.dbPath});
+
+  static SettingsManager create(String dbPath) {
+    return SettingsManager(dbPath: dbPath);
+  }
+
+  @protected
+  @mustCallSuper
+  void dispose() async {
+    print('close: ${dbPath!}');
+    if (db != null) db!.close();
+  }
+
+  static Future<SettingsManager> getInstance() async {
+    if (_instance == null) {
+      var home = '';
+      if(Platform.isLinux){
+        Platform.environment.forEach((key, value) => {
+          if(key == 'HOME'){
+            home = value
+          }
+        });
+      }
+      var dbPath = (Platform.isLinux)
+        ? '${home}/.violet/settings.db'
+        : '';
+      if(!(await File(dbPath).exists())){
+        await File(dbPath).create(recursive: true);
+        final sharedLibraryPath = 'assets/db/null.db';
+        final sharedLibraryContent = await rootBundle.load(sharedLibraryPath);
+
+        final libraryFile = File('${dbPath}');
+        final createdFile = await libraryFile.create();
+        final openFile = await createdFile.open(mode: FileMode.write);
+        final writtenFile =
+            await openFile.writeFrom(Uint8List.view(sharedLibraryContent.buffer));
+        await writtenFile.close();
+
+        
+      }
+      _instance = create(dbPath);
+      await _instance!.open();
+    }
+    return _instance!;
+  }
+
+  static Future<void> reloadInstance() async {
+    var home = '';
+    if(Platform.isLinux){
+      Platform.environment.forEach((key, value) => {
+        if(key == 'HOME'){
+          home = value
+        }
+      });
+    }
+    var dbPath = (Platform.isLinux)
+      ? '${home}/.violet/settings.db'
+      : '';
+    _instance = create(dbPath);
+  }
+
+  Future open() async {
+    db ??= await openDatabase(dbPath!);
+  }
+
+  Future checkOpen() async {
+    if(db != null){
+      if (!db!.isOpen) db = await openDatabase(dbPath!);
+    } else if(db == null){
+      db = await openDatabase(dbPath!);
+    }
+  }
+
+  Future<List<Map<String, dynamic>>> query(String str) async {
+    List<Map<String, dynamic>> result = [];
+    await checkOpen();
+    result = await db!.rawQuery(str);
+    return result;
+  }
+
+  Future<void> execute(String str) async {
+    await checkOpen();
+    await db!.execute(str);
+  }
+
+  Future<int> insert(String name, Map<String, dynamic> wh) async {
+    int result = -1;
+    await checkOpen();
+    result = await db!.insert(name, wh);
+    return result;
+  }
+
+  Future<void> update(String name, Map<String, dynamic> wh, String where,
+      List<dynamic> args) async {
+    await checkOpen();
+    await db!.update(name, wh, where: where, whereArgs: args);
+  }
+
+  Future<void> swap(String name, String key, String what, int key1, int key2,
+      int s1, int s2) async {
+    await checkOpen();
+    await db!.transaction((txn) async {
+      await txn.rawUpdate('UPDATE $name SET $what=? WHERE $key=?', [s2, key1]);
+      await txn.rawUpdate('UPDATE $name SET $what=? WHERE $key=?', [s1, key2]);
+    });
+  }
+
+  Future<void> delete(String name, String where, List<dynamic> args) async {
+    await checkOpen();
+    await db!.delete(name, where: where, whereArgs: args);
+  }
+}
diff --git a/lib/database/user/user.dart b/lib/database/user/user.dart
index 1b4c81acb..2d070b1af 100644
--- a/lib/database/user/user.dart
+++ b/lib/database/user/user.dart
@@ -2,6 +2,7 @@
 // Copyright (C) 2020-2023. violet-team. Licensed under the Apache-2.0 License.
 
 import 'dart:async';
+import 'dart:io';
 
 import 'package:path_provider/path_provider.dart';
 import 'package:violet/database/database.dart';
@@ -11,8 +12,18 @@ class CommonUserDatabase extends DataBaseManager {
 
   static Future<DataBaseManager> getInstance() async {
     if (_instance == null) {
-      var dir = await getApplicationDocumentsDirectory();
-      _instance = DataBaseManager.create('${dir.path}/user.db');
+      var home = '';
+      if(Platform.isAndroid || Platform.isIOS){
+        var dir = await getApplicationDocumentsDirectory();
+        _instance = DataBaseManager.create('${dir.path}/user.db');
+      } else if(Platform.isLinux){
+        Platform.environment.forEach((key, value) => {
+          if(key == 'HOME'){
+            home = value
+          }
+        });
+        _instance = DataBaseManager.create('${home}/.violet/user.db');
+      }
       await _instance!.open();
     }
     return _instance!;
diff --git a/lib/downloader/isolate_downloader.dart b/lib/downloader/isolate_downloader.dart
index 5f2ec29f1..ddc87d484 100644
--- a/lib/downloader/isolate_downloader.dart
+++ b/lib/downloader/isolate_downloader.dart
@@ -10,6 +10,7 @@ import 'package:dio/dio.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:violet/component/downloadable.dart';
 import 'package:violet/log/log.dart';
+import 'package:violet/settings/settings.dart';
 
 part './isolate/core.dart';
 
@@ -84,8 +85,8 @@ class IsolateDownloader {
   }
 
   Future<void> _initThreadCount() async {
-    final prefs = await SharedPreferences.getInstance();
-    var tc = prefs.getInt('thread_count');
+    final prefs = await MultiPreferences.getInstance();
+    var tc = await prefs.getInt('thread_count');
     if (tc == null) {
       tc = 4;
       await prefs.setInt('thread_count', 4);
diff --git a/lib/log/log.dart b/lib/log/log.dart
index d5bb7a2dd..d68fb3ece 100644
--- a/lib/log/log.dart
+++ b/lib/log/log.dart
@@ -62,6 +62,7 @@ class Logger {
 
     if (!Platform.environment.containsKey('FLUTTER_TEST')) {
       await lock.synchronized(() async {
+        await init();
         await logFile.writeAsString('[${DateTime.now().toUtc()}] $msg\n',
             mode: FileMode.append);
       });
diff --git a/lib/main.dart b/lib/main.dart
index e73a69cc5..a82751b31 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -3,6 +3,7 @@
 
 import 'dart:async';
 import 'dart:convert';
+import 'dart:io';
 
 import 'package:crypto/crypto.dart';
 import 'package:dynamic_theme/dynamic_theme.dart';
@@ -28,24 +29,34 @@ import 'package:violet/pages/lock/lock_screen.dart';
 import 'package:violet/pages/splash/splash_page.dart';
 import 'package:violet/settings/settings.dart';
 import 'package:violet/style/palette.dart';
+import 'package:sqflite_common_ffi/sqflite_ffi.dart';
+import 'package:sqflite/sqflite.dart';
 
 Future<void> main() async {
   runZonedGuarded<Future<void>>(() async {
+    // https://stackoverflow.com/questions/66971604/sqlite-with-flutter-desktop-windows
+    if (Platform.isWindows || Platform.isLinux) {
+        // Initialize FFI
+        sqfliteFfiInit();
+        // Change the default factory
+        databaseFactory = databaseFactoryFfi;
+    }
+
     WidgetsFlutterBinding.ensureInitialized();
 
-    await FlutterDownloader.initialize(); // @dependent: android
+    if(Platform.isAndroid || Platform.isIOS) await FlutterDownloader.initialize(); // @dependent: android
     FlareCache.doesPrune = false;
     FlutterError.onError = recordFlutterError;
 
-    await initFirebase();
+    if(Platform.isAndroid || Platform.isIOS) await initFirebase();
     await Settings.initFirst();
-    await warmupFlare();
+    if(Platform.isAndroid || Platform.isIOS) await warmupFlare();
 
     runApp(const MyApp());
   }, (exception, stack) async {
     Logger.error('[async-error] E: $exception\n$stack');
 
-    await FirebaseCrashlytics.instance.recordError(exception, stack);
+    if(Platform.isAndroid || Platform.isIOS) await FirebaseCrashlytics.instance.recordError(exception, stack);
   });
 }
 
@@ -67,15 +78,15 @@ Future<void> recordFlutterError(FlutterErrorDetails flutterErrorDetails) async {
       '[unhandled-error] E: ${flutterErrorDetails.exceptionAsString()}\n'
       '${flutterErrorDetails.stack}');
 
-  await FirebaseCrashlytics.instance.recordFlutterError(flutterErrorDetails);
+  if(Platform.isAndroid || Platform.isIOS) FirebaseCrashlytics.instance.recordFlutterError(flutterErrorDetails);
 }
 
 Future<void> initFirebase() async {
   await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
 
   // check user-id is set
-  final prefs = await SharedPreferences.getInstance();
-  var id = prefs.getString('fa_userid');
+  final prefs = await MultiPreferences.getInstance();
+  var id = await prefs.getString('fa_userid');
   if (id == null) {
     id = sha1.convert(utf8.encode(DateTime.now().toString())).toString();
     prefs.setString('fa_userid', id);
@@ -153,7 +164,7 @@ class MyApp extends StatelessWidget {
         Settings.useLockScreen ? const LockScreen() : const SplashPage();
 
     final navigatorObservers = [
-      FirebaseAnalyticsObserver(analytics: FirebaseAnalytics.instance),
+      if(Platform.isAndroid || Platform.isIOS) FirebaseAnalyticsObserver(analytics: FirebaseAnalytics.instance),
     ];
 
     return GetMaterialApp(
diff --git a/lib/pages/article_info/article_info_page.dart b/lib/pages/article_info/article_info_page.dart
index 796811078..8c9855082 100644
--- a/lib/pages/article_info/article_info_page.dart
+++ b/lib/pages/article_info/article_info_page.dart
@@ -601,8 +601,8 @@ class __CommentAreaState extends State<_CommentArea> {
 
     Future.delayed(const Duration(milliseconds: 100)).then((value) async {
       if (widget.queryResult.ehash() != null) {
-        final prefs = await SharedPreferences.getInstance();
-        var cookie = prefs.getString('eh_cookies');
+        final prefs = await MultiPreferences.getInstance();
+        var cookie = await prefs.getString('eh_cookies');
         if (cookie != null) {
           try {
             final html = await EHSession.requestString(
@@ -776,8 +776,8 @@ class __InfoAreaWidgetState extends State<_InfoAreaWidget> {
           return;
         }
 
-        final prefs = await SharedPreferences.getInstance();
-        var cookie = prefs.getString('eh_cookies');
+        final prefs = await MultiPreferences.getInstance();
+        var cookie = await prefs.getString('eh_cookies');
         if (cookie == null || !cookie.contains('ipb_pass_hash')) {
           await showOkDialog(context, 'Please, Login First!');
           return;
diff --git a/lib/pages/bookmark/group/group_article_list_page.dart b/lib/pages/bookmark/group/group_article_list_page.dart
index 1f2499260..7bac4ce0e 100644
--- a/lib/pages/bookmark/group/group_article_list_page.dart
+++ b/lib/pages/bookmark/group/group_article_list_page.dart
@@ -93,8 +93,8 @@ class _GroupArticleListPageState extends State<GroupArticleListPage> {
   }
 
   Future<void> _loadBookmarkAlignType() async {
-    final prefs = await SharedPreferences.getInstance();
-    nowType = prefs.getInt('bookmark_${widget.groupId}') ?? 3;
+    final prefs = await MultiPreferences.getInstance();
+    nowType = await prefs.getInt('bookmark_${widget.groupId}') ?? 3;
   }
 
   Future<void> _refreshAsync() async {
@@ -355,7 +355,7 @@ class _GroupArticleListPageState extends State<GroupArticleListPage> {
                 nowType = value;
                 itemKeys.clear();
 
-                final prefs = await SharedPreferences.getInstance();
+                final prefs = await MultiPreferences.getInstance();
                 await prefs.setInt('bookmark_${widget.groupId}', value);
                 await Future.delayed(const Duration(milliseconds: 50), () {
                   _shouldRebuild = true;
diff --git a/lib/pages/community/community_page.dart b/lib/pages/community/community_page.dart
index a0cbc5027..1319d1c2d 100644
--- a/lib/pages/community/community_page.dart
+++ b/lib/pages/community/community_page.dart
@@ -36,12 +36,12 @@ class _CommunityPageState extends State<CommunityPage>
 
     // load boards
     Future.delayed(const Duration(milliseconds: 100)).then((value) async {
-      final prefs = await SharedPreferences.getInstance();
-      var id = prefs.getString('saved_community_id');
-      var pw = prefs.getString('saved_community_pw');
+      final prefs = await MultiPreferences.getInstance();
+      var id = await prefs.getString('saved_community_id');
+      var pw = await prefs.getString('saved_community_pw');
 
       _userId = id ?? 'None';
-      _userAppId = prefs.getString('fa_userid')!;
+      _userAppId = (await prefs.getString('fa_userid'))!;
       setState(() {});
 
       if (id != null && pw != null) {
@@ -66,12 +66,12 @@ class _CommunityPageState extends State<CommunityPage>
   }
 
   Future<void> _trylogin() async {
-    final prefs = await SharedPreferences.getInstance();
-    var id = prefs.getString('saved_community_id');
-    var pw = prefs.getString('saved_community_pw');
+    final prefs = await MultiPreferences.getInstance();
+    var id = await prefs.getString('saved_community_id');
+    var pw = await prefs.getString('saved_community_pw');
 
     _userId = id ?? 'None';
-    _userAppId = prefs.getString('fa_userid')!;
+    _userAppId = (await prefs.getString('fa_userid'))!;
     setState(() {});
 
     if (id != null && pw != null) {
@@ -275,7 +275,7 @@ class _CommunityPageState extends State<CommunityPage>
                               }
                             }
 
-                            final prefs = await SharedPreferences.getInstance();
+                            final prefs = await MultiPreferences.getInstance();
                             await prefs.setString('saved_community_id', id);
                             await prefs.setString('saved_community_pw', pw);
 
diff --git a/lib/pages/community/user_status_card.dart b/lib/pages/community/user_status_card.dart
index 6a3977b6e..2c73891db 100644
--- a/lib/pages/community/user_status_card.dart
+++ b/lib/pages/community/user_status_card.dart
@@ -45,8 +45,8 @@ class _UserStatusCardState extends ThemeSwitchableState<UserStatusCard>
 
     // load boards
     Future.delayed(const Duration(milliseconds: 100)).then((value) async {
-      final prefs = await SharedPreferences.getInstance();
-      _userAppId = prefs.getString('fa_userid')!;
+      final prefs = await MultiPreferences.getInstance();
+      _userAppId = (await prefs.getString('fa_userid'))!;
       setState(() {});
 
       // if (id != null && pw != null) {
diff --git a/lib/pages/community/user_status_card_dead.dart b/lib/pages/community/user_status_card_dead.dart
index 49fb68ca5..45ba2374f 100644
--- a/lib/pages/community/user_status_card_dead.dart
+++ b/lib/pages/community/user_status_card_dead.dart
@@ -42,11 +42,11 @@ class _UserStatusCardState extends State<UserStatusCard>
 
     // load boards
     Future.delayed(const Duration(milliseconds: 100)).then((value) async {
-      final prefs = await SharedPreferences.getInstance();
-      var id = prefs.getString('saved_community_id');
-      var pw = prefs.getString('saved_community_pw');
+      final prefs = await MultiPreferences.getInstance();
+      var id = await prefs.getString('saved_community_id');
+      var pw = await prefs.getString('saved_community_pw');
 
-      _userAppId = prefs.getString('fa_userid')!;
+      _userAppId = (await prefs.getString('fa_userid'))!;
       setState(() {});
 
       if (id != null && pw != null) {
@@ -71,12 +71,12 @@ class _UserStatusCardState extends State<UserStatusCard>
   }
 
   Future<void> _trylogin() async {
-    final prefs = await SharedPreferences.getInstance();
-    var id = prefs.getString('saved_community_id');
-    var pw = prefs.getString('saved_community_pw');
+    final prefs = await MultiPreferences.getInstance();
+    var id = await prefs.getString('saved_community_id');
+    var pw = await prefs.getString('saved_community_pw');
 
     _userId = id ?? 'None';
-    _userAppId = prefs.getString('fa_userid')!;
+    _userAppId = (await prefs.getString('fa_userid'))!;
     setState(() {});
 
     if (id != null && pw != null) {
@@ -325,7 +325,7 @@ class _UserStatusCardState extends State<UserStatusCard>
                       }
                     }
 
-                    final prefs = await SharedPreferences.getInstance();
+                    final prefs = await MultiPreferences.getInstance();
                     await prefs.setString('saved_community_id', id);
                     await prefs.setString('saved_community_pw', pw);
 
diff --git a/lib/pages/database_download/database_download_page.dart b/lib/pages/database_download/database_download_page.dart
index ff66f4ad0..c5e3ab443 100644
--- a/lib/pages/database_download/database_download_page.dart
+++ b/lib/pages/database_download/database_download_page.dart
@@ -59,11 +59,20 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
 
   Future checkDownload() async {
     try {
-      final prefs = await SharedPreferences.getInstance();
-      if (prefs.getInt('db_exists') == 1) {
+      final prefs = await MultiPreferences.getInstance();
+      if ((await prefs.getInt('db_exists')) == 1) {
         var dbPath = Platform.isAndroid
             ? '${(await getApplicationDocumentsDirectory()).path}/data/data.db'
             : '${await getDatabasesPath()}/data.db';
+        if(Platform.isLinux){
+          var home = '';
+          Platform.environment.forEach((key, value) {
+            if(key == 'HOME'){
+              home = value;
+            }
+          });
+          dbPath = '${home}/.violet/data.db';
+        }
         if (await File(dbPath).exists()) await File(dbPath).delete();
         var dir = await getApplicationDocumentsDirectory();
         if (await Directory('${dir.path}/data').exists()) {
@@ -76,11 +85,13 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
     }
 
     if (Platform.isAndroid) {
-      downloadFileAndroid();
+      await downloadFileAndroid();
     } else if (Platform.isIOS) {
       // p7zip is not supported on IOS.
       // So, download raw database.
-      downloadFileIOS();
+      await downloadFileIOS();
+    } else if (Platform.isLinux){
+      await downloadFileLinux();
     }
   }
 
@@ -99,6 +110,14 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
     }
   }
 
+  Future<void> downloadFileLinux() async {
+    try {
+      await downloadFileLinuxWith('latest', true);
+    } catch(e){
+      await downloadFileLinuxWith('old', false);
+    }
+  }
+
   Future<void> downloadFileAndroidWith(String target, bool _throw) async {
     Dio dio = Dio();
     int oneMega = 1024 * 1024;
@@ -179,7 +198,7 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
 
       await File('${dir.path}/db.sql.7z').delete();
 
-      final prefs = await SharedPreferences.getInstance();
+      final prefs = await MultiPreferences.getInstance();
       await prefs.setInt('db_exists', 1);
       await prefs.setString('databasetype', widget.dbType!);
       await prefs.setString(
@@ -281,7 +300,118 @@ class DataBaseDownloadPageState extends State<DataBaseDownloadPage> {
       });
       timer.cancel();
 
-      final prefs = await SharedPreferences.getInstance();
+      final prefs = await MultiPreferences.getInstance();
+      await prefs.setInt('db_exists', 1);
+      await prefs.setString('databasetype', widget.dbType!);
+      await prefs.setString(
+          'databasesync', SyncManager.getLatestDB().getDateTime().toString());
+      await prefs.setInt('synclatest', SyncManager.getLatestDB().timestamp);
+
+      setState(() {
+        downloading = false;
+      });
+
+      await DataBaseManager.reloadInstance();
+
+      try {
+        if (Settings.useOptimizeDatabase) await deleteUnused();
+      } catch(e1,st1){
+        Logger.error('[deleteUnused] E: $e1\n'
+            '$st1');
+      }
+      try {
+        await indexing();
+      } catch(e1,st1){
+        Logger.error('[indexing] E: $e1\n'
+            '$st1');
+      }
+
+      if (widget.isSync == true) {
+        Navigator.pop(context);
+      } else {
+        setState(() {
+          baseString = Translations.instance!.trans('dbdcomplete');
+          _showCloseAppButton = true;
+        });
+      }
+
+      return;
+    } catch (e, st) {
+      Logger.error('[DBDownload] E: $e\n'
+          '$st');
+      if(_throw) throw e;
+    }
+
+    setState(() {
+      downloading = false;
+      baseString = Translations.instance!.trans('dbdretry');
+    });
+  }
+  Future<void> downloadFileLinuxWith(String target, bool _throw) async {
+    Dio dio = Dio();
+    int oneMega = 1024 * 1024;
+    int nu = 0;
+    int latest = 0;
+    int tlatest = 0;
+    int tnu = 0;
+
+    try {
+      var dir = '';
+      if(Platform.isLinux){
+        Platform.environment.forEach((key, value) => {
+          if(key == 'HOME'){
+            dir = value
+          }
+        });
+        dir = '${dir}/.violet';
+      }
+      if (await File('$dir/data.db').exists()) {
+        await File('$dir/data.db').delete();
+      }
+      switch(target){
+        case 'latest': await SyncManager.checkSyncLatest(_throw); break;
+        case 'old': await SyncManager.checkSyncOld(_throw); break;
+        default: {
+          try {
+            await downloadFileLinuxWith('latest', true);
+          } catch(e){
+            await downloadFileLinuxWith('old', false);
+          }
+          return;
+        }
+      }
+
+      Timer timer = Timer.periodic(
+          const Duration(seconds: 1),
+          (Timer timer) => setState(() {
+                final speed = tlatest / 1024;
+                speedString = '${_formatNumberWithComma(speed)} KB/s';
+                tlatest = tnu;
+                tnu = 0;
+              }));
+      await dio.download(
+          SyncManager.getLatestDB().getDBDownloadUrliOS(widget.dbType!),
+          '$dir/data.db', onReceiveProgress: (rec, total) {
+        nu += rec - latest;
+        tnu += rec - latest;
+        latest = rec;
+        if (nu <= oneMega) return;
+
+        nu = 0;
+
+        setState(
+          () {
+            downloading = true;
+            final progressPercent = (rec / total) * 100;
+            progressString = '${_formatNumberWithComma(progressPercent)}%';
+            downString =
+                '[${_formatNumberWithComma(rec)}/${_formatNumberWithComma(total)}]';
+          },
+        );
+      });
+      timer.cancel();
+
+      final prefs = await MultiPreferences.getInstance();
       await prefs.setInt('db_exists', 1);
       await prefs.setString('databasetype', widget.dbType!);
       await prefs.setString(
diff --git a/lib/pages/download/download_page.dart b/lib/pages/download/download_page.dart
index df0984347..a32a12b03 100644
--- a/lib/pages/download/download_page.dart
+++ b/lib/pages/download/download_page.dart
@@ -433,9 +433,9 @@ class _DownloadPageState extends ThemeSwitchableState<DownloadPage>
                   type: MaterialType.transparency,
                   child: InkWell(
                     onTap: () async {
-                      final prefs = await SharedPreferences.getInstance();
+                      final prefs = await MultiPreferences.getInstance();
                       if (!Settings.useInnerStorage &&
-                          prefs.getBool('checkauthalready') == null) {
+                          (await prefs.getBool('checkauthalready')) == null) {
                         await prefs.setBool('checkauthalready', true);
                         if (await Permission.manageExternalStorage.request() ==
                             PermissionStatus.denied) {
diff --git a/lib/pages/lock/lock_screen.dart b/lib/pages/lock/lock_screen.dart
index d4a8d8274..03ee8f05b 100644
--- a/lib/pages/lock/lock_screen.dart
+++ b/lib/pages/lock/lock_screen.dart
@@ -288,8 +288,8 @@ class _LockScreenState extends State<LockScreen> with TickerProviderStateMixin {
   }
 
   Future<void> _checkPasswordIsCorret() async {
-    final prefs = await SharedPreferences.getInstance();
-    final pinPass = prefs.getString('pinPass');
+    final prefs = await MultiPreferences.getInstance();
+    final pinPass = await prefs.getString('pinPass');
 
     if (!widget.isRegisterMode && _pin.join() == pinPass) {
       if (widget.isSecureMode) {
@@ -330,7 +330,7 @@ class _LockScreenState extends State<LockScreen> with TickerProviderStateMixin {
     });
   }
 
-  Future<void> passwordRegisterInteraction(SharedPreferences prefs) async {
+  Future<void> passwordRegisterInteraction(MultiPreferences prefs) async {
     await prefs.setString('pinPass', _pin.join());
     Future.delayed(const Duration(milliseconds: 300)).then((value) {
       fToast.showToast(
diff --git a/lib/pages/main/info/lab_page.dart b/lib/pages/main/info/lab_page.dart
index c5af39942..2334d57fd 100644
--- a/lib/pages/main/info/lab_page.dart
+++ b/lib/pages/main/info/lab_page.dart
@@ -221,7 +221,7 @@ class _LaboratoryPageState extends State<LaboratoryPage> {
                     if (getValid('${text.text}saltff') == '605f372') {
                       await showOkDialog(context, 'Successful!');
 
-                      final prefs = await SharedPreferences.getInstance();
+                      final prefs = await MultiPreferences.getInstance();
                       await prefs.setString('labmasterkey', text.text);
                     } else {
                       await showOkDialog(context, 'Fail!');
@@ -368,8 +368,8 @@ class _LaboratoryPageState extends State<LaboratoryPage> {
   }
 
   Future<bool> _checkMaterKey() async {
-    final prefs = await SharedPreferences.getInstance();
-    var key = prefs.getString('labmasterkey');
+    final prefs = await MultiPreferences.getInstance();
+    var key = await prefs.getString('labmasterkey');
     if (key != null && getValid('${key}saltff') == '605f372') {
       return true;
     }
diff --git a/lib/pages/main/main_page.dart b/lib/pages/main/main_page.dart
index 495ea5d81..b5e94e007 100644
--- a/lib/pages/main/main_page.dart
+++ b/lib/pages/main/main_page.dart
@@ -284,8 +284,8 @@ class _MainPageState extends ThemeSwitchableState<MainPage>
     }).then((value) async {
       if (updateContinued) return;
 
-      final prefs = await SharedPreferences.getInstance();
-      if (prefs.getBool('usevioletserver_check') != null) return;
+      final prefs = await MultiPreferences.getInstance();
+      if ((await prefs.getBool('usevioletserver_check')) != null) return;
 
       var bb = await showYesNoDialog(
           context, Translations.of(context).trans('violetservermsg'));
@@ -475,9 +475,9 @@ class _VersionAreaWidgetState extends State<_VersionAreaWidget> {
   }
 
   _onSyncPressed() async {
-    final prefs = await SharedPreferences.getInstance();
+    final prefs = await MultiPreferences.getInstance();
     var latestDB = SyncManager.getLatestDB().getDateTime();
-    var lastDB = prefs.getString('databasesync');
+    var lastDB = await prefs.getString('databasesync');
 
     if (lastDB != null &&
         latestDB.difference(DateTime.parse(lastDB)).inHours < 1) {
diff --git a/lib/pages/search/search_page.dart b/lib/pages/search/search_page.dart
index 28e6d7c98..476c81588 100644
--- a/lib/pages/search/search_page.dart
+++ b/lib/pages/search/search_page.dart
@@ -106,10 +106,10 @@ class _SearchPageState extends ThemeSwitchableState<SearchPage>
   }
 
   welcomeMessage() async {
-    final prefs = await SharedPreferences.getInstance();
+    final prefs = await MultiPreferences.getInstance();
 
-    if (prefs.getBool('litemode_welcome_message') == null) {
-      prefs.setBool('litemode_welcome_message', true);
+    if ((await prefs.getBool('litemode_welcome_message')) == null) {
+      await prefs.setBool('litemode_welcome_message', true);
       showOkDialog(context, '라이트 모드가 활성화되었습니다! 설정에서 라이트 모드를 끌 수 있습니다.');
     }
   }
diff --git a/lib/pages/settings/lock_setting_page.dart b/lib/pages/settings/lock_setting_page.dart
index 973679cd2..985801b1b 100644
--- a/lib/pages/settings/lock_setting_page.dart
+++ b/lib/pages/settings/lock_setting_page.dart
@@ -109,8 +109,8 @@ class _LockSettingPageState extends State<LockSettingPage> {
   }
 
   Future<void> _toggleAppLock() async {
-    final prefs = await SharedPreferences.getInstance();
-    if (prefs.getString('pinPass') == null) {
+    final prefs = await MultiPreferences.getInstance();
+    if ((await prefs.getString('pinPass')) == null) {
       showOkDialog(context,
           Translations.of(context).trans('registerfinbeforeuseapplock'));
       return;
diff --git a/lib/pages/settings/route.dart b/lib/pages/settings/route.dart
index 16d31e4c5..e284ff723 100644
--- a/lib/pages/settings/route.dart
+++ b/lib/pages/settings/route.dart
@@ -37,7 +37,7 @@ class _RouteDialogState extends State<RouteDialog> {
               Settings.searchRule[newIndex - 1] = old;
             }
 
-            final prefs = await SharedPreferences.getInstance();
+            final prefs = await MultiPreferences.getInstance();
             await prefs.setString('searchrule', Settings.searchRule.join('|'));
             setState(() {});
           },
@@ -102,7 +102,7 @@ class _ImageRouteDialogState extends State<ImageRouteDialog> {
               Settings.routingRule[newIndex - 1] = old;
             }
 
-            final prefs = await SharedPreferences.getInstance();
+            final prefs = await MultiPreferences.getInstance();
             await prefs.setString(
                 'routingrule', Settings.routingRule.join('|'));
             setState(() {});
diff --git a/lib/pages/settings/settings_page.dart b/lib/pages/settings/settings_page.dart
index 6023511a2..9078a6223 100644
--- a/lib/pages/settings/settings_page.dart
+++ b/lib/pages/settings/settings_page.dart
@@ -1212,9 +1212,9 @@ class _SettingsPageState extends State<SettingsPage>
             onTap: Variables.databaseDecompressed
                 ? null
                 : () async {
-                    final prefs = await SharedPreferences.getInstance();
+                    final prefs = await MultiPreferences.getInstance();
                     var latestDB = SyncManager.getLatestDB().getDateTime();
-                    var lastDB = prefs.getString('databasesync');
+                    var lastDB = await prefs.getString('databasesync');
 
                     if (lastDB != null &&
                         latestDB.difference(DateTime.parse(lastDB)).inHours <
@@ -1503,9 +1503,9 @@ class _SettingsPageState extends State<SettingsPage>
             ),
             trailing: const Icon(Icons.keyboard_arrow_right),
             onTap: () async {
-              final prefs = await SharedPreferences.getInstance();
+              final prefs = await MultiPreferences.getInstance();
               // 32개 => 50mb/s
-              var tc = prefs.getInt('thread_count');
+              var tc = await prefs.getInt('thread_count');
 
               TextEditingController text =
                   TextEditingController(text: tc.toString());
@@ -1797,8 +1797,8 @@ class _SettingsPageState extends State<SettingsPage>
                     Translations.of(context).trans('restorebookmarkmsg'),
                     Translations.of(context).trans('warning'));
 
-                final prefs = await SharedPreferences.getInstance();
-                var myappid = prefs.getString('fa_userid');
+                final prefs = await MultiPreferences.getInstance();
+                var myappid = await prefs.getString('fa_userid');
 
                 // 1. 북마크 유저 아이디 선택
                 TextEditingController text =
@@ -2014,7 +2014,7 @@ class _SettingsPageState extends State<SettingsPage>
               trailing: const Icon(Icons.keyboard_arrow_right),
             ),
             onTap: () async {
-              final prefs = await SharedPreferences.getInstance();
+              final prefs = await MultiPreferences.getInstance();
               var ehc = prefs.getString('eh_cookies');
 
               if (ehc == null || ehc == '') {
@@ -2251,7 +2251,7 @@ class _SettingsPageState extends State<SettingsPage>
 
               if (dialog == null) return;
 
-              final prefs = await SharedPreferences.getInstance();
+              final prefs = await MultiPreferences.getInstance();
               if (dialog == 1) {
                 var result = await Navigator.of(context).push(MaterialPageRoute(
                     builder: (context) => const LoginScreen()));
@@ -2269,7 +2269,7 @@ class _SettingsPageState extends State<SettingsPage>
                   );
                 }
               } else if (dialog == 2) {
-                var cookie = prefs.getString('eh_cookies');
+                var cookie = await prefs.getString('eh_cookies');
 
                 var iController = TextEditingController(
                     text:
diff --git a/lib/pages/splash/splash_page.dart b/lib/pages/splash/splash_page.dart
index eb9504348..0352952a1 100644
--- a/lib/pages/splash/splash_page.dart
+++ b/lib/pages/splash/splash_page.dart
@@ -166,8 +166,8 @@ class _SplashPageState extends State<SplashPage> {
   };
 
   Future<void> checkAuth() async {
-    final prefs = await SharedPreferences.getInstance();
-    if (prefs.getBool('checkauthalready') == null) {
+    final prefs = await MultiPreferences.getInstance();
+    if ((await prefs.getBool('checkauthalready')) == null) {
       await prefs.setBool('checkauthalready', true);
       if (await Permission.manageExternalStorage.request() ==
           PermissionStatus.denied) {
@@ -217,8 +217,9 @@ class _SplashPageState extends State<SplashPage> {
 
     // this may be slow down to loading
     _changeMessage('check network...');
-    var connectivityResult = await (Connectivity().checkConnectivity());
-    if (connectivityResult != ConnectivityResult.none) {
+    var connectivityResult;
+    if(!Platform.isLinux) connectivityResult = await (Connectivity().checkConnectivity());
+    if (Platform.isLinux || connectivityResult != ConnectivityResult.none) {
       _changeMessage('loading script...');
       await ScriptManager.init();
     }
@@ -238,8 +239,8 @@ class _SplashPageState extends State<SplashPage> {
     //     await Logger.exportLog();
     //   } catch (_) {}
 
-    final prefs = await SharedPreferences.getInstance();
-    if (prefs.getInt('db_exists') == 1 && !widget.switching) {
+    final prefs = await MultiPreferences.getInstance();
+    if (((await prefs.getInt('db_exists')) == 1) && !widget.switching) {
       if (connectivityResult != ConnectivityResult.none) {
         try {
           _changeMessage('check sync...');
diff --git a/lib/server/community/anon.dart b/lib/server/community/anon.dart
index cea88f18e..24806c52d 100644
--- a/lib/server/community/anon.dart
+++ b/lib/server/community/anon.dart
@@ -8,6 +8,7 @@ import 'package:shared_preferences/shared_preferences.dart';
 import 'package:violet/log/log.dart';
 import 'package:violet/server/violet.dart';
 import 'package:violet/server/wsalt.dart';
+import 'package:violet/settings/settings.dart';
 
 class VioletCommunityAnonymous {
   static Future<dynamic> _getV(String api, String params) async {
@@ -50,8 +51,8 @@ class VioletCommunityAnonymous {
   static String? _userAppId;
   static Future<String> _getUserAppId() async {
     if (_userAppId == null) {
-      final prefs = await SharedPreferences.getInstance();
-      _userAppId = prefs.getString('fa_userid');
+      final prefs = await MultiPreferences.getInstance();
+      _userAppId = await prefs.getString('fa_userid');
     }
     return _userAppId!;
   }
diff --git a/lib/server/violet.dart b/lib/server/violet.dart
index c28e228b5..005fd2695 100644
--- a/lib/server/violet.dart
+++ b/lib/server/violet.dart
@@ -279,8 +279,8 @@ class VioletServer {
   static String? _userId;
   static Future<String> _getUserAppId() async {
     if (_userId == null) {
-      final prefs = await SharedPreferences.getInstance();
-      _userId = prefs.getString('fa_userid');
+      final prefs = await MultiPreferences.getInstance();
+      _userId = await prefs.getString('fa_userid');
     }
     return _userId!;
   }
diff --git a/lib/settings/settings.dart b/lib/settings/settings.dart
index e19dd08f3..dc068befa 100644
--- a/lib/settings/settings.dart
+++ b/lib/settings/settings.dart
@@ -7,18 +7,228 @@ import 'package:device_info_plus/device_info_plus.dart';
 import 'package:firebase_crashlytics/firebase_crashlytics.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_windowmanager/flutter_windowmanager.dart';
+import 'package:get/get.dart';
 import 'package:path/path.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:permission_handler/permission_handler.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:violet/component/hitomi/shielder.dart';
+import 'package:violet/database/database.dart';
 import 'package:violet/database/user/download.dart';
+import 'package:violet/database/user/settings.dart';
 import 'package:violet/log/log.dart';
 import 'package:violet/platform/android_external_storage_directory.dart';
 import 'package:violet/settings/device_type.dart';
 
+class MultiPreferences {
+  static late SharedPreferences shared_prefs;
+  static late SettingsManager db_prefs;
+  
+  static MultiPreferences? _instance;
+
+  static MultiPreferences create() {
+    return MultiPreferences();
+  }
+
+  @protected
+  @mustCallSuper
+  void dispose() async {
+    if(Platform.isLinux){
+      db_prefs.dispose();
+    }
+  }
+
+  static Future<MultiPreferences> getInstance() async {
+    // switch(true){
+    //   case Platform.isAndroid:
+    //   case Platform.isIOS: 
+    //     shared_prefs = await SharedPreferences.getInstance();
+    //     break;
+    //   case Platform.isLinux:
+    //   case Platform.isMacOS: 
+    //     db_prefs = await SettingsManager.getInstance();
+    //     break;
+    // }
+    if(Platform.isAndroid || Platform.isIOS){
+      shared_prefs = await SharedPreferences.getInstance();
+    } else if(Platform.isLinux){
+      db_prefs = await SettingsManager.getInstance();
+    }
+    if (_instance == null) {
+      _instance = create();
+    }
+    return _instance!;
+  }
+  Future<void> init() async {
+    if(Platform.isLinux){
+      await db_prefs.execute('CREATE TABLE IF NOT EXISTS SharedPreferences (key STRING, value STRING,type STRING );');
+    }
+  }
+
+  Future<String?> getString(String key) async {
+    if(Platform.isAndroid || Platform.isIOS){
+      return Future.value(shared_prefs.getString(key));
+    } else if(Platform.isLinux){
+      try {
+        var res = await db_prefs.query('SELECT value FROM SharedPreferences WHERE key="${key}" AND type="STRING";');
+        if(res.isEmpty) return Future.value(null);
+        var a = res.first;
+      } catch(e){
+        return Future.value(null);
+      }
+    } else {
+      throw Error();
+    }
+  }
+  
+  Future<void> setString(String key,String value) async {
+    if(Platform.isAndroid || Platform.isIOS){
+      shared_prefs.setString(key, value);
+    } else if(Platform.isLinux){
+      String? result = null;
+      try {
+        result = await getString(key);
+      } catch(e){
+        result = null;
+      }
+      if(result != null){
+        await db_prefs.execute('UPDATE SharedPreferences SET value="${value}" WHERE key="${key}" AND type="STRING";');
+      } else {
+        await db_prefs.execute('INSERT INTO SharedPreferences (key,value,type) VALUES ("${key}","${value}","STRING");');
+      }
+    }
+  }
+
+  Future<bool?> getBool(String key) async {
+    if(Platform.isAndroid || Platform.isIOS){
+      return Future.value(shared_prefs.getBool(key));
+    } else if(Platform.isLinux){
+      try {
+        var res = await db_prefs.query('SELECT value FROM SharedPreferences WHERE key="${key}" AND type="BOOL";');
+        if(res.isEmpty) return Future.value(null);
+        var a = res.first;
+        if(res != null){
+          if(res.first != null){
+            if(res.first.values != null){
+              if(res.first.values.first != null){
+                return bool.parse(res.first.values.first);
+              }
+            }
+          }
+        }
+        return Future.value(null);
+      } catch(e){
+        return Future.value(null);
+      }
+    } else {
+      throw Error();
+    }
+  }
+  Future<void> setBool(String key,bool value) async {
+    if(Platform.isAndroid || Platform.isIOS){
+      await shared_prefs.setBool(key, value);
+    } else if(Platform.isLinux){
+      bool? result = null;
+      try {
+        result = await getBool(key);
+      } catch(e){
+        result = null;
+      }
+      if(result != null){
+        await db_prefs.execute('UPDATE SharedPreferences SET value="${value}" WHERE key="${key}" AND type="BOOL";');
+      } else {
+        await db_prefs.execute('INSERT INTO SharedPreferences(key,value,type) VALUES("${key}","${value}","BOOL");');
+      }
+    }
+  }
+
+  Future<double?> getDouble(String key) async {
+    if(Platform.isAndroid || Platform.isIOS){
+      return Future.value(shared_prefs.getDouble(key));
+    } else if(Platform.isLinux){
+      try {
+        var res = await db_prefs.query('SELECT value FROM SharedPreferences WHERE key="${key}" AND type="DOUBLE";');
+        if(res.isEmpty) return Future.value(null);
+        if(res != null){
+          if(res.first != null){
+            if(res.first.values != null){
+              if(res.first.values.first != null){
+                return double.parse(res.first.values.first);
+              }
+            }
+          }
+        }
+        return Future.value(null);
+      } catch(e){
+        return Future.value(null);
+      }
+    } else {
+      throw Error();
+    }
+  }
+  Future<void> setDouble(String key,double value) async {
+    if(Platform.isAndroid || Platform.isIOS){
+      await shared_prefs.setDouble(key, value);
+    } else if(Platform.isLinux){
+      double? result = null;
+      try {
+        result = await getDouble(key);
+      } catch(e){
+        result = null;
+      }
+      if(result != null){
+        await db_prefs.execute('UPDATE SharedPreferences SET value="${value}" WHERE key="${key}" AND type="DOUBLE";');
+      } else {
+        await db_prefs.execute('INSERT INTO SharedPreferences(key,value,type) VALUES("${key}","${value}","DOUBLE");');
+      }
+    }
+  }
+
+  Future<int?> getInt(String key) async {
+    if(Platform.isAndroid || Platform.isIOS){
+      return Future.value(shared_prefs.getInt(key));
+    } else if(Platform.isLinux){
+      try{
+        var res = await db_prefs.query('SELECT value FROM SharedPreferences WHERE key="${key}" AND TYPE="INT";');
+        if(res.isEmpty) return Future.value(null);
+        if(res != null){
+          if(res.first != null){
+            if(res.first.values != null){
+              if(res.first.values.first != null){
+                return int.parse(res.first.values.first);
+              }
+            }
+          }
+        }
+        return Future.value(null);
+      } catch(e){
+        return Future.value(null);
+      }
+    } else {
+      throw Error();
+    }
+  }
+  Future<void> setInt(String key,int value) async {
+    if(Platform.isAndroid || Platform.isIOS){
+      await shared_prefs.setInt(key, value);
+    } else if(Platform.isLinux){
+      int? result = null;
+      try {
+        result = await getInt(key);
+      } catch(e){
+        result = null;
+      }
+      if(result != null){
+        await db_prefs.execute('UPDATE SharedPreferences SET value="${value}" WHERE key="${key}" AND type="INT";');
+      } else {
+        await db_prefs.execute('INSERT INTO SharedPreferences(key,value,type) VALUES("${key}","${value}","INT");');
+      }
+    }
+  }
+}
+
 class Settings {
-  static late final SharedPreferences prefs;
+  static late final MultiPreferences prefs;
 
   // Color Settings
   static late Color themeColor; // default light
@@ -109,7 +319,8 @@ class Settings {
   static late bool useSecureMode;
 
   static Future<void> initFirst() async {
-    prefs = await SharedPreferences.getInstance();
+    prefs = await MultiPreferences.getInstance();
+    await prefs.init();
 
     final mc = await _getInt('majorColor', Colors.purple.value);
     final mac = await _getInt('majorAccentColor', Colors.purpleAccent.value);
@@ -124,7 +335,7 @@ class Settings {
 
     liteMode = await _getBool('liteMode', true);
 
-    language = prefs.getString('language');
+    language = await prefs.getString('language');
 
     useLockScreen = await _getBool('useLockScreen');
     useSecureMode = await _getBool('useSecureMode');
@@ -148,9 +359,9 @@ class Settings {
     downloadResultType = await _getInt('downloadResultType', 3);
     downloadAlignType = await _getInt('downloadAlignType', 0);
 
-    var includetags = prefs.getString('includetags');
-    var excludetags = prefs.getString('excludetags');
-    var blurredtags = prefs.getString('blurredtags');
+    var includetags = await prefs.getString('includetags');
+    var excludetags = await prefs.getString('excludetags');
+    var blurredtags = await prefs.getString('blurredtags');
 
     if (includetags == null) {
       var language = 'lang:english';
@@ -188,7 +399,7 @@ class Settings {
       await prefs.setString('routingrule', routingRule.join('|'));
     }
 
-    var databasetype = prefs.getString('databasetype');
+    var databasetype = await prefs.getString('databasetype');
     if (databasetype == null) {
       var langcode = Platform.localeName.split('_')[0];
       var acclc = ['ko', 'ja', 'en', 'ru', 'zh'];
@@ -219,7 +430,7 @@ class Settings {
     showPageNumberIndicator = await _getBool('showPageNumberIndicator', true);
     showRecordJumpMessage = await _getBool('showRecordJumpMessage', true);
 
-    var tUseInnerStorage = prefs.getBool('useinnerstorage');
+    var tUseInnerStorage = await prefs.getBool('useinnerstorage');
     if (tUseInnerStorage == null) {
       tUseInnerStorage = Platform.isIOS;
       if (Platform.isAndroid) {
@@ -234,14 +445,14 @@ class Settings {
 
     String? tDownloadBasePath;
     if (Platform.isAndroid) {
-      tDownloadBasePath = prefs.getString('downloadbasepath');
+      tDownloadBasePath = await prefs.getString('downloadbasepath');
       final String path = await AndroidExternalStorageDirectory.instance
           .getExternalStorageDirectory();
 
       var androidInfo = await DeviceInfoPlugin().androidInfo;
       var sdkInt = androidInfo.version.sdkInt;
 
-      if (sdkInt >= 30 && prefs.getBool('android30downpath') == null) {
+      if (sdkInt >= 30 && await prefs.getBool('android30downpath') == null) {
         await prefs.setBool('android30downpath', true);
         var ext = await getExternalStorageDirectory();
         tDownloadBasePath = ext!.path;
@@ -292,6 +503,8 @@ class Settings {
       }
     } else if (Platform.isIOS) {
       tDownloadBasePath = await _getString('downloadbasepath', 'not supported');
+    } else if(Platform.isLinux){
+      tDownloadBasePath = await _getString('downloadbasepath', 'not_supported');
     }
     downloadBasePath = tDownloadBasePath!;
 
@@ -314,7 +527,7 @@ class Settings {
     searchPure = await _getBool('searchPure');
 
     // main에서 셋팅됨
-    userAppId = prefs.getString('fa_userid')!;
+    if(Platform.isAndroid || Platform.isIOS) userAppId = ((await prefs.getString('fa_userid')))!;
 
     autobackupBookmark = await _getBool('autobackupbookmark', false);
 
@@ -358,16 +571,20 @@ class Settings {
   }
 
   static Future<bool> _getBool(String key, [bool defaultValue = false]) async {
-    var nn = prefs.getBool(key);
+    var nn = await prefs.getBool(key);
     if (nn == null) {
       nn = defaultValue;
-      await prefs.setBool(key, nn);
+      if(Platform.isAndroid || Platform.isIOS){
+        await prefs.setBool(key, nn);
+      } else if(Platform.isLinux){
+
+      }
     }
     return nn;
   }
 
   static Future<int> _getInt(String key, [int defaultValue = 0]) async {
-    var nn = prefs.getInt(key);
+    var nn = await prefs.getInt(key);
     if (nn == null) {
       nn = defaultValue;
       await prefs.setInt(key, nn);
@@ -377,7 +594,7 @@ class Settings {
 
   static Future<String> _getString(String key,
       [String defaultValue = '']) async {
-    var nn = prefs.getString(key);
+    var nn = await prefs.getString(key);
     if (nn == null) {
       nn = defaultValue;
       await prefs.setString(key, nn);
@@ -387,7 +604,7 @@ class Settings {
 
   static Future<double> _getDouble(String key,
       [double defaultValue = 0.0]) async {
-    var nn = prefs.getDouble(key);
+    var nn = await prefs.getDouble(key);
     if (nn == null) {
       nn = defaultValue;
       await prefs.setDouble(key, nn);
diff --git a/lib/update/update_manager.dart b/lib/update/update_manager.dart
index e3274ec3d..c836cbae6 100644
--- a/lib/update/update_manager.dart
+++ b/lib/update/update_manager.dart
@@ -92,8 +92,8 @@ class UpdateManager {
     }).then((value) async {
       if (updateContinued) return;
 
-      final prefs = await SharedPreferences.getInstance();
-      if (prefs.getBool('usevioletserver_check') != null) return;
+      final prefs = await MultiPreferences.getInstance();
+      if ((await prefs.getBool('usevioletserver_check')) != null) return;
 
       final bb = await showYesNoDialog(
           context, Translations.of(context).trans('violetservermsg'));
diff --git a/lib/version/sync.dart b/lib/version/sync.dart
index 61bf28d54..fcaab3330 100644
--- a/lib/version/sync.dart
+++ b/lib/version/sync.dart
@@ -67,9 +67,9 @@ class SyncManager {
       var infoRaw = (await http.get(syncInfoURL(branch))).body;
       var lines = ls.convert(infoRaw);
 
-      final prefs = await SharedPreferences.getInstance();
-      var latest = prefs.getInt('synclatest');
-      var lastDB = prefs.getString('databasesync');
+      final prefs = await MultiPreferences.getInstance();
+      var latest = await prefs.getInt('synclatest');
+      var lastDB = await prefs.getString('databasesync');
 
       if (latest == null) {
         syncRequire = firstSync = true;
@@ -228,7 +228,7 @@ class SyncManager {
         });
         await dbraw.close();
 
-        final prefs = await SharedPreferences.getInstance();
+        final prefs = await MultiPreferences.getInstance();
         await prefs.setInt('synclatest', row.timestamp);
       }
 
diff --git a/linux/.gitignore b/linux/.gitignore
new file mode 100644
index 000000000..d3896c984
--- /dev/null
+++ b/linux/.gitignore
@@ -0,0 +1 @@
+flutter/ephemeral
diff --git a/linux/CMakeLists.txt b/linux/CMakeLists.txt
new file mode 100644
index 000000000..178c8489c
--- /dev/null
+++ b/linux/CMakeLists.txt
@@ -0,0 +1,145 @@
+# Project-level configuration.
+cmake_minimum_required(VERSION 3.10)
+project(runner LANGUAGES CXX)
+
+# The name of the executable created for the application. Change this to change
+# the on-disk name of your application.
+set(BINARY_NAME "violet")
+# The unique GTK application identifier for this application. See:
+# https://wiki.gnome.org/HowDoI/ChooseApplicationID
+set(APPLICATION_ID "xyz.project.violet")
+
+# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
+# versions of CMake.
+cmake_policy(SET CMP0063 NEW)
+
+# Load bundled libraries from the lib/ directory relative to the binary.
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Define build configuration options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+#
+# Be cautious about adding new options here, as plugins use this function by
+# default. In most cases, you should add new options to specific targets instead
+# of modifying this function.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+# Flutter library and tool build rules.
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Define the application target. To change its name, change BINARY_NAME above,
+# not the value here, or `flutter run` will no longer work.
+#
+# Any new source files that you add to the application should be added here.
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+
+# Apply the standard set of build settings. This can be removed for applications
+# that need different build settings.
+apply_standard_settings(${BINARY_NAME})
+
+# Add dependency libraries. Add any application-specific dependencies here.
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+
+# Run the Flutter tool portions of the build. This must not be removed.
+add_dependencies(${BINARY_NAME} flutter_assemble)
+
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+foreach(bundled_library ${PLUGIN_BUNDLED_LIBRARIES})
+  install(FILES "${bundled_library}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endforeach(bundled_library)
+
+# Copy the native assets provided by the build.dart from all packages.
+set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/linux/")
+install(DIRECTORY "${NATIVE_ASSETS_DIR}"
+   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+   COMPONENT Runtime)
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
diff --git a/linux/flutter/CMakeLists.txt b/linux/flutter/CMakeLists.txt
new file mode 100644
index 000000000..d5bd01648
--- /dev/null
+++ b/linux/flutter/CMakeLists.txt
@@ -0,0 +1,88 @@
+# This file controls Flutter-level build steps. It should not be edited.
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)
diff --git a/linux/flutter/generated_plugin_registrant.cc b/linux/flutter/generated_plugin_registrant.cc
new file mode 100644
index 000000000..7a9609beb
--- /dev/null
+++ b/linux/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,19 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+#include <flutter_js/flutter_js_plugin.h>
+#include <url_launcher_linux/url_launcher_plugin.h>
+
+void fl_register_plugins(FlPluginRegistry* registry) {
+  g_autoptr(FlPluginRegistrar) flutter_js_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "FlutterJsPlugin");
+  flutter_js_plugin_register_with_registrar(flutter_js_registrar);
+  g_autoptr(FlPluginRegistrar) url_launcher_linux_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "UrlLauncherPlugin");
+  url_launcher_plugin_register_with_registrar(url_launcher_linux_registrar);
+}
diff --git a/linux/flutter/generated_plugin_registrant.h b/linux/flutter/generated_plugin_registrant.h
new file mode 100644
index 000000000..e0f0a47bc
--- /dev/null
+++ b/linux/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter_linux/flutter_linux.h>
+
+// Registers Flutter plugins.
+void fl_register_plugins(FlPluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/linux/flutter/generated_plugins.cmake b/linux/flutter/generated_plugins.cmake
new file mode 100644
index 000000000..fb0b405e1
--- /dev/null
+++ b/linux/flutter/generated_plugins.cmake
@@ -0,0 +1,25 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+  flutter_js
+  url_launcher_linux
+)
+
+list(APPEND FLUTTER_FFI_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
+
+foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/linux plugins/${ffi_plugin})
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries})
+endforeach(ffi_plugin)
diff --git a/linux/main.cc b/linux/main.cc
new file mode 100644
index 000000000..e7c5c5437
--- /dev/null
+++ b/linux/main.cc
@@ -0,0 +1,6 @@
+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}
diff --git a/linux/my_application.cc b/linux/my_application.cc
new file mode 100644
index 000000000..c2fbe22ec
--- /dev/null
+++ b/linux/my_application.cc
@@ -0,0 +1,104 @@
+#include "my_application.h"
+
+#include <flutter_linux/flutter_linux.h>
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#include "flutter/generated_plugin_registrant.h"
+
+struct _MyApplication {
+  GtkApplication parent_instance;
+  char** dart_entrypoint_arguments;
+};
+
+G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
+
+// Implements GApplication::activate.
+static void my_application_activate(GApplication* application) {
+  MyApplication* self = MY_APPLICATION(application);
+  GtkWindow* window =
+      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
+
+  // Use a header bar when running in GNOME as this is the common style used
+  // by applications and is the setup most users will be using (e.g. Ubuntu
+  // desktop).
+  // If running on X and not using GNOME then just use a traditional title bar
+  // in case the window manager does more exotic layout, e.g. tiling.
+  // If running on Wayland assume the header bar will work (may need changing
+  // if future cases occur).
+  gboolean use_header_bar = TRUE;
+#ifdef GDK_WINDOWING_X11
+  GdkScreen* screen = gtk_window_get_screen(window);
+  if (GDK_IS_X11_SCREEN(screen)) {
+    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
+    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
+      use_header_bar = FALSE;
+    }
+  }
+#endif
+  if (use_header_bar) {
+    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+    gtk_widget_show(GTK_WIDGET(header_bar));
+    gtk_header_bar_set_title(header_bar, "violet");
+    gtk_header_bar_set_show_close_button(header_bar, TRUE);
+    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
+  } else {
+    gtk_window_set_title(window, "violet");
+  }
+
+  gtk_window_set_default_size(window, 1280, 720);
+  gtk_widget_show(GTK_WIDGET(window));
+
+  g_autoptr(FlDartProject) project = fl_dart_project_new();
+  fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
+
+  FlView* view = fl_view_new(project);
+  gtk_widget_show(GTK_WIDGET(view));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
+
+  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
+
+  gtk_widget_grab_focus(GTK_WIDGET(view));
+}
+
+// Implements GApplication::local_command_line.
+static gboolean my_application_local_command_line(GApplication* application, gchar*** arguments, int* exit_status) {
+  MyApplication* self = MY_APPLICATION(application);
+  // Strip out the first argument as it is the binary name.
+  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
+
+  g_autoptr(GError) error = nullptr;
+  if (!g_application_register(application, nullptr, &error)) {
+     g_warning("Failed to register: %s", error->message);
+     *exit_status = 1;
+     return TRUE;
+  }
+
+  g_application_activate(application);
+  *exit_status = 0;
+
+  return TRUE;
+}
+
+// Implements GObject::dispose.
+static void my_application_dispose(GObject* object) {
+  MyApplication* self = MY_APPLICATION(object);
+  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
+  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
+}
+
+static void my_application_class_init(MyApplicationClass* klass) {
+  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
+  G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
+  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
+}
+
+static void my_application_init(MyApplication* self) {}
+
+MyApplication* my_application_new() {
+  return MY_APPLICATION(g_object_new(my_application_get_type(),
+                                     "application-id", APPLICATION_ID,
+                                     "flags", G_APPLICATION_NON_UNIQUE,
+                                     nullptr));
+}
diff --git a/linux/my_application.h b/linux/my_application.h
new file mode 100644
index 000000000..72271d5e4
--- /dev/null
+++ b/linux/my_application.h
@@ -0,0 +1,18 @@
+#ifndef FLUTTER_MY_APPLICATION_H_
+#define FLUTTER_MY_APPLICATION_H_
+
+#include <gtk/gtk.h>
+
+G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION,
+                     GtkApplication)
+
+/**
+ * my_application_new:
+ *
+ * Creates a new Flutter-based application.
+ *
+ * Returns: a new #MyApplication.
+ */
+MyApplication* my_application_new();
+
+#endif  // FLUTTER_MY_APPLICATION_H_
diff --git a/preprocess-ios.py b/preprocess-ios.py
index 961247eae..8b29715ed 100644
--- a/preprocess-ios.py
+++ b/preprocess-ios.py
@@ -109,4 +109,4 @@ def create_dummy_valid(path):
             process_yaml(root + '/' +  filename)
 
 # create_dummy_valid('./lib/server/salt.dart')
-# create_dummy_valid('./lib/server/wsalt.dart')
\ No newline at end of file
+# create_dummy_valid('./lib/server/wsalt.dart')
diff --git a/preprocess-linux.py b/preprocess-linux.py
new file mode 100644
index 000000000..92d132722
--- /dev/null
+++ b/preprocess-linux.py
@@ -0,0 +1,112 @@
+# This source code is a part of Project Violet.
+# Copyright (C) 2021.violet-team. Licensed under the Apache-2.0 License.
+
+import sys
+import os
+import os.path
+import re
+
+target = 'linux'
+
+def process_dart(path):
+    f = open(path, 'r')
+    w = []
+    nl = False
+    op = False
+    for line in f.readlines():
+        if '//' in line:
+            annote = re.split(r': |, | ',line.split('//')[-1].strip())
+
+            if not annote[0].startswith('@dependent'):
+                if nl or op:
+                    nl = False
+                else:
+                    w.append(line)
+                continue
+
+            if annote[1] == target:
+                w.append(line)
+                continue
+
+            if len(annote) == 2:
+                continue
+
+            if annote[2] == '=>':
+                nl = True
+                continue
+
+            if annote[2] == '[':
+                op = True
+                continue
+
+            if annote[2] == ']':
+                op = False
+                continue
+        else:
+            if nl or op:
+                nl = False
+            else:
+                w.append(line)
+    f.close()
+    f = open(path, 'w+')
+    f.writelines(w)
+    f.close()
+
+def process_yaml(path):
+    f = open(path, 'r')
+    w = []
+    nl = False
+    op = False
+    for line in f.readlines():
+        if '#' in line:
+            annote = re.split(r': |, | ', line.split('#')[-1].strip())
+
+            if not annote[0].startswith('@dependent'):
+                if nl or op:
+                    nl = False
+                else:
+                    w.append(line)
+                continue
+
+            if annote[1] == target:
+                w.append(line)
+                continue
+
+            if len(annote) == 2:
+                continue
+
+            if annote[2] == '=>':
+                nl = True
+                continue
+
+            if annote[2] == '[':
+                op = True
+                continue
+
+            if annote[2] == ']':
+                op = False
+                continue
+        else:
+            if nl or op:
+                nl = False
+            else:
+                w.append(line)
+    f.close()
+    f = open(path, 'w+')
+    f.writelines(w)
+    f.close()
+
+def create_dummy_valid(path):
+    f = open(path, 'w')
+    f.writelines(['String getValid(foo) {return foo;}'])
+    f.close()
+
+for root, subdirs, files in os.walk('./'):
+    for filename in files:
+        if filename.endswith(".dart"): 
+            process_dart(root + '/' + filename)
+        elif filename.endswith(".yaml"):
+            process_yaml(root + '/' +  filename)
+
+# create_dummy_valid('./lib/server/salt.dart')
+# create_dummy_valid('./lib/server/wsalt.dart')
diff --git a/pubspec.lock b/pubspec.lock
index d41f33258..8260cd786 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -253,10 +253,10 @@ packages:
     dependency: "direct main"
     description:
       name: collection
-      sha256: f092b211a4319e98e5ff58223576de6c2803db36221657b46c82574721240687
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.2"
+    version: "1.18.0"
   community_charts_common:
     dependency: transitive
     description:
@@ -1083,10 +1083,10 @@ packages:
     dependency: transitive
     description:
       name: meta
-      sha256: "3c74dbf8763d36539f114c799d8a2d87343b5067e9d796ca22b5eb8437090ee3"
+      sha256: a6e590c838b18133bb482a2745ad77c5bb7715fb0451209e1a7567d416678b8e
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.1"
+    version: "1.10.0"
   mime:
     dependency: transitive
     description:
@@ -1473,42 +1473,42 @@ packages:
     dependency: transitive
     description:
       name: sqflite_common
-      sha256: "1b92f368f44b0dee2425bb861cfa17b6f6cf3961f762ff6f941d20b33355660a"
+      sha256: bb4738f15b23352822f4c42a531677e5c6f522e079461fd240ead29d8d8a54a6
       url: "https://pub.dev"
     source: hosted
-    version: "2.5.0"
+    version: "2.5.0+2"
   sqflite_common_ffi:
-    dependency: "direct dev"
+    dependency: "direct main"
     description:
       name: sqflite_common_ffi
-      sha256: "0d5cc1be2eb18400ac6701c31211d44164393aa75886093002ecdd947be04f93"
+      sha256: "873677ee78738a723d1ded4ccb23980581998d873d30ee9c331f6a81748663ff"
       url: "https://pub.dev"
     source: hosted
-    version: "2.3.0+2"
+    version: "2.3.1"
   sqlite3:
     dependency: transitive
     description:
       name: sqlite3
-      sha256: db65233e6b99e99b2548932f55a987961bc06d82a31a0665451fa0b4fff4c3fb
+      sha256: "8922805564b78eb7aa9386c10056d377a541ac7270dc6a1589176277ebb4d15d"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "2.2.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
       url: "https://pub.dev"
     source: hosted
-    version: "1.11.0"
+    version: "1.11.1"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
   stream_transform:
     dependency: transitive
     description:
@@ -1553,10 +1553,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8"
+      sha256: "5c2f730018264d276c20e4f1503fd1308dfbbae39ec8ee63c5236311ac06954b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.6.0"
+    version: "0.6.1"
   timeago:
     dependency: "direct main"
     description:
@@ -1713,10 +1713,10 @@ packages:
     dependency: transitive
     description:
       name: web
-      sha256: dc8ccd225a2005c1be616fe02951e2e342092edf968cf0844220383757ef8f10
+      sha256: afe077240a270dcfd2aafe77602b4113645af95d0ad31128cc02bce5ac5d5152
       url: "https://pub.dev"
     source: hosted
-    version: "0.1.4-beta"
+    version: "0.3.0"
   web_socket_channel:
     dependency: transitive
     description:
@@ -1798,5 +1798,5 @@ packages:
     source: hosted
     version: "3.1.2"
 sdks:
-  dart: ">=3.1.0 <4.0.0"
+  dart: ">=3.2.0 <4.0.0"
   flutter: ">=3.13.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 489db5eb4..d8f08ea8d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -124,6 +124,7 @@ dependencies:
   webview_flutter: ^3.0.0
   collection: ^1.16.0
   octo_image: ^2.0.0
+  sqflite_common_ffi: ^2.3.1
 
 dev_dependencies:
   flutter_test:
@@ -132,7 +133,6 @@ dev_dependencies:
   json_serializable: ^6.7.0
   freezed: ^2.3.5
   drift_sqflite: ^2.0.0
-  sqflite_common_ffi:
   flutter_lints: ^3.0.0
 
 # For information on the generic Dart part of this file, see the
@@ -183,6 +183,7 @@ flutter:
     - assets/p7zip/x86_64/lib7zr.so # @dependent: android
 
     - assets/webview/
+    - assets/db/
 
   # An image asset can refer to one or more resolution-specific "variants", see
   # https://flutter.dev/assets-and-images/#resolution-aware.