diff --git a/filcnaplo/lib/api/login.dart b/filcnaplo/lib/api/login.dart
index bf967cca..2e565eaf 100644
--- a/filcnaplo/lib/api/login.dart
+++ b/filcnaplo/lib/api/login.dart
@@ -1,4 +1,4 @@
-// ignore_for_file: avoid_print
+// ignore_for_file: avoid_print, use_build_context_synchronously
 
 import 'package:filcnaplo/utils/jwt.dart';
 import 'package:filcnaplo_kreta_api/providers/absence_provider.dart';
diff --git a/filcnaplo/lib/api/providers/database_provider.dart b/filcnaplo/lib/api/providers/database_provider.dart
index 7ed82672..1b4edcfe 100644
--- a/filcnaplo/lib/api/providers/database_provider.dart
+++ b/filcnaplo/lib/api/providers/database_provider.dart
@@ -3,6 +3,7 @@ import 'dart:io';
 import 'package:filcnaplo/database/query.dart';
 import 'package:filcnaplo/database/store.dart';
 import 'package:sqflite/sqflite.dart';
+// ignore: depend_on_referenced_packages
 import 'package:sqflite_common_ffi/sqflite_ffi.dart';
 
 class DatabaseProvider {
diff --git a/filcnaplo/lib/api/providers/news_provider.dart b/filcnaplo/lib/api/providers/news_provider.dart
index 679f49ad..e0636b66 100644
--- a/filcnaplo/lib/api/providers/news_provider.dart
+++ b/filcnaplo/lib/api/providers/news_provider.dart
@@ -1,3 +1,5 @@
+// ignore_for_file: use_build_context_synchronously
+
 import 'dart:math';
 
 import 'package:filcnaplo/api/client.dart';
diff --git a/filcnaplo/lib/api/providers/sync.dart b/filcnaplo/lib/api/providers/sync.dart
index fb02d58e..a62f99be 100644
--- a/filcnaplo/lib/api/providers/sync.dart
+++ b/filcnaplo/lib/api/providers/sync.dart
@@ -1,3 +1,5 @@
+// ignore_for_file: use_build_context_synchronously
+
 import 'package:filcnaplo/api/providers/database_provider.dart';
 import 'package:filcnaplo/api/providers/status_provider.dart';
 import 'package:filcnaplo/api/providers/user_provider.dart';
@@ -33,24 +35,24 @@ Future<void> syncAll(BuildContext context) {
   List<Future<void>> tasks = [];
   int taski = 0;
 
-  Future<void> _syncStatus(Future<void> future) async {
+  Future<void> syncStatus(Future<void> future) async {
     await future.onError((error, stackTrace) => null);
     taski++;
     statusProvider.triggerSync(current: taski, max: tasks.length);
   }
 
   tasks = [
-    _syncStatus(Provider.of<GradeProvider>(context, listen: false).fetch()),
-    _syncStatus(Provider.of<TimetableProvider>(context, listen: false).fetch(week: Week.current())),
-    _syncStatus(Provider.of<ExamProvider>(context, listen: false).fetch()),
-    _syncStatus(Provider.of<HomeworkProvider>(context, listen: false).fetch(from: DateTime.now().subtract(const Duration(days: 30)))),
-    _syncStatus(Provider.of<MessageProvider>(context, listen: false).fetchAll()),
-    _syncStatus(Provider.of<NoteProvider>(context, listen: false).fetch()),
-    _syncStatus(Provider.of<EventProvider>(context, listen: false).fetch()),
-    _syncStatus(Provider.of<AbsenceProvider>(context, listen: false).fetch()),
+    syncStatus(Provider.of<GradeProvider>(context, listen: false).fetch()),
+    syncStatus(Provider.of<TimetableProvider>(context, listen: false).fetch(week: Week.current())),
+    syncStatus(Provider.of<ExamProvider>(context, listen: false).fetch()),
+    syncStatus(Provider.of<HomeworkProvider>(context, listen: false).fetch(from: DateTime.now().subtract(const Duration(days: 30)))),
+    syncStatus(Provider.of<MessageProvider>(context, listen: false).fetchAll()),
+    syncStatus(Provider.of<NoteProvider>(context, listen: false).fetch()),
+    syncStatus(Provider.of<EventProvider>(context, listen: false).fetch()),
+    syncStatus(Provider.of<AbsenceProvider>(context, listen: false).fetch()),
 
     // Sync student
-    _syncStatus(() async {
+    syncStatus(() async {
       if (user.user == null) return;
       Map? studentJson = await Provider.of<KretaClient>(context, listen: false).getAPI(KretaAPI.student(user.instituteCode!));
       if (studentJson == null) return;
diff --git a/filcnaplo/lib/database/init.dart b/filcnaplo/lib/database/init.dart
index b16c0fdd..37ee7e33 100644
--- a/filcnaplo/lib/database/init.dart
+++ b/filcnaplo/lib/database/init.dart
@@ -5,6 +5,7 @@ import 'dart:io';
 import 'package:filcnaplo/database/struct.dart';
 import 'package:filcnaplo/models/settings.dart';
 import 'package:sqflite/sqflite.dart';
+// ignore: depend_on_referenced_packages
 import 'package:sqflite_common_ffi/sqflite_ffi.dart';
 
 const settingsDB = DatabaseStruct("settings", {
diff --git a/filcnaplo/lib/database/query.dart b/filcnaplo/lib/database/query.dart
index b5de9401..bd753b76 100644
--- a/filcnaplo/lib/database/query.dart
+++ b/filcnaplo/lib/database/query.dart
@@ -1,6 +1,7 @@
 import 'dart:convert';
 import 'package:filcnaplo/models/subject_lesson_count.dart';
 import 'package:filcnaplo/models/user.dart';
+// ignore: depend_on_referenced_packages
 import 'package:sqflite_common/sqlite_api.dart';
 
 // Models
diff --git a/filcnaplo/lib/database/store.dart b/filcnaplo/lib/database/store.dart
index c442909e..7e024dd7 100644
--- a/filcnaplo/lib/database/store.dart
+++ b/filcnaplo/lib/database/store.dart
@@ -1,5 +1,6 @@
 import 'dart:convert';
 import 'package:filcnaplo/models/subject_lesson_count.dart';
+// ignore: depend_on_referenced_packages
 import 'package:sqflite_common/sqlite_api.dart';
 
 // Models
diff --git a/filcnaplo/lib/helpers/attachment_helper.dart b/filcnaplo/lib/helpers/attachment_helper.dart
index 2500fcac..5d8f3424 100644
--- a/filcnaplo/lib/helpers/attachment_helper.dart
+++ b/filcnaplo/lib/helpers/attachment_helper.dart
@@ -1,3 +1,5 @@
+// ignore_for_file: use_build_context_synchronously
+
 import 'dart:io';
 import 'dart:typed_data';
 
diff --git a/filcnaplo/pubspec.yaml b/filcnaplo/pubspec.yaml
index e5d56918..2023c86e 100644
--- a/filcnaplo/pubspec.yaml
+++ b/filcnaplo/pubspec.yaml
@@ -40,6 +40,7 @@ dependencies:
   implicitly_animated_reorderable_list: ^0.4.2
   dynamic_color: ^1.2.2
   material_color_utilities: ^0.1.3
+  crypto: ^3.0.2
 
 dev_dependencies:
   flutter_test: