diff --git a/android/app/build.gradle b/android/app/build.gradle
index 76ba87c..ee4b9a9 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -32,7 +32,8 @@ if (keystorePropertiesFile.exists()) {
 }
 
 android {
-    compileSdkVersion 30
+    // compileSdkVersion 31
+    compileSdkVersion flutter.compileSdkVersion
 
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
@@ -45,7 +46,8 @@ android {
     defaultConfig {
         applicationId "com.kmac5dev.mindfulnotifier"
         minSdkVersion 21
-        targetSdkVersion 30
+        // targetSdkVersion 31
+        targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index 67f3d13..4857238 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -1,12 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.kmac5dev.mindfulnotifier">
-    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
-         calls FlutterMain.startInitialization(this); in its onCreate method.
-         In most cases you can leave this as-is, but you if you want to provide
-         additional functionality it is fine to subclass or reimplement
-         FlutterApplication and put your custom class here. -->
     <application
-        android:name="io.flutter.app.FlutterApplication"
+        android:name="${applicationName}"
         android:label="Mindful Notifier"
         android:icon="@mipmap/ic_launcher">
         <activity
@@ -24,17 +19,6 @@
               android:name="io.flutter.embedding.android.NormalTheme"
               android:resource="@style/NormalTheme"
               />
-            <!-- Displays an Android View that continues showing the launch screen
-                 Drawable until Flutter paints its first frame, then this splash
-                 screen fades out. A splash screen is useful to avoid any visual
-                 gap between the end of Android's launch screen and the painting of
-                 Flutter's first frame. -->
-            <!--
-            <meta-data
-              android:name="io.flutter.embedding.android.SplashScreenDrawable"
-              android:resource="@drawable/launch_background"
-              />
-            -->
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
diff --git a/android/app/src/main/kotlin/com/example/remindful/MainActivity.kt b/android/app/src/main/kotlin/com/kmac5dev/mindfulnofier/MainActivity.kt
similarity index 100%
rename from android/app/src/main/kotlin/com/example/remindful/MainActivity.kt
rename to android/app/src/main/kotlin/com/kmac5dev/mindfulnofier/MainActivity.kt
diff --git a/android/build.gradle b/android/build.gradle
index f05df98..714549c 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,12 +1,12 @@
 buildscript {
-    ext.kotlin_version = '1.3.50'
+    ext.kotlin_version = '1.6.10'
     repositories {
         google()
         jcenter()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.4'
+        classpath 'com.android.tools.build:gradle:4.1.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties
index 63f18a4..bc6a58a 100644
--- a/android/gradle/wrapper/gradle-wrapper.properties
+++ b/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,5 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
-distributionSha256Sum=abc10bcedb58806e8654210f96031db541bcd2d6fc3161e81cb0572d6a15e821
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
diff --git a/lib/components/datastore.dart b/lib/components/datastore.dart
index 7f695d8..8dcc88c 100644
--- a/lib/components/datastore.dart
+++ b/lib/components/datastore.dart
@@ -1,7 +1,6 @@
 import 'dart:convert';
 import 'dart:math';
 import 'package:flutter/foundation.dart';
-import 'package:hive/hive.dart';
 import 'package:hive_flutter/hive_flutter.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
@@ -250,7 +249,8 @@ abstract class ScheduleDataStoreBase {
   static const int defaultQuietHoursEndHour = 9;
   static const int defaultQuietHoursEndMinute = 0;
   static const bool defaultNotifyQuietHours = false;
-  static const String defaultReminderMessage = constants.reminderMessageDisabled;
+  static const String defaultReminderMessage =
+      constants.reminderMessageDisabled;
   static const String defaultInfoMessage = constants.infoMessageDisabled;
   static const String defaultControlMessage = '';
   static const String defaultTheme = 'Default';
diff --git a/lib/components/scheduler.dart b/lib/components/scheduler.dart
index 0f3281a..c7f90c3 100644
--- a/lib/components/scheduler.dart
+++ b/lib/components/scheduler.dart
@@ -7,6 +7,8 @@ import 'dart:ui';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:package_info_plus/package_info_plus.dart';
+import 'package:path_provider_android/path_provider_android.dart';
+import 'package:shared_preferences_android/shared_preferences_android.dart';
 
 import 'package:mindfulnotifier/components/alarmservice.dart';
 import 'package:mindfulnotifier/components/constants.dart' as constants;
@@ -78,6 +80,11 @@ class Scheduler {
   Future<void> init() async {
     logger.i("Initializing scheduler ${getCurrentIsolate()}");
 
+    // TEMPORARY: fix eof SharedPreferences and PathProvider
+    // https://github.com/flutter/flutter/issues/99155#issuecomment-1052023743:
+    // This will be replaced with 'DartPluginRegistrant.ensureInitialized()'
+    SharedPreferencesAndroid.registerWith();
+    PathProviderAndroid.registerWith();
     try {
       PackageInfo info = await PackageInfo.fromPlatform();
       Get.put(info);
@@ -85,7 +92,7 @@ class Scheduler {
       // throws during testing
     }
 
-    ds = await ScheduleDataStore.getInstance();
+    ds ??= await ScheduleDataStore.getInstance();
     Get.delete<ScheduleDataStore>();
     Get.put(ds, permanent: true);
 
@@ -191,6 +198,7 @@ class Scheduler {
   }
 
   Future<void> sendDataStoreUpdate() async {
+    ds ??= await ScheduleDataStore.getInstance();
     sendValueToUI('syncDataStore', ds.getInMemoryInstance());
   }
 
diff --git a/lib/main.dart b/lib/main.dart
index afbe1ea..baeb0e3 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,5 +1,4 @@
 import 'package:device_info_plus/device_info_plus.dart';
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:mindfulnotifier/components/utils.dart';
@@ -12,7 +11,6 @@ import 'package:mindfulnotifier/components/router.dart' as router;
 import 'package:mindfulnotifier/components/alarmservice.dart';
 import 'package:mindfulnotifier/theme/themes.dart';
 
-
 void main() async {
   // needed if you intend to initialize in the `main` function
   WidgetsFlutterBinding.ensureInitialized();
diff --git a/lib/screens/about.dart b/lib/screens/about.dart
index d0081a6..191c843 100644
--- a/lib/screens/about.dart
+++ b/lib/screens/about.dart
@@ -1,6 +1,4 @@
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
 import 'package:flutter_markdown/flutter_markdown.dart';
 import 'package:url_launcher/url_launcher.dart';
 import 'package:mindfulnotifier/components/constants.dart';
@@ -87,13 +85,9 @@ This project is licensed under the terms of the [GNU General Public License v3.0
 """;
 
 Future<void> launchInBrowser(String url) async {
-  if (await canLaunch(url)) {
-    await launch(
-      url,
-      forceSafariVC: false,
-      forceWebView: false,
-      headers: <String, String>{'my_header_key': 'my_header_value'},
-    );
+  Uri uri = Uri.parse(url);
+  if (await canLaunchUrl(uri)) {
+    await launchUrl(uri, mode: LaunchMode.platformDefault);
   } else {
     throw 'Could not launch $url';
   }
diff --git a/lib/screens/general.dart b/lib/screens/general.dart
index 84f69e1..2672115 100644
--- a/lib/screens/general.dart
+++ b/lib/screens/general.dart
@@ -2,12 +2,10 @@ import 'dart:io';
 import 'dart:convert';
 import 'dart:typed_data';
 
-import 'package:battery_optimization/battery_optimization.dart';
+import 'package:optimization_battery/optimization_battery.dart';
 import 'package:device_info_plus/device_info_plus.dart';
 import 'package:file_picker/file_picker.dart';
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
 import 'package:get/get.dart';
 import 'package:rflutter_alert/rflutter_alert.dart';
 import 'package:share_plus/share_plus.dart';
@@ -104,8 +102,7 @@ class GeneralWidgetController extends GetxController {
     InMemoryScheduleDataStore mds = Get.find();
 
     // update alarm service with new memory store
-    Get.find<MindfulNotifierWidgetController>()
-        .updatePermanentDataStore(mds);
+    Get.find<MindfulNotifierWidgetController>().updatePermanentDataStore(mds);
 
     scheduleDirty.value = false;
   }
@@ -273,7 +270,7 @@ class GeneralWidget extends StatelessWidget {
   }
 
   void _checkBatteryOptimization(var context) {
-    BatteryOptimization.isIgnoringBatteryOptimizations().then((onValue) {
+    OptimizationBattery.isIgnoringBatteryOptimizations().then((onValue) {
       if (onValue) {
         // Ignoring Battery Optimization
         utils.showInfoAlert(
@@ -295,7 +292,7 @@ class GeneralWidget extends StatelessWidget {
             buttons: [
               DialogButton(
                 onPressed: () {
-                  BatteryOptimization.openBatteryOptimizationSettings();
+                  OptimizationBattery.openBatteryOptimizationSettings();
                   Navigator.pop(context);
                 },
                 child: Text(
diff --git a/lib/screens/mindfulnotifier.dart b/lib/screens/mindfulnotifier.dart
index bffd12d..2312233 100644
--- a/lib/screens/mindfulnotifier.dart
+++ b/lib/screens/mindfulnotifier.dart
@@ -2,7 +2,6 @@ import 'dart:async';
 import 'dart:ui';
 import 'dart:isolate';
 
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:minimize_app/minimize_app.dart';
diff --git a/lib/screens/reminderview.dart b/lib/screens/reminderview.dart
index f0686cc..ff23e1b 100644
--- a/lib/screens/reminderview.dart
+++ b/lib/screens/reminderview.dart
@@ -1,9 +1,4 @@
-import 'dart:ui';
-
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
-import 'package:flutter/widgets.dart';
 import 'package:get/get.dart';
 import 'package:mindfulnotifier/components/datastore.dart';
 import 'package:dropdown_search/dropdown_search.dart';
diff --git a/lib/screens/schedulesview.dart b/lib/screens/schedulesview.dart
index c2ed7ef..c7163f8 100644
--- a/lib/screens/schedulesview.dart
+++ b/lib/screens/schedulesview.dart
@@ -1,10 +1,7 @@
-import 'dart:ui';
 import 'dart:async';
 
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-import 'package:flutter/widgets.dart';
 import 'package:get/get.dart';
 
 import 'package:mindfulnotifier/components/datastore.dart';
diff --git a/lib/screens/sound.dart b/lib/screens/sound.dart
index 172592f..bd32337 100644
--- a/lib/screens/sound.dart
+++ b/lib/screens/sound.dart
@@ -1,8 +1,6 @@
 import 'dart:io';
 
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:rflutter_alert/rflutter_alert.dart';
 import 'package:get/get.dart';
@@ -112,8 +110,7 @@ class SoundWidgetController extends GetxController {
 
   void _updateAlarmService(InMemoryScheduleDataStore mds) {
     // update alarm service with new memory store
-    Get.find<MindfulNotifierWidgetController>()
-        .updatePermanentDataStore(mds);
+    Get.find<MindfulNotifierWidgetController>().updatePermanentDataStore(mds);
   }
 }
 
diff --git a/pubspec.lock b/pubspec.lock
index b92d0e3..1bb5070 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -7,7 +7,7 @@ packages:
       name: android_alarm_manager_plus
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.5"
   args:
     dependency: transitive
     description:
@@ -21,7 +21,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.8.1"
+    version: "2.8.2"
   audio_session:
     dependency: "direct main"
     description:
@@ -29,13 +29,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.6+1"
-  battery_optimization:
-    dependency: "direct main"
-    description:
-      name: battery_optimization
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.0"
   boolean_selector:
     dependency: transitive
     description:
@@ -49,7 +42,7 @@ packages:
       name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.2.0"
   charcode:
     dependency: transitive
     description:
@@ -77,7 +70,7 @@ packages:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.1"
+    version: "3.0.2"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -91,42 +84,42 @@ packages:
       name: date_format
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "2.0.6"
   dbus:
     dependency: transitive
     description:
       name: dbus
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.5.6"
+    version: "0.7.3"
   device_info_plus:
     dependency: "direct main"
     description:
       name: device_info_plus
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.1"
+    version: "3.2.3"
   device_info_plus_linux:
     dependency: transitive
     description:
       name: device_info_plus_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   device_info_plus_macos:
     dependency: transitive
     description:
       name: device_info_plus_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.0"
+    version: "2.2.3"
   device_info_plus_platform_interface:
     dependency: transitive
     description:
       name: device_info_plus_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.1"
+    version: "2.3.0+1"
   device_info_plus_web:
     dependency: transitive
     description:
@@ -140,14 +133,14 @@ packages:
       name: device_info_plus_windows
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   dropdown_search:
     dependency: "direct main"
     description:
       name: dropdown_search
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
+    version: "3.0.1"
   equatable:
     dependency: "direct main"
     description:
@@ -182,26 +175,33 @@ packages:
       name: file_picker
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.2.1"
+    version: "4.5.1"
   flutter:
     dependency: "direct main"
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.4"
   flutter_local_notifications:
     dependency: "direct main"
     description:
       name: flutter_local_notifications
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "9.0.2"
+    version: "9.5.2"
   flutter_local_notifications_linux:
     dependency: transitive
     description:
       name: flutter_local_notifications_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.0"
+    version: "0.4.2"
   flutter_local_notifications_platform_interface:
     dependency: transitive
     description:
@@ -215,7 +215,7 @@ packages:
       name: flutter_markdown
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.6.8"
+    version: "0.6.10"
   flutter_native_timezone:
     dependency: "direct main"
     description:
@@ -229,7 +229,7 @@ packages:
       name: flutter_plugin_android_lifecycle
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "2.0.5"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -246,14 +246,14 @@ packages:
       name: get
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.3.8"
+    version: "4.6.1"
   hive:
     dependency: "direct main"
     description:
       name: hive
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "2.1.0"
   hive_flutter:
     dependency: "direct main"
     description:
@@ -288,21 +288,28 @@ packages:
       name: just_audio
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.9.16"
+    version: "0.9.21"
   just_audio_platform_interface:
     dependency: transitive
     description:
       name: just_audio_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.0"
+    version: "4.1.0"
   just_audio_web:
     dependency: transitive
     description:
       name: just_audio_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.2"
+    version: "0.4.7"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   logger:
     dependency: "direct main"
     description:
@@ -316,14 +323,21 @@ packages:
       name: markdown
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.0"
+    version: "5.0.0"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.10"
+    version: "0.12.11"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
   meta:
     dependency: transitive
     description:
@@ -337,7 +351,7 @@ packages:
       name: mime
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.1"
+    version: "1.0.2"
   minimize_app:
     dependency: "direct main"
     description:
@@ -345,20 +359,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.1"
+  optimization_battery:
+    dependency: "direct main"
+    description:
+      name: optimization_battery
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.5"
   package_info_plus:
     dependency: "direct main"
     description:
       name: package_info_plus
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
+    version: "1.4.2"
   package_info_plus_linux:
     dependency: transitive
     description:
       name: package_info_plus_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.3"
+    version: "1.0.5"
   package_info_plus_macos:
     dependency: transitive
     description:
@@ -379,14 +400,14 @@ packages:
       name: package_info_plus_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   package_info_plus_windows:
     dependency: transitive
     description:
       name: package_info_plus_windows
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   path:
     dependency: transitive
     description:
@@ -400,42 +421,49 @@ packages:
       name: path_provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.6"
+    version: "2.0.9"
+  path_provider_android:
+    dependency: "direct main"
+    description:
+      name: path_provider_android
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.13"
+  path_provider_ios:
+    dependency: transitive
+    description:
+      name: path_provider_ios
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.8"
   path_provider_linux:
     dependency: transitive
     description:
       name: path_provider_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.5"
   path_provider_macos:
     dependency: transitive
     description:
       name: path_provider_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "2.0.5"
   path_provider_platform_interface:
     dependency: transitive
     description:
       name: path_provider_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.1"
+    version: "2.0.3"
   path_provider_windows:
     dependency: transitive
     description:
       name: path_provider_windows
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
-  pedantic:
-    dependency: transitive
-    description:
-      name: pedantic
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.11.1"
+    version: "2.0.5"
   petitparser:
     dependency: transitive
     description:
@@ -449,14 +477,14 @@ packages:
       name: platform
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.2"
+    version: "3.1.0"
   plugin_platform_interface:
     dependency: transitive
     description:
       name: plugin_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "2.1.2"
   process:
     dependency: transitive
     description:
@@ -477,70 +505,84 @@ packages:
       name: rxdart
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.27.2"
+    version: "0.27.3"
   share_plus:
     dependency: "direct main"
     description:
       name: share_plus
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.4"
+    version: "4.0.4"
   share_plus_linux:
     dependency: transitive
     description:
       name: share_plus_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "3.0.0"
   share_plus_macos:
     dependency: transitive
     description:
       name: share_plus_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "3.0.0"
   share_plus_platform_interface:
     dependency: transitive
     description:
       name: share_plus_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.1"
+    version: "3.0.2"
   share_plus_web:
     dependency: transitive
     description:
       name: share_plus_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "3.0.0"
   share_plus_windows:
     dependency: transitive
     description:
       name: share_plus_windows
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "3.0.0"
   shared_preferences:
     dependency: "direct main"
     description:
       name: shared_preferences
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.8"
+    version: "2.0.13"
+  shared_preferences_android:
+    dependency: "direct main"
+    description:
+      name: shared_preferences_android
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.11"
+  shared_preferences_ios:
+    dependency: transitive
+    description:
+      name: shared_preferences_ios
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
   shared_preferences_linux:
     dependency: transitive
     description:
       name: shared_preferences_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "2.1.0"
   shared_preferences_macos:
     dependency: transitive
     description:
       name: shared_preferences_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "2.0.3"
   shared_preferences_platform_interface:
     dependency: transitive
     description:
@@ -554,14 +596,14 @@ packages:
       name: shared_preferences_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "2.0.3"
   shared_preferences_windows:
     dependency: transitive
     description:
       name: shared_preferences_windows
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "2.1.0"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -573,7 +615,7 @@ packages:
       name: sound_mode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.1"
+    version: "2.0.2"
   source_span:
     dependency: transitive
     description:
@@ -615,7 +657,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.2"
+    version: "0.4.8"
   timezone:
     dependency: transitive
     description:
@@ -636,70 +678,84 @@ packages:
       name: url_launcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.0.12"
+    version: "6.1.0"
+  url_launcher_android:
+    dependency: transitive
+    description:
+      name: url_launcher_android
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.0.16"
+  url_launcher_ios:
+    dependency: transitive
+    description:
+      name: url_launcher_ios
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.0.15"
   url_launcher_linux:
     dependency: transitive
     description:
       name: url_launcher_linux
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "3.0.0"
   url_launcher_macos:
     dependency: transitive
     description:
       name: url_launcher_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "3.0.0"
   url_launcher_platform_interface:
     dependency: transitive
     description:
       name: url_launcher_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "2.0.5"
   url_launcher_web:
     dependency: transitive
     description:
       name: url_launcher_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "2.0.9"
   url_launcher_windows:
     dependency: transitive
     description:
       name: url_launcher_windows
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "3.0.0"
   uuid:
     dependency: transitive
     description:
       name: uuid
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.5"
+    version: "3.0.6"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   win32:
     dependency: transitive
     description:
       name: win32
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.10"
+    version: "2.5.2"
   xdg_directories:
     dependency: transitive
     description:
       name: xdg_directories
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.0"
+    version: "0.2.0+1"
   xml:
     dependency: transitive
     description:
@@ -708,5 +764,5 @@ packages:
     source: hosted
     version: "5.3.1"
 sdks:
-  dart: ">=2.14.0 <3.0.0"
-  flutter: ">=2.5.0"
+  dart: ">=2.15.0 <3.0.0"
+  flutter: ">=2.10.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index b5f3650..cb4dd9c 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -21,7 +21,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 #              This number is used only to determine whether one version is more recent than another,
 #              with higher numbers indicating more recent versions
 # versionName: Customer-visible version string
-version: 1.0.23+43
+version: 1.0.23+44
 
 environment:
   # sdk: ">=2.12.0 <3.0.0"
@@ -37,41 +37,45 @@ dependencies:
 
   # https://pub.dev/packages/<package>
 
-  android_alarm_manager_plus: ^2.0.3
-  flutter_local_notifications: ^9.0.2
-  date_format: ^2.0.4
-  device_info_plus: ^3.1.1
-  rxdart: ^0.27.2
+  android_alarm_manager_plus: ^2.0.5
+  flutter_local_notifications: ^9.5.2
+  date_format: ^2.0.6
+  device_info_plus: ^3.2.3
+  rxdart: ^0.27.3
   flutter_native_timezone: ^2.0.0
-  shared_preferences: ^2.0.8
-  get: ^4.3.8
+  shared_preferences: ^2.0.13
+  # TEMPORARY: workaround for SharedPreferences in isolates (see scheduler.dart):
+  shared_preferences_android: ^2.0.11
+  get: ^4.6.1
   logger: ^1.1.0
   equatable: ^2.0.3
 
-  hive: ^2.0.4
+  hive: ^2.1.0
   hive_flutter: ^1.1.0
 
   # For audio:
-  just_audio: ^0.9.16
+  just_audio: ^0.9.21
   audio_session: ^0.1.6+1
   # audio_service: ^0.15.3
-  sound_mode: ^2.0.1
+  sound_mode: ^2.0.2
 
-
-  file_picker: ^4.2.1
-  package_info_plus: ^1.3.0
-  path_provider: ^2.0.6
-  share_plus: ^3.0.4
-  dropdown_search: ^2.0.0
+  file_picker: ^4.5.1
+  package_info_plus: ^1.4.2
+  path_provider: ^2.0.9
+  # TEMPORARY: workaround for PathProvider in isolates (see scheduler.dart):
+  path_provider_android: ^2.0.13
+  share_plus: ^4.0.4
+  dropdown_search: ^3.0.1
 
   # flutter_background_service: ^0.0.1+19
   rflutter_alert: ^2.0.4
-  flutter_markdown: ^0.6.8
-  url_launcher: ^6.0.12
-  battery_optimization: ^0.1.0
+  flutter_markdown: ^0.6.10
+  url_launcher: ^6.1.0
+  optimization_battery: ^0.0.5
   minimize_app: ^0.1.1
 
 dev_dependencies:
+  flutter_lints: ^1.0.4
   flutter_test:
     sdk: flutter