diff --git a/app/build.gradle b/app/build.gradle
index 85319bc2d..9a5e1cc8e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,17 +3,16 @@ import java.time.Instant
 plugins {
     id 'com.android.application'
     id 'kotlin-android'
-    id 'kotlin-android-extensions'
     id 'kotlin-kapt'
 }
 
 android {
-    compileSdk 31
+    compileSdk 33
 
     defaultConfig {
         applicationId 'com.github.libretube'
         minSdk 21
-        targetSdk 31
+        targetSdk 33
         versionCode 17
         versionName '0.5.0'
         multiDexEnabled true
diff --git a/app/src/main/java/com/github/libretube/activities/AboutActivity.kt b/app/src/main/java/com/github/libretube/activities/AboutActivity.kt
index e02a1edd7..f2e7a514d 100644
--- a/app/src/main/java/com/github/libretube/activities/AboutActivity.kt
+++ b/app/src/main/java/com/github/libretube/activities/AboutActivity.kt
@@ -123,6 +123,7 @@ class AboutActivity : BaseActivity() {
                 it?.readText()
             }
 
+        @Suppress("DEPRECATION")
         val licenseHtml = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
             Html.fromHtml(licenseString.toString(), 1)
         } else {
diff --git a/app/src/main/java/com/github/libretube/activities/MainActivity.kt b/app/src/main/java/com/github/libretube/activities/MainActivity.kt
index b6daa86c9..266822d7b 100644
--- a/app/src/main/java/com/github/libretube/activities/MainActivity.kt
+++ b/app/src/main/java/com/github/libretube/activities/MainActivity.kt
@@ -205,7 +205,7 @@ class MainActivity : BaseActivity() {
     /**
      * Remove the focus of the search view in the toolbar
      */
-    fun removeSearchFocus() {
+    private fun removeSearchFocus() {
         searchView.setQuery("", false)
         searchView.clearFocus()
         searchView.onActionViewCollapsed()
@@ -250,13 +250,14 @@ class MainActivity : BaseActivity() {
 
         searchItem.setOnActionExpandListener(
             object : MenuItem.OnActionExpandListener {
-                override fun onMenuItemActionExpand(p0: MenuItem?): Boolean {
+                override fun onMenuItemActionExpand(p0: MenuItem): Boolean {
                     return true
                 }
 
-                override fun onMenuItemActionCollapse(p0: MenuItem?): Boolean {
+                override fun onMenuItemActionCollapse(p0: MenuItem): Boolean {
                     val currentFragmentId = navController.currentDestination?.id
                     if (currentFragmentId == R.id.searchFragment || currentFragmentId == R.id.searchResultFragment) {
+                        @Suppress("DEPRECATION")
                         onBackPressed()
                     }
                     return true
@@ -443,6 +444,7 @@ class MainActivity : BaseActivity() {
                 }
             }
         } else if (navController.currentDestination?.id == startFragmentId) {
+            @Suppress("DEPRECATION")
             super.onBackPressed()
         } else {
             navController.popBackStack()
@@ -494,7 +496,7 @@ class MainActivity : BaseActivity() {
                 hide(WindowInsets.Type.statusBars() or WindowInsets.Type.navigationBars())
                 systemBarsBehavior = WindowInsetsController.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
             }
-        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+        } else {
             @Suppress("DEPRECATION")
             window.decorView.systemUiVisibility = (
                 View.SYSTEM_UI_FLAG_FULLSCREEN
@@ -528,7 +530,7 @@ class MainActivity : BaseActivity() {
                 show(WindowInsets.Type.statusBars() or WindowInsets.Type.navigationBars())
                 systemBarsBehavior = WindowInsetsController.BEHAVIOR_DEFAULT
             }
-        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+        } else {
             @Suppress("DEPRECATION")
             window.decorView.systemUiVisibility =
                 (View.SYSTEM_UI_FLAG_VISIBLE or View.SYSTEM_UI_FLAG_LAYOUT_STABLE)
@@ -554,7 +556,7 @@ class MainActivity : BaseActivity() {
     /**
      * show the status bar
      */
-    fun showSystemBars() {
+    private fun showSystemBars() {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
             window.insetsController?.show(WindowInsets.Type.statusBars())
         } else {
diff --git a/app/src/main/java/com/github/libretube/activities/SettingsActivity.kt b/app/src/main/java/com/github/libretube/activities/SettingsActivity.kt
index 184c69e06..b081d9c4f 100644
--- a/app/src/main/java/com/github/libretube/activities/SettingsActivity.kt
+++ b/app/src/main/java/com/github/libretube/activities/SettingsActivity.kt
@@ -31,6 +31,7 @@ class SettingsActivity : BaseActivity() {
     override fun onBackPressed() {
         when (supportFragmentManager.findFragmentById(R.id.settings)) {
             is MainSettings -> {
+                @Suppress("DEPRECATION")
                 super.onBackPressed()
                 finishAndRemoveTask()
             }
diff --git a/app/src/main/java/com/github/libretube/adapters/ChannelAdapter.kt b/app/src/main/java/com/github/libretube/adapters/ChannelAdapter.kt
index 9fdc4893c..5a8dfc391 100644
--- a/app/src/main/java/com/github/libretube/adapters/ChannelAdapter.kt
+++ b/app/src/main/java/com/github/libretube/adapters/ChannelAdapter.kt
@@ -10,9 +10,9 @@ import com.github.libretube.dialogs.VideoOptionsDialog
 import com.github.libretube.obj.StreamItem
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NavigationHelper
-import com.github.libretube.util.formatShort
-import com.github.libretube.util.setWatchProgressLength
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.formatShort
+import com.github.libretube.extensions.setWatchProgressLength
+import com.github.libretube.extensions.toID
 
 class ChannelAdapter(
     private val videoFeed: MutableList<StreamItem>,
diff --git a/app/src/main/java/com/github/libretube/adapters/CommentsAdapter.kt b/app/src/main/java/com/github/libretube/adapters/CommentsAdapter.kt
index 44e03ba82..5a8c75ac3 100644
--- a/app/src/main/java/com/github/libretube/adapters/CommentsAdapter.kt
+++ b/app/src/main/java/com/github/libretube/adapters/CommentsAdapter.kt
@@ -15,7 +15,7 @@ import com.github.libretube.obj.Comment
 import com.github.libretube.obj.CommentsPage
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NavigationHelper
-import com.github.libretube.util.formatShort
+import com.github.libretube.extensions.formatShort
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
diff --git a/app/src/main/java/com/github/libretube/adapters/LegacySubscriptionAdapter.kt b/app/src/main/java/com/github/libretube/adapters/LegacySubscriptionAdapter.kt
index b76b76c36..56917f204 100644
--- a/app/src/main/java/com/github/libretube/adapters/LegacySubscriptionAdapter.kt
+++ b/app/src/main/java/com/github/libretube/adapters/LegacySubscriptionAdapter.kt
@@ -7,7 +7,7 @@ import com.github.libretube.databinding.LegacySubscriptionChannelBinding
 import com.github.libretube.obj.Subscription
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NavigationHelper
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.toID
 
 class LegacySubscriptionAdapter(
     private val subscriptions: List<Subscription>
diff --git a/app/src/main/java/com/github/libretube/adapters/PlaylistAdapter.kt b/app/src/main/java/com/github/libretube/adapters/PlaylistAdapter.kt
index 2874843c2..05a54dfca 100644
--- a/app/src/main/java/com/github/libretube/adapters/PlaylistAdapter.kt
+++ b/app/src/main/java/com/github/libretube/adapters/PlaylistAdapter.kt
@@ -17,8 +17,8 @@ import com.github.libretube.obj.StreamItem
 import com.github.libretube.preferences.PreferenceHelper
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NavigationHelper
-import com.github.libretube.util.setWatchProgressLength
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.setWatchProgressLength
+import com.github.libretube.extensions.toID
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
diff --git a/app/src/main/java/com/github/libretube/adapters/RepliesAdapter.kt b/app/src/main/java/com/github/libretube/adapters/RepliesAdapter.kt
index e4a31b4af..4effc17d8 100644
--- a/app/src/main/java/com/github/libretube/adapters/RepliesAdapter.kt
+++ b/app/src/main/java/com/github/libretube/adapters/RepliesAdapter.kt
@@ -8,7 +8,7 @@ import com.github.libretube.databinding.RepliesRowBinding
 import com.github.libretube.obj.Comment
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NavigationHelper
-import com.github.libretube.util.formatShort
+import com.github.libretube.extensions.formatShort
 
 class RepliesAdapter(
     private val replies: MutableList<Comment>
diff --git a/app/src/main/java/com/github/libretube/adapters/SearchAdapter.kt b/app/src/main/java/com/github/libretube/adapters/SearchAdapter.kt
index 174889726..699e989ce 100644
--- a/app/src/main/java/com/github/libretube/adapters/SearchAdapter.kt
+++ b/app/src/main/java/com/github/libretube/adapters/SearchAdapter.kt
@@ -16,9 +16,9 @@ import com.github.libretube.extensions.setFormattedDuration
 import com.github.libretube.obj.SearchItem
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NavigationHelper
-import com.github.libretube.util.formatShort
-import com.github.libretube.util.setWatchProgressLength
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.formatShort
+import com.github.libretube.extensions.setWatchProgressLength
+import com.github.libretube.extensions.toID
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
diff --git a/app/src/main/java/com/github/libretube/adapters/SubscriptionChannelAdapter.kt b/app/src/main/java/com/github/libretube/adapters/SubscriptionChannelAdapter.kt
index 1357b25dd..ed52886f0 100644
--- a/app/src/main/java/com/github/libretube/adapters/SubscriptionChannelAdapter.kt
+++ b/app/src/main/java/com/github/libretube/adapters/SubscriptionChannelAdapter.kt
@@ -9,7 +9,7 @@ import com.github.libretube.databinding.ChannelSubscriptionRowBinding
 import com.github.libretube.obj.Subscription
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NavigationHelper
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.toID
 
 class SubscriptionChannelAdapter(private val subscriptions: MutableList<Subscription>) :
     RecyclerView.Adapter<SubscriptionChannelViewHolder>() {
diff --git a/app/src/main/java/com/github/libretube/adapters/TrendingAdapter.kt b/app/src/main/java/com/github/libretube/adapters/TrendingAdapter.kt
index 238d04c82..1326e1293 100644
--- a/app/src/main/java/com/github/libretube/adapters/TrendingAdapter.kt
+++ b/app/src/main/java/com/github/libretube/adapters/TrendingAdapter.kt
@@ -11,9 +11,9 @@ import com.github.libretube.extensions.setFormattedDuration
 import com.github.libretube.obj.StreamItem
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NavigationHelper
-import com.github.libretube.util.formatShort
-import com.github.libretube.util.setWatchProgressLength
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.formatShort
+import com.github.libretube.extensions.setWatchProgressLength
+import com.github.libretube.extensions.toID
 
 class TrendingAdapter(
     private val streamItems: List<StreamItem>,
diff --git a/app/src/main/java/com/github/libretube/adapters/WatchHistoryAdapter.kt b/app/src/main/java/com/github/libretube/adapters/WatchHistoryAdapter.kt
index 07fd2a0fe..8e5020994 100644
--- a/app/src/main/java/com/github/libretube/adapters/WatchHistoryAdapter.kt
+++ b/app/src/main/java/com/github/libretube/adapters/WatchHistoryAdapter.kt
@@ -11,7 +11,7 @@ import com.github.libretube.dialogs.VideoOptionsDialog
 import com.github.libretube.extensions.setFormattedDuration
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NavigationHelper
-import com.github.libretube.util.setWatchProgressLength
+import com.github.libretube.extensions.setWatchProgressLength
 
 class WatchHistoryAdapter(
     private val watchHistory: MutableList<WatchHistoryItem>,
diff --git a/app/src/main/java/com/github/libretube/api/ResettableLazy.kt b/app/src/main/java/com/github/libretube/api/ResettableLazy.kt
index 129e27de6..856d64dc3 100644
--- a/app/src/main/java/com/github/libretube/api/ResettableLazy.kt
+++ b/app/src/main/java/com/github/libretube/api/ResettableLazy.kt
@@ -1,4 +1,4 @@
-package com.github.libretube.util
+package com.github.libretube.api
 
 import java.util.*
 import kotlin.reflect.KProperty
@@ -47,7 +47,7 @@ class ResettableLazy<PROPTYPE>(val manager: ResettableLazyManager, val init: ()
 }
 
 fun <PROPTYPE> resettableLazy(manager: ResettableLazyManager, init: () -> PROPTYPE):
-    ResettableLazy<PROPTYPE> {
+        ResettableLazy<PROPTYPE> {
     return ResettableLazy(manager, init)
 }
 
diff --git a/app/src/main/java/com/github/libretube/api/RetrofitInstance.kt b/app/src/main/java/com/github/libretube/api/RetrofitInstance.kt
index 012051636..350accbab 100644
--- a/app/src/main/java/com/github/libretube/api/RetrofitInstance.kt
+++ b/app/src/main/java/com/github/libretube/api/RetrofitInstance.kt
@@ -1,7 +1,5 @@
 package com.github.libretube.api
 
-import com.github.libretube.util.resettableLazy
-import com.github.libretube.util.resettableManager
 import retrofit2.Retrofit
 import retrofit2.converter.jackson.JacksonConverterFactory
 
diff --git a/app/src/main/java/com/github/libretube/db/DatabaseHelper.kt b/app/src/main/java/com/github/libretube/db/DatabaseHelper.kt
index 0c162dc3a..ddd9fcc96 100644
--- a/app/src/main/java/com/github/libretube/db/DatabaseHelper.kt
+++ b/app/src/main/java/com/github/libretube/db/DatabaseHelper.kt
@@ -6,7 +6,7 @@ import com.github.libretube.db.obj.WatchPosition
 import com.github.libretube.obj.Streams
 import com.github.libretube.preferences.PreferenceHelper
 import com.github.libretube.preferences.PreferenceKeys
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.toID
 
 object DatabaseHelper {
     fun addToWatchHistory(videoId: String, streams: Streams) {
diff --git a/app/src/main/java/com/github/libretube/dialogs/PlaylistOptionsDialog.kt b/app/src/main/java/com/github/libretube/dialogs/PlaylistOptionsDialog.kt
index 644f064ea..d89a88c46 100644
--- a/app/src/main/java/com/github/libretube/dialogs/PlaylistOptionsDialog.kt
+++ b/app/src/main/java/com/github/libretube/dialogs/PlaylistOptionsDialog.kt
@@ -12,7 +12,7 @@ import com.github.libretube.extensions.TAG
 import com.github.libretube.obj.PlaylistId
 import com.github.libretube.preferences.PreferenceHelper
 import com.github.libretube.util.BackgroundHelper
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.toID
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
diff --git a/app/src/main/java/com/github/libretube/extensions/FormatShort.kt b/app/src/main/java/com/github/libretube/extensions/FormatShort.kt
index 5de54163d..f0751db56 100644
--- a/app/src/main/java/com/github/libretube/extensions/FormatShort.kt
+++ b/app/src/main/java/com/github/libretube/extensions/FormatShort.kt
@@ -1,4 +1,4 @@
-package com.github.libretube.util
+package com.github.libretube.extensions
 
 import java.math.BigDecimal
 import java.math.RoundingMode
diff --git a/app/src/main/java/com/github/libretube/extensions/HideKeyboard.kt b/app/src/main/java/com/github/libretube/extensions/HideKeyboard.kt
index de99f682d..f46ba492c 100644
--- a/app/src/main/java/com/github/libretube/extensions/HideKeyboard.kt
+++ b/app/src/main/java/com/github/libretube/extensions/HideKeyboard.kt
@@ -1,4 +1,4 @@
-package com.github.libretube.util
+package com.github.libretube.extensions
 
 import android.app.Activity
 import android.content.Context
diff --git a/app/src/main/java/com/github/libretube/extensions/SetWatchProgressLength.kt b/app/src/main/java/com/github/libretube/extensions/SetWatchProgressLength.kt
index ed8fa85bf..e53ed4339 100644
--- a/app/src/main/java/com/github/libretube/extensions/SetWatchProgressLength.kt
+++ b/app/src/main/java/com/github/libretube/extensions/SetWatchProgressLength.kt
@@ -1,4 +1,4 @@
-package com.github.libretube.util
+package com.github.libretube.extensions
 
 import android.view.View
 import android.view.ViewTreeObserver
diff --git a/app/src/main/java/com/github/libretube/extensions/ToID.kt b/app/src/main/java/com/github/libretube/extensions/ToID.kt
index 43ff8420d..9c6606c57 100644
--- a/app/src/main/java/com/github/libretube/extensions/ToID.kt
+++ b/app/src/main/java/com/github/libretube/extensions/ToID.kt
@@ -1,4 +1,4 @@
-package com.github.libretube.util
+package com.github.libretube.extensions
 
 /**
  * format a Piped route to an ID
diff --git a/app/src/main/java/com/github/libretube/fragments/ChannelFragment.kt b/app/src/main/java/com/github/libretube/fragments/ChannelFragment.kt
index c23814656..2881faeb5 100644
--- a/app/src/main/java/com/github/libretube/fragments/ChannelFragment.kt
+++ b/app/src/main/java/com/github/libretube/fragments/ChannelFragment.kt
@@ -15,8 +15,8 @@ import com.github.libretube.databinding.FragmentChannelBinding
 import com.github.libretube.extensions.BaseFragment
 import com.github.libretube.extensions.TAG
 import com.github.libretube.util.ImageHelper
-import com.github.libretube.util.formatShort
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.formatShort
+import com.github.libretube.extensions.toID
 import retrofit2.HttpException
 import java.io.IOException
 
diff --git a/app/src/main/java/com/github/libretube/fragments/HomeFragment.kt b/app/src/main/java/com/github/libretube/fragments/HomeFragment.kt
index c9923c6bc..6312f9dbe 100644
--- a/app/src/main/java/com/github/libretube/fragments/HomeFragment.kt
+++ b/app/src/main/java/com/github/libretube/fragments/HomeFragment.kt
@@ -46,7 +46,7 @@ class HomeFragment : BaseFragment() {
             resources.getInteger(R.integer.grid_items).toString()
         )
 
-        val regionPref = PreferenceHelper.getString(PreferenceKeys.REGION, "sys")!!
+        val regionPref = PreferenceHelper.getString(PreferenceKeys.REGION, "sys")
 
         // get the system default country if auto region selected
         region = if (regionPref == "sys") {
diff --git a/app/src/main/java/com/github/libretube/fragments/PlayerFragment.kt b/app/src/main/java/com/github/libretube/fragments/PlayerFragment.kt
index d277719ca..6de90ce29 100644
--- a/app/src/main/java/com/github/libretube/fragments/PlayerFragment.kt
+++ b/app/src/main/java/com/github/libretube/fragments/PlayerFragment.kt
@@ -72,9 +72,9 @@ import com.github.libretube.util.BackgroundHelper
 import com.github.libretube.util.ImageHelper
 import com.github.libretube.util.NowPlayingNotification
 import com.github.libretube.util.PlayerHelper
-import com.github.libretube.util.formatShort
-import com.github.libretube.util.hideKeyboard
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.formatShort
+import com.github.libretube.extensions.hideKeyboard
+import com.github.libretube.extensions.toID
 import com.github.libretube.views.PlayerOptionsBottomSheet
 import com.google.android.exoplayer2.C
 import com.google.android.exoplayer2.DefaultLoadControl
diff --git a/app/src/main/java/com/github/libretube/fragments/PlaylistFragment.kt b/app/src/main/java/com/github/libretube/fragments/PlaylistFragment.kt
index 6c310798c..fc7fcc63c 100644
--- a/app/src/main/java/com/github/libretube/fragments/PlaylistFragment.kt
+++ b/app/src/main/java/com/github/libretube/fragments/PlaylistFragment.kt
@@ -16,7 +16,7 @@ import com.github.libretube.databinding.FragmentPlaylistBinding
 import com.github.libretube.dialogs.PlaylistOptionsDialog
 import com.github.libretube.extensions.BaseFragment
 import com.github.libretube.extensions.TAG
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.toID
 import retrofit2.HttpException
 import java.io.IOException
 
diff --git a/app/src/main/java/com/github/libretube/fragments/SearchFragment.kt b/app/src/main/java/com/github/libretube/fragments/SearchFragment.kt
index 40ec66cb5..3c65c9e9b 100644
--- a/app/src/main/java/com/github/libretube/fragments/SearchFragment.kt
+++ b/app/src/main/java/com/github/libretube/fragments/SearchFragment.kt
@@ -20,11 +20,10 @@ import com.github.libretube.extensions.BaseFragment
 import com.github.libretube.extensions.TAG
 import com.github.libretube.extensions.await
 import com.github.libretube.models.SearchViewModel
-import kotlinx.android.synthetic.main.activity_main.toolbar
 import retrofit2.HttpException
 import java.io.IOException
 
-class SearchFragment() : BaseFragment() {
+class SearchFragment : BaseFragment() {
     private lateinit var binding: FragmentSearchBinding
     private val viewModel: SearchViewModel by activityViewModels()
 
@@ -117,7 +116,7 @@ class SearchFragment() : BaseFragment() {
         if (findNavController().currentDestination?.id != R.id.searchResultFragment) {
             // remove the search focus
             (activity as MainActivity)
-                .toolbar.menu
+                .binding.toolbar.menu
                 .findItem(R.id.action_search).collapseActionView()
         }
         super.onStop()
diff --git a/app/src/main/java/com/github/libretube/fragments/SearchResultFragment.kt b/app/src/main/java/com/github/libretube/fragments/SearchResultFragment.kt
index 08bc72e09..1ee58b55b 100644
--- a/app/src/main/java/com/github/libretube/fragments/SearchResultFragment.kt
+++ b/app/src/main/java/com/github/libretube/fragments/SearchResultFragment.kt
@@ -17,10 +17,9 @@ import com.github.libretube.db.DatabaseHelper
 import com.github.libretube.db.obj.SearchHistoryItem
 import com.github.libretube.extensions.BaseFragment
 import com.github.libretube.extensions.TAG
+import com.github.libretube.extensions.hideKeyboard
 import com.github.libretube.preferences.PreferenceHelper
 import com.github.libretube.preferences.PreferenceKeys
-import com.github.libretube.util.hideKeyboard
-import kotlinx.android.synthetic.main.activity_main.toolbar
 import retrofit2.HttpException
 import java.io.IOException
 
@@ -149,7 +148,7 @@ class SearchResultFragment : BaseFragment() {
         if (findNavController().currentDestination?.id != R.id.searchFragment) {
             // remove the search focus
             (activity as MainActivity)
-                .toolbar.menu
+                .binding.toolbar.menu
                 .findItem(R.id.action_search).collapseActionView()
         }
         super.onStop()
diff --git a/app/src/main/java/com/github/libretube/models/SubscriptionsViewModel.kt b/app/src/main/java/com/github/libretube/models/SubscriptionsViewModel.kt
index 44fedd4fb..5e01bad17 100644
--- a/app/src/main/java/com/github/libretube/models/SubscriptionsViewModel.kt
+++ b/app/src/main/java/com/github/libretube/models/SubscriptionsViewModel.kt
@@ -9,7 +9,7 @@ import com.github.libretube.extensions.TAG
 import com.github.libretube.obj.StreamItem
 import com.github.libretube.obj.Subscription
 import com.github.libretube.preferences.PreferenceHelper
-import com.github.libretube.util.toID
+import com.github.libretube.extensions.toID
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
diff --git a/app/src/main/java/com/github/libretube/preferences/AdvancedSettings.kt b/app/src/main/java/com/github/libretube/preferences/AdvancedSettings.kt
index 764de788c..c5adbfe2a 100644
--- a/app/src/main/java/com/github/libretube/preferences/AdvancedSettings.kt
+++ b/app/src/main/java/com/github/libretube/preferences/AdvancedSettings.kt
@@ -4,6 +4,7 @@ import android.net.Uri
 import android.os.Bundle
 import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.activity.result.contract.ActivityResultContracts.CreateDocument
 import androidx.preference.ListPreference
 import androidx.preference.Preference
 import com.github.libretube.R
@@ -29,7 +30,7 @@ class AdvancedSettings : MaterialPreferenceFragment() {
                 BackupHelper(requireContext()).restoreSharedPreferences(uri)
             }
         createFile = registerForActivityResult(
-            ActivityResultContracts.CreateDocument()
+            CreateDocument("application/json")
         ) { uri: Uri? ->
             BackupHelper(requireContext()).backupSharedPreferences(uri)
         }
diff --git a/app/src/main/java/com/github/libretube/preferences/InstanceSettings.kt b/app/src/main/java/com/github/libretube/preferences/InstanceSettings.kt
index e2bdfc5ab..15b966bf2 100644
--- a/app/src/main/java/com/github/libretube/preferences/InstanceSettings.kt
+++ b/app/src/main/java/com/github/libretube/preferences/InstanceSettings.kt
@@ -5,6 +5,7 @@ import android.os.Bundle
 import android.widget.Toast
 import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.activity.result.contract.ActivityResultContracts.CreateDocument
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.lifecycleScope
 import androidx.preference.ListPreference
@@ -40,7 +41,7 @@ class InstanceSettings : MaterialPreferenceFragment() {
                 ImportHelper(requireActivity()).importSubscriptions(uri)
             }
         createFile = registerForActivityResult(
-            ActivityResultContracts.CreateDocument()
+            CreateDocument("application/json")
         ) { uri: Uri? ->
             ImportHelper(requireActivity()).exportSubscriptions(uri)
         }
diff --git a/app/src/main/java/com/github/libretube/services/BackgroundMode.kt b/app/src/main/java/com/github/libretube/services/BackgroundMode.kt
index 899576dbe..0806ee2dc 100644
--- a/app/src/main/java/com/github/libretube/services/BackgroundMode.kt
+++ b/app/src/main/java/com/github/libretube/services/BackgroundMode.kt
@@ -16,6 +16,7 @@ import com.github.libretube.Globals
 import com.github.libretube.PLAYER_NOTIFICATION_ID
 import com.github.libretube.R
 import com.github.libretube.api.RetrofitInstance
+import com.github.libretube.extensions.toID
 import com.github.libretube.obj.Segment
 import com.github.libretube.obj.Segments
 import com.github.libretube.obj.Streams
@@ -24,7 +25,6 @@ import com.github.libretube.preferences.PreferenceKeys
 import com.github.libretube.util.AutoPlayHelper
 import com.github.libretube.util.NowPlayingNotification
 import com.github.libretube.util.PlayerHelper
-import com.github.libretube.util.toID
 import com.google.android.exoplayer2.C
 import com.google.android.exoplayer2.ExoPlayer
 import com.google.android.exoplayer2.MediaItem
@@ -130,8 +130,7 @@ class BackgroundMode : Service() {
             // play the audio in the background
             playAudio(videoId, position)
         } catch (e: Exception) {
-            stopForeground(true)
-            stopSelf()
+            onDestroy()
         }
         return super.onStartCommand(intent, flags, startId)
     }
@@ -209,6 +208,8 @@ class BackgroundMode : Service() {
                     Player.STATE_IDLE -> {
                         onDestroy()
                     }
+                    Player.STATE_BUFFERING -> {}
+                    Player.STATE_READY -> {}
                 }
             }
         })
@@ -309,7 +310,12 @@ class BackgroundMode : Service() {
     override fun onDestroy() {
         // called when the user pressed stop in the notification
         // stop the service from being in the foreground and remove the notification
-        stopForeground(true)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            stopForeground(STOP_FOREGROUND_REMOVE)
+        } else {
+            @Suppress("DEPRECATION")
+            stopForeground(true)
+        }
         // destroy the service
         stopSelf()
         if (this::nowPlayingNotification.isInitialized) nowPlayingNotification.destroy()
diff --git a/app/src/main/java/com/github/libretube/util/AutoPlayHelper.kt b/app/src/main/java/com/github/libretube/util/AutoPlayHelper.kt
index 76e8c704f..cfd804cb6 100644
--- a/app/src/main/java/com/github/libretube/util/AutoPlayHelper.kt
+++ b/app/src/main/java/com/github/libretube/util/AutoPlayHelper.kt
@@ -2,6 +2,7 @@ package com.github.libretube.util
 
 import com.github.libretube.Globals
 import com.github.libretube.api.RetrofitInstance
+import com.github.libretube.extensions.toID
 import com.github.libretube.obj.StreamItem
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
diff --git a/app/src/main/java/com/github/libretube/util/LocaleHelper.kt b/app/src/main/java/com/github/libretube/util/LocaleHelper.kt
index 0b294e1e7..f0defb1e5 100644
--- a/app/src/main/java/com/github/libretube/util/LocaleHelper.kt
+++ b/app/src/main/java/com/github/libretube/util/LocaleHelper.kt
@@ -13,7 +13,7 @@ object LocaleHelper {
         val languageName = PreferenceHelper.getString(PreferenceKeys.LANGUAGE, "sys")
         if (languageName == "sys") {
             updateLocaleConf(context, Locale.getDefault())
-        } else if (languageName?.contains("-") == true) {
+        } else if (languageName.contains("-") == true) {
             val languageParts = languageName.split("-")
             val locale = Locale(
                 languageParts[0],
diff --git a/app/src/main/java/com/github/libretube/util/NavigationHelper.kt b/app/src/main/java/com/github/libretube/util/NavigationHelper.kt
index 219aa3dac..54c7cb72d 100644
--- a/app/src/main/java/com/github/libretube/util/NavigationHelper.kt
+++ b/app/src/main/java/com/github/libretube/util/NavigationHelper.kt
@@ -7,6 +7,7 @@ import androidx.constraintlayout.motion.widget.MotionLayout
 import androidx.core.os.bundleOf
 import com.github.libretube.R
 import com.github.libretube.activities.MainActivity
+import com.github.libretube.extensions.toID
 import com.github.libretube.fragments.PlayerFragment
 
 object NavigationHelper {
diff --git a/app/src/main/java/com/github/libretube/util/NotificationHelper.kt b/app/src/main/java/com/github/libretube/util/NotificationHelper.kt
index ec960c64b..bda483a0d 100644
--- a/app/src/main/java/com/github/libretube/util/NotificationHelper.kt
+++ b/app/src/main/java/com/github/libretube/util/NotificationHelper.kt
@@ -17,6 +17,7 @@ import com.github.libretube.R
 import com.github.libretube.activities.MainActivity
 import com.github.libretube.api.RetrofitInstance
 import com.github.libretube.api.SubscriptionHelper
+import com.github.libretube.extensions.toID
 import com.github.libretube.preferences.PreferenceHelper
 import com.github.libretube.preferences.PreferenceKeys
 import kotlinx.coroutines.async
diff --git a/app/src/main/java/com/github/libretube/views/CustomSwipeToRefresh.kt b/app/src/main/java/com/github/libretube/views/CustomSwipeToRefresh.kt
index 87ee39d51..96476579c 100644
--- a/app/src/main/java/com/github/libretube/views/CustomSwipeToRefresh.kt
+++ b/app/src/main/java/com/github/libretube/views/CustomSwipeToRefresh.kt
@@ -26,6 +26,6 @@ class CustomSwipeToRefresh(context: Context?, attrs: AttributeSet?) :
     }
 
     init {
-        mTouchSlop = ViewConfiguration.get(context).scaledTouchSlop
+        mTouchSlop = ViewConfiguration.get(this.context).scaledTouchSlop
     }
 }
diff --git a/app/src/main/java/com/github/libretube/views/SingleViewTouchableMotionLayout.kt b/app/src/main/java/com/github/libretube/views/SingleViewTouchableMotionLayout.kt
index a9863d535..36f889145 100644
--- a/app/src/main/java/com/github/libretube/views/SingleViewTouchableMotionLayout.kt
+++ b/app/src/main/java/com/github/libretube/views/SingleViewTouchableMotionLayout.kt
@@ -1,5 +1,6 @@
 package com.github.libretube.views
 
+import android.annotation.SuppressLint
 import android.content.Context
 import android.graphics.Rect
 import android.util.AttributeSet
@@ -89,13 +90,14 @@ class SingleViewTouchableMotionLayout(context: Context, attributeSet: AttributeS
     private val gestureDetector = GestureDetector(
         context,
         object : GestureDetector.SimpleOnGestureListener() {
-            override fun onSingleTapConfirmed(e: MotionEvent?): Boolean {
+            override fun onSingleTapConfirmed(e: MotionEvent): Boolean {
                 transitionToEnd()
                 return false
             }
         }
     )
 
+    @SuppressLint("ClickableViewAccessibility")
     override fun onTouchEvent(event: MotionEvent): Boolean {
         // gestureDetector.onTouchEvent(event)
         when (event.actionMasked) {
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
index 6c7bd4e4a..bbcc85210 100644
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -2,5 +2,6 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/ic_launcher_background" />
     <foreground android:drawable="@mipmap/ic_launcher_foreground" />
+    <!--suppress AndroidElementNotAllowed -->
     <monochrome android:drawable="@drawable/ic_launcher_monochrome" />
 </adaptive-icon>
\ No newline at end of file
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
index 6c7bd4e4a..bbcc85210 100644
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -2,5 +2,6 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/ic_launcher_background" />
     <foreground android:drawable="@mipmap/ic_launcher_foreground" />
+    <!--suppress AndroidElementNotAllowed -->
     <monochrome android:drawable="@drawable/ic_launcher_monochrome" />
 </adaptive-icon>
\ No newline at end of file