diff --git a/build.gradle b/build.gradle
index 4c8edca..8427e50 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,12 +1,12 @@
 buildscript {
   ext.versions = [
-    android: '3.4.1',
-    kotlin: '1.3.72'
+    android: '7.0.2',
+    kotlin: '1.5.30'
   ]
 
   repositories {
+    mavenCentral()
     google()
-    jcenter()
   }
 
   dependencies {
@@ -19,14 +19,13 @@ apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 
 android {
-  compileSdkVersion 29
-  buildToolsVersion '29.0.3'
+  compileSdkVersion 31
 
   defaultConfig {
     archivesBaseName = 'foxy-droid'
     applicationId 'nya.kitsunyan.foxydroid'
     minSdkVersion 21
-    targetSdkVersion 29
+    targetSdkVersion 31
     versionCode 4
     versionName '1.3'
 
@@ -111,18 +110,21 @@ android {
 }
 
 repositories {
+  mavenCentral()
   google()
-  jcenter()
+  maven { url 'https://jitpack.io' }
 }
 
 dependencies {
-  implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk7:' + versions.kotlin
-  implementation 'androidx.fragment:fragment:1.2.5'
+  implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:' + versions.kotlin
+  implementation 'androidx.fragment:fragment-ktx:1.3.6'
   implementation 'androidx.viewpager2:viewpager2:1.0.0'
   implementation 'androidx.vectordrawable:vectordrawable:1.1.0'
-  implementation 'com.squareup.okhttp3:okhttp:4.7.2'
-  implementation 'io.reactivex.rxjava3:rxjava:3.0.4'
+  implementation 'com.squareup.okhttp3:okhttp:5.0.0-alpha.2'
+  implementation 'io.reactivex.rxjava3:rxjava:3.1.1'
   implementation 'io.reactivex.rxjava3:rxandroid:3.0.0'
-  implementation 'com.fasterxml.jackson.core:jackson-core:2.11.0'
-  implementation 'com.squareup.picasso:picasso:2.71828'
+  implementation 'io.reactivex.rxjava3:rxkotlin:3.0.1'
+  implementation 'com.fasterxml.jackson.core:jackson-core:2.12.5'
+  implementation 'com.squareup.picasso:picasso:2.8'
+  implementation 'com.github.topjohnwu.libsu:core:3.1.2'
 }
diff --git a/gradle.properties b/gradle.properties
index 5bac8ac..e5635fe 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1 +1,4 @@
 android.useAndroidX=true
+android.enableJetifier=true
+org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+org.gradle.parallel=true
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 558870d..892ac8c 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
+#Wed Sep 15 23:07:46 CEST 2021
 distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-bin.zip
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
diff --git a/src/main/AndroidManifest.xml b/src/main/AndroidManifest.xml
index 11237ad..cdf1c4d 100644
--- a/src/main/AndroidManifest.xml
+++ b/src/main/AndroidManifest.xml
@@ -9,6 +9,9 @@
   <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
   <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
   <uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES" />
+  <uses-permission
+      android:name="android.permission.QUERY_ALL_PACKAGES"
+      tools:ignore="QueryAllPackagesPermission" />
 
   <application
     android:name=".MainApplication"
@@ -20,7 +23,8 @@
     tools:ignore="GoogleAppIndexingWarning">
 
     <receiver
-      android:name=".MainApplication$BootReceiver">
+      android:name=".MainApplication$BootReceiver"
+      android:exported="false">
 
       <intent-filter>
         <action android:name="android.intent.action.BOOT_COMPLETED" />
@@ -31,7 +35,8 @@
     <activity
       android:name=".MainActivity"
       android:launchMode="singleTask"
-      android:windowSoftInputMode="adjustResize">
+      android:windowSoftInputMode="adjustResize"
+      android:exported="true">
 
       <intent-filter>
         <action android:name="android.intent.action.MAIN" />
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/MainApplication.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/MainApplication.kt
index 4a2de84..ef71399 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/MainApplication.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/MainApplication.kt
@@ -9,31 +9,25 @@ import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
-import android.content.pm.PackageInfo
 import com.squareup.picasso.OkHttp3Downloader
 import com.squareup.picasso.Picasso
 import nya.kitsunyan.foxydroid.content.Cache
 import nya.kitsunyan.foxydroid.content.Preferences
 import nya.kitsunyan.foxydroid.content.ProductPreferences
 import nya.kitsunyan.foxydroid.database.Database
-import nya.kitsunyan.foxydroid.entity.InstalledItem
 import nya.kitsunyan.foxydroid.index.RepositoryUpdater
 import nya.kitsunyan.foxydroid.network.Downloader
 import nya.kitsunyan.foxydroid.network.PicassoDownloader
 import nya.kitsunyan.foxydroid.service.Connection
 import nya.kitsunyan.foxydroid.service.SyncService
 import nya.kitsunyan.foxydroid.utility.Utils
+import nya.kitsunyan.foxydroid.utility.Utils.toInstalledItem
 import nya.kitsunyan.foxydroid.utility.extension.android.*
 import java.net.InetSocketAddress
 import java.net.Proxy
 
 @Suppress("unused")
 class MainApplication: Application() {
-  private fun PackageInfo.toInstalledItem(): InstalledItem {
-    val signatureString = singleSignature?.let(Utils::calculateHash).orEmpty()
-    return InstalledItem(packageName, versionName.orEmpty(), versionCodeCompat, signatureString)
-  }
-
   override fun attachBaseContext(base: Context) {
     super.attachBaseContext(Utils.configureLocale(base))
   }
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/content/Preferences.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/content/Preferences.kt
index 470fe68..dc5b1ce 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/content/Preferences.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/content/Preferences.kt
@@ -15,7 +15,7 @@ object Preferences {
 
   private val subject = PublishSubject.create<Key<*>>()
 
-  private val keys = sequenceOf(Key.AutoSync, Key.IncompatibleVersions, Key.ProxyHost, Key.ProxyPort, Key.ProxyType,
+  private val keys = sequenceOf(Key.AutoSync, Key.IncompatibleVersions, Key.RootInstallation, Key.ProxyHost, Key.ProxyPort, Key.ProxyType,
     Key.SortOrder, Key.Theme, Key.UpdateNotify, Key.UpdateUnstable).map { Pair(it.name, it) }.toMap()
 
   fun init(context: Context) {
@@ -82,6 +82,7 @@ object Preferences {
   sealed class Key<T>(val name: String, val default: Value<T>) {
     object AutoSync: Key<Preferences.AutoSync>("auto_sync", Value.EnumerationValue(Preferences.AutoSync.Wifi))
     object IncompatibleVersions: Key<Boolean>("incompatible_versions", Value.BooleanValue(false))
+    object RootInstallation : Key<Boolean>("root_installation",Value.BooleanValue(false))
     object ProxyHost: Key<String>("proxy_host", Value.StringValue("localhost"))
     object ProxyPort: Key<Int>("proxy_port", Value.IntValue(9050))
     object ProxyType: Key<Preferences.ProxyType>("proxy_type", Value.EnumerationValue(Preferences.ProxyType.Direct))
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/database/Database.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/database/Database.kt
index 7b7a24d..ab61b31 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/database/Database.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/database/Database.kt
@@ -17,12 +17,13 @@ import nya.kitsunyan.foxydroid.utility.extension.android.*
 import nya.kitsunyan.foxydroid.utility.extension.json.*
 import java.io.ByteArrayOutputStream
 
+// TODO migrate to Room
 object Database {
   fun init(context: Context): Boolean {
     val helper = Helper(context)
     db = helper.writableDatabase
     if (helper.created) {
-      for (repository in Repository.defaultRepositories) {
+      for (repository in Repository.defaultRepositories.sortedBy { it.name }) {
         RepositoryAdapter.put(repository)
       }
     }
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/entity/Product.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/entity/Product.kt
index 133e9b5..4e8b0d7 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/entity/Product.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/entity/Product.kt
@@ -129,7 +129,7 @@ data class Product(val repositoryId: Long, val packageName: String, val name: St
 
   companion object {
     fun <T> findSuggested(products: List<T>, installedItem: InstalledItem?, extract: (T) -> Product): T? {
-      return products.maxWith(compareBy({ extract(it).compatible &&
+      return products.maxWithOrNull(compareBy({ extract(it).compatible &&
         (installedItem == null || installedItem.signature in extract(it).signatures) }, { extract(it).versionCode }))
     }
 
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/entity/Repository.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/entity/Repository.kt
index 6debcf0..0a5feb1 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/entity/Repository.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/entity/Repository.kt
@@ -107,12 +107,104 @@ data class Repository(val id: Long, val address: String, val mirrors: List<Strin
         "official repository of The Guardian Project apps for use with the F-Droid client. Applications in this " +
         "repository are official binaries built by the original application developers and signed by the same key as " +
         "the APKs that are released in the Google Play Store.",
-        21, false, "B7C2EEFD8DAC7806AF67DFCD92EB18126BC08312A7F2D6F3862E46013C7A6135", "")
+        21, true, "B7C2EEFD8DAC7806AF67DFCD92EB18126BC08312A7F2D6F3862E46013C7A6135", "")
     }, run {
       defaultRepository("https://guardianproject.info/fdroid/archive", "Guardian Project Archive", "The official " +
         "repository of The Guardian Project apps for use with the F-Droid client. This contains older versions of " +
         "applications from the main repository.", 21, false,
         "B7C2EEFD8DAC7806AF67DFCD92EB18126BC08312A7F2D6F3862E46013C7A6135", "")
+    }, run {
+      defaultRepository("https://apt.izzysoft.de/fdroid/repo", "IzzyOnDroid",
+        "IzzyOnDoird is a hub for official binaries of huge collection of open-source applications.",
+        21, true, "3BF0D6ABFEAE2F401707B6D966BE743BF0EEE49C2561B9BA39073711F628937A", "")
+    }, run {
+      defaultRepository("https://microg.org/fdroid/repo", "MicroG Project",
+        "Official repository of the open-source implementation of Google Play Services.",
+        21, true, "9BD06727E62796C0130EB6DAB39B73157451582CBD138E86C468ACC395D14165", "")
+    }, run {
+      defaultRepository("https://repo.netsyms.com/fdroid/repo", "Netsyms Technologies",
+        "Open-source apps created by Netsyms Technologies.",
+        21, true, "2581BA7B32D3AB443180C4087CAB6A7E8FB258D3A6E98870ECB3C675E4D64489", "")
+    }, run {
+      defaultRepository("https://fdroid.bromite.org/fdroid/repo", "Bromite",
+        "Bromite is a Chromium plus ad blocking and enhanced privacy; take back your browser.",
+        21, true, "E1EE5CD076D7B0DC84CB2B45FB78B86DF2EB39A3B6C56BA3DC292A5E0C3B9504", "")
+    }, run {
+      defaultRepository("https://molly.im/fdroid/foss/fdroid/repo", "Molly",
+        "Molly is a fork of Signal focused on security.",
+        21, false, "5198DAEF37FC23C14D5EE32305B2AF45787BD7DF2034DE33AD302BDB3446DF74", "")
+    }, run {
+      defaultRepository("https://archive.newpipe.net/fdroid/repo", "NewPipe",
+        "NewPipe's official independent repository.",
+        21, false, "E2402C78F9B97C6C89E97DB914A2751FDA1D02FE2039CC0897A462BDB57E7501", "")
+    }, run {
+      defaultRepository("https://www.collaboraoffice.com/downloads/fdroid/repo", "Collabora Office",
+        "Collabora Office is an office suite based on LibreOffice.",
+        21, false, "573258C84E149B5F4D9299E7434B2B69A8410372921D4AE586BA91EC767892CC", "")
+    }, run {
+      defaultRepository("https://www.droidware.info/fdroid/repo", "Ungoogled Chromium",
+        "Chromium sans dependency on Google web services. It also features some enhancments to privacy, control & transparency",
+        21, false, "2144449AB1DD270EC31B6087409B5D0EA39A75A9F290DA62AC1B238A0EAAF851", "")
+    }, run {
+      defaultRepository("https://fdroid.libretro.com/repo", "LibRetro",
+        "The official canary repository for this great retro emulators hub.",
+        21, false, "3F05B24D497515F31FEAB421297C79B19552C5C81186B3750B7C131EF41D733D", "")
+    }, run {
+      defaultRepository("https://cdn.kde.org/android/fdroid/repo", "KDE Android",
+        "The official nightly repository for KDE Android apps.",
+        21, false, "B3EBE10AFA6C5C400379B34473E843D686C61AE6AD33F423C98AF903F056523F", "")
+    }, run {
+      defaultRepository("https://rfc2822.gitlab.io/fdroid-firefox/fdroid/repo", "Unofficial Firefox",
+        "An unofficial repository with some of the most well known FOSS apps not on F-Droid.",
+        21, false, "8F992BBBA0340EFE6299C7A410B36D9C8889114CA6C58013C3587CDA411B4AED", "")
+    }, run {
+      defaultRepository("https://calyxos.gitlab.io/calyx-fdroid-repo/fdroid/repo", "Calyx OS Repo",
+        "The official Calyx Labs F-Droid repository.",
+        21, false, "C44D58B4547DE5096138CB0B34A1CC99DAB3B4274412ED753FCCBFC11DC1B7B6", "")
+    }, run {
+      defaultRepository("https://divestos.org/fdroid/official", "Divest OS Repo",
+        "The official Divest OS F-Droid repository.",
+        21, false, "E4BE8D6ABFA4D9D4FEEF03CDDA7FF62A73FD64B75566F6DD4E5E577550BE8467", "")
+    }, run {
+      defaultRepository("https://fdroid.fedilab.app/repo", "Fedilab",
+        "Fedilab's official F-Droid repository.",
+        21, false, "11F0A69910A4280E2CD3CCC3146337D006BE539B18E1A9FEACE15FF757A94FEB", "")
+    }, run {
+      defaultRepository("https://store.nethunter.com/repo", "Kali Nethunter",
+        "Kali Nethunter's official selection of original binaries.",
+        21, false, "7E418D34C3AD4F3C37D7E6B0FACE13332364459C862134EB099A3BDA2CCF4494", "")
+    }, run {
+      defaultRepository("https://secfirst.org/fdroid/repo", "Umbrella",
+        "Security advices, tutorials, tools etc..",
+        21, false, "39EB57052F8D684514176819D1645F6A0A7BD943DBC31AB101949006AC0BC228", "")
+    }, run {
+      defaultRepository("https://thecapslock.gitlab.io/fdroid-patched-apps/fdroid/repo", "Patched Apps",
+        "A collection of patched applications to provide better compatibility, privacy etc..",
+        21, false, "313D9E6E789FF4E8E2D687AAE31EEF576050003ED67963301821AC6D3763E3AC", "")
+    }, run {
+      defaultRepository("https://mobileapp.bitwarden.com/fdroid/repo", "Bitwarden",
+        "The official repository for Bitwarden.",
+        21, false, "BC54EA6FD1CD5175BCCCC47C561C5726E1C3ED7E686B6DB4B18BAC843A3EFE6C", "")
+    }, run {
+      defaultRepository("https://briarproject.org/fdroid/repo", "Briar",
+        "An serverless/offline messenger that hides your metadata.",
+        21, false, "1FB874BEE7276D28ECB2C9B06E8A122EC4BCB4008161436CE474C257CBF49BD6", "")
+    }, run {
+      defaultRepository("https://guardianproject-wind.s3.amazonaws.com/fdroid/repo", "Wind Project",
+        "A collection of interesting offline/serverless apps.",
+        21, false, "182CF464D219D340DA443C62155198E399FEC1BC4379309B775DD9FC97ED97E1", "")
+    }, run {
+      defaultRepository("https://repo.alefvanoon.xyz/fdroid/repo", "Alefvanoon",
+        "A collection of open-source apps that for one reason or another not on F-Droid.",
+        21, false, "04DF198F553069C7BE60F057AE12000E99F7700DA895CC1CE2EB11DC871581F1", "")
+    }, run {
+      defaultRepository("https://repo.unifiedpush.org/", "UnifiedPush",
+        "A repository of apps for unifiedPush.",
+        21, false, "DF11176406C63A7876103CE6CC1A8FCA239DF76AA5F6DE5CDBAFE73ECDBF1875", "")
+    }, run {
+      defaultRepository("https://nanolx.org/fdroid/repo", "NanoDroid",
+        "A companion repository to microG's installer.",
+        21, false, "862ED9F13A3981432BF86FE93D14596B381D75BE83A1D616E2D44A12654AD015", "")
     })
   }
 }
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/screen/PreferencesFragment.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/screen/PreferencesFragment.kt
index 383f753..7f06571 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/screen/PreferencesFragment.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/screen/PreferencesFragment.kt
@@ -19,6 +19,7 @@ import android.widget.TextView
 import android.widget.Toolbar
 import androidx.fragment.app.DialogFragment
 import androidx.fragment.app.Fragment
+import com.topjohnwu.superuser.Shell
 import io.reactivex.rxjava3.disposables.Disposable
 import nya.kitsunyan.foxydroid.R
 import nya.kitsunyan.foxydroid.content.Preferences
@@ -82,6 +83,8 @@ class PreferencesFragment: ScreenFragment() {
           is Preferences.Theme.Dark -> getString(R.string.dark)
         }
       }
+      addSwitch(Preferences.Key.RootInstallation, getString(R.string.root_installation),
+        getString(R.string.root_installation_summary))
       addSwitch(Preferences.Key.IncompatibleVersions, getString(R.string.incompatible_versions),
         getString(R.string.incompatible_versions_summary))
     }
@@ -110,6 +113,7 @@ class PreferencesFragment: ScreenFragment() {
       preferences[Preferences.Key.ProxyHost]?.setEnabled(enabled)
       preferences[Preferences.Key.ProxyPort]?.setEnabled(enabled)
     }
+    preferences[Preferences.Key.RootInstallation]?.setEnabled(Shell.getShell().isRoot)
     if (key == Preferences.Key.Theme) {
       requireActivity().recreate()
     }
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ProductFragment.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ProductFragment.kt
index deb28c9..f359437 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ProductFragment.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ProductFragment.kt
@@ -34,6 +34,7 @@ import nya.kitsunyan.foxydroid.service.Connection
 import nya.kitsunyan.foxydroid.service.DownloadService
 import nya.kitsunyan.foxydroid.utility.RxUtils
 import nya.kitsunyan.foxydroid.utility.Utils
+import nya.kitsunyan.foxydroid.utility.Utils.startPackageInstaller
 import nya.kitsunyan.foxydroid.utility.extension.android.*
 import nya.kitsunyan.foxydroid.widget.DividerItemDecoration
 
@@ -55,7 +56,7 @@ class ProductFragment(): ScreenFragment(), ProductAdapter.Callbacks {
 
   private enum class Action(val id: Int, val adapterAction: ProductAdapter.Action, val iconResId: Int) {
     INSTALL(1, ProductAdapter.Action.INSTALL, R.drawable.ic_archive),
-    UPDATE(2, ProductAdapter.Action.UPDATE, R.drawable.ic_archive),
+    UPDATE(2, ProductAdapter.Action.UPDATE, R.drawable.ic_update),
     LAUNCH(3, ProductAdapter.Action.LAUNCH, R.drawable.ic_launch),
     DETAILS(4, ProductAdapter.Action.DETAILS, R.drawable.ic_tune),
     UNINSTALL(5, ProductAdapter.Action.UNINSTALL, R.drawable.ic_delete)
@@ -332,23 +333,7 @@ class ProductFragment(): ScreenFragment(), ProductAdapter.Callbacks {
       ProductAdapter.Action.INSTALL,
       ProductAdapter.Action.UPDATE -> {
         val installedItem = installed?.installedItem
-        val productRepository = Product.findSuggested(products, installedItem) { it.first }
-        val compatibleReleases = productRepository?.first?.selectedReleases.orEmpty()
-          .filter { installedItem == null || installedItem.signature == it.signature }
-        val release = if (compatibleReleases.size >= 2) {
-          compatibleReleases
-            .filter { it.platforms.contains(Android.primaryPlatform) }
-            .minBy { it.platforms.size }
-            ?: compatibleReleases.minBy { it.platforms.size }
-            ?: compatibleReleases.firstOrNull()
-        } else {
-          compatibleReleases.firstOrNull()
-        }
-        val binder = downloadConnection.binder
-        if (productRepository != null && release != null && binder != null) {
-          binder.enqueue(packageName, productRepository.first.name, productRepository.second, release)
-        }
-        Unit
+        Utils.startInstallUpdateAction(packageName, installedItem, products, downloadConnection)
       }
       ProductAdapter.Action.LAUNCH -> {
         val launcherActivities = installed?.launcherActivities.orEmpty()
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ProductsFragment.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ProductsFragment.kt
index 7af8a19..1cca4ac 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ProductsFragment.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ProductsFragment.kt
@@ -30,10 +30,10 @@ class ProductsFragment(): ScreenFragment(), CursorOwner.Callback {
     private const val STATE_LAYOUT_MANAGER = "layoutManager"
   }
 
-  enum class Source(val titleResId: Int, val sections: Boolean, val order: Boolean) {
-    AVAILABLE(R.string.available, true, true),
-    INSTALLED(R.string.installed, false, false),
-    UPDATES(R.string.updates, false, false)
+  enum class Source(val titleResId: Int, val sections: Boolean, val order: Boolean, val updates: Boolean) {
+    AVAILABLE(R.string.available, true, true, false),
+    INSTALLED(R.string.installed, false, false, false),
+    UPDATES(R.string.updates, false, false, true)
   }
 
   constructor(source: Source): this() {
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ScreenActivity.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ScreenActivity.kt
index 2466e1c..b75d00e 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ScreenActivity.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/screen/ScreenActivity.kt
@@ -2,7 +2,6 @@ package nya.kitsunyan.foxydroid.screen
 
 import android.content.Context
 import android.content.Intent
-import android.net.Uri
 import android.os.Bundle
 import android.os.Parcel
 import android.view.View
@@ -13,12 +12,11 @@ import android.widget.Toolbar
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentActivity
 import nya.kitsunyan.foxydroid.R
-import nya.kitsunyan.foxydroid.content.Cache
 import nya.kitsunyan.foxydroid.content.Preferences
 import nya.kitsunyan.foxydroid.database.CursorOwner
 import nya.kitsunyan.foxydroid.utility.KParcelable
 import nya.kitsunyan.foxydroid.utility.Utils
-import nya.kitsunyan.foxydroid.utility.extension.android.*
+import nya.kitsunyan.foxydroid.utility.Utils.startPackageInstaller
 import nya.kitsunyan.foxydroid.utility.extension.resources.*
 import nya.kitsunyan.foxydroid.utility.extension.text.*
 
@@ -204,11 +202,7 @@ abstract class ScreenActivity: FragmentActivity() {
       is SpecialIntent.Install -> {
         val packageName = specialIntent.packageName
         if (!packageName.isNullOrEmpty()) {
-          val fragment = currentFragment
-          if (fragment !is ProductFragment || fragment.packageName != packageName) {
-            pushFragment(ProductFragment(packageName))
-          }
-          specialIntent.cacheFileName?.let(::startPackageInstaller)
+          specialIntent.cacheFileName?.let { startPackageInstaller(it) }
         }
         Unit
       }
@@ -229,18 +223,6 @@ abstract class ScreenActivity: FragmentActivity() {
     }
   }
 
-  internal fun startPackageInstaller(cacheFileName: String) {
-    val (uri, flags) = if (Android.sdk(24)) {
-      Pair(Cache.getReleaseUri(this, cacheFileName), Intent.FLAG_GRANT_READ_URI_PERMISSION)
-    } else {
-      Pair(Uri.fromFile(Cache.getReleaseFile(this, cacheFileName)), 0)
-    }
-    // TODO Handle deprecation
-    @Suppress("DEPRECATION")
-    startActivity(Intent(Intent.ACTION_INSTALL_PACKAGE)
-      .setDataAndType(uri, "application/vnd.android.package-archive").setFlags(flags))
-  }
-
   internal fun navigateProduct(packageName: String) = pushFragment(ProductFragment(packageName))
   internal fun navigateRepositories() = pushFragment(RepositoriesFragment())
   internal fun navigatePreferences() = pushFragment(PreferencesFragment())
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/screen/TabsFragment.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/screen/TabsFragment.kt
index 61a2b6a..f973d77 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/screen/TabsFragment.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/screen/TabsFragment.kt
@@ -1,7 +1,9 @@
 package nya.kitsunyan.foxydroid.screen
 
 import android.animation.ValueAnimator
+import android.app.AlertDialog
 import android.content.Context
+import android.content.DialogInterface
 import android.content.res.ColorStateList
 import android.graphics.Canvas
 import android.graphics.ColorFilter
@@ -16,13 +18,9 @@ import android.view.View
 import android.view.ViewGroup
 import android.view.animation.AccelerateInterpolator
 import android.view.animation.DecelerateInterpolator
-import android.widget.FrameLayout
-import android.widget.ImageView
-import android.widget.LinearLayout
-import android.widget.SearchView
-import android.widget.TextView
-import android.widget.Toolbar
+import android.widget.*
 import androidx.fragment.app.Fragment
+import androidx.fragment.app.findFragment
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.viewpager2.adapter.FragmentStateAdapter
@@ -33,6 +31,7 @@ import io.reactivex.rxjava3.disposables.Disposable
 import io.reactivex.rxjava3.schedulers.Schedulers
 import nya.kitsunyan.foxydroid.R
 import nya.kitsunyan.foxydroid.content.Preferences
+import nya.kitsunyan.foxydroid.database.CursorOwner
 import nya.kitsunyan.foxydroid.database.Database
 import nya.kitsunyan.foxydroid.entity.ProductItem
 import nya.kitsunyan.foxydroid.service.Connection
@@ -61,6 +60,7 @@ class TabsFragment: ScreenFragment() {
     val sectionChange = view.findViewById<View>(R.id.section_change)!!
     val sectionName = view.findViewById<TextView>(R.id.section_name)!!
     val sectionIcon = view.findViewById<ImageView>(R.id.section_icon)!!
+    val updateAll = view.findViewById<Button>(R.id.update_all)!! // TODO update visibility based on need
   }
 
   private var searchMenuItem: MenuItem? = null
@@ -69,6 +69,7 @@ class TabsFragment: ScreenFragment() {
   private var layout: Layout? = null
   private var sectionsList: RecyclerView? = null
   private var viewPager: ViewPager2? = null
+  private var productsList: MutableList<ProductItem> = mutableListOf() // TODO to keep a list of updated apps
 
   private var showSections = false
     set(value) {
@@ -220,6 +221,7 @@ class TabsFragment: ScreenFragment() {
     section = savedInstanceState?.getParcelable(STATE_SECTION) ?: ProductItem.Section.All
     layout.sectionChange.setOnClickListener { showSections = sections
       .any { it !is ProductItem.Section.All } && !showSections }
+    layout.updateAll.setOnClickListener { updateAll() }
 
     updateOrder()
     sortOrderDisposable = Preferences.observable.subscribe {
@@ -462,28 +464,55 @@ class TabsFragment: ScreenFragment() {
     }
   }
 
+  fun updateAll() {
+    AlertDialog.Builder(requireContext())
+      .setTitle(R.string.update_all)
+      .setMessage(productsList.joinToString(",") { it.name }) // TODO or maybe use a checklist
+      .setPositiveButton(android.R.string.yes) { _: DialogInterface, _: Int ->
+        productsList.forEach {
+          // TODO startUpdateInstallAction for each (selected) app after accomulating the needed info
+        }
+      }
+      .setNegativeButton(android.R.string.no, null)
+      .create()
+      .show()
+  }
+
   private val pageChangeCallback = object: ViewPager2.OnPageChangeCallback() {
     override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {
       val layout = layout!!
-      val fromSections = ProductsFragment.Source.values()[position].sections
-      val toSections = if (positionOffset <= 0f) fromSections else
-        ProductsFragment.Source.values()[position + 1].sections
-      val offset = if (fromSections != toSections) {
+      val from = ProductsFragment.Source.values()[position]
+      val to = ProductsFragment.Source.values()[if (positionOffset <= 0f) position else position + 1]
+      val fromSections = from.sections
+      val fromUpdates = from.updates
+      val toSections = to.sections
+      val toUpdates = to.updates
+      val sectionsOffset = if (fromSections != toSections) {
         if (fromSections) 1f - positionOffset else positionOffset
       } else {
         if (fromSections) 1f else 0f
       }
+      val updatesOffset = if (fromUpdates != toUpdates) {
+        if (fromUpdates) 1f - positionOffset else positionOffset
+      } else {
+        if (fromUpdates) 1f else 0f
+      }
       (layout.tabs.background as TabsBackgroundDrawable)
         .update(position + positionOffset, layout.tabs.childCount)
       assert(layout.sectionLayout.childCount == 1)
       val child = layout.sectionLayout.getChildAt(0)
       val height = child.layoutParams.height
       assert(height > 0)
-      val currentHeight = (offset * height).roundToInt()
-      if (layout.sectionLayout.layoutParams.height != currentHeight) {
-        layout.sectionLayout.layoutParams.height = currentHeight
+      val sectionsCurrentHeight = (sectionsOffset * height).roundToInt()
+      if (layout.sectionLayout.layoutParams.height != sectionsCurrentHeight) {
+        layout.sectionLayout.layoutParams.height = sectionsCurrentHeight
         layout.sectionLayout.requestLayout()
       }
+      val updatesCurrentHeight = (updatesOffset * height).roundToInt()
+      if (layout.updateAll.layoutParams.height != updatesCurrentHeight) {
+        layout.updateAll.layoutParams.height = updatesCurrentHeight
+        layout.updateAll.requestLayout()
+      }
     }
 
     override fun onPageSelected(position: Int) {
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/service/DownloadService.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/service/DownloadService.kt
index 7c4c4e2..c37b56c 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/service/DownloadService.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/service/DownloadService.kt
@@ -9,6 +9,7 @@ import android.content.Intent
 import android.net.Uri
 import android.view.ContextThemeWrapper
 import androidx.core.app.NotificationCompat
+import com.topjohnwu.superuser.Shell
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
 import io.reactivex.rxjava3.core.Observable
 import io.reactivex.rxjava3.disposables.Disposable
@@ -18,6 +19,7 @@ import nya.kitsunyan.foxydroid.Common
 import nya.kitsunyan.foxydroid.MainActivity
 import nya.kitsunyan.foxydroid.R
 import nya.kitsunyan.foxydroid.content.Cache
+import nya.kitsunyan.foxydroid.content.Preferences
 import nya.kitsunyan.foxydroid.entity.Release
 import nya.kitsunyan.foxydroid.entity.Repository
 import nya.kitsunyan.foxydroid.network.Downloader
@@ -234,9 +236,12 @@ class DownloadService: ConnectionService<DownloadService.Binder>() {
   private fun publishSuccess(task: Task) {
     var consumed = false
     stateSubject.onNext(State.Success(task.packageName, task.name, task.release) { consumed = true })
-    if (!consumed) {
-      showNotificationInstall(task)
-    }
+    if (consumed || (Preferences[Preferences.Key.RootInstallation] && Shell.getShell().isRoot))
+      PendingIntent.getBroadcast(this, 0, Intent(this, Receiver::class.java)
+        .setAction("$ACTION_INSTALL.${task.packageName}")
+        .putExtra(EXTRA_CACHE_FILE_NAME, task.release.cacheFileName), PendingIntent.FLAG_UPDATE_CURRENT)
+        .send()
+    else showNotificationInstall(task)
   }
 
   private fun validatePackage(task: Task, file: File): ValidationError? {
diff --git a/src/main/kotlin/nya/kitsunyan/foxydroid/utility/Utils.kt b/src/main/kotlin/nya/kitsunyan/foxydroid/utility/Utils.kt
index e6d72d6..215bf19 100644
--- a/src/main/kotlin/nya/kitsunyan/foxydroid/utility/Utils.kt
+++ b/src/main/kotlin/nya/kitsunyan/foxydroid/utility/Utils.kt
@@ -1,17 +1,31 @@
 package nya.kitsunyan.foxydroid.utility
 
 import android.animation.ValueAnimator
+import android.app.Activity
 import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageInfo
 import android.content.pm.Signature
 import android.content.res.Configuration
 import android.graphics.drawable.Drawable
+import android.net.Uri
 import android.os.LocaleList
 import android.provider.Settings
+import android.util.Log
+import com.topjohnwu.superuser.Shell
 import nya.kitsunyan.foxydroid.BuildConfig
 import nya.kitsunyan.foxydroid.R
+import nya.kitsunyan.foxydroid.content.Cache
+import nya.kitsunyan.foxydroid.content.Preferences
+import nya.kitsunyan.foxydroid.entity.InstalledItem
+import nya.kitsunyan.foxydroid.entity.Product
+import nya.kitsunyan.foxydroid.entity.Repository
+import nya.kitsunyan.foxydroid.service.Connection
+import nya.kitsunyan.foxydroid.service.DownloadService
 import nya.kitsunyan.foxydroid.utility.extension.android.*
 import nya.kitsunyan.foxydroid.utility.extension.resources.*
 import nya.kitsunyan.foxydroid.utility.extension.text.*
+import java.io.File
 import java.security.MessageDigest
 import java.security.cert.Certificate
 import java.security.cert.CertificateEncodingException
@@ -97,4 +111,84 @@ object Utils {
       Settings.Global.getFloat(context.contentResolver, Settings.Global.ANIMATOR_DURATION_SCALE, 1f) != 0f
     }
   }
+
+  fun quote(string: String) = "\"${string.replace(Regex("""[\\$"`]""")) { c -> "\\${c.value}" }}\""
+
+  internal fun Activity.startPackageInstaller(cacheFileName: String) {
+    if (Preferences[Preferences.Key.RootInstallation] && Shell.getShell().isRoot) {
+      val releaseFile = Cache.getReleaseFile(this, cacheFileName)
+      val commandBuilder = StringBuilder()
+      // disable verify apps over usb
+      commandBuilder.append("settings put global verifier_verify_adb_installs 0 ; ")
+      // Install main package
+      commandBuilder.append(getPackageInstallCommand(releaseFile))
+      // re-enable verify apps over usb after install
+      commandBuilder.append(" ; settings put global verifier_verify_adb_installs 1")
+      val result = Shell.su(commandBuilder.toString()).exec()
+      if (result.isSuccess) Shell.su("${getUtilBoxPath()} rm ${quote(releaseFile.absolutePath)}")
+    } else {
+      val (uri, flags) = if (Android.sdk(24)) {
+        Pair(Cache.getReleaseUri(this, cacheFileName), Intent.FLAG_GRANT_READ_URI_PERMISSION)
+      } else {
+        Pair(Uri.fromFile(Cache.getReleaseFile(this, cacheFileName)), 0)
+      }
+      // TODO Handle deprecation
+      @Suppress("DEPRECATION")
+      startActivity(
+        Intent(Intent.ACTION_INSTALL_PACKAGE)
+          .setDataAndType(uri, "application/vnd.android.package-archive").setFlags(flags)
+      )
+    }
+  }
+
+  private fun getPackageInstallCommand(apkPath: File): String =
+    "cat \"${apkPath.absolutePath}\" | pm install -t -r -S ${apkPath.length()}"
+
+  private fun getUtilBoxPath(): String {
+    listOf("toybox", "busybox").forEach {
+      var shellResult = Shell.su("which $it").exec()
+      if (shellResult.out.isNotEmpty()) {
+        val utilBoxPath = shellResult.out.joinToString("")
+        if (utilBoxPath.isNotEmpty()) {
+          val utilBoxQuoted = quote(utilBoxPath)
+          shellResult = Shell.su("$utilBoxQuoted --version").exec()
+          if (shellResult.out.isNotEmpty()) {
+            val utilBoxVersion = shellResult.out.joinToString("")
+            Log.i(this.javaClass.canonicalName,"Using Utilbox $it : $utilBoxQuoted $utilBoxVersion")
+          }
+          return utilBoxQuoted
+        }
+      }
+    }
+    return ""
+  }
+
+  fun PackageInfo.toInstalledItem(): InstalledItem {
+    val signatureString = singleSignature?.let(Utils::calculateHash).orEmpty()
+    return InstalledItem(packageName, versionName.orEmpty(), versionCodeCompat, signatureString)
+  }
+
+  fun startInstallUpdateAction(
+    packageName: String,
+    installedItem: InstalledItem?,
+    products: List<Pair<Product, Repository>>,
+    downloadConnection: Connection<DownloadService.Binder, DownloadService>
+  ) {
+    val pairProductRepository = Product.findSuggested(products, installedItem) { it.first }
+    val compatibleReleases = pairProductRepository?.first?.selectedReleases.orEmpty()
+      .filter { installedItem == null || installedItem.signature == it.signature }
+    val release = if (compatibleReleases.size >= 2) {
+      compatibleReleases
+        .filter { it.platforms.contains(Android.primaryPlatform) }
+        .minByOrNull { it.platforms.size }
+        ?: compatibleReleases.minByOrNull { it.platforms.size }
+        ?: compatibleReleases.firstOrNull()
+    } else {
+      compatibleReleases.firstOrNull()
+    }
+    val binder = downloadConnection.binder
+    if (pairProductRepository != null && release != null && binder != null) {
+      binder.enqueue(packageName, pairProductRepository.first.name, pairProductRepository.second, release)
+    }
+  }
 }
diff --git a/src/main/res/drawable/ic_update.xml b/src/main/res/drawable/ic_update.xml
new file mode 100644
index 0000000..81af728
--- /dev/null
+++ b/src/main/res/drawable/ic_update.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M11,8.75v3.68c0,0.35 0.19,0.68 0.49,0.86l3.12,1.85c0.36,0.21 0.82,0.09 1.03,-0.26c0.21,-0.36 0.1,-0.82 -0.26,-1.03l-2.87,-1.71v-3.4C12.5,8.34 12.16,8 11.75,8S11,8.34 11,8.75zM21,9.5V4.21c0,-0.45 -0.54,-0.67 -0.85,-0.35l-1.78,1.78c-1.81,-1.81 -4.39,-2.85 -7.21,-2.6c-4.19,0.38 -7.64,3.75 -8.1,7.94C2.46,16.4 6.69,21 12,21c4.59,0 8.38,-3.44 8.93,-7.88c0.07,-0.6 -0.4,-1.12 -1,-1.12c-0.5,0 -0.92,0.37 -0.98,0.86c-0.43,3.49 -3.44,6.19 -7.05,6.14c-3.71,-0.05 -6.84,-3.18 -6.9,-6.9C4.94,8.2 8.11,5 12,5c1.93,0 3.68,0.79 4.95,2.05l-2.09,2.09C14.54,9.46 14.76,10 15.21,10h5.29C20.78,10 21,9.78 21,9.5z" />
+</vector>
diff --git a/src/main/res/layout/fragment.xml b/src/main/res/layout/fragment.xml
index c107a21..5c01053 100644
--- a/src/main/res/layout/fragment.xml
+++ b/src/main/res/layout/fragment.xml
@@ -24,6 +24,16 @@
       android:layout_width="match_parent"
       android:layout_height="wrap_content" />
 
+    <Button
+        android:id="@+id/update_all"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:background="?android:colorPrimary"
+        android:drawableEnd="@drawable/ic_update"
+        android:fontFamily="sans-serif-medium"
+        android:padding="8dp"
+        android:textColor="?android:attr/textColorPrimary"
+        android:text="@string/update_all" />
   </LinearLayout>
 
   <FrameLayout
diff --git a/src/main/res/values/colors.xml b/src/main/res/values/colors.xml
index 1839bce..d1c4aaf 100644
--- a/src/main/res/values/colors.xml
+++ b/src/main/res/values/colors.xml
@@ -6,7 +6,7 @@
   <color name="primary_dark_light">#ff21242b</color>
   <color name="accent_default_light">#ff1976d2</color>
   <color name="error_default_light">#ffff1d18</color>
-  <color name="background_dark">#ff111111</color>
+  <color name="background_dark">#ff000000</color>
   <color name="primary_dark">#ff262c38</color>
   <color name="primary_dark_dark">#ff21242b</color>
   <color name="accent_default_dark">#ff47a2fc</color>
diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index 6dcf864..974fb3c 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -163,5 +163,8 @@
   <string name="versions">Versions</string>
   <string name="waiting_to_start_download">Waiting to start download</string>
   <string name="website">Website</string>
+    <string name="root_installation">Root installation</string>
+  <string name="root_installation_summary">Install apps automatically using root permission</string>
+    <string name="update_all">Update all</string>
 
 </resources>