diff --git a/app/build.gradle b/app/build.gradle
index 9cb129bae..f77b16b51 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -38,12 +38,12 @@ android {
 
     packagingOptions {
         exclude '/META-INF/*.version'
-        exclude '/META-INF/*.kotlin_module'
-        exclude '/META-INF/rxkotlin.properties'
+        //exclude '/META-INF/*.kotlin_module'
+        //exclude '/META-INF/rxkotlin.properties'
         exclude '/androidsupportmultidexversion.txt'
         exclude '/org/**'
-        exclude '/kotlin/**'
-        exclude '/kotlinx/**'
+        //exclude '/kotlin/**'
+        //exclude '/kotlinx/**'
     }
 }
 
@@ -62,6 +62,9 @@ dependencies {
     implementation 'com.github.skoumalcz:teanity:0.3.3'
     implementation 'com.ncapdevi:frag-nav:3.2.0'
 
+    def vRoom = "2.1.0-alpha05"
+    implementation "androidx.room:room-rxjava2:${vRoom}"
+
     def markwonVersion = '3.0.0'
     implementation "ru.noties.markwon:core:${markwonVersion}"
     implementation "ru.noties.markwon:html:${markwonVersion}"
@@ -87,6 +90,9 @@ dependencies {
     implementation "com.squareup.moshi:moshi:${vMoshi}"
     implementation "com.squareup.moshi:moshi-kotlin:${vMoshi}"
 
+    kapt "com.squareup.moshi:moshi-kotlin-codegen:${vMoshi}"
+    kapt "androidx.room:room-compiler:${vRoom}"
+
     def vKotpref = "2.8.0"
     implementation "com.chibatching.kotpref:kotpref:${vKotpref}"
 
diff --git a/app/src/main/java/com/topjohnwu/magisk/App.kt b/app/src/main/java/com/topjohnwu/magisk/App.kt
index e34bfaacc..84150191e 100644
--- a/app/src/main/java/com/topjohnwu/magisk/App.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/App.kt
@@ -11,6 +11,7 @@ import android.os.Build
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.multidex.MultiDex
+import com.chibatching.kotpref.Kotpref
 import com.topjohnwu.magisk.data.database.MagiskDB
 import com.topjohnwu.magisk.data.database.RepoDatabaseHelper
 import com.topjohnwu.magisk.di.koinModules
@@ -39,6 +40,12 @@ open class App : Application(), Application.ActivityLifecycleCallbacks {
     @Volatile
     private var foreground: Activity? = null
 
+    override fun onCreate() {
+        super.onCreate()
+
+        Kotpref.init(this)
+    }
+
     override fun attachBaseContext(base: Context) {
         super.attachBaseContext(base)
         if (BuildConfig.DEBUG)
diff --git a/app/src/main/java/com/topjohnwu/magisk/di/DatabaseModule.kt b/app/src/main/java/com/topjohnwu/magisk/di/DatabaseModule.kt
index 0f79c302c..92d68d2b4 100644
--- a/app/src/main/java/com/topjohnwu/magisk/di/DatabaseModule.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/di/DatabaseModule.kt
@@ -1,12 +1,24 @@
 package com.topjohnwu.magisk.di
 
+import android.content.Context
+import androidx.room.Room
 import com.topjohnwu.magisk.App
-import com.topjohnwu.magisk.data.database.MagiskDB
-import com.topjohnwu.magisk.data.database.RepoDatabaseHelper
+import com.topjohnwu.magisk.data.database.*
 import org.koin.dsl.module
 
 
 val databaseModule = module {
     single { MagiskDB(get<App>().protectedContext) }
     single { RepoDatabaseHelper(get()) }
+    single { createDatabase(get()) }
+    single { LogDao() }
+    single { PolicyDao(get()) }
+    single { SettingsDao() }
+    single { StringsDao() }
+    single { createRepositoryDao(get()) }
 }
+
+fun createDatabase(context: Context): AppDatabase =
+    Room.databaseBuilder(context, AppDatabase::class.java, AppDatabase.NAME).build()
+
+fun createRepositoryDao(db: AppDatabase) = db.repoDao()
\ No newline at end of file
diff --git a/app/src/main/java/com/topjohnwu/magisk/di/NetworkingModule.kt b/app/src/main/java/com/topjohnwu/magisk/di/NetworkingModule.kt
index f485acc3c..cbdeb2bc3 100644
--- a/app/src/main/java/com/topjohnwu/magisk/di/NetworkingModule.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/di/NetworkingModule.kt
@@ -1,6 +1,7 @@
 package com.topjohnwu.magisk.di
 
 import com.squareup.moshi.Moshi
+import com.squareup.moshi.kotlin.reflect.KotlinJsonAdapterFactory
 import com.topjohnwu.magisk.Constants
 import com.topjohnwu.magisk.data.network.GithubApiServices
 import com.topjohnwu.magisk.data.network.GithubRawApiServices
@@ -38,7 +39,9 @@ fun createOkHttpClient(): OkHttpClient {
 }
 
 fun createConverterFactory(): Converter.Factory {
-    val moshi = Moshi.Builder().build()
+    val moshi = Moshi.Builder()
+        .add(KotlinJsonAdapterFactory())
+        .build()
     return MoshiConverterFactory.create(moshi)
 }
 
diff --git a/app/src/main/java/com/topjohnwu/magisk/di/RepositoryModule.kt b/app/src/main/java/com/topjohnwu/magisk/di/RepositoryModule.kt
index 0d55b410c..79349f63e 100644
--- a/app/src/main/java/com/topjohnwu/magisk/di/RepositoryModule.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/di/RepositoryModule.kt
@@ -1,6 +1,13 @@
 package com.topjohnwu.magisk.di
 
+import com.topjohnwu.magisk.data.repository.LogRepository
+import com.topjohnwu.magisk.data.repository.MagiskRepository
+import com.topjohnwu.magisk.data.repository.ModuleRepository
 import org.koin.dsl.module
 
 
-val repositoryModule = module {}
+val repositoryModule = module {
+    single { MagiskRepository(get(), get()) }
+    single { ModuleRepository(get(), get(), get(), get()) }
+    single { LogRepository(get()) }
+}
diff --git a/app/src/main/java/com/topjohnwu/magisk/di/ViewModelsModule.kt b/app/src/main/java/com/topjohnwu/magisk/di/ViewModelsModule.kt
index 9983734a8..8b0f22d4c 100644
--- a/app/src/main/java/com/topjohnwu/magisk/di/ViewModelsModule.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/di/ViewModelsModule.kt
@@ -15,7 +15,7 @@ import org.koin.dsl.module
 
 val viewModelModules = module {
     viewModel { MainViewModel() }
-    viewModel { HomeViewModel(get(), get()) }
+    viewModel { HomeViewModel(get(), get(), get()) }
     viewModel { SuperuserViewModel(get(), get(), get(), get()) }
     viewModel { HideViewModel(get(), get()) }
     viewModel { ModuleViewModel(get(), get()) }
diff --git a/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskApp.kt b/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskApp.kt
new file mode 100644
index 000000000..6fc7d3cfd
--- /dev/null
+++ b/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskApp.kt
@@ -0,0 +1,11 @@
+package com.topjohnwu.magisk.model.entity
+
+import com.squareup.moshi.JsonClass
+
+@JsonClass(generateAdapter = true)
+data class MagiskApp(
+    val version: String,
+    val versionCode: String,
+    val link: String,
+    val note: String
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskConfig.kt b/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskConfig.kt
index 6fffed3df..e028d2273 100644
--- a/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskConfig.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskConfig.kt
@@ -1,32 +1,7 @@
 package com.topjohnwu.magisk.model.entity
 
-import com.squareup.moshi.Json
-import com.squareup.moshi.JsonClass
-
 data class MagiskConfig(
     val app: MagiskApp,
     val uninstaller: MagiskLink,
     val magisk: MagiskFlashable
 )
-
-@JsonClass(generateAdapter = true)
-data class MagiskApp(
-    val version: String,
-    val versionCode: String,
-    val link: String,
-    val note: String
-)
-
-@JsonClass(generateAdapter = true)
-data class MagiskLink(
-    val link: String
-)
-
-@JsonClass(generateAdapter = true)
-data class MagiskFlashable(
-    val version: String,
-    val versionCode: String,
-    val link: String,
-    val note: String,
-    @Json(name = "md5") val hash: String
-)
\ No newline at end of file
diff --git a/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskFlashable.kt b/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskFlashable.kt
new file mode 100644
index 000000000..bc7323021
--- /dev/null
+++ b/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskFlashable.kt
@@ -0,0 +1,13 @@
+package com.topjohnwu.magisk.model.entity
+
+import com.squareup.moshi.Json
+import com.squareup.moshi.JsonClass
+
+@JsonClass(generateAdapter = true)
+data class MagiskFlashable(
+    val version: String,
+    val versionCode: String,
+    val link: String,
+    val note: String,
+    @Json(name = "md5") val hash: String
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskLink.kt b/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskLink.kt
new file mode 100644
index 000000000..28df1788e
--- /dev/null
+++ b/app/src/main/java/com/topjohnwu/magisk/model/entity/MagiskLink.kt
@@ -0,0 +1,8 @@
+package com.topjohnwu.magisk.model.entity
+
+import com.squareup.moshi.JsonClass
+
+@JsonClass(generateAdapter = true)
+data class MagiskLink(
+    val link: String
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/topjohnwu/magisk/model/entity/Module.java b/app/src/main/java/com/topjohnwu/magisk/model/entity/OldModule.java
similarity index 73%
rename from app/src/main/java/com/topjohnwu/magisk/model/entity/Module.java
rename to app/src/main/java/com/topjohnwu/magisk/model/entity/OldModule.java
index ed04b2830..f4780c83b 100644
--- a/app/src/main/java/com/topjohnwu/magisk/model/entity/Module.java
+++ b/app/src/main/java/com/topjohnwu/magisk/model/entity/OldModule.java
@@ -6,16 +6,33 @@ import android.os.Parcelable;
 import com.topjohnwu.superuser.Shell;
 import com.topjohnwu.superuser.io.SuFile;
 
-public class Module extends BaseModule {
+public class OldModule extends BaseModule {
 
-    private SuFile mRemoveFile, mDisableFile, mUpdateFile;
-    private boolean mEnable, mRemove, mUpdated;
+    public static final Parcelable.Creator<OldModule> CREATOR = new Creator<OldModule>() {
+        /* It won't be used at any place */
+        @Override
+        public OldModule createFromParcel(Parcel source) {
+            return null;
+        }
 
-    public Module(String path) {
+        @Override
+        public OldModule[] newArray(int size) {
+            return null;
+        }
+    };
+    private final SuFile mRemoveFile;
+    private final SuFile mDisableFile;
+    private final SuFile mUpdateFile;
+    private final boolean mUpdated;
+    private boolean mEnable;
+    private boolean mRemove;
+
+    public OldModule(String path) {
 
         try {
             parseProps(Shell.su("dos2unix <  " + path + "/module.prop").exec().getOut());
-        } catch (NumberFormatException ignored) {}
+        } catch (NumberFormatException ignored) {
+        }
 
         mRemoveFile = new SuFile(path, "remove");
         mDisableFile = new SuFile(path, "disable");
@@ -35,19 +52,6 @@ public class Module extends BaseModule {
         mUpdated = mUpdateFile.exists();
     }
 
-    public static final Parcelable.Creator<Module> CREATOR = new Creator<Module>() {
-        /* It won't be used at any place */
-        @Override
-        public Module createFromParcel(Parcel source) {
-            return null;
-        }
-
-        @Override
-        public Module[] newArray(int size) {
-            return null;
-        }
-    };
-
     public void createDisableFile() {
         mEnable = !mDisableFile.createNewFile();
     }
diff --git a/app/src/main/java/com/topjohnwu/magisk/model/entity/recycler/ModuleRvItem.kt b/app/src/main/java/com/topjohnwu/magisk/model/entity/recycler/ModuleRvItem.kt
index 74c90a814..d4a722956 100644
--- a/app/src/main/java/com/topjohnwu/magisk/model/entity/recycler/ModuleRvItem.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/model/entity/recycler/ModuleRvItem.kt
@@ -6,12 +6,12 @@ import com.skoumal.teanity.databinding.ComparableRvItem
 import com.skoumal.teanity.extensions.addOnPropertyChangedCallback
 import com.skoumal.teanity.util.KObservableField
 import com.topjohnwu.magisk.R
-import com.topjohnwu.magisk.model.entity.Module
+import com.topjohnwu.magisk.model.entity.OldModule
 import com.topjohnwu.magisk.model.entity.Repo
 import com.topjohnwu.magisk.utils.get
 import com.topjohnwu.magisk.utils.toggle
 
-class ModuleRvItem(val item: Module) : ComparableRvItem<ModuleRvItem>() {
+class ModuleRvItem(val item: OldModule) : ComparableRvItem<ModuleRvItem>() {
 
     override val layoutRes: Int = R.layout.item_module
 
diff --git a/app/src/main/java/com/topjohnwu/magisk/ui/base/MagiskViewModel.kt b/app/src/main/java/com/topjohnwu/magisk/ui/base/MagiskViewModel.kt
index db7d6fc98..2b449bfb7 100644
--- a/app/src/main/java/com/topjohnwu/magisk/ui/base/MagiskViewModel.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/ui/base/MagiskViewModel.kt
@@ -14,7 +14,10 @@ import timber.log.Timber
 
 abstract class MagiskViewModel : LoadingViewModel(), Event.AutoListener {
 
+    @Deprecated("")
     override fun onEvent(event: Int) = Timber.i("Event of $event was not handled")
+
+    @Deprecated("")
     override fun getListeningEvents(): IntArray = intArrayOf()
 
     fun withView(action: Activity.() -> Unit) {
diff --git a/app/src/main/java/com/topjohnwu/magisk/ui/home/HomeViewModel.kt b/app/src/main/java/com/topjohnwu/magisk/ui/home/HomeViewModel.kt
index f5d16d2ab..9681027c1 100644
--- a/app/src/main/java/com/topjohnwu/magisk/ui/home/HomeViewModel.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/ui/home/HomeViewModel.kt
@@ -2,22 +2,24 @@ package com.topjohnwu.magisk.ui.home
 
 import android.content.res.Resources
 import com.skoumal.teanity.extensions.addOnPropertyChangedCallback
+import com.skoumal.teanity.extensions.doOnSubscribeUi
+import com.skoumal.teanity.extensions.subscribeK
 import com.skoumal.teanity.util.KObservableField
 import com.topjohnwu.magisk.*
+import com.topjohnwu.magisk.data.repository.MagiskRepository
 import com.topjohnwu.magisk.model.events.*
 import com.topjohnwu.magisk.model.observer.Observer
-import com.topjohnwu.magisk.tasks.CheckUpdates
 import com.topjohnwu.magisk.ui.base.MagiskViewModel
 import com.topjohnwu.magisk.utils.Event
 import com.topjohnwu.magisk.utils.ISafetyNetHelper
 import com.topjohnwu.magisk.utils.toggle
-import com.topjohnwu.net.Networking
 import com.topjohnwu.superuser.Shell
 
 
 class HomeViewModel(
     private val resources: Resources,
-    private val app: App
+    private val app: App,
+    private val magiskRepo: MagiskRepository
 ) : MagiskViewModel() {
 
     val isAdvancedExpanded = KObservableField(false)
@@ -163,20 +165,26 @@ class HomeViewModel(
     }
 
     fun refresh() {
-        state = State.LOADING
-        magiskState.value = MagiskState.LOADING
-        managerState.value = MagiskState.LOADING
-        Event.reset(this)
-        Config.remoteMagiskVersionString = null
-        Config.remoteMagiskVersionCode = -1
+        magiskRepo.fetchConfig()
+            .applyViewModel(this)
+            .doOnSubscribeUi {
+                magiskState.value = MagiskState.LOADING
+                managerState.value = MagiskState.LOADING
+            }
+            .subscribeK {
+                it.app.let {
+                    Config.remoteManagerVersionCode = it.versionCode.toIntOrNull() ?: -1
+                    Config.remoteManagerVersionString = it.version
+                }
+                it.magisk.let {
+                    Config.remoteMagiskVersionCode = it.versionCode.toIntOrNull() ?: -1
+                    Config.remoteMagiskVersionString = it.version
+                }
+                updateSelf()
+                ensureEnv()
+            }
 
         hasRoot.value = Shell.rootAccess()
-
-        if (Networking.checkNetworkStatus(app)) {
-            CheckUpdates.check()
-        } else {
-            state = State.LOADING_FAILED
-        }
     }
 
     private fun updateSelf() {
diff --git a/app/src/main/java/com/topjohnwu/magisk/ui/module/ModuleViewModel.kt b/app/src/main/java/com/topjohnwu/magisk/ui/module/ModuleViewModel.kt
index 031d67c3c..180b4091f 100644
--- a/app/src/main/java/com/topjohnwu/magisk/ui/module/ModuleViewModel.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/ui/module/ModuleViewModel.kt
@@ -11,7 +11,7 @@ import com.skoumal.teanity.util.KObservableField
 import com.topjohnwu.magisk.BR
 import com.topjohnwu.magisk.R
 import com.topjohnwu.magisk.data.database.RepoDatabaseHelper
-import com.topjohnwu.magisk.model.entity.Module
+import com.topjohnwu.magisk.model.entity.OldModule
 import com.topjohnwu.magisk.model.entity.Repo
 import com.topjohnwu.magisk.model.entity.recycler.ModuleRvItem
 import com.topjohnwu.magisk.model.entity.recycler.RepoRvItem
@@ -76,7 +76,7 @@ class ModuleViewModel(
         UpdateRepos().exec(true)
     }
 
-    private fun updateModules(result: Map<String, Module>) = result.values
+    private fun updateModules(result: Map<String, OldModule>) = result.values
         .map { ModuleRvItem(it) }
         .let { itemsInstalled.update(it) }
 
diff --git a/app/src/main/java/com/topjohnwu/magisk/utils/Utils.java b/app/src/main/java/com/topjohnwu/magisk/utils/Utils.java
index 83c686696..9ae151e8c 100644
--- a/app/src/main/java/com/topjohnwu/magisk/utils/Utils.java
+++ b/app/src/main/java/com/topjohnwu/magisk/utils/Utils.java
@@ -7,24 +7,16 @@ import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.content.res.Resources;
-import android.database.Cursor;
 import android.net.Uri;
-import android.provider.OpenableColumns;
 import android.widget.Toast;
 
-import androidx.work.Constraints;
-import androidx.work.ExistingPeriodicWorkPolicy;
-import androidx.work.NetworkType;
-import androidx.work.PeriodicWorkRequest;
-import androidx.work.WorkManager;
-
 import com.topjohnwu.magisk.App;
 import com.topjohnwu.magisk.BuildConfig;
 import com.topjohnwu.magisk.ClassMap;
 import com.topjohnwu.magisk.Config;
 import com.topjohnwu.magisk.Const;
 import com.topjohnwu.magisk.R;
-import com.topjohnwu.magisk.model.entity.Module;
+import com.topjohnwu.magisk.model.entity.OldModule;
 import com.topjohnwu.magisk.model.update.UpdateCheckService;
 import com.topjohnwu.net.Networking;
 import com.topjohnwu.superuser.Shell;
@@ -35,6 +27,12 @@ import java.util.Locale;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
+import androidx.work.Constraints;
+import androidx.work.ExistingPeriodicWorkPolicy;
+import androidx.work.NetworkType;
+import androidx.work.PeriodicWorkRequest;
+import androidx.work.WorkManager;
+
 public class Utils {
 
     public static void toast(CharSequence msg, int duration) {
@@ -93,13 +91,13 @@ public class Utils {
     public static void loadModules(boolean async) {
         Event.reset(Event.MODULE_LOAD_DONE);
         Runnable run = () -> {
-            Map<String, Module> moduleMap = new ValueSortedMap<>();
+            Map<String, OldModule> moduleMap = new ValueSortedMap<>();
             SuFile path = new SuFile(Const.MAGISK_PATH);
             SuFile[] modules = path.listFiles(
                     (file, name) -> !name.equals("lost+found") && !name.equals(".core"));
             for (SuFile file : modules) {
                 if (file.isFile()) continue;
-                Module module = new Module(Const.MAGISK_PATH + "/" + file.getName());
+                OldModule module = new OldModule(Const.MAGISK_PATH + "/" + file.getName());
                 moduleMap.put(module.getId(), module);
             }
             Event.trigger(Event.MODULE_LOAD_DONE, moduleMap);
diff --git a/app/src/main/java/com/topjohnwu/magisk/utils/XNetwork.kt b/app/src/main/java/com/topjohnwu/magisk/utils/XNetwork.kt
index 279161887..f6bbede0b 100644
--- a/app/src/main/java/com/topjohnwu/magisk/utils/XNetwork.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/utils/XNetwork.kt
@@ -5,7 +5,7 @@ import android.content.Intent
 import androidx.browser.customtabs.CustomTabsIntent
 import androidx.core.content.ContextCompat
 import androidx.core.net.toUri
-import com.topjohnwu.magisk.Config
+import com.topjohnwu.magisk.KConfig
 import com.topjohnwu.magisk.R
 import okhttp3.ResponseBody
 import java.io.File
@@ -20,7 +20,7 @@ fun ResponseBody.writeToFile(context: Context, fileName: String): File {
 
 fun ResponseBody.writeToString() = string()
 
-fun String.launch() = if (Config.useCustomTabs) {
+fun String.launch() = if (KConfig.useCustomTabs) {
     launchWithCustomTabs()
 } else {
     launchWithIntent()