diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
index ab75be24..f7a03145 100644
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -4,6 +4,13 @@
       <option name="ALLOW_TRAILING_COMMA" value="true" />
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>
+    <codeStyleSettings language="JSON">
+      <indentOptions>
+        <option name="INDENT_SIZE" value="4" />
+        <option name="USE_TAB_CHARACTER" value="true" />
+        <option name="SMART_TABS" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
     <codeStyleSettings language="XML">
       <option name="FORCE_REARRANGE_MODE" value="1" />
       <indentOptions>
diff --git a/.idea/dictionaries/Kuba.xml b/.idea/dictionaries/Kuba.xml
index aba38775..7959d9aa 100644
--- a/.idea/dictionaries/Kuba.xml
+++ b/.idea/dictionaries/Kuba.xml
@@ -5,6 +5,7 @@
       <w>ciasteczko</w>
       <w>csrf</w>
       <w>edziennik</w>
+      <w>eggfall</w>
       <w>elearning</w>
       <w>gson</w>
       <w>hebe</w>
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/App.kt b/app/src/main/java/pl/szczodrzynski/edziennik/App.kt
index 1dcea55b..4a68cac6 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/App.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/App.kt
@@ -12,6 +12,7 @@ import android.graphics.drawable.Icon
 import android.os.Build
 import android.provider.Settings
 import android.util.Log
+import android.widget.Toast
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.multidex.MultiDexApplication
 import androidx.work.Configuration
@@ -31,6 +32,7 @@ import kotlinx.coroutines.*
 import me.leolin.shortcutbadger.ShortcutBadger
 import okhttp3.OkHttpClient
 import org.greenrobot.eventbus.EventBus
+import pl.szczodrzynski.edziennik.config.AppData
 import pl.szczodrzynski.edziennik.config.Config
 import pl.szczodrzynski.edziennik.data.api.events.ProfileListEmptyEvent
 import pl.szczodrzynski.edziennik.data.api.szkolny.SzkolnyApi
@@ -48,18 +50,27 @@ import pl.szczodrzynski.edziennik.sync.SyncWorker
 import pl.szczodrzynski.edziennik.sync.UpdateWorker
 import pl.szczodrzynski.edziennik.ui.base.CrashActivity
 import pl.szczodrzynski.edziennik.ui.base.enums.NavTarget
-import pl.szczodrzynski.edziennik.utils.*
+import pl.szczodrzynski.edziennik.utils.DebugLogFormat
+import pl.szczodrzynski.edziennik.utils.PermissionChecker
+import pl.szczodrzynski.edziennik.utils.Themes
+import pl.szczodrzynski.edziennik.utils.Utils
 import pl.szczodrzynski.edziennik.utils.Utils.d
 import pl.szczodrzynski.edziennik.utils.managers.*
 import java.util.concurrent.TimeUnit
 import kotlin.coroutines.CoroutineContext
+import kotlin.system.exitProcess
 
 class App : MultiDexApplication(), Configuration.Provider, CoroutineScope {
     companion object {
         @Volatile
         lateinit var db: AppDb
+            private set
         lateinit var config: Config
+            // private set // for LabFragment
         lateinit var profile: Profile
+            private set
+        lateinit var data: AppData
+            private set
         val profileId
             get() = profile.id
 
@@ -90,6 +101,8 @@ class App : MultiDexApplication(), Configuration.Provider, CoroutineScope {
         get() = App.profile
     val profileId
         get() = App.profileId
+    val data
+        get() = App.data
 
     private val job = Job()
     override val coroutineContext: CoroutineContext
@@ -124,9 +137,6 @@ class App : MultiDexApplication(), Configuration.Provider, CoroutineScope {
         SSLProviderInstaller.enableSupportedTls(builder, enableCleartext = true)
 
         if (devMode) {
-            HyperLog.initialize(this)
-            HyperLog.setLogLevel(Log.VERBOSE)
-            HyperLog.setLogFormat(DebugLogFormat(this))
             if (enableChucker) {
                 val chuckerCollector = ChuckerCollector(this, true, RetentionManager.Period.ONE_HOUR)
                 val chuckerInterceptor = ChuckerInterceptor(this, chuckerCollector)
@@ -180,16 +190,24 @@ class App : MultiDexApplication(), Configuration.Provider, CoroutineScope {
         Iconics.init(applicationContext)
         Iconics.respectFontBoundsDefault = true
 
+        if (devMode) {
+            HyperLog.initialize(this)
+            HyperLog.setLogLevel(Log.VERBOSE)
+            HyperLog.setLogFormat(DebugLogFormat(this))
+        }
+
         // initialize companion object values
+        AppData.read(this)
         App.db = AppDb(this)
         App.config = Config(App.db)
-        App.profile = Profile(0, 0, LoginType.TEMPLATE, "")
         debugMode = BuildConfig.DEBUG
         devMode = config.devMode ?: debugMode
         enableChucker = config.enableChucker ?: devMode
 
         if (!profileLoadById(config.lastProfileId)) {
-            db.profileDao().firstId?.let { profileLoadById(it) }
+            val success = db.profileDao().firstId?.let { profileLoadById(it) }
+            if (success != true)
+                profileLoad(Profile(0, 0, LoginType.TEMPLATE, ""))
         }
 
         buildHttp()
@@ -381,10 +399,22 @@ class App : MultiDexApplication(), Configuration.Provider, CoroutineScope {
         }
     }
 
+    fun profileLoad(profile: Profile) {
+        App.profile = profile
+        App.config.lastProfileId = profile.id
+        try {
+            App.data = AppData.get(profile.loginStoreType)
+            d("App", "Loaded AppData: ${App.data}")
+        } catch (e: Exception) {
+            Log.e("App", "Cannot load AppData", e)
+            Toast.makeText(this, R.string.app_cannot_load_data, Toast.LENGTH_LONG).show()
+            exitProcess(0)
+        }
+    }
+
     private fun profileLoadById(profileId: Int): Boolean {
         db.profileDao().getByIdNow(profileId)?.also {
-            App.profile = it
-            App.config.lastProfileId = it.id
+            profileLoad(it)
             return true
         }
         return false
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/MainActivity.kt b/app/src/main/java/pl/szczodrzynski/edziennik/MainActivity.kt
index e0e6cd3e..2a819c7b 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/MainActivity.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/MainActivity.kt
@@ -42,7 +42,6 @@ import pl.szczodrzynski.edziennik.data.db.entity.Message
 import pl.szczodrzynski.edziennik.data.db.entity.Metadata.*
 import pl.szczodrzynski.edziennik.data.db.entity.Profile
 import pl.szczodrzynski.edziennik.data.db.enums.FeatureType
-import pl.szczodrzynski.edziennik.data.db.enums.LoginType
 import pl.szczodrzynski.edziennik.databinding.ActivitySzkolnyBinding
 import pl.szczodrzynski.edziennik.ext.*
 import pl.szczodrzynski.edziennik.sync.AppManagerDetectedEvent
@@ -427,7 +426,7 @@ class MainActivity : AppCompatActivity(), CoroutineScope {
                 launch {
                     withContext(Dispatchers.Default) {
                         app.db.profileDao().allNow.forEach { profile ->
-                            if (profile.loginStoreType != LoginType.LIBRUS)
+                            if (!profile.getAppData().uiConfig.enableMarkAsReadAnnouncements)
                                 app.db.metadataDao()
                                     .setAllSeenExceptMessagesAndAnnouncements(profile.id, true)
                             else
@@ -695,7 +694,7 @@ class MainActivity : AppCompatActivity(), CoroutineScope {
         }
         d(TAG, "}")
 
-        val intentProfileId = extras.getIntOrNull("profileId")
+        val intentProfileId = extras.getIntOrNull("profileId").takePositive()
         var intentNavTarget = extras.getIntOrNull("fragmentId").asNavTargetOrNull()
 
         if (extras?.containsKey("action") == true) {
@@ -743,8 +742,8 @@ class MainActivity : AppCompatActivity(), CoroutineScope {
         }
 
         if (extras?.containsKey("reloadProfileId") == true) {
-            val reloadProfileId = extras.getIntOrNull("reloadProfileId")
-            if (reloadProfileId == -1 || app.profile.id == reloadProfileId) {
+            val reloadProfileId = extras.getIntOrNull("reloadProfileId").takePositive()
+            if (reloadProfileId == null || app.profile.id == reloadProfileId) {
                 reloadTarget()
                 return
             }
@@ -767,7 +766,7 @@ class MainActivity : AppCompatActivity(), CoroutineScope {
                 navTarget = intentNavTarget,
                 args = extras,
             )
-            intentProfileId != -1 -> navigate(
+            intentProfileId != null -> navigate(
                 profileId = intentProfileId,
                 navTarget = intentNavTarget,
                 args = extras,
@@ -776,6 +775,7 @@ class MainActivity : AppCompatActivity(), CoroutineScope {
                 navTarget = intentNavTarget,
                 args = extras,
             )
+            navLoading -> navigate()
             else -> drawer.currentProfile = app.profile.id
         }
         navLoading = false
@@ -923,7 +923,8 @@ class MainActivity : AppCompatActivity(), CoroutineScope {
         }
 
         if (profileChanged) {
-            App.profile = profile
+            if (App.profileId != profile.id)
+                app.profileLoad(profile)
             MessagesFragment.pageSelection = -1
             // set new drawer items for this profile
             setDrawerItems()
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/AbstractConfig.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/AbstractConfig.kt
deleted file mode 100644
index d597a119..00000000
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/AbstractConfig.kt
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Copyright (c) Kuba Szczodrzyński 2019-11-27.
- */
-
-package pl.szczodrzynski.edziennik.config
-
-interface AbstractConfig {
-    fun set(key: String, value: String?)
-}
\ No newline at end of file
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/AppData.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/AppData.kt
new file mode 100644
index 00000000..6f72b82e
--- /dev/null
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/AppData.kt
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) Kuba Szczodrzyński 2022-10-21.
+ */
+
+package pl.szczodrzynski.edziennik.config
+
+import com.google.gson.Gson
+import com.google.gson.JsonObject
+import com.google.gson.JsonParser
+import com.google.gson.stream.JsonReader
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.R
+import pl.szczodrzynski.edziennik.data.db.enums.LoginType
+import pl.szczodrzynski.edziennik.ext.getJsonObject
+import pl.szczodrzynski.edziennik.ext.mergeWith
+import pl.szczodrzynski.edziennik.utils.managers.TextStylingManager.HtmlMode
+
+data class AppData(
+    val configOverrides: Map<String, String>,
+    val messagesConfig: MessagesConfig,
+    val uiConfig: UIConfig,
+    val eventTypes: List<EventType>,
+) {
+    companion object {
+        private var data: JsonObject? = null
+        private val appData = mutableMapOf<LoginType, AppData>()
+
+        fun read(app: App) {
+            val res = app.resources.openRawResource(R.raw.app_data)
+            data = JsonParser.parseReader(JsonReader(res.reader())).asJsonObject
+        }
+
+        fun get(loginType: LoginType): AppData {
+            if (loginType in appData)
+                return appData.getValue(loginType)
+            val json = data?.getJsonObject("base")?.deepCopy()
+                ?: throw NoSuchElementException("Base data not found")
+            val overrides = setOf(loginType, loginType.schoolType)
+            for (overrideType in overrides) {
+                val override = data?.getJsonObject(overrideType.name.lowercase()) ?: continue
+                json.mergeWith(override)
+            }
+            val value = Gson().fromJson(json, AppData::class.java)
+            appData[loginType] = value
+            return value
+        }
+    }
+
+    data class MessagesConfig(
+        val subjectLength: Int?,
+        val bodyLength: Int?,
+        val textStyling: Boolean,
+        val syncRecipientList: Boolean,
+        val htmlMode: HtmlMode,
+        val needsReadStatus: Boolean,
+    )
+
+    data class UIConfig(
+        val lessonHeight: Int,
+        val enableMarkAsReadAnnouncements: Boolean,
+        val enableNoticePoints: Boolean,
+    )
+
+    data class EventType(
+        val id: Int,
+        val color: String,
+        val name: String,
+    )
+}
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/BaseConfig.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/BaseConfig.kt
new file mode 100644
index 00000000..ac3a8af9
--- /dev/null
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/BaseConfig.kt
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) Kuba Szczodrzyński 2019-11-27.
+ */
+
+package pl.szczodrzynski.edziennik.config
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+import pl.szczodrzynski.edziennik.config.db.ConfigEntry
+import pl.szczodrzynski.edziennik.data.db.AppDb
+import pl.szczodrzynski.edziennik.ext.takePositive
+import kotlin.coroutines.CoroutineContext
+
+abstract class BaseConfig(
+    val db: AppDb,
+    val profileId: Int? = null,
+    protected var entries: List<ConfigEntry>? = null,
+) : CoroutineScope {
+
+    private val job = Job()
+    override val coroutineContext: CoroutineContext
+        get() = job + Dispatchers.Default
+
+    val values = hashMapOf<String, String?>()
+
+    init {
+        if (entries == null)
+            entries = db.configDao().getAllNow()
+        values.clear()
+        for ((profileId, key, value) in entries!!) {
+            if (profileId.takePositive() != this.profileId)
+                continue
+            values[key] = value
+        }
+    }
+
+    fun set(key: String, value: String?) {
+        values[key] = value
+        launch(Dispatchers.IO) {
+            db.configDao().add(ConfigEntry(profileId ?: -1, key, value))
+        }
+    }
+}
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/Config.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/Config.kt
index e29d93ad..f065a97e 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/Config.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/Config.kt
@@ -5,151 +5,59 @@
 package pl.szczodrzynski.edziennik.config
 
 import com.google.gson.JsonObject
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.launch
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.BuildConfig
-import pl.szczodrzynski.edziennik.config.db.ConfigEntry
 import pl.szczodrzynski.edziennik.config.utils.*
 import pl.szczodrzynski.edziennik.data.api.szkolny.response.Update
 import pl.szczodrzynski.edziennik.data.db.AppDb
-import kotlin.coroutines.CoroutineContext
 
-class Config(val db: AppDb) : CoroutineScope, AbstractConfig {
+@Suppress("RemoveExplicitTypeArguments")
+class Config(db: AppDb) : BaseConfig(db) {
     companion object {
         const val DATA_VERSION = 12
     }
 
-    private val job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Default
-
-    val values: HashMap<String, String?> = hashMapOf()
+    private val profileConfigs: HashMap<Int, ProfileConfig> = hashMapOf()
 
     val ui by lazy { ConfigUI(this) }
     val sync by lazy { ConfigSync(this) }
     val timetable by lazy { ConfigTimetable(this) }
     val grades by lazy { ConfigGrades(this) }
 
-    private var mDataVersion: Int? = null
-    var dataVersion: Int
-        get() { mDataVersion = mDataVersion ?: values.get("dataVersion", 0); return mDataVersion ?: 0 }
-        set(value) { set("dataVersion", value); mDataVersion = value }
+    var dataVersion by config<Int>(0)
+    var hash by config<String>("")
 
-    private var mHash: String? = null
-    var hash: String
-        get() { mHash = mHash ?: values.get("hash", ""); return mHash ?: "" }
-        set(value) { set("hash", value); mHash = value }
+    var lastProfileId by config<Int>(0)
+    var loginFinished by config<Boolean>(false)
+    var privacyPolicyAccepted by config<Boolean>(false)
+    var update by config<Update?>(null)
+    var updatesChannel by config<String>("release")
 
-    private var mLastProfileId: Int? = null
-    var lastProfileId: Int
-        get() { mLastProfileId = mLastProfileId ?: values.get("lastProfileId", 0); return mLastProfileId ?: 0 }
-        set(value) { set("lastProfileId", value); mLastProfileId = value }
+    var devMode by config<Boolean?>(null)
+    var devModePassword by config<String?>(null)
+    var enableChucker by config<Boolean?>(null)
 
-    private var mUpdatesChannel: String? = null
-    var updatesChannel: String
-        get() { mUpdatesChannel = mUpdatesChannel ?: values.get("updatesChannel", "release"); return mUpdatesChannel ?: "release" }
-        set(value) { set("updatesChannel", value); mUpdatesChannel = value }
-    private var mUpdate: Update? = null
-    var update: Update?
-        get() { mUpdate = mUpdate ?: values.get("update", null as Update?); return mUpdate ?: null as Update? }
-        set(value) { set("update", value); mUpdate = value }
+    var apiAvailabilityCheck by config<Boolean>(true)
+    var apiInvalidCert by config<String?>(null)
+    var appInstalledTime by config<Long>(0L)
+    var appRateSnackbarTime by config<Long>(0L)
+    var appVersion by config<Int>(BuildConfig.VERSION_CODE)
+    var validation by config<String?>(null, "buildValidation")
 
-    private var mAppVersion: Int? = null
-    var appVersion: Int
-        get() { mAppVersion = mAppVersion ?: values.get("appVersion", BuildConfig.VERSION_CODE); return mAppVersion ?: BuildConfig.VERSION_CODE }
-        set(value) { set("appVersion", value); mAppVersion = value }
+    var archiverEnabled by config<Boolean>(true)
+    var runSync by config<Boolean>(false)
+    var widgetConfigs by config<JsonObject> { JsonObject() }
 
-    private var mLoginFinished: Boolean? = null
-    var loginFinished: Boolean
-        get() { mLoginFinished = mLoginFinished ?: values.get("loginFinished", false); return mLoginFinished ?: false }
-        set(value) { set("loginFinished", value); mLoginFinished = value }
-
-    private var mPrivacyPolicyAccepted: Boolean? = null
-    var privacyPolicyAccepted: Boolean
-        get() { mPrivacyPolicyAccepted = mPrivacyPolicyAccepted ?: values.get("privacyPolicyAccepted", false); return mPrivacyPolicyAccepted ?: false }
-        set(value) { set("privacyPolicyAccepted", value); mPrivacyPolicyAccepted = value }
-
-    private var mDevMode: Boolean? = null
-    var devMode: Boolean?
-        get() { mDevMode = mDevMode ?: values.getBooleanOrNull("debugMode"); return mDevMode }
-        set(value) { set("debugMode", value?.toString()); mDevMode = value }
-
-    private var mEnableChucker: Boolean? = null
-    var enableChucker: Boolean?
-        get() { mEnableChucker = mEnableChucker ?: values.getBooleanOrNull("enableChucker"); return mEnableChucker }
-        set(value) { set("enableChucker", value?.toString()); mEnableChucker = value }
-
-    private var mDevModePassword: String? = null
-    var devModePassword: String?
-        get() { mDevModePassword = mDevModePassword ?: values.get("devModePassword", null as String?); return mDevModePassword }
-        set(value) { set("devModePassword", value); mDevModePassword = value }
-
-    private var mAppInstalledTime: Long? = null
-    var appInstalledTime: Long
-        get() { mAppInstalledTime = mAppInstalledTime ?: values.get("appInstalledTime", 0L); return mAppInstalledTime ?: 0L }
-        set(value) { set("appInstalledTime", value); mAppInstalledTime = value }
-
-    private var mAppRateSnackbarTime: Long? = null
-    var appRateSnackbarTime: Long
-        get() { mAppRateSnackbarTime = mAppRateSnackbarTime ?: values.get("appRateSnackbarTime", 0L); return mAppRateSnackbarTime ?: 0L }
-        set(value) { set("appRateSnackbarTime", value); mAppRateSnackbarTime = value }
-
-    private var mRunSync: Boolean? = null
-    var runSync: Boolean
-        get() { mRunSync = mRunSync ?: values.get("runSync", false); return mRunSync ?: false }
-        set(value) { set("runSync", value); mRunSync = value }
-
-    private var mWidgetConfigs: JsonObject? = null
-    var widgetConfigs: JsonObject
-        get() { mWidgetConfigs = mWidgetConfigs ?: values.get("widgetConfigs", JsonObject()); return mWidgetConfigs ?: JsonObject() }
-        set(value) { set("widgetConfigs", value); mWidgetConfigs = value }
-
-    private var mArchiverEnabled: Boolean? = null
-    var archiverEnabled: Boolean
-        get() { mArchiverEnabled = mArchiverEnabled ?: values.get("archiverEnabled", true); return mArchiverEnabled ?: true }
-        set(value) { set("archiverEnabled", value); mArchiverEnabled = value }
-
-    private var mValidation: String? = null
-    var validation: String?
-        get() { mValidation = mValidation ?: values["buildValidation"]; return mValidation }
-        set(value) { set("buildValidation", value); mValidation = value }
-
-    private var mApiInvalidCert: String? = null
-    var apiInvalidCert: String?
-        get() { mApiInvalidCert = mApiInvalidCert ?: values["apiInvalidCert"]; return mApiInvalidCert }
-        set(value) { set("apiInvalidCert", value); mApiInvalidCert = value }
-
-    private var mApiAvailabilityCheck: Boolean? = null
-    var apiAvailabilityCheck: Boolean
-        get() { mApiAvailabilityCheck = mApiAvailabilityCheck ?: values.get("apiAvailabilityCheck", true); return mApiAvailabilityCheck ?: true }
-        set(value) { set("apiAvailabilityCheck", value); mApiAvailabilityCheck = value }
-
-    private var rawEntries: List<ConfigEntry> = db.configDao().getAllNow()
-    private val profileConfigs: HashMap<Int, ProfileConfig> = hashMapOf()
-    init {
-        rawEntries.toHashMap(-1, values)
-    }
     fun migrate(app: App) {
         if (dataVersion < DATA_VERSION)
             ConfigMigration(app, this)
     }
+
     fun getFor(profileId: Int): ProfileConfig {
-        return profileConfigs[profileId] ?: ProfileConfig(db, profileId, db.configDao().getAllNow(profileId)).also {
+        return profileConfigs[profileId] ?: ProfileConfig(db, profileId, entries).also {
             profileConfigs[profileId] = it
         }
     }
+
     fun forProfile() = getFor(App.profileId)
-
-    fun setProfile(profileId: Int) {
-    }
-
-    override fun set(key: String, value: String?) {
-        values[key] = value
-        launch {
-            db.configDao().add(ConfigEntry(-1, key, value))
-        }
-    }
 }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigGrades.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigGrades.kt
index 267ec322..a28dcc3d 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigGrades.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigGrades.kt
@@ -4,13 +4,10 @@
 
 package pl.szczodrzynski.edziennik.config
 
-import pl.szczodrzynski.edziennik.config.utils.get
-import pl.szczodrzynski.edziennik.config.utils.set
-import pl.szczodrzynski.edziennik.utils.managers.GradesManager
+import pl.szczodrzynski.edziennik.utils.managers.GradesManager.Companion.ORDER_BY_DATE_DESC
 
-class ConfigGrades(private val config: Config) {
-    private var mOrderBy: Int? = null
-    var orderBy: Int
-        get() { mOrderBy = mOrderBy ?: config.values.get("gradesOrderBy", 0); return mOrderBy ?: GradesManager.ORDER_BY_DATE_DESC }
-        set(value) { config.set("gradesOrderBy", value); mOrderBy = value }
+@Suppress("RemoveExplicitTypeArguments")
+class ConfigGrades(base: Config) {
+
+    var orderBy by base.config<Int>("gradesOrderBy", ORDER_BY_DATE_DESC)
 }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigSync.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigSync.kt
index 387e5cf7..6688838b 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigSync.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigSync.kt
@@ -4,139 +4,53 @@
 
 package pl.szczodrzynski.edziennik.config
 
-import com.google.gson.Gson
-import com.google.gson.reflect.TypeToken
 import pl.szczodrzynski.edziennik.BuildConfig
-import pl.szczodrzynski.edziennik.config.utils.get
-import pl.szczodrzynski.edziennik.config.utils.getIntList
-import pl.szczodrzynski.edziennik.config.utils.set
-import pl.szczodrzynski.edziennik.config.utils.setMap
 import pl.szczodrzynski.edziennik.data.api.szkolny.response.RegisterAvailabilityStatus
+import pl.szczodrzynski.edziennik.ext.HOUR
 import pl.szczodrzynski.edziennik.utils.models.Time
 
-class ConfigSync(private val config: Config) {
-    private val gson = Gson()
+@Suppress("RemoveExplicitTypeArguments")
+class ConfigSync(base: Config) {
 
-    private var mDontShowAppManagerDialog: Boolean? = null
-    var dontShowAppManagerDialog: Boolean
-        get() { mDontShowAppManagerDialog = mDontShowAppManagerDialog ?: config.values.get("dontShowAppManagerDialog", false); return mDontShowAppManagerDialog ?: false }
-        set(value) { config.set("dontShowAppManagerDialog", value); mDontShowAppManagerDialog = value }
+    var enabled by base.config<Boolean>("syncEnabled", true)
+    var interval by base.config<Int>("syncInterval", 1 * HOUR.toInt())
+    var onlyWifi by base.config<Boolean>("syncOnlyWifi", false)
 
-    private var mSyncEnabled: Boolean? = null
-    var enabled: Boolean
-        get() { mSyncEnabled = mSyncEnabled ?: config.values.get("syncEnabled", true); return mSyncEnabled ?: true }
-        set(value) { config.set("syncEnabled", value); mSyncEnabled = value }
+    var dontShowAppManagerDialog by base.config<Boolean>(false)
+    var lastAppSync by base.config<Long>(0L)
+    var notifyAboutUpdates by base.config<Boolean>(true)
+    var webPushEnabled by base.config<Boolean>(true)
 
-    private var mWebPushEnabled: Boolean? = null
-    var webPushEnabled: Boolean
-        get() { mWebPushEnabled = mWebPushEnabled ?: config.values.get("webPushEnabled", true); return mWebPushEnabled ?: true }
-        set(value) { config.set("webPushEnabled", value); mWebPushEnabled = value }
+    // Quiet Hours
+    var quietHoursEnabled by base.config<Boolean>(false)
+    var quietHoursStart by base.config<Time?>(null)
+    var quietHoursEnd by base.config<Time?>(null)
+    var quietDuringLessons by base.config<Boolean>(false)
 
-    private var mSyncOnlyWifi: Boolean? = null
-    var onlyWifi: Boolean
-        get() { mSyncOnlyWifi = mSyncOnlyWifi ?: config.values.get("syncOnlyWifi", false); return mSyncOnlyWifi ?: notifyAboutUpdates }
-        set(value) { config.set("syncOnlyWifi", value); mSyncOnlyWifi = value }
+    // FCM Tokens
+    var tokenApp by base.config<String?>(null)
+    var tokenMobidziennik by base.config<String?>(null)
+    var tokenLibrus by base.config<String?>(null)
+    var tokenVulcan by base.config<String?>(null)
+    var tokenVulcanHebe by base.config<String?>(null)
 
-    private var mSyncInterval: Int? = null
-    var interval: Int
-        get() { mSyncInterval = mSyncInterval ?: config.values.get("syncInterval", 60*60); return mSyncInterval ?: 60*60 }
-        set(value) { config.set("syncInterval", value); mSyncInterval = value }
+    var tokenMobidziennikList by base.config<List<Int>> { listOf() }
+    var tokenLibrusList by base.config<List<Int>> { listOf() }
+    var tokenVulcanList by base.config<List<Int>> { listOf() }
+    var tokenVulcanHebeList by base.config<List<Int>> { listOf() }
 
-    private var mNotifyAboutUpdates: Boolean? = null
-    var notifyAboutUpdates: Boolean
-        get() { mNotifyAboutUpdates = mNotifyAboutUpdates ?: config.values.get("notifyAboutUpdates", true); return mNotifyAboutUpdates ?: true }
-        set(value) { config.set("notifyAboutUpdates", value); mNotifyAboutUpdates = value }
+    // Register Availability
+    private var registerAvailabilityMap by base.config<Map<String, RegisterAvailabilityStatus>>("registerAvailability") { mapOf() }
+    private var registerAvailabilityFlavor by base.config<String?>(null)
 
-    private var mLastAppSync: Long? = null
-    var lastAppSync: Long
-        get() { mLastAppSync = mLastAppSync ?: config.values.get("lastAppSync", 0L); return mLastAppSync ?: 0L }
-        set(value) { config.set("lastAppSync", value); mLastAppSync = value }
-
-    /*     ____        _      _     _
-          / __ \      (_)    | |   | |
-         | |  | |_   _ _  ___| |_  | |__   ___  _   _ _ __ ___
-         | |  | | | | | |/ _ \ __| | '_ \ / _ \| | | | '__/ __|
-         | |__| | |_| | |  __/ |_  | | | | (_) | |_| | |  \__ \
-          \___\_\\__,_|_|\___|\__| |_| |_|\___/ \__,_|_|  |__*/
-    private var mQuietHoursEnabled: Boolean? = null
-    var quietHoursEnabled: Boolean
-        get() { mQuietHoursEnabled = mQuietHoursEnabled ?: config.values.get("quietHoursEnabled", false); return mQuietHoursEnabled ?: false }
-        set(value) { config.set("quietHoursEnabled", value); mQuietHoursEnabled = value }
-
-    private var mQuietHoursStart: Time? = null
-    var quietHoursStart: Time?
-        get() { mQuietHoursStart = mQuietHoursStart ?: config.values.get("quietHoursStart", null as Time?); return mQuietHoursStart }
-        set(value) { config.set("quietHoursStart", value); mQuietHoursStart = value }
-
-    private var mQuietHoursEnd: Time? = null
-    var quietHoursEnd: Time?
-        get() { mQuietHoursEnd = mQuietHoursEnd ?: config.values.get("quietHoursEnd", null as Time?); return mQuietHoursEnd }
-        set(value) { config.set("quietHoursEnd", value); mQuietHoursEnd = value }
-
-    private var mQuietDuringLessons: Boolean? = null
-    var quietDuringLessons: Boolean
-        get() { mQuietDuringLessons = mQuietDuringLessons ?: config.values.get("quietDuringLessons", false); return mQuietDuringLessons ?: false }
-        set(value) { config.set("quietDuringLessons", value); mQuietDuringLessons = value }
-
-    /*    ______ _____ __  __   _______    _
-         |  ____/ ____|  \/  | |__   __|  | |
-         | |__ | |    | \  / |    | | ___ | | _____ _ __  ___
-         |  __|| |    | |\/| |    | |/ _ \| |/ / _ \ '_ \/ __|
-         | |   | |____| |  | |    | | (_) |   <  __/ | | \__ \
-         |_|    \_____|_|  |_|    |_|\___/|_|\_\___|_| |_|__*/
-    private var mTokenApp: String? = null
-    var tokenApp: String?
-        get() { mTokenApp = mTokenApp ?: config.values.get("tokenApp", null as String?); return mTokenApp }
-        set(value) { config.set("tokenApp", value); mTokenApp = value }
-    private var mTokenMobidziennik: String? = null
-    var tokenMobidziennik: String?
-        get() { mTokenMobidziennik = mTokenMobidziennik ?: config.values.get("tokenMobidziennik", null as String?); return mTokenMobidziennik }
-        set(value) { config.set("tokenMobidziennik", value); mTokenMobidziennik = value }
-    private var mTokenLibrus: String? = null
-    var tokenLibrus: String?
-        get() { mTokenLibrus = mTokenLibrus ?: config.values.get("tokenLibrus", null as String?); return mTokenLibrus }
-        set(value) { config.set("tokenLibrus", value); mTokenLibrus = value }
-    private var mTokenVulcan: String? = null
-    var tokenVulcan: String?
-        get() { mTokenVulcan = mTokenVulcan ?: config.values.get("tokenVulcan", null as String?); return mTokenVulcan }
-        set(value) { config.set("tokenVulcan", value); mTokenVulcan = value }
-    private var mTokenVulcanHebe: String? = null
-    var tokenVulcanHebe: String?
-        get() { mTokenVulcanHebe = mTokenVulcanHebe ?: config.values.get("tokenVulcanHebe", null as String?); return mTokenVulcanHebe }
-        set(value) { config.set("tokenVulcanHebe", value); mTokenVulcanHebe = value }
-
-    private var mTokenMobidziennikList: List<Int>? = null
-    var tokenMobidziennikList: List<Int>
-        get() { mTokenMobidziennikList = mTokenMobidziennikList ?: config.values.getIntList("tokenMobidziennikList", listOf()); return mTokenMobidziennikList ?: listOf() }
-        set(value) { config.set("tokenMobidziennikList", value); mTokenMobidziennikList = value }
-    private var mTokenLibrusList: List<Int>? = null
-    var tokenLibrusList: List<Int>
-        get() { mTokenLibrusList = mTokenLibrusList ?: config.values.getIntList("tokenLibrusList", listOf()); return mTokenLibrusList ?: listOf() }
-        set(value) { config.set("tokenLibrusList", value); mTokenLibrusList = value }
-    private var mTokenVulcanList: List<Int>? = null
-    var tokenVulcanList: List<Int>
-        get() { mTokenVulcanList = mTokenVulcanList ?: config.values.getIntList("tokenVulcanList", listOf()); return mTokenVulcanList ?: listOf() }
-        set(value) { config.set("tokenVulcanList", value); mTokenVulcanList = value }
-    private var mTokenVulcanHebeList: List<Int>? = null
-    var tokenVulcanHebeList: List<Int>
-        get() { mTokenVulcanHebeList = mTokenVulcanHebeList ?: config.values.getIntList("tokenVulcanHebeList", listOf()); return mTokenVulcanHebeList ?: listOf() }
-        set(value) { config.set("tokenVulcanHebeList", value); mTokenVulcanHebeList = value }
-
-    private var mRegisterAvailability: Map<String, RegisterAvailabilityStatus>? = null
     var registerAvailability: Map<String, RegisterAvailabilityStatus>
         get() {
-            val flavor = config.values.get("registerAvailabilityFlavor", null as String?)
-            if (BuildConfig.FLAVOR != flavor)
+            if (BuildConfig.FLAVOR != registerAvailabilityFlavor)
                 return mapOf()
-
-            mRegisterAvailability = mRegisterAvailability ?: config.values.get("registerAvailability", null as String?)?.let { it ->
-                gson.fromJson(it, object: TypeToken<Map<String, RegisterAvailabilityStatus>>(){}.type)
-            }
-            return mRegisterAvailability ?: mapOf()
+            return registerAvailabilityMap
         }
         set(value) {
-            config.setMap("registerAvailability", value)
-            config.set("registerAvailabilityFlavor", BuildConfig.FLAVOR)
-            mRegisterAvailability = value
+            registerAvailabilityMap = value
+            registerAvailabilityFlavor = BuildConfig.FLAVOR
         }
 }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigTimetable.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigTimetable.kt
index 2418f1d3..9f60534b 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigTimetable.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigTimetable.kt
@@ -4,23 +4,12 @@
 
 package pl.szczodrzynski.edziennik.config
 
-import pl.szczodrzynski.edziennik.config.utils.get
-import pl.szczodrzynski.edziennik.config.utils.set
 import pl.szczodrzynski.edziennik.utils.models.Time
 
-class ConfigTimetable(private val config: Config) {
-    private var mBellSyncMultiplier: Int? = null
-    var bellSyncMultiplier: Int
-        get() { mBellSyncMultiplier = mBellSyncMultiplier ?: config.values.get("bellSyncMultiplier", 0); return mBellSyncMultiplier ?: 0 }
-        set(value) { config.set("bellSyncMultiplier", value); mBellSyncMultiplier = value }
+@Suppress("RemoveExplicitTypeArguments")
+class ConfigTimetable(base: Config) {
 
-    private var mBellSyncDiff: Time? = null
-    var bellSyncDiff: Time?
-        get() { mBellSyncDiff = mBellSyncDiff ?: config.values.get("bellSyncDiff", null as Time?); return mBellSyncDiff }
-        set(value) { config.set("bellSyncDiff", value); mBellSyncDiff = value }
-
-    private var mCountInSeconds: Boolean? = null
-    var countInSeconds: Boolean
-        get() { mCountInSeconds = mCountInSeconds ?: config.values.get("countInSeconds", false); return mCountInSeconds ?: false }
-        set(value) { config.set("countInSeconds", value); mCountInSeconds = value }
-}
\ No newline at end of file
+    var bellSyncMultiplier by base.config<Int>(0)
+    var bellSyncDiff by base.config<Time?>(null)
+    var countInSeconds by base.config<Boolean>(false)
+}
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigUI.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigUI.kt
index a937ed28..a8a6ba33 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigUI.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/ConfigUI.kt
@@ -4,60 +4,32 @@
 
 package pl.szczodrzynski.edziennik.config
 
-import pl.szczodrzynski.edziennik.config.utils.get
-import pl.szczodrzynski.edziennik.config.utils.getIntList
-import pl.szczodrzynski.edziennik.config.utils.set
-import pl.szczodrzynski.edziennik.ext.asNavTargetOrNull
 import pl.szczodrzynski.edziennik.ui.base.enums.NavTarget
 
-class ConfigUI(private val config: Config) {
-    private var mTheme: Int? = null
-    var theme: Int
-        get() { mTheme = mTheme ?: config.values.get("theme", 1); return mTheme ?: 1 }
-        set(value) { config.set("theme", value); mTheme = value }
+@Suppress("RemoveExplicitTypeArguments")
+class ConfigUI(base: Config) {
 
-    private var mLanguage: String? = null
-    var language: String?
-        get() { mLanguage = mLanguage ?: config.values.get("language", null as String?); return mLanguage }
-        set(value) { config.set("language", value); mLanguage = value }
+    var theme by base.config<Int>(1)
+    var language by base.config<String?>(null)
 
-    private var mHeaderBackground: String? = null
-    var headerBackground: String?
-        get() { mHeaderBackground = mHeaderBackground ?: config.values.get("headerBg", null as String?); return mHeaderBackground }
-        set(value) { config.set("headerBg", value); mHeaderBackground = value }
+    var appBackground by base.config<String?>("appBg", null)
+    var headerBackground by base.config<String?>("headerBg", null)
 
-    private var mAppBackground: String? = null
-    var appBackground: String?
-        get() { mAppBackground = mAppBackground ?: config.values.get("appBg", null as String?); return mAppBackground }
-        set(value) { config.set("appBg", value); mAppBackground = value }
+    var miniMenuVisible by base.config<Boolean>(false)
+    var miniMenuButtons by base.config<Set<NavTarget>> {
+        setOf(
+            NavTarget.HOME,
+            NavTarget.TIMETABLE,
+            NavTarget.AGENDA,
+            NavTarget.GRADES,
+            NavTarget.MESSAGES,
+            NavTarget.HOMEWORK,
+            NavTarget.SETTINGS
+        )
+    }
+    var openDrawerOnBackPressed by base.config<Boolean>(false)
 
-    private var mMiniMenuVisible: Boolean? = null
-    var miniMenuVisible: Boolean
-        get() { mMiniMenuVisible = mMiniMenuVisible ?: config.values.get("miniMenuVisible", false); return mMiniMenuVisible ?: false }
-        set(value) { config.set("miniMenuVisible", value); mMiniMenuVisible = value }
-
-    private var mMiniMenuButtons: Set<NavTarget>? = null
-    var miniMenuButtons: Set<NavTarget>
-        get() { mMiniMenuButtons = mMiniMenuButtons ?: config.values.getIntList("miniMenuButtons", listOf())?.mapNotNull { it.asNavTargetOrNull() }?.toSet(); return mMiniMenuButtons ?: setOf() }
-        set(value) { config.set("miniMenuButtons", value.map { it.id }); mMiniMenuButtons = value }
-
-    private var mOpenDrawerOnBackPressed: Boolean? = null
-    var openDrawerOnBackPressed: Boolean
-        get() { mOpenDrawerOnBackPressed = mOpenDrawerOnBackPressed ?: config.values.get("openDrawerOnBackPressed", false); return mOpenDrawerOnBackPressed ?: false }
-        set(value) { config.set("openDrawerOnBackPressed", value); mOpenDrawerOnBackPressed = value }
-
-    private var mSnowfall: Boolean? = null
-    var snowfall: Boolean
-        get() { mSnowfall = mSnowfall ?: config.values.get("snowfall", false); return mSnowfall ?: false }
-        set(value) { config.set("snowfall", value); mSnowfall = value }
-
-    private var mEggfall: Boolean? = null
-    var eggfall: Boolean
-        get() { mEggfall = mEggfall ?: config.values.get("eggfall", false); return mEggfall ?: false }
-        set(value) { config.set("eggfall", value); mEggfall = value }
-
-    private var mBottomSheetOpened: Boolean? = null
-    var bottomSheetOpened: Boolean
-        get() { mBottomSheetOpened = mBottomSheetOpened ?: config.values.get("bottomSheetOpened", false); return mBottomSheetOpened ?: false }
-        set(value) { config.set("bottomSheetOpened", value); mBottomSheetOpened = value }
+    var bottomSheetOpened by base.config<Boolean>(false)
+    var snowfall by base.config<Boolean>(false)
+    var eggfall by base.config<Boolean>(false)
 }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/DelegateConfig.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/DelegateConfig.kt
new file mode 100644
index 00000000..00ede071
--- /dev/null
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/DelegateConfig.kt
@@ -0,0 +1,175 @@
+/*
+ * Copyright (c) Kuba Szczodrzyński 2022-10-21.
+ */
+
+package pl.szczodrzynski.edziennik.config
+
+import com.google.gson.Gson
+import com.google.gson.JsonArray
+import com.google.gson.JsonObject
+import com.google.gson.reflect.TypeToken
+import pl.szczodrzynski.edziennik.ext.*
+import pl.szczodrzynski.edziennik.utils.models.Date
+import pl.szczodrzynski.edziennik.utils.models.Time
+import java.lang.reflect.ParameterizedType
+import java.lang.reflect.WildcardType
+import kotlin.reflect.KProperty
+
+private val gson = Gson()
+
+inline fun <reified T> BaseConfig.config(name: String? = null, noinline default: () -> T) = ConfigDelegate(
+    config = this,
+    type = T::class.java,
+    nullable = null is T,
+    typeToken = object : TypeToken<T>() {},
+    defaultFunc = default,
+    defaultValue = null,
+    fieldName = name,
+)
+
+inline fun <reified T> BaseConfig.config(default: T) = ConfigDelegate(
+    config = this,
+    type = T::class.java,
+    nullable = null is T,
+    typeToken = object : TypeToken<T>() {},
+    defaultFunc = null,
+    defaultValue = default,
+    fieldName = null,
+)
+
+inline fun <reified T> BaseConfig.config(name: String? = null, default: T) = ConfigDelegate(
+    config = this,
+    type = T::class.java,
+    nullable = null is T,
+    typeToken = object : TypeToken<T>() {},
+    defaultFunc = null,
+    defaultValue = default,
+    fieldName = name,
+)
+
+@Suppress("UNCHECKED_CAST")
+class ConfigDelegate<T>(
+    private val config: BaseConfig,
+    private val type: Class<T>,
+    private val nullable: Boolean,
+    private val typeToken: TypeToken<T>,
+    private val defaultFunc: (() -> T)?,
+    private val defaultValue: T?,
+    private val fieldName: String?,
+) {
+    private var value: T? = null
+    private var isInitialized = false
+
+    private fun getDefault(): T = when {
+        defaultFunc != null -> defaultFunc.invoke()
+        else -> defaultValue as T
+    }
+
+    private fun getGenericType(index: Int = 0): Class<*> {
+        val parameterizedType = typeToken.type as ParameterizedType
+        val typeArgument = parameterizedType.actualTypeArguments[index] as WildcardType
+        return typeArgument.upperBounds[0] as Class<*>
+    }
+
+    operator fun setValue(_thisRef: Any, property: KProperty<*>, newValue: T) {
+        value = newValue
+        isInitialized = true
+        config.set(fieldName ?: property.name, serialize(newValue)?.toString())
+    }
+
+    operator fun getValue(_thisRef: Any, property: KProperty<*>): T {
+        if (isInitialized)
+            return value as T
+        val key = fieldName ?: property.name
+
+        if (key !in config.values) {
+            value = getDefault()
+            isInitialized = true
+            return value as T
+        }
+        val str = config.values[key]
+
+        value = if (str == null && nullable)
+            null as T
+        else if (str == null)
+            getDefault()
+        else
+            deserialize(str)
+
+        isInitialized = true
+        return value as T
+    }
+
+    private fun <I> serialize(value: I?, serializeObjects: Boolean = true): Any? {
+        if (value == null)
+            return null
+
+        return when (value) {
+            is String -> value
+            is Date -> value.stringY_m_d
+            is Time -> value.stringValue
+            is JsonObject -> value
+            is JsonArray -> value
+            // primitives
+            is Number -> value
+            is Boolean -> value
+            // enums, maps & collections
+            is Enum<*> -> value.toInt()
+            is Collection<*> -> JsonArray(value.map {
+                if (it is Number || it is Boolean) it else serialize(it, serializeObjects = false)
+            })
+            is Map<*, *> -> gson.toJson(value.mapValues { (_, it) ->
+                if (it is Number || it is Boolean) it else serialize(it, serializeObjects = false)
+            })
+            // objects or else
+            else -> if (serializeObjects) gson.toJson(value) else value
+        }
+    }
+
+    private fun <I> deserialize(value: String?, type: Class<*> = this.type): I? {
+        if (value == null)
+            return null
+
+        @Suppress("TYPE_MISMATCH_WARNING")
+        return when (type) {
+            String::class.java -> value
+            Date::class.java -> Date.fromY_m_d(value)
+            Time::class.java -> Time.fromHms(value)
+            JsonObject::class.java -> value.toJsonObject()
+            JsonArray::class.java -> value.toJsonArray()
+            // primitives
+            java.lang.Integer::class.java -> value.toIntOrNull()
+            java.lang.Boolean::class.java -> value.toBooleanStrictOrNull()
+            java.lang.Long::class.java -> value.toLongOrNull()
+            java.lang.Float::class.java -> value.toFloatOrNull()
+            // enums, maps & collections
+            else -> when {
+                Enum::class.java.isAssignableFrom(type) -> value.toIntOrNull()?.toEnum(type) as Enum<*>
+                Collection::class.java.isAssignableFrom(type) -> {
+                    val array = value.toJsonArray()
+                    val genericType = getGenericType()
+                    val list = array?.map {
+                        val str = if (it.isJsonPrimitive) it.asString else it.toString()
+                        deserialize<Any>(str, genericType)
+                    }
+                    when {
+                        List::class.java.isAssignableFrom(type) -> list
+                        Set::class.java.isAssignableFrom(type) -> list?.toSet()
+                        else -> list?.toTypedArray()
+                    }
+                }
+                Map::class.java.isAssignableFrom(type) -> {
+                    val obj = value.toJsonObject()
+                    val genericType = getGenericType(index = 1)
+                    val map = obj?.entrySet()?.associate { (key, it) ->
+                        val str = if (it.isJsonPrimitive) it.asString else it.toString()
+                        key to deserialize<Any>(str, genericType)
+                    }
+                    map
+                }
+                // objects or else
+                else -> gson.fromJson(value, type)
+            }
+        } as? I
+    }
+}
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfig.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfig.kt
index 6482634c..f97c6892 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfig.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfig.kt
@@ -4,29 +4,20 @@
 
 package pl.szczodrzynski.edziennik.config
 
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.launch
 import pl.szczodrzynski.edziennik.config.db.ConfigEntry
 import pl.szczodrzynski.edziennik.config.utils.ProfileConfigMigration
-import pl.szczodrzynski.edziennik.config.utils.get
-import pl.szczodrzynski.edziennik.config.utils.set
-import pl.szczodrzynski.edziennik.config.utils.toHashMap
 import pl.szczodrzynski.edziennik.data.db.AppDb
-import kotlin.coroutines.CoroutineContext
 
-class ProfileConfig(val db: AppDb, val profileId: Int, rawEntries: List<ConfigEntry>) : CoroutineScope, AbstractConfig {
+@Suppress("RemoveExplicitTypeArguments")
+class ProfileConfig(
+    db: AppDb,
+    profileId: Int,
+    entries: List<ConfigEntry>?,
+) : BaseConfig(db, profileId, entries) {
     companion object {
-        const val DATA_VERSION = 3
+        const val DATA_VERSION = 4
     }
 
-    private val job = Job()
-    override val coroutineContext: CoroutineContext
-        get() = job + Dispatchers.Default
-
-    val values: HashMap<String, String?> = hashMapOf()
-
     val grades by lazy { ProfileConfigGrades(this) }
     val ui by lazy { ProfileConfigUI(this) }
     val sync by lazy { ProfileConfigSync(this) }
@@ -35,26 +26,11 @@ class ProfileConfig(val db: AppDb, val profileId: Int, rawEntries: List<ConfigEn
     val timetable by lazy { ConfigTimetable(this) }
     val grades by lazy { ConfigGrades(this) }*/
 
-    private var mDataVersion: Int? = null
-    var dataVersion: Int
-        get() { mDataVersion = mDataVersion ?: values.get("dataVersion", 0); return mDataVersion ?: 0 }
-        set(value) { set("dataVersion", value); mDataVersion = value }
-
-    private var mHash: String? = null
-    var hash: String
-        get() { mHash = mHash ?: values.get("hash", ""); return mHash ?: "" }
-        set(value) { set("hash", value); mHash = value }
+    var dataVersion by config<Int>(0)
+    var hash by config<String>("")
 
     init {
-        rawEntries.toHashMap(profileId, values)
         if (dataVersion < DATA_VERSION)
             ProfileConfigMigration(this)
     }
-
-    override fun set(key: String, value: String?) {
-        values[key] = value
-        launch {
-            db.configDao().add(ConfigEntry(profileId, key, value))
-        }
-    }
 }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigAttendance.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigAttendance.kt
index 326f5b16..ba4f9deb 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigAttendance.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigAttendance.kt
@@ -4,27 +4,11 @@
 
 package pl.szczodrzynski.edziennik.config
 
-import pl.szczodrzynski.edziennik.config.utils.get
-import pl.szczodrzynski.edziennik.config.utils.set
+@Suppress("RemoveExplicitTypeArguments")
+class ProfileConfigAttendance(base: ProfileConfig) {
 
-class ProfileConfigAttendance(private val config: ProfileConfig) {
-    private var mAttendancePageSelection: Int? = null
-    var attendancePageSelection: Int
-        get() { mAttendancePageSelection = mAttendancePageSelection ?: config.values.get("attendancePageSelection", 1); return mAttendancePageSelection ?: 1 }
-        set(value) { config.set("attendancePageSelection", value); mAttendancePageSelection = value }
-
-    private var mUseSymbols: Boolean? = null
-    var useSymbols: Boolean
-        get() { mUseSymbols = mUseSymbols ?: config.values.get("useSymbols", false); return mUseSymbols ?: false }
-        set(value) { config.set("useSymbols", value); mUseSymbols = value }
-
-    private var mGroupConsecutiveDays: Boolean? = null
-    var groupConsecutiveDays: Boolean
-        get() { mGroupConsecutiveDays = mGroupConsecutiveDays ?: config.values.get("groupConsecutiveDays", true); return mGroupConsecutiveDays ?: true }
-        set(value) { config.set("groupConsecutiveDays", value); mGroupConsecutiveDays = value }
-
-    private var mShowPresenceInMonth: Boolean? = null
-    var showPresenceInMonth: Boolean
-        get() { mShowPresenceInMonth = mShowPresenceInMonth ?: config.values.get("showPresenceInMonth", false); return mShowPresenceInMonth ?: false }
-        set(value) { config.set("showPresenceInMonth", value); mShowPresenceInMonth = value }
+    var attendancePageSelection by base.config<Int>(1)
+    var groupConsecutiveDays by base.config<Boolean>(true)
+    var showPresenceInMonth by base.config<Boolean>(false)
+    var useSymbols by base.config<Boolean>(false)
 }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigGrades.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigGrades.kt
index 6434aac7..cfe4bc3e 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigGrades.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigGrades.kt
@@ -4,54 +4,19 @@
 
 package pl.szczodrzynski.edziennik.config
 
-import pl.szczodrzynski.edziennik.config.utils.get
-import pl.szczodrzynski.edziennik.config.utils.getFloat
-import pl.szczodrzynski.edziennik.config.utils.set
 import pl.szczodrzynski.edziennik.utils.managers.GradesManager.Companion.COLOR_MODE_WEIGHTED
 import pl.szczodrzynski.edziennik.utils.managers.GradesManager.Companion.YEAR_ALL_GRADES
 
-class ProfileConfigGrades(private val config: ProfileConfig) {
-    private var mColorMode: Int? = null
-    var colorMode: Int
-        get() { mColorMode = mColorMode ?: config.values.get("gradesColorMode", COLOR_MODE_WEIGHTED); return mColorMode ?: COLOR_MODE_WEIGHTED }
-        set(value) { config.set("gradesColorMode", value); mColorMode = value }
+@Suppress("RemoveExplicitTypeArguments")
+class ProfileConfigGrades(base: ProfileConfig) {
 
-    private var mYearAverageMode: Int? = null
-    var yearAverageMode: Int
-        get() { mYearAverageMode = mYearAverageMode ?: config.values.get("yearAverageMode", YEAR_ALL_GRADES); return mYearAverageMode ?: YEAR_ALL_GRADES }
-        set(value) { config.set("yearAverageMode", value); mYearAverageMode = value }
-
-    private var mHideImproved: Boolean? = null
-    var hideImproved: Boolean
-        get() { mHideImproved = mHideImproved ?: config.values.get("hideImproved", false); return mHideImproved ?: false }
-        set(value) { config.set("hideImproved", value); mHideImproved = value }
-
-    private var mAverageWithoutWeight: Boolean? = null
-    var averageWithoutWeight: Boolean
-        get() { mAverageWithoutWeight = mAverageWithoutWeight ?: config.values.get("averageWithoutWeight", true); return mAverageWithoutWeight ?: true }
-        set(value) { config.set("averageWithoutWeight", value); mAverageWithoutWeight = value }
-
-    private var mPlusValue: Float? = null
-    var plusValue: Float?
-        get() { mPlusValue = mPlusValue ?: config.values.getFloat("plusValue"); return mPlusValue }
-        set(value) { config.set("plusValue", value); mPlusValue = value }
-    private var mMinusValue: Float? = null
-    var minusValue: Float?
-        get() { mMinusValue = mMinusValue ?: config.values.getFloat("minusValue"); return mMinusValue }
-        set(value) { config.set("minusValue", value); mMinusValue = value }
-
-    private var mDontCountEnabled: Boolean? = null
-    var dontCountEnabled: Boolean
-        get() { mDontCountEnabled = mDontCountEnabled ?: config.values.get("dontCountEnabled", false); return mDontCountEnabled ?: false }
-        set(value) { config.set("dontCountEnabled", value); mDontCountEnabled = value }
-    
-    private var mDontCountGrades: List<String>? = null
-    var dontCountGrades: List<String>
-        get() { mDontCountGrades = mDontCountGrades ?: config.values.get("dontCountGrades", listOf()); return mDontCountGrades ?: listOf() }
-        set(value) { config.set("dontCountGrades", value); mDontCountGrades = value }
-
-    private var mHideSticksFromOld: Boolean? = null
-    var hideSticksFromOld: Boolean
-        get() { mHideSticksFromOld = mHideSticksFromOld ?: config.values.get("hideSticksFromOld", false); return mHideSticksFromOld ?: false }
-        set(value) { config.set("hideSticksFromOld", value); mHideSticksFromOld = value }
+    var averageWithoutWeight by base.config<Boolean>(true)
+    var colorMode by base.config<Int>(COLOR_MODE_WEIGHTED)
+    var dontCountEnabled by base.config<Boolean>(false)
+    var dontCountGrades by base.config<List<String>> { listOf() }
+    var hideImproved by base.config<Boolean>(false)
+    var hideSticksFromOld by base.config<Boolean>(false)
+    var minusValue by base.config<Float?>(null)
+    var plusValue by base.config<Float?>(null)
+    var yearAverageMode by base.config<Int>(YEAR_ALL_GRADES)
 }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigSync.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigSync.kt
index f8c67630..91b6394e 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigSync.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigSync.kt
@@ -4,14 +4,14 @@
 
 package pl.szczodrzynski.edziennik.config
 
-import pl.szczodrzynski.edziennik.config.utils.getIntList
-import pl.szczodrzynski.edziennik.config.utils.set
 import pl.szczodrzynski.edziennik.data.db.enums.NotificationType
-import pl.szczodrzynski.edziennik.ext.asNotificationTypeOrNull
 
-class ProfileConfigSync(private val config: ProfileConfig) {
-    private var mNotificationFilter: Set<NotificationType>? = null
-    var notificationFilter: Set<NotificationType>
-        get() { mNotificationFilter = mNotificationFilter ?: config.values.getIntList("notificationFilter", listOf())?.mapNotNull { it.asNotificationTypeOrNull() }?.toSet(); return mNotificationFilter ?: setOf() }
-        set(value) { config.set("notificationFilter", value.map { it.id }); mNotificationFilter = value }
+@Suppress("RemoveExplicitTypeArguments")
+class ProfileConfigSync(base: ProfileConfig) {
+
+    var notificationFilter by base.config<Set<NotificationType>> {
+        NotificationType.values()
+            .filter { it.enabledByDefault == false }
+            .toSet()
+    }
 }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigUI.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigUI.kt
index a3fb184e..4bfaf047 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigUI.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/ProfileConfigUI.kt
@@ -4,89 +4,29 @@
 
 package pl.szczodrzynski.edziennik.config
 
-import pl.szczodrzynski.edziennik.config.utils.get
-import pl.szczodrzynski.edziennik.config.utils.set
 import pl.szczodrzynski.edziennik.data.db.entity.Profile.Companion.AGENDA_DEFAULT
 import pl.szczodrzynski.edziennik.ui.home.HomeCardModel
 
-class ProfileConfigUI(private val config: ProfileConfig) {
-    private var mAgendaViewType: Int? = null
-    var agendaViewType: Int
-        get() { mAgendaViewType = mAgendaViewType ?: config.values.get("agendaViewType", 0); return mAgendaViewType ?: AGENDA_DEFAULT }
-        set(value) { config.set("agendaViewType", value); mAgendaViewType = value }
+@Suppress("RemoveExplicitTypeArguments")
+class ProfileConfigUI(base: ProfileConfig) {
 
-    private var mAgendaCompactMode: Boolean? = null
-    var agendaCompactMode: Boolean
-        get() { mAgendaCompactMode = mAgendaCompactMode ?: config.values.get("agendaCompactMode", false); return mAgendaCompactMode ?: false }
-        set(value) { config.set("agendaCompactMode", value); mAgendaCompactMode = value }
+    var agendaViewType by base.config<Int>(AGENDA_DEFAULT)
+    var agendaCompactMode by base.config<Boolean>(false)
+    var agendaGroupByType by base.config<Boolean>(false)
+    var agendaLessonChanges by base.config<Boolean>(true)
+    var agendaTeacherAbsence by base.config<Boolean>(true)
+    var agendaElearningMark by base.config<Boolean>(false)
+    var agendaElearningGroup by base.config<Boolean>(true)
 
-    private var mAgendaGroupByType: Boolean? = null
-    var agendaGroupByType: Boolean
-        get() { mAgendaGroupByType = mAgendaGroupByType ?: config.values.get("agendaGroupByType", false); return mAgendaGroupByType ?: false }
-        set(value) { config.set("agendaGroupByType", value); mAgendaGroupByType = value }
+    var homeCards by base.config<List<HomeCardModel>> { listOf() }
 
-    private var mAgendaLessonChanges: Boolean? = null
-    var agendaLessonChanges: Boolean
-        get() { mAgendaLessonChanges = mAgendaLessonChanges ?: config.values.get("agendaLessonChanges", true); return mAgendaLessonChanges ?: true }
-        set(value) { config.set("agendaLessonChanges", value); mAgendaLessonChanges = value }
+    var messagesGreetingOnCompose by base.config<Boolean>(true)
+    var messagesGreetingOnReply by base.config<Boolean>(true)
+    var messagesGreetingOnForward by base.config<Boolean>(false)
+    var messagesGreetingText by base.config<String?>(null)
 
-    private var mAgendaTeacherAbsence: Boolean? = null
-    var agendaTeacherAbsence: Boolean
-        get() { mAgendaTeacherAbsence = mAgendaTeacherAbsence ?: config.values.get("agendaTeacherAbsence", true); return mAgendaTeacherAbsence ?: true }
-        set(value) { config.set("agendaTeacherAbsence", value); mAgendaTeacherAbsence = value }
-
-    private var mAgendaElearningMark: Boolean? = null
-    var agendaElearningMark: Boolean
-        get() { mAgendaElearningMark = mAgendaElearningMark ?: config.values.get("agendaElearningMark", false); return mAgendaElearningMark ?: false }
-        set(value) { config.set("agendaElearningMark", value); mAgendaElearningMark = value }
-
-    private var mAgendaElearningGroup: Boolean? = null
-    var agendaElearningGroup: Boolean
-        get() { mAgendaElearningGroup = mAgendaElearningGroup ?: config.values.get("agendaElearningGroup", true); return mAgendaElearningGroup ?: true }
-        set(value) { config.set("agendaElearningGroup", value); mAgendaElearningGroup = value }
-
-    private var mHomeCards: List<HomeCardModel>? = null
-    var homeCards: List<HomeCardModel>
-        get() { mHomeCards = mHomeCards ?: config.values.get("homeCards", listOf(), HomeCardModel::class.java); return mHomeCards ?: listOf() }
-        set(value) { config.set("homeCards", value); mHomeCards = value }
-
-    private var mMessagesGreetingOnCompose: Boolean? = null
-    var messagesGreetingOnCompose: Boolean
-        get() { mMessagesGreetingOnCompose = mMessagesGreetingOnCompose ?: config.values.get("messagesGreetingOnCompose", true); return mMessagesGreetingOnCompose ?: true }
-        set(value) { config.set("messagesGreetingOnCompose", value); mMessagesGreetingOnCompose = value }
-
-    private var mMessagesGreetingOnReply: Boolean? = null
-    var messagesGreetingOnReply: Boolean
-        get() { mMessagesGreetingOnReply = mMessagesGreetingOnReply ?: config.values.get("messagesGreetingOnReply", true); return mMessagesGreetingOnReply ?: true }
-        set(value) { config.set("messagesGreetingOnReply", value); mMessagesGreetingOnReply = value }
-
-    private var mMessagesGreetingOnForward: Boolean? = null
-    var messagesGreetingOnForward: Boolean
-        get() { mMessagesGreetingOnForward = mMessagesGreetingOnForward ?: config.values.get("messagesGreetingOnForward", false); return mMessagesGreetingOnForward ?: false }
-        set(value) { config.set("messagesGreetingOnForward", value); mMessagesGreetingOnForward = value }
-
-    private var mMessagesGreetingText: String? = null
-    var messagesGreetingText: String?
-        get() { mMessagesGreetingText = mMessagesGreetingText ?: config.values["messagesGreetingText"]; return mMessagesGreetingText }
-        set(value) { config.set("messagesGreetingText", value); mMessagesGreetingText = value }
-
-    private var mTimetableShowAttendance: Boolean? = null
-    var timetableShowAttendance: Boolean
-        get() { mTimetableShowAttendance = mTimetableShowAttendance ?: config.values.get("timetableShowAttendance", true); return mTimetableShowAttendance ?: true }
-        set(value) { config.set("timetableShowAttendance", value); mTimetableShowAttendance = value }
-
-    private var mTimetableShowEvents: Boolean? = null
-    var timetableShowEvents: Boolean
-        get() { mTimetableShowEvents = mTimetableShowEvents ?: config.values.get("timetableShowEvents", true); return mTimetableShowEvents ?: true }
-        set(value) { config.set("timetableShowEvents", value); mTimetableShowEvents = value }
-
-    private var mTimetableTrimHourRange: Boolean? = null
-    var timetableTrimHourRange: Boolean
-        get() { mTimetableTrimHourRange = mTimetableTrimHourRange ?: config.values.get("timetableTrimHourRange", false); return mTimetableTrimHourRange ?: false }
-        set(value) { config.set("timetableTrimHourRange", value); mTimetableTrimHourRange = value }
-    
-    private var mTimetableColorSubjectName: Boolean? = null
-    var timetableColorSubjectName: Boolean
-        get() { mTimetableColorSubjectName = mTimetableColorSubjectName ?: config.values.get("timetableColorSubjectName", false); return mTimetableColorSubjectName ?: false }
-        set(value) { config.set("timetableColorSubjectName", value); mTimetableColorSubjectName = value }
+    var timetableShowAttendance by base.config<Boolean>(true)
+    var timetableShowEvents by base.config<Boolean>(true)
+    var timetableTrimHourRange by base.config<Boolean>(false)
+    var timetableColorSubjectName by base.config<Boolean>(false)
 }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/db/ConfigDao.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/db/ConfigDao.kt
index f55df857..21c6dc7c 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/db/ConfigDao.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/db/ConfigDao.kt
@@ -17,7 +17,7 @@ interface ConfigDao {
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     fun addAll(list: List<ConfigEntry>)
 
-    @Query("SELECT * FROM config WHERE profileId = -1")
+    @Query("SELECT * FROM config")
     fun getAllNow(): List<ConfigEntry>
 
     @Query("SELECT * FROM config WHERE profileId = :profileId")
@@ -25,4 +25,4 @@ interface ConfigDao {
 
     @Query("DELETE FROM config WHERE profileId = :profileId")
     fun clear(profileId: Int)
-}
\ No newline at end of file
+}
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ConfigExtensions.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ConfigExtensions.kt
deleted file mode 100644
index 94bb87e6..00000000
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ConfigExtensions.kt
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (c) Kuba Szczodrzyński 2019-11-27.
- */
-
-package pl.szczodrzynski.edziennik.config.utils
-
-import com.google.gson.*
-import com.google.gson.reflect.TypeToken
-import pl.szczodrzynski.edziennik.config.AbstractConfig
-import pl.szczodrzynski.edziennik.config.db.ConfigEntry
-import pl.szczodrzynski.edziennik.utils.models.Date
-import pl.szczodrzynski.edziennik.utils.models.Time
-
-private val gson = Gson()
-
-fun AbstractConfig.set(key: String, value: Int) {
-    set(key, value.toString())
-}
-fun AbstractConfig.set(key: String, value: Boolean) {
-    set(key, value.toString())
-}
-fun AbstractConfig.set(key: String, value: Long) {
-    set(key, value.toString())
-}
-fun AbstractConfig.set(key: String, value: Float) {
-    set(key, value.toString())
-}
-fun AbstractConfig.set(key: String, value: Date?) {
-    set(key, value?.stringY_m_d)
-}
-fun AbstractConfig.set(key: String, value: Time?) {
-    set(key, value?.stringValue)
-}
-fun AbstractConfig.set(key: String, value: JsonElement?) {
-    set(key, value?.toString())
-}
-fun AbstractConfig.set(key: String, value: List<Any>?) {
-    set(key, value?.let { gson.toJson(it) })
-}
-fun AbstractConfig.set(key: String, value: Any?) {
-    set(key, value?.let { gson.toJson(it) })
-}
-fun AbstractConfig.setStringList(key: String, value: List<String>?) {
-    set(key, value?.let { gson.toJson(it) })
-}
-fun AbstractConfig.setIntList(key: String, value: List<Int>?) {
-    set(key, value?.let { gson.toJson(it) })
-}
-fun AbstractConfig.setLongList(key: String, value: List<Long>?) {
-    set(key, value?.let { gson.toJson(it) })
-}
-fun <K, V> AbstractConfig.setMap(key: String, value: Map<K, V>?) {
-    set(key, value?.let { gson.toJson(it) })
-}
-
-fun HashMap<String, String?>.get(key: String, default: String?): String? {
-    return this[key] ?: default
-}
-fun HashMap<String, String?>.get(key: String, default: Boolean): Boolean {
-    return this[key]?.toBoolean() ?: default
-}
-fun HashMap<String, String?>.getBooleanOrNull(key: String): Boolean? {
-    return this[key]?.toBooleanStrictOrNull()
-}
-fun HashMap<String, String?>.get(key: String, default: Int): Int {
-    return this[key]?.toIntOrNull() ?: default
-}
-fun HashMap<String, String?>.get(key: String, default: Long): Long {
-    return this[key]?.toLongOrNull() ?: default
-}
-fun HashMap<String, String?>.get(key: String, default: Float): Float {
-    return this[key]?.toFloatOrNull() ?: default
-}
-fun HashMap<String, String?>.get(key: String, default: Date?): Date? {
-    return this[key]?.let { Date.fromY_m_d(it) } ?: default
-}
-fun HashMap<String, String?>.get(key: String, default: Time?): Time? {
-    return this[key]?.let { Time.fromHms(it) } ?: default
-}
-fun HashMap<String, String?>.get(key: String, default: JsonObject?): JsonObject? {
-    return this[key]?.let { JsonParser().parse(it)?.asJsonObject } ?: default
-}
-fun HashMap<String, String?>.get(key: String, default: JsonArray?): JsonArray? {
-    return this[key]?.let { JsonParser().parse(it)?.asJsonArray } ?: default
-}
-inline fun <reified T> HashMap<String, String?>.get(key: String, default: T?): T? {
-    return this[key]?.let { Gson().fromJson(it, T::class.java) } ?: default
-}
-/* !!! cannot use mutable list here - modifying it will not update the DB */
-fun <T> HashMap<String, String?>.get(key: String, default: List<T>?, classOfT: Class<T>): List<T>? {
-    return this[key]?.let { ConfigGsonUtils().deserializeList<T>(gson, it, classOfT) } ?: default
-}
-fun HashMap<String, String?>.getStringList(key: String, default: List<String>?): List<String>? {
-    return this[key]?.let { gson.fromJson<List<String>>(it, object: TypeToken<List<String>>(){}.type) } ?: default
-}
-fun HashMap<String, String?>.getIntList(key: String, default: List<Int>?): List<Int>? {
-    return this[key]?.let { gson.fromJson<List<Int>>(it, object: TypeToken<List<Int>>(){}.type) } ?: default
-}
-fun HashMap<String, String?>.getLongList(key: String, default: List<Long>?): List<Long>? {
-    return this[key]?.let { gson.fromJson<List<Long>>(it, object: TypeToken<List<Long>>(){}.type) } ?: default
-}
-
-fun HashMap<String, String?>.getFloat(key: String): Float? {
-    return this[key]?.toFloatOrNull()
-}
-
-fun List<ConfigEntry>.toHashMap(profileId: Int, map: HashMap<String, String?>) {
-    map.clear()
-    forEach {
-        if (it.profileId == profileId)
-            map[it.key] = it.value
-    }
-}
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ConfigGsonUtils.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ConfigGsonUtils.kt
deleted file mode 100644
index 0b0a634e..00000000
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ConfigGsonUtils.kt
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (c) Kuba Szczodrzyński 2019-12-2.
- */
-package pl.szczodrzynski.edziennik.config.utils
-
-import com.google.gson.Gson
-import com.google.gson.JsonParser
-import pl.szczodrzynski.edziennik.ext.getInt
-import pl.szczodrzynski.edziennik.ui.home.HomeCardModel
-import pl.szczodrzynski.edziennik.utils.models.Time
-
-class ConfigGsonUtils {
-    @Suppress("UNCHECKED_CAST")
-    fun <T> deserializeList(gson: Gson, str: String?, classOfT: Class<T>): List<T> {
-        val json = JsonParser.parseString(str)
-        val list: MutableList<T> = mutableListOf()
-        if (!json.isJsonArray)
-            return list
-
-        json.asJsonArray.forEach { e ->
-            when (classOfT) {
-                String::class.java -> {
-                    list += e.asString as T
-                }
-                HomeCardModel::class.java -> {
-                    val o = e.asJsonObject
-                    list += HomeCardModel(
-                            o.getInt("profileId", 0),
-                            o.getInt("cardId", 0)
-                    ) as T
-                }
-                Time::class.java -> {
-                    val o = e.asJsonObject
-                    list += Time(
-                            o.getInt("hour", 0),
-                            o.getInt("minute", 0),
-                            o.getInt("second", 0)
-                    ) as T
-                }
-            }
-        }
-
-        return list
-    }
-}
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ConfigMigration.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ConfigMigration.kt
index 8a45bf63..cbd18e0c 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ConfigMigration.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ConfigMigration.kt
@@ -7,7 +7,6 @@ package pl.szczodrzynski.edziennik.config.utils
 import android.content.Context
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.BuildConfig
-import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.config.Config
 import pl.szczodrzynski.edziennik.ext.HOUR
 import pl.szczodrzynski.edziennik.ui.base.enums.NavTarget
@@ -25,72 +24,9 @@ class ConfigMigration(app: App, config: Config) {
             AppConfigMigrationV3(p, config)
         }
 
-        if (dataVersion < 2) {
-            appVersion = BuildConfig.VERSION_CODE
-            loginFinished = false
-            ui.language = null
-            ui.theme = 1
-            ui.appBackground = null
-            ui.headerBackground = null
-            ui.miniMenuVisible = false
-            ui.miniMenuButtons = setOf(
-                    NavTarget.HOME,
-                    NavTarget.TIMETABLE,
-                    NavTarget.AGENDA,
-                    NavTarget.GRADES,
-                    NavTarget.MESSAGES,
-                    NavTarget.HOMEWORK,
-                    NavTarget.SETTINGS
-            )
-            sync.enabled = true
-            sync.interval = 1* HOUR.toInt()
-            sync.notifyAboutUpdates = true
-            sync.onlyWifi = false
-            sync.quietHoursEnabled = false
-            sync.quietHoursStart = null
-            sync.quietHoursEnd = null
-            sync.quietDuringLessons = false
-            sync.tokenApp = null
-            sync.tokenMobidziennik = null
-            sync.tokenMobidziennikList = listOf()
-            sync.tokenLibrus = null
-            sync.tokenLibrusList = listOf()
-            sync.tokenVulcan = null
-            sync.tokenVulcanList = listOf()
-            timetable.bellSyncMultiplier = 0
-            timetable.bellSyncDiff = null
-            timetable.countInSeconds = false
-            grades.orderBy = ORDER_BY_DATE_DESC
-
-            dataVersion = 2
-        }
-
-        if (dataVersion < 3) {
-            update = null
-            privacyPolicyAccepted = false
-            devMode = null
-            devModePassword = null
-            appInstalledTime = 0L
-            appRateSnackbarTime = 0L
-
-            dataVersion = 3
-        }
-
-        if (dataVersion < 10) {
-            ui.openDrawerOnBackPressed = false
-            ui.snowfall = false
-            ui.bottomSheetOpened = false
-            sync.dontShowAppManagerDialog = false
-            sync.webPushEnabled = true
-            sync.lastAppSync = 0L
-
-
-            dataVersion = 10
-        }
-
         if (dataVersion < 11) {
-            val startMillis = config.values.get("quietHoursStart", 0L)
-            val endMillis = config.values.get("quietHoursEnd", 0L)
+            val startMillis = config.values["quietHoursStart"]?.toLongOrNull() ?: 0L
+            val endMillis = config.values["quietHoursEnd"]?.toLongOrNull() ?: 0L
             if (startMillis > 0) {
                 try {
                     sync.quietHoursStart = Time.fromMillis(abs(startMillis))
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ProfileConfigMigration.kt b/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ProfileConfigMigration.kt
index 28e5f166..c5b56690 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ProfileConfigMigration.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/config/utils/ProfileConfigMigration.kt
@@ -7,6 +7,7 @@ package pl.szczodrzynski.edziennik.config.utils
 import pl.szczodrzynski.edziennik.config.ProfileConfig
 import pl.szczodrzynski.edziennik.data.db.entity.Profile.Companion.AGENDA_DEFAULT
 import pl.szczodrzynski.edziennik.data.db.enums.NotificationType
+import pl.szczodrzynski.edziennik.data.db.enums.SchoolType
 import pl.szczodrzynski.edziennik.ui.home.HomeCard
 import pl.szczodrzynski.edziennik.ui.home.HomeCardModel
 import pl.szczodrzynski.edziennik.utils.managers.GradesManager.Companion.COLOR_MODE_WEIGHTED
@@ -15,21 +16,6 @@ import pl.szczodrzynski.edziennik.utils.managers.GradesManager.Companion.YEAR_AL
 class ProfileConfigMigration(config: ProfileConfig) {
     init { config.apply {
 
-        if (dataVersion < 1) {
-            grades.colorMode = COLOR_MODE_WEIGHTED
-            grades.yearAverageMode = YEAR_ALL_GRADES
-            grades.hideImproved = false
-            grades.averageWithoutWeight = true
-            grades.plusValue = null
-            grades.minusValue = null
-            grades.dontCountEnabled = false
-            grades.dontCountGrades = listOf()
-            ui.agendaViewType = AGENDA_DEFAULT
-            // no migration for ui.homeCards
-
-            dataVersion = 1
-        }
-
         if (dataVersion < 2) {
             sync.notificationFilter = sync.notificationFilter + NotificationType.TEACHER_ABSENCE
 
@@ -38,12 +24,24 @@ class ProfileConfigMigration(config: ProfileConfig) {
 
         if (dataVersion < 3) {
             if (ui.homeCards.isNotEmpty()) {
-                ui.homeCards = ui.homeCards.toMutableList().also {
-                    it.add(HomeCardModel(config.profileId, HomeCard.CARD_NOTES))
-                }
+                ui.homeCards = ui.homeCards + HomeCardModel(
+                    profileId = config.profileId ?: -1,
+                    cardId = HomeCard.CARD_NOTES,
+                )
             }
 
             dataVersion = 3
         }
+
+        if (dataVersion < 4) {
+            // switch to new event types (USOS)
+            dataVersion = 4
+
+            val profile = db.profileDao().getByIdNow(profileId ?: -1)
+            if (profile?.loginStoreType?.schoolType == SchoolType.UNIVERSITY) {
+                db.eventTypeDao().clear(profileId ?: -1)
+                db.eventTypeDao().addDefaultTypes(profile)
+            }
+        }
     }}
 }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/data/db/dao/EventTypeDao.kt b/app/src/main/java/pl/szczodrzynski/edziennik/data/db/dao/EventTypeDao.kt
index d5006970..c6c9ee44 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/data/db/dao/EventTypeDao.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/data/db/dao/EventTypeDao.kt
@@ -3,15 +3,16 @@
  */
 package pl.szczodrzynski.edziennik.data.db.dao
 
-import android.content.Context
+import android.graphics.Color
 import androidx.lifecycle.LiveData
 import androidx.room.Dao
 import androidx.room.Insert
 import androidx.room.OnConflictStrategy
 import androidx.room.Query
-import pl.szczodrzynski.edziennik.data.db.entity.Event.Companion.COLOR_DEFAULT
+import pl.szczodrzynski.edziennik.config.AppData
 import pl.szczodrzynski.edziennik.data.db.entity.EventType
 import pl.szczodrzynski.edziennik.data.db.entity.EventType.Companion.SOURCE_DEFAULT
+import pl.szczodrzynski.edziennik.data.db.entity.Profile
 
 @Dao
 abstract class EventTypeDao {
@@ -36,17 +37,17 @@ abstract class EventTypeDao {
     @get:Query("SELECT * FROM eventTypes")
     abstract val allNow: List<EventType>
 
-    fun addDefaultTypes(context: Context, profileId: Int): List<EventType> {
+    fun addDefaultTypes(profile: Profile): List<EventType> {
+        val data = AppData.get(profile.loginStoreType)
         var order = 100
-        val colorMap = EventType.getTypeColorMap()
-        val typeList = EventType.getTypeNameMap().map { (id, name) ->
+        val typeList = data.eventTypes.map {
             EventType(
-                profileId = profileId,
-                id = id,
-                name = context.getString(name),
-                color = colorMap[id] ?: COLOR_DEFAULT,
+                profileId = profile.id,
+                id = it.id.toLong(),
+                name = it.name,
+                color = Color.parseColor(it.color),
                 order = order++,
-                source = SOURCE_DEFAULT
+                source = SOURCE_DEFAULT,
             )
         }
         addAll(typeList)
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/data/db/enums/LoginType.kt b/app/src/main/java/pl/szczodrzynski/edziennik/data/db/enums/LoginType.kt
index 9bc066d9..de0ca2f8 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/data/db/enums/LoginType.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/data/db/enums/LoginType.kt
@@ -7,12 +7,13 @@ package pl.szczodrzynski.edziennik.data.db.enums
 enum class LoginType(
     val id: Int,
     val features: Set<FeatureType>,
+    val schoolType: SchoolType = SchoolType.STANDARD,
 ) {
     MOBIDZIENNIK(id = 1, features = FEATURES_MOBIDZIENNIK),
     LIBRUS(id = 2, features = FEATURES_LIBRUS),
     VULCAN(id = 4, features = FEATURES_VULCAN),
     PODLASIE(id = 6, features = FEATURES_PODLASIE),
-    USOS(id = 7, features = FEATURES_USOS),
+    USOS(id = 7, features = FEATURES_USOS, schoolType = SchoolType.UNIVERSITY),
     DEMO(id = 20, features = setOf()),
     TEMPLATE(id = 21, features = setOf()),
 
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/data/db/enums/SchoolType.kt b/app/src/main/java/pl/szczodrzynski/edziennik/data/db/enums/SchoolType.kt
new file mode 100644
index 00000000..593851e2
--- /dev/null
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/data/db/enums/SchoolType.kt
@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) Kuba Szczodrzyński 2022-10-21.
+ */
+
+package pl.szczodrzynski.edziennik.data.db.enums
+
+enum class SchoolType {
+    STANDARD,
+    UNIVERSITY,
+}
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ext/DataExtensions.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ext/DataExtensions.kt
index fc0c3fd0..5958078d 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ext/DataExtensions.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ext/DataExtensions.kt
@@ -8,6 +8,8 @@ import android.util.LongSparseArray
 import androidx.core.util.forEach
 import com.google.android.material.datepicker.CalendarConstraints
 import com.google.gson.JsonElement
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.config.AppData
 import pl.szczodrzynski.edziennik.data.db.entity.Profile
 import pl.szczodrzynski.edziennik.data.db.entity.Teacher
 import pl.szczodrzynski.edziennik.data.db.entity.Team
@@ -48,3 +50,6 @@ fun Profile.getSchoolYearConstrains(): CalendarConstraints {
 
 fun Profile.hasFeature(featureType: FeatureType) = featureType in this.loginStoreType.features
 fun Profile.hasUIFeature(featureType: FeatureType) = featureType.isUIAlwaysAvailable || hasFeature(featureType)
+
+fun Profile.getAppData() =
+    if (App.profileId == this.id) App.data else AppData.get(this.loginStoreType)
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ext/JsonExtensions.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ext/JsonExtensions.kt
index 813b16c2..5342b330 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ext/JsonExtensions.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ext/JsonExtensions.kt
@@ -46,6 +46,7 @@ inline fun <reified E : Enum<E>> JsonObject?.getEnum(key: String) = this?.getInt
 fun JsonObject.putEnum(key: String, value: Enum<*>) = addProperty(key, value.toInt())
 
 fun String.toJsonObject(): JsonObject? = try { JsonParser.parseString(this).asJsonObject } catch (ignore: Exception) { null }
+fun String.toJsonArray(): JsonArray? = try { JsonParser.parseString(this).asJsonArray } catch (ignore: Exception) { null }
 
 operator fun JsonObject.set(key: String, value: JsonElement) = this.add(key, value)
 operator fun JsonObject.set(key: String, value: Boolean) = this.addProperty(key, value)
@@ -86,7 +87,9 @@ fun JsonObject.toBundle(): Bundle {
     }
 }
 
-fun JsonArray(vararg properties: Any?): JsonArray {
+fun JsonArray(vararg properties: Any?) = JsonArray(properties.toList())
+
+fun JsonArray(properties: Collection<Any?>): JsonArray {
     return JsonArray().apply {
         for (property in properties) {
             when (property) {
@@ -112,3 +115,20 @@ operator fun JsonArray.plusAssign(o: String) = this.add(o)
 operator fun JsonArray.plusAssign(o: Char) = this.add(o)
 operator fun JsonArray.plusAssign(o: Number) = this.add(o)
 operator fun JsonArray.plusAssign(o: Boolean) = this.add(o)
+
+fun JsonObject.mergeWith(other: JsonObject): JsonObject {
+    for ((key, value) in other.entrySet()) {
+        when (value) {
+            is JsonObject -> when {
+                this.has(key) -> this.getJsonObject(key)?.mergeWith(value)
+                else -> this.add(key, value)
+            }
+            is JsonArray -> when {
+                this.has(key) -> this.getJsonArray(key)?.addAll(value)
+                else -> this.add(key, value)
+            }
+            else -> this.add(key, value)
+        }
+    }
+    return this
+}
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ext/MiscExtensions.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ext/MiscExtensions.kt
index df931fbd..26dc442a 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ext/MiscExtensions.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ext/MiscExtensions.kt
@@ -72,3 +72,8 @@ fun pendingIntentFlag(): Int {
         return PendingIntent.FLAG_IMMUTABLE
     return 0
 }
+
+fun Int?.takeValue() = if (this == -1) null else this
+fun Int?.takePositive() = if (this == -1 || this == 0) null else this
+
+fun Any?.ignore() = Unit
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/agenda/AgendaFragment.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ui/agenda/AgendaFragment.kt
index 7d96a14d..c521828f 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/agenda/AgendaFragment.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/agenda/AgendaFragment.kt
@@ -22,7 +22,6 @@ import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.entity.EventType
-import pl.szczodrzynski.edziennik.data.db.entity.Metadata
 import pl.szczodrzynski.edziennik.data.db.entity.Profile
 import pl.szczodrzynski.edziennik.data.db.enums.MetadataType
 import pl.szczodrzynski.edziennik.databinding.FragmentAgendaCalendarBinding
@@ -33,7 +32,6 @@ import pl.szczodrzynski.edziennik.utils.Themes
 import pl.szczodrzynski.edziennik.utils.models.Date
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
-import java.util.*
 import kotlin.coroutines.CoroutineContext
 
 class AgendaFragment : Fragment(), CoroutineScope {
@@ -144,7 +142,7 @@ class AgendaFragment : Fragment(), CoroutineScope {
             }
             val defaultEventTypes = EventType.getTypeColorMap().keys
             if (!eventTypes.containsAll(defaultEventTypes)) {
-                app.db.eventTypeDao().addDefaultTypes(activity, app.profileId)
+                app.db.eventTypeDao().addDefaultTypes(app.profile)
             }
         }
     }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/announcements/AnnouncementsFragment.java b/app/src/main/java/pl/szczodrzynski/edziennik/ui/announcements/AnnouncementsFragment.java
index 69f29693..3bc0e13e 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/announcements/AnnouncementsFragment.java
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/announcements/AnnouncementsFragment.java
@@ -72,7 +72,7 @@ public class AnnouncementsFragment extends Fragment {
                             if (app.getProfile().getLoginStoreType() == LoginType.LIBRUS) {
                                 EdziennikTask.Companion.announcementsRead(App.Companion.getProfileId()).enqueue(requireContext());
                             } else {
-                                AsyncTask.execute(() -> App.db.metadataDao().setAllSeen(App.Companion.getProfileId(), MetadataType.ANNOUNCEMENT, true));
+                                AsyncTask.execute(() -> App.Companion.getDb().metadataDao().setAllSeen(App.Companion.getProfileId(), MetadataType.ANNOUNCEMENT, true));
                                 Toast.makeText(activity, R.string.main_menu_mark_as_read_success, Toast.LENGTH_SHORT).show();
                             }
                         })
@@ -103,7 +103,7 @@ public class AnnouncementsFragment extends Fragment {
             }
         });
 
-        app.db.announcementDao().getAll(App.Companion.getProfileId()).observe(getViewLifecycleOwner(), announcements -> {
+        app.getDb().announcementDao().getAll(App.Companion.getProfileId()).observe(getViewLifecycleOwner(), announcements -> {
             if (app == null || activity == null || b == null || !isAdded())
                 return;
 
@@ -174,7 +174,7 @@ public class AnnouncementsFragment extends Fragment {
         b.text.setText(announcement.getTeacherName() +"\n\n"+ (announcement.getStartDate() != null ? announcement.getStartDate().getFormattedString() : "-") + (announcement.getEndDate() != null ? " do " + announcement.getEndDate().getFormattedString() : "")+"\n\n" +announcement.getText());
         if (!announcement.getSeen() && app.getProfile().getLoginStoreType() != LoginType.LIBRUS) {
             announcement.setSeen(true);
-            AsyncTask.execute(() -> App.db.metadataDao().setSeen(App.Companion.getProfileId(), announcement, true));
+            AsyncTask.execute(() -> App.Companion.getDb().metadataDao().setSeen(App.Companion.getProfileId(), announcement, true));
             if (recyclerView.getAdapter() != null)
                 recyclerView.getAdapter().notifyDataSetChanged();
         }
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/behaviour/BehaviourFragment.java b/app/src/main/java/pl/szczodrzynski/edziennik/ui/behaviour/BehaviourFragment.java
index fef48d3c..f0eb11d2 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/behaviour/BehaviourFragment.java
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/behaviour/BehaviourFragment.java
@@ -72,7 +72,7 @@ public class BehaviourFragment extends Fragment {
                         .withIcon(CommunityMaterial.Icon.cmd_eye_check_outline)
                         .withOnClickListener(v3 -> {
                             activity.getBottomSheet().close();
-                            AsyncTask.execute(() -> App.db.metadataDao().setAllSeen(App.Companion.getProfileId(), MetadataType.NOTICE, true));
+                            AsyncTask.execute(() -> App.Companion.getDb().metadataDao().setAllSeen(App.Companion.getProfileId(), MetadataType.NOTICE, true));
                             Toast.makeText(activity, R.string.main_menu_mark_as_read_success, Toast.LENGTH_SHORT).show();
                         })
         );
@@ -111,7 +111,7 @@ public class BehaviourFragment extends Fragment {
             }
         });
 
-        app.db.noticeDao().getAll(App.Companion.getProfileId()).observe(getViewLifecycleOwner(), notices -> {
+        app.getDb().noticeDao().getAll(App.Companion.getProfileId()).observe(getViewLifecycleOwner(), notices -> {
             if (app == null || activity == null || b == null || !isAdded())
                 return;
 
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/behaviour/NoticesAdapter.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ui/behaviour/NoticesAdapter.kt
index 0d79c5ca..89dbb773 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/behaviour/NoticesAdapter.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/behaviour/NoticesAdapter.kt
@@ -19,7 +19,6 @@ import eu.szkolny.font.SzkolnyFont
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.entity.Notice
-import pl.szczodrzynski.edziennik.data.db.enums.LoginType
 import pl.szczodrzynski.edziennik.data.db.full.NoticeFull
 import pl.szczodrzynski.edziennik.utils.BetterLink
 import pl.szczodrzynski.edziennik.utils.Utils.bs
@@ -40,7 +39,7 @@ class NoticesAdapter//getting the context and product list with constructor
 
         val notice = noticeList[position]
 
-        if (app.profile.loginStoreType == LoginType.MOBIDZIENNIK && false) {
+        if (app.data.uiConfig.enableNoticePoints && false) {
             holder.noticesItemReason.text = bs(null, notice.category, "\n") + notice.text
             holder.noticesItemTeacherName.text = app.getString(R.string.notices_points_format, notice.teacherName, if (notice.points ?: 0f > 0) "+" + notice.points else notice.points)
         } else {
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/home/HomeFragment.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ui/home/HomeFragment.kt
index 50240713..3cd0fa83 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/home/HomeFragment.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/home/HomeFragment.kt
@@ -26,7 +26,6 @@ import pl.szczodrzynski.edziennik.BuildConfig
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.enums.FeatureType
-import pl.szczodrzynski.edziennik.data.db.enums.LoginType
 import pl.szczodrzynski.edziennik.databinding.FragmentHomeBinding
 import pl.szczodrzynski.edziennik.ext.hasUIFeature
 import pl.szczodrzynski.edziennik.ext.onClick
@@ -127,7 +126,7 @@ class HomeFragment : Fragment(), CoroutineScope {
                         .withOnClickListener(OnClickListener {
                             activity.bottomSheet.close()
                             launch { withContext(Dispatchers.Default) {
-                                if (app.profile.loginStoreType != LoginType.LIBRUS) {
+                                if (!app.data.uiConfig.enableMarkAsReadAnnouncements) {
                                     app.db.metadataDao().setAllSeenExceptMessagesAndAnnouncements(App.profileId, true)
                                 } else {
                                     app.db.metadataDao().setAllSeenExceptMessages(App.profileId, true)
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/login/LoginSyncFragment.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ui/login/LoginSyncFragment.kt
index 6d3068b8..2d1c44e9 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/login/LoginSyncFragment.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/login/LoginSyncFragment.kt
@@ -11,14 +11,13 @@ import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.navigation.NavController
 import androidx.navigation.Navigation
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
+import kotlinx.coroutines.*
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
 import org.greenrobot.eventbus.ThreadMode
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.R
+import pl.szczodrzynski.edziennik.config.AppData
 import pl.szczodrzynski.edziennik.data.api.edziennik.EdziennikTask
 import pl.szczodrzynski.edziennik.data.api.events.ApiTaskAllFinishedEvent
 import pl.szczodrzynski.edziennik.data.api.events.ApiTaskErrorEvent
@@ -29,6 +28,7 @@ import pl.szczodrzynski.edziennik.databinding.LoginSyncFragmentBinding
 import pl.szczodrzynski.edziennik.ext.Bundle
 import pl.szczodrzynski.edziennik.ext.asBoldSpannable
 import pl.szczodrzynski.edziennik.ext.concat
+import pl.szczodrzynski.edziennik.ext.ignore
 import kotlin.coroutines.CoroutineContext
 import kotlin.math.roundToInt
 
@@ -56,7 +56,7 @@ class LoginSyncFragment : Fragment(), CoroutineScope {
         return b.root
     }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) = launch {
 
         EventBus.getDefault().removeStickyEvent(ApiTaskAllFinishedEvent::class.java)
         EventBus.getDefault().removeStickyEvent(ApiTaskErrorEvent::class.java)
@@ -64,26 +64,34 @@ class LoginSyncFragment : Fragment(), CoroutineScope {
         val profiles = activity.profiles.filter { it.isSelected }.map { it.profile }
         val loginStores = activity.loginStores.filter { store -> profiles.any { it.loginStoreId == store.id } }
 
-        val registrationAllowed = arguments?.getBoolean("registrationAllowed") ?: false
-        profiles.forEach {
-            it.registration = if (registrationAllowed)
-                Profile.REGISTRATION_ENABLED
-            else
-                Profile.REGISTRATION_DISABLED
+        withContext(Dispatchers.IO) {
+            val registrationAllowed = arguments?.getBoolean("registrationAllowed") ?: false
+            profiles.forEach {
+                it.registration = if (registrationAllowed)
+                    Profile.REGISTRATION_ENABLED
+                else
+                    Profile.REGISTRATION_DISABLED
 
-            app.db.eventTypeDao().addDefaultTypes(activity, it.id)
+                val data = AppData.get(it.loginStoreType)
+                val config = app.config.getFor(it.id)
+                for ((key, value) in data.configOverrides) {
+                    config.set(key, value)
+                }
+
+                app.db.eventTypeDao().addDefaultTypes(it)
+            }
+
+            app.db.profileDao().addAll(profiles)
+            app.db.loginStoreDao().addAll(loginStores)
         }
 
-        app.db.profileDao().addAll(profiles)
-        app.db.loginStoreDao().addAll(loginStores)
-
         finishArguments = Bundle(
                 "firstProfileId" to profiles.firstOrNull()?.id
         )
 
         val profileIds = profiles.map { it.id }.toSet()
         EdziennikTask.syncProfileList(profileIds).enqueue(activity)
-    }
+    }.ignore()
 
     @Subscribe(threadMode = ThreadMode.MAIN)
     fun onSyncStartedEvent(event: ApiTaskStartedEvent) {
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/compose/MessagesComposeFragment.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/compose/MessagesComposeFragment.kt
index 768c395e..9284f776 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/compose/MessagesComposeFragment.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/compose/MessagesComposeFragment.kt
@@ -30,7 +30,6 @@ import pl.szczodrzynski.edziennik.data.api.edziennik.EdziennikTask
 import pl.szczodrzynski.edziennik.data.api.events.MessageSentEvent
 import pl.szczodrzynski.edziennik.data.api.events.RecipientListGetEvent
 import pl.szczodrzynski.edziennik.data.api.models.ApiError
-import pl.szczodrzynski.edziennik.data.db.entity.LoginStore
 import pl.szczodrzynski.edziennik.data.db.entity.Message
 import pl.szczodrzynski.edziennik.data.db.entity.Teacher
 import pl.szczodrzynski.edziennik.data.db.enums.LoginType
@@ -76,8 +75,6 @@ class MessagesComposeFragment : Fragment(), CoroutineScope {
 
     private lateinit var stylingConfig: StylingConfig
     private lateinit var uiConfig: UIConfig
-    private val enableTextStyling
-        get() = app.profile.loginStoreType != LoginType.LIBRUS
     private var changedRecipients = false
     private var changedSubject = false
     private var changedBody = false
@@ -154,14 +151,14 @@ class MessagesComposeFragment : Fragment(), CoroutineScope {
     }
 
     private fun getMessageBody(): String {
-        return if (enableTextStyling)
+        return if (app.data.messagesConfig.textStyling)
             textStylingManager.getHtmlText(stylingConfig)
         else
             b.text.text?.toString() ?: ""
     }
 
     private fun getRecipientList() {
-        if (System.currentTimeMillis() - app.profile.lastReceiversSync > 1 * DAY * 1000 && app.profile.loginStoreType != LoginType.VULCAN) {
+        if (app.data.messagesConfig.syncRecipientList && System.currentTimeMillis() - app.profile.lastReceiversSync > 1 * DAY * 1000) {
             activity.snackbar("Pobieranie listy odbiorców...")
             EdziennikTask.recipientListGet(App.profileId).enqueue(activity)
         }
@@ -262,8 +259,8 @@ class MessagesComposeFragment : Fragment(), CoroutineScope {
             },
         )
 
-        b.fontStyle.root.isVisible = enableTextStyling
-        if (enableTextStyling) {
+        b.fontStyle.root.isVisible = app.data.messagesConfig.textStyling
+        if (app.data.messagesConfig.textStyling) {
             textStylingManager.attach(stylingConfig)
             b.fontStyle.styles.addOnButtonCheckedListener { _, _, _ ->
                 changedBody = true
@@ -374,7 +371,7 @@ class MessagesComposeFragment : Fragment(), CoroutineScope {
             else -> b.text.requestFocus()
         }
 
-        if (!enableTextStyling)
+        if (!app.data.messagesConfig.textStyling)
             b.text.setText(b.text.text?.toString())
         b.text.setSelection(0)
          (b.root as? ScrollView)?.smoothScrollTo(0, 0)
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/single/MessageFragment.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/single/MessageFragment.kt
index 4a68ad95..a278660d 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/single/MessageFragment.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/messages/single/MessageFragment.kt
@@ -188,7 +188,7 @@ class MessageFragment : Fragment(), CoroutineScope {
             }
         }
 
-        if (app.profile.loginStoreType == LoginType.VULCAN) {
+        if (app.data.messagesConfig.needsReadStatus) {
             // vulcan: change message status or download attachments
             if ((message.isReceived || message.isDeleted) && !message.seen || message.attachmentIds == null) {
                 EdziennikTask.messageGet(App.profileId, message).enqueue(activity)
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/timetable/TimetableDayFragment.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ui/timetable/TimetableDayFragment.kt
index 4a03a099..988a1155 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/timetable/TimetableDayFragment.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/timetable/TimetableDayFragment.kt
@@ -83,7 +83,7 @@ class TimetableDayFragment : LazyFragment(), CoroutineScope {
             startHour = startHour,
             endHour = endHour,
             dividerHeight = 1.dp,
-            halfHourHeight = if (app.profile.loginStoreType == LoginType.USOS) 45.dp else 60.dp,
+            halfHourHeight = app.data.uiConfig.lessonHeight.dp,
             hourDividerColor = R.attr.hourDividerColor.resolveAttr(context),
             halfHourDividerColor = R.attr.halfHourDividerColor.resolveAttr(context),
             hourLabelWidth = 40.dp,
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/views/EventTypeDropdown.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ui/views/EventTypeDropdown.kt
index f61ec9a4..d6a8d1cd 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/views/EventTypeDropdown.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/views/EventTypeDropdown.kt
@@ -37,7 +37,8 @@ class EventTypeDropdown : TextInputDropDown {
             var types = db.eventTypeDao().getAllNow(profileId)
 
             if (types.none { it.id in -1L..10L }) {
-                types = db.eventTypeDao().addDefaultTypes(context, profileId)
+                val profile = db.profileDao().getByIdNow(profileId) ?: return@withContext listOf()
+                types = db.eventTypeDao().addDefaultTypes(profile)
             }
 
             list += types.map {
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/widgets/WidgetConfigActivity.java b/app/src/main/java/pl/szczodrzynski/edziennik/ui/widgets/WidgetConfigActivity.java
index b5d204f4..d427e1b0 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/widgets/WidgetConfigActivity.java
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/widgets/WidgetConfigActivity.java
@@ -85,7 +85,7 @@ public class WidgetConfigActivity extends Activity {
                 opacity = 0.8f;
 
             AsyncTask.execute(() -> {
-                profileList = App.db.profileDao().getAllNow();
+                profileList = App.Companion.getDb().profileDao().getAllNow();
                 profileList = filterOutArchived(profileList);
 
                 if (widgetType == WIDGET_NOTIFICATIONS)
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/ui/widgets/timetable/WidgetTimetableProvider.kt b/app/src/main/java/pl/szczodrzynski/edziennik/ui/widgets/timetable/WidgetTimetableProvider.kt
index 7fc82875..2ac510f5 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/ui/widgets/timetable/WidgetTimetableProvider.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/ui/widgets/timetable/WidgetTimetableProvider.kt
@@ -25,7 +25,9 @@ import com.mikepenz.iconics.IconicsDrawable
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
 import com.mikepenz.iconics.utils.colorInt
 import com.mikepenz.iconics.utils.sizeDp
-import pl.szczodrzynski.edziennik.*
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.api.edziennik.EdziennikTask
 import pl.szczodrzynski.edziennik.data.db.entity.Lesson
 import pl.szczodrzynski.edziennik.data.db.entity.Lesson.Companion.TYPE_NO_LESSONS
@@ -393,7 +395,7 @@ class WidgetTimetableProvider : AppWidgetProvider() {
                 headerIntent.putExtra("profileId", it)
             }
             displayingDate?.let {
-                headerIntent.putExtra("timetableDate", it.value)
+                headerIntent.putExtra("timetableDate", it.stringY_m_d)
             }
         }
         headerIntent.putExtras("fragmentId" to NavTarget.TIMETABLE)
diff --git a/app/src/main/res/raw/app_data.json b/app/src/main/res/raw/app_data.json
new file mode 100644
index 00000000..da85a0c9
--- /dev/null
+++ b/app/src/main/res/raw/app_data.json
@@ -0,0 +1,176 @@
+{
+	"base": {
+		"messagesConfig": {
+			"subjectLength": null,
+			"bodyLength": null,
+			"textStyling": true,
+			"syncRecipientList": true,
+			"htmlMode": "ORIGINAL",
+			"needsReadStatus": false
+		},
+		"uiConfig": {
+			"lessonHeight": 60,
+			"enableMarkAsReadAnnouncements": true,
+			"enableNoticePoints": false
+		},
+		"eventTypes": [
+			{
+				"id": -5,
+				"color": "#f57f17",
+				"name": "lekcja online"
+			},
+			{
+				"id": -1,
+				"color": "#795548",
+				"name": "zadanie domowe"
+			},
+			{
+				"id": 0,
+				"color": "#ffc107",
+				"name": "inny"
+			}
+		]
+	},
+	"standard": {
+		"eventTypes": [
+			{
+				"id": 1,
+				"color": "#f44336",
+				"name": "sprawdzian"
+			},
+			{
+				"id": 2,
+				"color": "#76ff03",
+				"name": "kartkówka"
+			},
+			{
+				"id": 3,
+				"color": "#4050b5",
+				"name": "wypracowanie"
+			},
+			{
+				"id": 4,
+				"color": "#673ab7",
+				"name": "projekt"
+			},
+			{
+				"id": 5,
+				"color": "#90caf9",
+				"name": "zebranie z rodzicami"
+			},
+			{
+				"id": 6,
+				"color": "#4caf50",
+				"name": "wycieczka"
+			},
+			{
+				"id": 7,
+				"color": "#ffeb3b",
+				"name": "lektura"
+			},
+			{
+				"id": 8,
+				"color": "#388e3c",
+				"name": "wydarzenie klasowe"
+			},
+			{
+				"id": 9,
+				"color": "#039be5",
+				"name": "informacja"
+			}
+		]
+	},
+	"university": {
+		"configOverrides": {
+			"timetableColorSubjectName": true
+		},
+		"uiConfig": {
+			"lessonHeight": 45
+		},
+		"eventTypes": [
+			{
+				"id": 1,
+				"color": "#f44336",
+				"name": "egzamin"
+			},
+			{
+				"id": 2,
+				"color": "#e91e63",
+				"name": "kolokwium"
+			},
+			{
+				"id": 3,
+				"color": "#76ff03",
+				"name": "kartkówka"
+			},
+			{
+				"id": 4,
+				"color": "#ffeb3b",
+				"name": "wejściówka"
+			},
+			{
+				"id": 5,
+				"color": "#90caf9",
+				"name": "zaliczenie"
+			},
+			{
+				"id": 6,
+				"color": "#4050b5",
+				"name": "zadanie"
+			},
+			{
+				"id": 7,
+				"color": "#673ab7",
+				"name": "projekt"
+			},
+			{
+				"id": 8,
+				"color": "#388e3c",
+				"name": "zajęcia"
+			},
+			{
+				"id": 9,
+				"color": "#4caf50",
+				"name": "zajęcia dodatkowe"
+			},
+			{
+				"id": 10,
+				"color": "#039be5",
+				"name": "informacja"
+			}
+		]
+	},
+	"mobidziennik": {
+		"messagesConfig": {
+			"subjectLength": 100,
+			"htmlMode": "COMPATIBLE"
+		},
+		"uiConfig": {
+			"enableNoticePoints": true
+		}
+	},
+	"librus": {
+		"messagesConfig": {
+			"subjectLength": 150,
+			"bodyLength": 20000,
+			"textStyling": false
+		},
+		"uiConfig": {
+			"enableMarkAsReadAnnouncements": false
+		}
+	},
+	"vulcan": {
+		"messagesConfig": {
+			"subjectLength": 200,
+			"syncRecipientList": false,
+			"needsReadStatus": true
+		}
+	},
+	"idziennik": {
+		"messagesConfig": {
+			"subjectLength": 180,
+			"bodyLength": 1983,
+			"textStyling": false
+		}
+	}
+}
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7109559f..ac864912 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1548,4 +1548,5 @@
     <string name="login_mode_usos_oauth_guide">TODO</string>
     <string name="notification_user_action_required_oauth_usos">USOS - wymagane logowanie z użyciem przeglądarki</string>
     <string name="oauth_dialog_title">Zaloguj się</string>
+    <string name="app_cannot_load_data">Nie można załadować danych aplikacji</string>
 </resources>