diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index c51d473..ed118fc 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * Created by sweetbread
+ * Copyright (c) 2025. All rights reserved.
+ */
+
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.android)
@@ -63,4 +68,6 @@ dependencies {
     implementation(libs.ktor.client.okhttp)
     implementation(libs.ktor.client.logging)
     implementation(libs.logback.classic)
+
+    implementation(libs.splitties.base)
 }
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 65c94bf..b5b7bc1 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Created by sweetbread
+  ~ Copyright (c) 2025. All rights reserved.
+  -->
+
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
+    <uses-permission android:name="android.permission.INTERNET" />
 
     <application
         android:allowBackup="true"
diff --git a/app/src/main/java/ru/risdeveau/geotracker/API.kt b/app/src/main/java/ru/risdeveau/geotracker/API.kt
index f4eb85b..e28e4b4 100644
--- a/app/src/main/java/ru/risdeveau/geotracker/API.kt
+++ b/app/src/main/java/ru/risdeveau/geotracker/API.kt
@@ -1,3 +1,8 @@
+/*
+ * Created by sweetbread
+ * Copyright (c) 2025. All rights reserved.
+ */
+
 package ru.risdeveau.geotracker
 
 import io.ktor.client.*
@@ -21,7 +26,7 @@ data class GeoData(
 
 
 /**
- * Function to validate [baseurl]
+ * Validate [baseurl] and check accessibility to a server
  * @return true if baseurl is valid
  */
 suspend fun health(baseurl: String): Boolean {
@@ -29,4 +34,8 @@ suspend fun health(baseurl: String): Boolean {
     return r.status == HttpStatusCode.OK
 }
 
-fun sendGeo(baseurl: String, )
\ No newline at end of file
+/**
+ * Send data to a server
+ */
+fun sendGeo(baseurl: String, data: GeoData) {
+}
\ No newline at end of file
diff --git a/app/src/main/java/ru/risdeveau/geotracker/Data.kt b/app/src/main/java/ru/risdeveau/geotracker/Data.kt
new file mode 100644
index 0000000..8c74918
--- /dev/null
+++ b/app/src/main/java/ru/risdeveau/geotracker/Data.kt
@@ -0,0 +1,13 @@
+/*
+ * Created by sweetbread
+ * Copyright (c) 2025. All rights reserved.
+ */
+
+package ru.risdeveau.geotracker
+
+import splitties.preferences.Preferences
+
+object SettingsPreferences : Preferences("settings") {
+    var username by stringPref("username", "anonimous")
+    var url by stringPref("url", "https://example.com")
+}
\ No newline at end of file
diff --git a/app/src/main/java/ru/risdeveau/geotracker/MainActivity.kt b/app/src/main/java/ru/risdeveau/geotracker/MainActivity.kt
index 182ad8a..67cf120 100644
--- a/app/src/main/java/ru/risdeveau/geotracker/MainActivity.kt
+++ b/app/src/main/java/ru/risdeveau/geotracker/MainActivity.kt
@@ -1,3 +1,8 @@
+/*
+ * Created by sweetbread
+ * Copyright (c) 2025. All rights reserved.
+ */
+
 package ru.risdeveau.geotracker
 
 import android.os.Bundle
@@ -7,11 +12,19 @@ import androidx.activity.enableEdgeToEdge
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.tooling.preview.Preview
+import kotlinx.coroutines.launch
 import ru.risdeveau.geotracker.ui.theme.GeoTrackerTheme
 
 class MainActivity : ComponentActivity() {
@@ -21,8 +34,22 @@ class MainActivity : ComponentActivity() {
         setContent {
             GeoTrackerTheme {
                 Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
-                    Box(Modifier.padding(innerPadding)) {
+                    Box(
+                        Modifier
+                            .padding(innerPadding)
+                            .fillMaxSize()) {
+                        var loading by remember { mutableStateOf(true) }
 
+                        if (loading) {
+                            CircularProgressIndicator(Modifier.align(Alignment.Center))
+                            LaunchedEffect(true) {
+                                launch {
+                                    if (!health(SettingsPreferences.url)) {
+                                        Settings()
+                                    }
+                                }
+                            }
+                        }
                     }
                 }
             }
@@ -30,18 +57,28 @@ class MainActivity : ComponentActivity() {
     }
 }
 
-@Composable
-fun Greeting(name: String, modifier: Modifier = Modifier) {
-    Text(
-        text = "Hello $name!",
-        modifier = modifier
-    )
+sealed class Screen {
+    object Main : Screen()
+    object Settings : Screen()
 }
 
-@Preview(showBackground = true)
 @Composable
-fun GreetingPreview() {
-    GeoTrackerTheme {
-        Greeting("Android")
+fun Settings(modifier: Modifier = Modifier) {
+    var username by remember { mutableStateOf("") }
+    var url by remember { mutableStateOf("") }
+
+
+    Box (modifier = modifier) {
+        OutlinedTextField(
+            value = username,
+            onValueChange = { username = it },
+            label = { Text("Username") }
+        )
+
+        OutlinedTextField(
+            value = url,
+            onValueChange = { url = it },
+            label = { Text("Server URL") }
+        )
     }
 }
\ No newline at end of file
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index a44a75c..87d0963 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -11,6 +11,7 @@ lifecycleRuntimeKtx = "2.8.7"
 activityCompose = "1.10.1"
 composeBom = "2024.04.01"
 logbackClassic = "1.2.11"
+splittiesFunPackAndroidBase = "3.0.0"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
@@ -33,6 +34,7 @@ ktor-client-core = { module = "io.ktor:ktor-client-core", version.ref = "ktor" }
 ktor-client-logging = { module = "io.ktor:ktor-client-logging", version.ref = "ktor" }
 ktor-client-okhttp = { module = "io.ktor:ktor-client-okhttp", version.ref = "ktor" }
 logback-classic = { module = "ch.qos.logback:logback-classic", version.ref = "logbackClassic" }
+splitties-base = { module = "com.louiscad.splitties:splitties-fun-pack-android-base", version.ref = "splittiesFunPackAndroidBase" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }