diff --git a/app/build.gradle b/app/build.gradle
index 198cd6a..1836d13 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -32,6 +32,8 @@
 
     implementation libs.appcompat
     implementation libs.material
+    implementation libs.activity
+    implementation libs.constraintlayout
     testImplementation libs.junit
     androidTestImplementation libs.ext.junit
     androidTestImplementation libs.espresso.core
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index dafd7c9..b1bbbb0 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -11,6 +11,10 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.CitrusClient"
-        tools:targetApi="31" />
+        tools:targetApi="31">
+        <activity
+            android:name=".HelloActivity"
+            android:exported="false" />
+    </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/com/example/citrusclient/HelloActivity.java b/app/src/main/java/com/example/citrusclient/HelloActivity.java
new file mode 100644
index 0000000..9f98bc6
--- /dev/null
+++ b/app/src/main/java/com/example/citrusclient/HelloActivity.java
@@ -0,0 +1,24 @@
+package com.example.citrusclient;
+
+import android.os.Bundle;
+
+import androidx.activity.EdgeToEdge;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.graphics.Insets;
+import androidx.core.view.ViewCompat;
+import androidx.core.view.WindowInsetsCompat;
+
+public class HelloActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        EdgeToEdge.enable(this);
+        setContentView(R.layout.activity_hello);
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
+            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
+            return insets;
+        });
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_hello.xml b/app/src/main/res/layout/activity_hello.xml
new file mode 100644
index 0000000..d81bb08
--- /dev/null
+++ b/app/src/main/res/layout/activity_hello.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".HelloActivity">
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 145dc5f..6731e75 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -9,6 +9,8 @@
 retrofit22 = "2.9.0"
 retrofit23 = "2.5.0"
 retrofit24 = "2.1.0"
+activity = "1.9.0"
+constraintlayout = "2.1.4"
 
 [libraries]
 junit = { group = "junit", name = "junit", version.ref = "junit" }
@@ -20,6 +22,8 @@
 retrofit22 = { group = "com.squareup.retrofit2", name = "converter-moshi", version.ref = "retrofit22" }
 retrofit23 = { group = "com.squareup.retrofit2", name = "converter-jackson", version.ref = "retrofit23" }
 retrofit24 = { group = "com.squareup.retrofit2", name = "converter-scalars", version.ref = "retrofit24" }
+activity = { group = "androidx.activity", name = "activity", version.ref = "activity" }
+constraintlayout = { group = "androidx.constraintlayout", name = "constraintlayout", version.ref = "constraintlayout" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }