diff --git a/Android/app/build.gradle b/Android/app/build.gradle
deleted file mode 100644
index fa8ec02..0000000
--- a/Android/app/build.gradle
+++ /dev/null
@@ -1,47 +0,0 @@
-plugins {
-    id 'com.android.application'
-    id 'org.jetbrains.kotlin.android'
-}
-
-android {
-    namespace 'com.example.mathseduc'
-    compileSdk 34
-
-    defaultConfig {
-        applicationId "com.example.mathseduc"
-        minSdk 21
-        targetSdk 33
-        versionCode 1
-        versionName "1.0"
-
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-    }
-
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
-        }
-    }
-    compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
-    }
-    kotlinOptions {
-        jvmTarget = '1.8'
-    }
-
-}
-
-dependencies {
-    implementation 'androidx.core:core-ktx:1.7.0'
-    implementation 'androidx.appcompat:appcompat:1.6.1'
-    implementation 'com.google.android.material:material:1.11.0'
-    testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
-
-    implementation("com.squareup.okhttp3:okhttp:4.10.0")
-    implementation("com.google.code.gson:gson:2.10.1")
-    implementation "org.mindrot:jbcrypt:0.4"
-}
\ No newline at end of file
diff --git a/Android/app/src/main/java/com/example/mathseduc/ConnexionPlayerActivity.kt b/Android/app/src/main/java/com/example/mathseduc/ConnexionPlayerActivity.kt
deleted file mode 100644
index 3cb4685..0000000
--- a/Android/app/src/main/java/com/example/mathseduc/ConnexionPlayerActivity.kt
+++ /dev/null
@@ -1,79 +0,0 @@
-package com.example.mathseduc
-
-import android.app.AlertDialog
-import android.content.Intent
-import android.os.Bundle
-import android.widget.Button
-import android.widget.EditText
-import android.widget.ImageButton
-import android.widget.Toast
-import androidx.appcompat.app.AppCompatActivity
-import com.example.mathseduc.controllers.ControllerPlayer
-class ConnexionPlayerActivity : AppCompatActivity() {
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_connexion_player)
-
-        val buttonLogin = findViewById<Button>(R.id.buttonLogin)
-        val editTextNickname = findViewById<EditText>(R.id.editTextNickname)
-        val editTextPassword = findViewById<EditText>(R.id.editTextPassword)
-
-        buttonLogin.setOnClickListener {
-            val nickname = editTextNickname.text.toString()
-            val password = editTextPassword.text.toString()
-
-            val isAuthenticated = ControllerPlayer.authenticateUser(nickname,password)
-            if (isAuthenticated != -1) {
-                // Save authentication status for global accessibility
-                val intent = Intent(this, MainActivity::class.java)
-                startActivity(intent)
-
-                MainActivity.idPlayerConnected = isAuthenticated
-
-                Toast.makeText(this, "Connexion réussi, bienvenue $nickname !", Toast.LENGTH_SHORT).show()
-            } else {
-                // Show an error toast
-                Toast.makeText(this, "Connexion échoué. Veuillez réessayer.", Toast.LENGTH_SHORT).show()
-            }
-        }
-
-        val btnReturn = findViewById<ImageButton>(R.id.btnReturn)
-        val btnRegister = findViewById<Button>(R.id.registerButton)
-
-        btnReturn.setOnClickListener {
-            //val intent = Intent(this, MainActivity::class.java)
-            //startActivity(intent)
-            this.finish();
-        }
-
-        btnRegister.setOnClickListener {
-            showRegisterDialog()
-        }
-    }
-
-    private fun showRegisterDialog() {
-        val builder = AlertDialog.Builder(this)
-        val inflater = layoutInflater
-        val dialogView = inflater.inflate(R.layout.dialog_register, null)
-
-        val etNickname = dialogView.findViewById<EditText>(R.id.nickname)
-        val etPassword = dialogView.findViewById<EditText>(R.id.password)
-        val btnSave = dialogView.findViewById<Button>(R.id.buttonSave)
-        val btnDismiss = dialogView.findViewById<Button>(R.id.buttonDismiss)
-
-        val dialog = builder.setView(dialogView).create()
-
-        btnSave.setOnClickListener {
-            val nickname = etNickname.text.toString()
-            val password = etPassword.text.toString()
-            // Faites quelque chose avec le nom d'utilisateur et le mot de passe
-            dialog.dismiss()
-        }
-
-        btnDismiss.setOnClickListener {
-            dialog.dismiss()
-        }
-
-        dialog.show()
-    }
-}
diff --git a/Android/app/src/main/java/com/example/mathseduc/CreateLobbyActivity.kt b/Android/app/src/main/java/com/example/mathseduc/CreateLobbyActivity.kt
deleted file mode 100644
index 8980582..0000000
--- a/Android/app/src/main/java/com/example/mathseduc/CreateLobbyActivity.kt
+++ /dev/null
@@ -1,81 +0,0 @@
-package com.example.mathseduc
-
-import android.content.Intent
-import android.os.Bundle
-import android.widget.*
-import androidx.appcompat.app.AppCompatActivity
-import com.example.mathseduc.controllers.ControllerChapter
-import com.example.mathseduc.controllers.ControllerLobby
-import com.example.mathseduc.controllers.ControllerUtiliser
-import okhttp3.MultipartBody
-import org.json.JSONObject
-
-
-class CreateLobbyActivity : AppCompatActivity() {
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_create_lobby)
-
-        var spinnerChapter = findViewById<Spinner>(R.id.spinnerChapter)
-
-        // Fetch chapters from API
-        val chaptersFromApi = ControllerChapter.getChapters()
-
-        // Populate Spinner with fetched chapters
-        if (chaptersFromApi != null) {
-            val chapterNames = chaptersFromApi.map { it.name }.toTypedArray()
-
-            val adapter = ArrayAdapter(this, android.R.layout.simple_spinner_item, chapterNames)
-            adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
-            spinnerChapter.adapter = adapter
-        }
-
-        val buttonCreateLobby = findViewById<Button>(R.id.buttonCreateLobby)
-        buttonCreateLobby.setOnClickListener {
-            val lobbyName = findViewById<EditText>(R.id.editTextLobbyName).text.toString()
-            val password = findViewById<EditText>(R.id.editTextPassword).text.toString()
-            val nbPlayers = findViewById<EditText>(R.id.editTextNbPlayers).text.toString()
-            val difficulty = findViewById<Spinner>(R.id.spinnerDifficulty).selectedItemPosition + 1
-            val selectedChapterPosition = findViewById<Spinner>(R.id.spinnerChapter).selectedItemPosition
-            val idChapter = chaptersFromApi?.getOrNull(selectedChapterPosition)?.id?: -1
-
-            if (lobbyName.isNullOrBlank() || password.isNullOrBlank() || nbPlayers.isNullOrBlank() || nbPlayers.toInt() <= 0) {
-                Toast.makeText(this, "Échec de la création du lobby. Veuillez réessayer.", Toast.LENGTH_SHORT).show()
-            }
-            else
-            {
-                // Create form data
-                val formDataBuilder = MultipartBody.Builder().setType(MultipartBody.FORM)
-
-                // Add fields to form data
-                formDataBuilder.addFormDataPart("name", lobbyName)
-                formDataBuilder.addFormDataPart("password", password)
-                formDataBuilder.addFormDataPart("nbplayers", nbPlayers.toString())
-                formDataBuilder.addFormDataPart("idplayercreator", MainActivity.idPlayerConnected.toString())
-                formDataBuilder.addFormDataPart("idchapter", idChapter.toString())
-                formDataBuilder.addFormDataPart("difficulty", difficulty.toString())
-
-                // Appeler la fonction pour créer le lobby
-                val idLobbyCreatedSuccessfully = ControllerLobby.createLobby(formDataBuilder)
-
-                // Vérifier si la création du lobby a réussi
-                if (idLobbyCreatedSuccessfully != -1) {
-                    val formDataBuilder = MultipartBody.Builder().setType(MultipartBody.FORM)
-                    formDataBuilder.addFormDataPart("idplayer", MainActivity.idPlayerConnected.toString())
-                    formDataBuilder.addFormDataPart("idlobby", idLobbyCreatedSuccessfully.toString())
-                    formDataBuilder.addFormDataPart("playertime", "0")
-
-                    ControllerUtiliser.createUtiliserByIdLobby(formDataBuilder)
-
-                    val intent = Intent(this, ServerDetailsActivity::class.java)
-                    intent.putExtra("serverName", lobbyName)
-                    intent.putExtra("lobbyId", idLobbyCreatedSuccessfully)
-                    startActivity(intent)
-                } else {
-                    Toast.makeText(this, "Échec de la création du lobby. Veuillez réessayer.", Toast.LENGTH_SHORT).show()
-                }
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/Android/app/src/main/java/com/example/mathseduc/MultiActivity.kt b/Android/app/src/main/java/com/example/mathseduc/MultiActivity.kt
deleted file mode 100644
index a90f1d4..0000000
--- a/Android/app/src/main/java/com/example/mathseduc/MultiActivity.kt
+++ /dev/null
@@ -1,161 +0,0 @@
-package com.example.mathseduc
-
-import android.content.Context
-import android.content.Intent
-import android.os.Bundle
-import android.os.Handler
-import android.os.Looper
-import android.util.Log
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.*
-import androidx.appcompat.app.AppCompatActivity
-import com.example.mathseduc.controllers.ControllerChapter
-import com.example.mathseduc.controllers.ControllerLobby
-import com.example.mathseduc.controllers.ControllerUtiliser
-import com.example.mathseduc.models.Lobby
-import okhttp3.MultipartBody
-
-class MultiActivity : AppCompatActivity() {
-
-    private lateinit var lobbyAdapter: LobbyAdapter
-    private val handler = Handler(Looper.getMainLooper())
-    private val refreshInterval: Long = 3000 // Refresh every 3 seconds
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_multi)
-
-        var btnAddLobby = findViewById<Button>(R.id.btnAddLobby)
-
-        val serverList = ControllerLobby.getLobbies()
-
-        if (serverList != null) {
-
-            val listView = findViewById<ListView>(R.id.listView)
-
-            lobbyAdapter = LobbyAdapter(this, serverList)
-            listView.adapter = lobbyAdapter
-
-            listView.setOnItemClickListener { _, _, position, _ ->
-                if (ControllerLobby.getNbPlayerInLobby(serverList[position].id) < serverList[position].nbplayers) {
-                    val formDataBuilder = MultipartBody.Builder().setType(MultipartBody.FORM)
-                    formDataBuilder.addFormDataPart("idplayer", MainActivity.idPlayerConnected.toString())
-                    formDataBuilder.addFormDataPart("idlobby", serverList[position].id.toString())
-                    formDataBuilder.addFormDataPart("playertime", "0")
-
-                    ControllerUtiliser.createUtiliserByIdLobby(formDataBuilder)
-
-                    val intent = Intent(this, ServerDetailsActivity::class.java)
-                    intent.putExtra("serverName", serverList[position].name)
-                    intent.putExtra("lobbyId", serverList[position].id)
-                    startActivity(intent)
-                } else {
-                    Toast.makeText(this, "Oh nan, le serveur est déjà plein ! Réessayer plus tard.", Toast.LENGTH_SHORT).show()
-                }
-            }
-
-            // Schedule periodic refresh using Handler and Runnable
-            handler.postDelayed(refreshRunnable, refreshInterval)
-
-        } else {
-            Log.e("MultiActivity", "Error fetching server list")
-        }
-
-        btnAddLobby.setOnClickListener {
-            val intent = Intent(this, CreateLobbyActivity::class.java)
-            startActivity(intent)
-        }
-
-        val btnReturn = findViewById<ImageButton>(R.id.btnReturn)
-
-        btnReturn.setOnClickListener {
-            //val intent = Intent(this, MainActivity::class.java)
-            //startActivity(intent)
-            finish()
-        }
-    }
-
-    override fun onDestroy() {
-        super.onDestroy()
-        // Remove callbacks to prevent memory leaks
-        handler.removeCallbacks(refreshRunnable)
-    }
-
-    private val refreshRunnable: Runnable = object : Runnable {
-        override fun run() {
-            // Refresh the server list
-            val serverList = ControllerLobby.getLobbies()
-            if (serverList != null) {
-                lobbyAdapter.clear()
-                lobbyAdapter.addAll(serverList)
-                lobbyAdapter.notifyDataSetChanged()
-            }
-            // Schedule the next refresh
-            handler.postDelayed(this, refreshInterval)
-        }
-    }
-
-    class LobbyAdapter(context: Context, lobbies: ArrayList<Lobby>) :
-        ArrayAdapter<Lobby>(context, 0, lobbies), View.OnClickListener {
-
-        private val mContext: Context
-        private val mLobbies: ArrayList<Lobby>
-
-        private var selectedItem = -1
-
-        // Get Access to Context and Data Array
-        init {
-            mContext = context
-            mLobbies = lobbies
-        }
-
-        override fun getCount(): Int {
-            return mLobbies.size
-        }
-
-        override fun getItemId(position: Int): Long {
-            return mLobbies[position].id.toLong()
-        }
-
-        override fun getItem(position: Int): Lobby {
-            return mLobbies[position]
-        }
-
-        override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
-            var currentLobbyView = convertView
-            if (currentLobbyView == null) {
-                currentLobbyView =
-                    LayoutInflater.from(context).inflate(R.layout.list_view_lobby, parent, false)
-            }
-
-            val name = currentLobbyView!!.findViewById<TextView>(R.id.name)
-            val nbplayers = currentLobbyView!!.findViewById<TextView>(R.id.nbplayers)
-            val idchapter = currentLobbyView!!.findViewById<TextView>(R.id.idchapter)
-            val difficulty = currentLobbyView!!.findViewById<TextView>(R.id.difficulty)
-
-            name.text = mLobbies[position].name
-            nbplayers.text = ControllerLobby.getNbPlayerInLobby(mLobbies[position].id).toString() + "/" + mLobbies[position].nbplayers.toString()
-            idchapter.text = ControllerChapter.getChapterNameById(mLobbies[position].idchapter)
-            difficulty.text = mLobbies[position].difficulty.toString()
-
-            return currentLobbyView
-        }
-
-        fun setSelectedItem(position: Int) {
-            selectedItem = position
-            notifyDataSetChanged()
-        }
-
-        fun getSelectedItem(): Lobby? {
-            if (selectedItem != -1)
-                return mLobbies[selectedItem]
-            else
-                return null
-        }
-
-        override fun onClick(p0: View?) {
-        }
-    }
-}
diff --git a/Android/app/src/main/java/com/example/mathseduc/QuizMultiActivity.kt b/Android/app/src/main/java/com/example/mathseduc/QuizMultiActivity.kt
deleted file mode 100644
index 222247e..0000000
--- a/Android/app/src/main/java/com/example/mathseduc/QuizMultiActivity.kt
+++ /dev/null
@@ -1,68 +0,0 @@
-package com.example.mathseduc
-
-import android.os.Bundle
-import android.os.CountDownTimer
-import android.widget.Button
-import android.widget.ProgressBar
-import android.widget.Toast
-import androidx.appcompat.app.AppCompatActivity
-import com.example.mathseduc.controllers.ControllerLobby
-import com.example.mathseduc.controllers.ControllerQuestion
-
-class QuizMultiActivity : AppCompatActivity() {
-
-    private lateinit var countDownTimer: CountDownTimer
-
-    var progressBarValue : Int = 0
-    var chronoValue : Int = 0
-
-
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_quiz_multi)
-
-        val lobbyId = intent.getIntExtra("lobbyId", -1)
-
-        var progressBar1 = findViewById<ProgressBar>(R.id.progressBar1)
-        var chrono = findViewById<ProgressBar>(R.id.chrono)
-
-        progressBar1.max = 100
-        chrono.max = 30
-
-        val toto = ControllerQuestion.getQuestionsForLobby(ControllerLobby.getIdQuestionsLobby(lobbyId))
-
-        var incrementeButton = findViewById<Button>(R.id.buttonValider)
-
-        // Initialiser le CountDownTimer
-        countDownTimer = object : CountDownTimer(30*1000, 1000) {
-            override fun onTick(millisUntilFinished: Long) {
-                // Incrémenter la valeur de la ProgressBar chaque seconde
-                chronoValue++
-                chrono.progress = chronoValue
-                progressBarValue++
-                progressBar1.progress = progressBarValue
-                
-            }
-
-            override fun onFinish() {
-                // Code à exécuter lorsque le timer est terminé
-            }
-        }
-
-        incrementeButton.setOnClickListener {
-            progressBarValue += 10
-            progressBar1.progress = progressBarValue
-        }
-
-        // Démarrer le CountDownTimer
-        countDownTimer.start()
-    }
-
-    override fun onDestroy() {
-        super.onDestroy()
-        // Arrêter le CountDownTimer pour éviter les fuites de mémoire
-        countDownTimer.cancel()
-    }
-
-}
\ No newline at end of file
diff --git a/Android/app/src/main/java/com/example/mathseduc/ServerDetailsActivity.kt b/Android/app/src/main/java/com/example/mathseduc/ServerDetailsActivity.kt
deleted file mode 100644
index 95dcbf3..0000000
--- a/Android/app/src/main/java/com/example/mathseduc/ServerDetailsActivity.kt
+++ /dev/null
@@ -1,159 +0,0 @@
-package com.example.mathseduc
-
-import android.content.Context
-import android.content.Intent
-import android.os.Bundle
-import android.os.Handler
-import android.os.Looper
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.ArrayAdapter
-import android.widget.Button
-import android.widget.ListView
-import android.widget.TextView
-import androidx.activity.OnBackPressedCallback
-import androidx.appcompat.app.AppCompatActivity
-import com.example.mathseduc.controllers.ControllerLobby
-import com.example.mathseduc.controllers.ControllerPlayer
-import com.example.mathseduc.controllers.ControllerUtiliser
-import com.example.mathseduc.models.Player
-import okhttp3.MultipartBody
-
-class ServerDetailsActivity : AppCompatActivity() {
-
-    private var playerList: List<Player> = emptyList()
-    private lateinit var playerAdapter: PlayerAdapter
-    private val handler = Handler(Looper.getMainLooper())
-    private val refreshInterval: Long = 2000
-
-    private val onBackPressedCallback: OnBackPressedCallback = object : OnBackPressedCallback(true) {
-        override fun handleOnBackPressed() {
-            myBackPressed()
-        }
-    }
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        onBackPressedDispatcher.addCallback(this, onBackPressedCallback)
-        setContentView(R.layout.activity_server_details)
-
-        val serverName = intent.getStringExtra("serverName")
-
-        val serverNameTextView = findViewById<TextView>(R.id.titleServerDetails)
-        serverNameTextView.text = serverName
-
-        val lobbyId = intent.getIntExtra("lobbyId", -1)
-
-        if (savedInstanceState != null) {
-            playerList = savedInstanceState?.getParcelableArrayList("playerList") ?: emptyList()
-        } else {
-            val playerId = ControllerPlayer.getPlayersIdFromLobbyId(lobbyId)
-            if (playerId != null) {
-                playerList = playerId.mapNotNull { playerId ->
-                    ControllerPlayer.getPlayerInfoById(playerId.toString())
-                }
-            }
-        }
-
-        val listViewPlayers = findViewById<ListView>(R.id.listViewPlayers)
-        playerAdapter = PlayerAdapter(this, playerList)
-        listViewPlayers.adapter = playerAdapter
-
-        handler.postDelayed(refreshRunnable, refreshInterval)
-
-        val btnLaunchQuiz = findViewById<Button>(R.id.btnLaunchQuiz)
-
-        if (ControllerLobby.playerCreatorIdPresentInLobby(MainActivity.idPlayerConnected, lobbyId)) {
-            btnLaunchQuiz.visibility = View.VISIBLE
-            btnLaunchQuiz.setOnClickListener {
-
-                val formDataBuilder = MultipartBody.Builder().setType(MultipartBody.FORM)
-                formDataBuilder.addFormDataPart("launched", "1")
-
-                ControllerLobby.updateLobbyLauched(lobbyId,formDataBuilder)
-
-                val intent = Intent(this, QuizMultiActivity::class.java)
-                intent.putExtra("lobbyId", lobbyId)
-                startActivity(intent)
-            }
-        } else {
-            btnLaunchQuiz.visibility = View.GONE
-        }
-    }
-
-    override fun onSaveInstanceState(outState: Bundle) {
-        super.onSaveInstanceState(outState)
-        outState.putParcelableArrayList("playerList", ArrayList(playerList))
-    }
-
-    private val refreshRunnable: Runnable = object : Runnable {
-        override fun run() {
-            val lobbyId = intent.getIntExtra("lobbyId", -1)
-
-            val playerId = ControllerPlayer.getPlayersIdFromLobbyId(lobbyId)
-            if (playerId != null) {
-                playerList = playerId.mapNotNull { playerId ->
-                    ControllerPlayer.getPlayerInfoById(playerId.toString())
-                }
-                playerAdapter.clear()
-                playerAdapter.addAll(playerList)
-                playerAdapter.notifyDataSetChanged()
-            }
-
-            val btnLaunchQuiz = findViewById<Button>(R.id.btnLaunchQuiz)
-
-            if (ControllerLobby.playerCreatorIdPresentInLobby(MainActivity.idPlayerConnected, lobbyId)) {
-                btnLaunchQuiz.visibility = View.VISIBLE
-            } else {
-                btnLaunchQuiz.visibility = View.GONE
-            }
-
-            if(ControllerLobby.lobbyIsLaunched(lobbyId)){
-                val intent = Intent(this@ServerDetailsActivity, QuizMultiActivity::class.java)
-                intent.putExtra("lobbyId", lobbyId)
-                startActivity(intent)
-                return
-            }
-
-            handler.postDelayed(this, refreshInterval)
-        }
-    }
-
-    private fun myBackPressed() {
-        val lobbyId = intent.getIntExtra("lobbyId", -1)
-
-        ControllerUtiliser.DeleteUtiliserForLobby(MainActivity.idPlayerConnected, lobbyId)
-
-        if (ControllerLobby.playerCreatorIdPresentInLobby(MainActivity.idPlayerConnected, lobbyId)) {
-            val idNextPlayerCreator = ControllerUtiliser.getIdNextPlayerInLobby(lobbyId)
-
-            if (idNextPlayerCreator == -1) {
-                ControllerLobby.deleteLobby(lobbyId)
-            } else {
-                val formDataBuilder = MultipartBody.Builder().setType(MultipartBody.FORM)
-                formDataBuilder.addFormDataPart("idplayercreator", idNextPlayerCreator.toString())
-                ControllerLobby.updateLobbyIdCreatorLobby(lobbyId, formDataBuilder)
-            }
-        }
-        handler.removeCallbacks(refreshRunnable)
-        finish()
-    }
-
-    class PlayerAdapter(context: Context, players: List<Player>) :
-        ArrayAdapter<Player>(context, 0, players) {
-
-        override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
-            var currentPlayerView = convertView
-            if (currentPlayerView == null) {
-                currentPlayerView =
-                    LayoutInflater.from(context).inflate(R.layout.list_view_player, parent, false)
-            }
-
-            val playerNameTextView = currentPlayerView!!.findViewById<TextView>(R.id.playerName)
-            playerNameTextView.text = getItem(position)?.nickname ?: "Unknown"
-
-            return currentPlayerView
-        }
-    }
-}
diff --git a/Android/app/src/main/res/drawable/arrow_back.png b/Android/app/src/main/res/drawable/arrow_back.png
deleted file mode 100644
index 351de9f..0000000
Binary files a/Android/app/src/main/res/drawable/arrow_back.png and /dev/null differ
diff --git a/Android/app/src/main/res/drawable/arrow_back_small.png b/Android/app/src/main/res/drawable/arrow_back_small.png
deleted file mode 100644
index ab26d2f..0000000
Binary files a/Android/app/src/main/res/drawable/arrow_back_small.png and /dev/null differ
diff --git a/Android/app/src/main/res/drawable/arrow_small.png b/Android/app/src/main/res/drawable/arrow_small.png
deleted file mode 100644
index b3bb29e..0000000
Binary files a/Android/app/src/main/res/drawable/arrow_small.png and /dev/null differ
diff --git a/Android/app/src/main/res/drawable/chrono.xml b/Android/app/src/main/res/drawable/chrono.xml
deleted file mode 100644
index 53e36e8..0000000
--- a/Android/app/src/main/res/drawable/chrono.xml
+++ /dev/null
@@ -1,27 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <item android:id="@android:id/background">
-        <shape android:shape="ring"
-            android:thickness="10dp"
-            android:useLevel="false">
-
-            <solid android:color="@color/black"/>
-
-        </shape>
-    </item>
-
-    <item android:id="@+id/chrono">
-
-        <shape android:shape="ring"
-            android:thickness="10dp"
-            android:useLevel="true">
-
-            <solid android:color="@color/white"/>
-
-        </shape>
-
-
-    </item>
-
-</layer-list>
\ No newline at end of file
diff --git a/Android/app/src/main/res/drawable/left_arrow.png b/Android/app/src/main/res/drawable/left_arrow.png
deleted file mode 100644
index e875641..0000000
Binary files a/Android/app/src/main/res/drawable/left_arrow.png and /dev/null differ
diff --git a/Android/app/src/main/res/drawable/question_border.xml b/Android/app/src/main/res/drawable/question_border.xml
deleted file mode 100644
index 434fbd1..0000000
--- a/Android/app/src/main/res/drawable/question_border.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android"
-    android:shape="rectangle">
-
-    <!-- View border color and width -->
-    <stroke
-        android:width="1dp"
-        android:color="@color/white" >
-    </stroke>
-
-    <!-- The radius makes the corners rounded -->
-    <corners
-        android:radius="2dp"   >
-    </corners>
-
-</shape>
\ No newline at end of file
diff --git a/Android/app/src/main/res/drawable/rounded_corner.xml b/Android/app/src/main/res/drawable/rounded_corner.xml
deleted file mode 100644
index ade94df..0000000
--- a/Android/app/src/main/res/drawable/rounded_corner.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android"
-    android:shape="rectangle">
-    <solid android:color="@color/white" />
-    <corners android:radius="10dp" />
-    <stroke android:width="1dp"
-    android:color="@color/grey"/>
-</shape>
\ No newline at end of file
diff --git a/Android/app/src/main/res/drawable/top_rounded_corner.xml b/Android/app/src/main/res/drawable/top_rounded_corner.xml
deleted file mode 100644
index 2bd2065..0000000
--- a/Android/app/src/main/res/drawable/top_rounded_corner.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android">
-    <corners android:topLeftRadius="20dp"
-        android:topRightRadius="20dp"/>
-    <solid android:color="@color/grey"/>
-</shape>
\ No newline at end of file
diff --git a/Android/app/src/main/res/font/math_educ_font.ttf b/Android/app/src/main/res/font/math_educ_font.ttf
deleted file mode 100644
index 3d85ed9..0000000
Binary files a/Android/app/src/main/res/font/math_educ_font.ttf and /dev/null differ
diff --git a/Android/app/src/main/res/layout/activity_connexion_player.xml b/Android/app/src/main/res/layout/activity_connexion_player.xml
deleted file mode 100644
index cd2a55c..0000000
--- a/Android/app/src/main/res/layout/activity_connexion_player.xml
+++ /dev/null
@@ -1,112 +0,0 @@
-<?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:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".ConnexionPlayerActivity">
-    <!--<Button
-        android:id="@+id/btnReturn"
-        android:layout_width="100dp"
-        android:layout_height="100dp"
-        android:layout_gravity="start"
-        android:layout_marginTop="16dp"
-        android:text="@string/fleche"
-        android:background="@android:color/transparent"
-        android:textSize="70sp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.051"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />-->
-
-    <ImageButton
-        android:id="@+id/btnReturn"
-        android:layout_width="50dp"
-        android:layout_height="50dp"
-        android:layout_gravity="start"
-        android:layout_marginTop="16dp"
-        android:background="@drawable/arrow_small"
-        android:scaleType="center"
-        android:contentDescription="@string/retour"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.030"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="vertical"
-        android:padding="25dp"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        tools:ignore="MissingConstraints">
-
-        <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            android:layout_marginBottom="15dp"
-            android:fontFamily="@font/math_educ_font"
-            android:text="@string/connexion"
-            android:textColor="@color/white"
-            android:textSize="50sp" />
-
-        <!--<TextView
-        android:id="@+id/errorTextView"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginBottom="15dp"
-        android:text=""
-        android:textAlignment="center"
-        android:textColor="@android:color/holo_red_dark"
-        android:textSize="20sp" /> -->
-
-        <EditText
-            android:id="@+id/editTextNickname"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            android:autofillHints=""
-            android:background="@drawable/rounded_corner"
-            android:hint="@string/nom_d_utilisateur"
-            android:inputType="text"
-            android:minHeight="50dp"
-            android:padding="8dp"
-            tools:ignore="RtlSymmetry" />
-
-        <EditText
-            android:id="@+id/editTextPassword"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            android:layout_marginTop="15dp"
-            android:autofillHints=""
-            android:background="@drawable/rounded_corner"
-            android:hint="@string/mot_de_passe"
-            android:inputType="textPassword"
-            android:minHeight="50dp"
-            android:padding="8dp"
-            tools:ignore="RtlSymmetry" />
-
-        <Button
-            android:id="@+id/buttonLogin"
-            android:layout_width="wrap_content"
-            android:layout_height="55dp"
-            android:layout_gravity="center"
-            android:layout_marginTop="13dp"
-            android:backgroundTint="@color/turquoise"
-            android:text="@string/se_connecter" />
-
-        <Button
-            android:id="@+id/registerButton"
-            android:layout_width="wrap_content"
-            android:layout_height="55dp"
-            android:layout_gravity="center"
-            android:layout_marginTop="3dp"
-            android:backgroundTint="@color/blue"
-            android:text="@string/s_inscrire" />
-    </LinearLayout>
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/Android/app/src/main/res/layout/activity_create_lobby.xml b/Android/app/src/main/res/layout/activity_create_lobby.xml
deleted file mode 100644
index b1631df..0000000
--- a/Android/app/src/main/res/layout/activity_create_lobby.xml
+++ /dev/null
@@ -1,75 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:padding="16dp"
-    android:background="#000000">
-
-    <EditText
-        android:id="@+id/editTextLobbyName"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:hint="Lobby Name"
-        android:background="#FFFFFF"
-        android:textColor="#000000"
-        android:layout_marginBottom="16dp"/>
-
-    <EditText
-        android:id="@+id/editTextPassword"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:hint="Password"
-        android:inputType="textPassword"
-        android:background="#FFFFFF"
-        android:textColor="#000000"
-        android:layout_below="@id/editTextLobbyName"
-        android:layout_marginTop="8dp"
-        android:layout_marginBottom="16dp"/>
-
-    <EditText
-        android:id="@+id/editTextNbPlayers"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:hint="Number of Players"
-        android:inputType="number"
-        android:background="#FFFFFF"
-        android:textColor="#000000"
-        android:layout_below="@id/editTextPassword"
-        android:layout_marginTop="8dp"
-        android:layout_marginBottom="16dp"/>
-
-    <Spinner
-        android:id="@+id/spinnerDifficulty"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_below="@id/editTextNbPlayers"
-        android:layout_marginTop="8dp"
-        android:background="#FFFFFF"
-        android:textColor="#000000"
-        android:entries="@array/difficulty_array"
-        android:prompt="@string/difficulty_prompt"
-        />
-
-    <Spinner
-        android:id="@+id/spinnerChapter"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_below="@id/spinnerDifficulty"
-        android:layout_marginTop="8dp"
-        android:background="#FFFFFF"
-        android:textColor="#000000"
-        android:entries="@array/chapter_array"
-        android:prompt="@string/chapter_prompt"
-        />
-
-    <Button
-        android:id="@+id/buttonCreateLobby"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Create Lobby"
-        android:background="#4CAF50"
-        android:textColor="#FFFFFF"
-        android:layout_below="@id/spinnerChapter"
-        android:layout_marginTop="16dp"/>
-</RelativeLayout>
\ No newline at end of file
diff --git a/Android/app/src/main/res/layout/activity_main.xml b/Android/app/src/main/res/layout/activity_main.xml
deleted file mode 100644
index 762baed..0000000
--- a/Android/app/src/main/res/layout/activity_main.xml
+++ /dev/null
@@ -1,54 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:gravity="center"
-    android:orientation="vertical"
-    android:weightSum="10"
-    tools:context=".MainActivity">
-
-
-    <FrameLayout
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_weight="1">
-
-        <ImageView
-            android:id="@+id/background_image"
-            android:layout_width="160dp"
-            android:layout_height="130dp"
-            android:layout_gravity="center"
-            android:contentDescription="@string/app_name"
-            android:scaleType="centerCrop"
-            android:src="@drawable/logo" />
-    </FrameLayout>
-
-
-    <Button
-        android:id="@+id/btnSolo"
-        android:layout_width="370dp"
-        android:layout_height="wrap_content"
-        android:layout_weight="0.25"
-        android:backgroundTint="@color/green"
-        android:text="@string/solo" />
-
-    <Button
-        android:id="@+id/btnMulti"
-        android:layout_width="370dp"
-        android:layout_height="wrap_content"
-        android:layout_weight="0.25"
-        android:layout_marginTop="10dp"
-        android:backgroundTint="@color/orange"
-        android:text="@string/multiplayer" />
-
-    <Button
-        android:id="@+id/btnConnexion"
-        android:layout_width="200dp"
-        android:layout_height="wrap_content"
-        android:layout_weight="0.25"
-        android:layout_marginTop="10dp"
-        android:backgroundTint="@color/grey"
-        android:text="@string/connexion" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/Android/app/src/main/res/layout/activity_multi.xml b/Android/app/src/main/res/layout/activity_multi.xml
deleted file mode 100644
index 2b66deb..0000000
--- a/Android/app/src/main/res/layout/activity_multi.xml
+++ /dev/null
@@ -1,60 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="vertical"
-    tools:context=".MultiActivity">
-
-    <ImageButton
-        android:id="@+id/btnReturn"
-        android:layout_width="50dp"
-        android:layout_height="50dp"
-        android:layout_gravity="start"
-        android:layout_marginTop="16dp"
-        android:background="@drawable/arrow_small"
-        android:scaleType="center"
-        android:contentDescription="@string/retour"
-        android:layout_marginStart="15dp"/>
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="horizontal"
-        android:layout_marginVertical="10dp">
-
-        <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_marginStart="20dp"
-            android:layout_weight="95"
-            android:layout_gravity="center"
-            android:fontFamily="@font/math_educ_font"
-            android:text="@string/listLobbies"
-            android:textColor="@color/white"
-            android:textSize="40sp" />
-
-        <Button
-            android:id="@+id/btnAddLobby"
-            android:layout_width="140dp"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center"
-            android:layout_marginEnd="20dp"
-            android:layout_weight="5"
-            android:backgroundTint="@color/blue"
-            android:text="@string/addLobby" />
-
-    </LinearLayout>
-
-
-    <include layout="@layout/header_list_lobby" />
-
-    <ListView
-        android:id="@+id/listView"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="85"
-        android:background="@color/white" />
-
-
-</LinearLayout>
diff --git a/Android/app/src/main/res/layout/activity_quiz_multi.xml b/Android/app/src/main/res/layout/activity_quiz_multi.xml
deleted file mode 100644
index 1a44e15..0000000
--- a/Android/app/src/main/res/layout/activity_quiz_multi.xml
+++ /dev/null
@@ -1,204 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <ProgressBar
-        android:id="@+id/progressBar1"
-        android:layout_weight="0.05"
-        style="?android:attr/progressBarStyleHorizontal"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"/>
-
-    <ProgressBar
-        android:id="@+id/progressBar2"
-        android:layout_weight="0.05"
-        style="?android:attr/progressBarStyleHorizontal"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <ProgressBar
-        android:id="@+id/progressBar3"
-        android:layout_weight="0.05"
-        style="?android:attr/progressBarStyleHorizontal"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <ProgressBar
-        android:id="@+id/progressBar4"
-        android:layout_weight="0.05"
-        style="?android:attr/progressBarStyleHorizontal"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-
-    <ProgressBar
-        android:id="@+id/chrono"
-        android:layout_weight="0.05"
-        android:paddingHorizontal="10dp"
-        style="?android:attr/progressBarStyle"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:indeterminateOnly="false"
-        android:rotation="-90"
-        android:progressDrawable="@drawable/chrono"/>
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:paddingVertical="20dp"
-        android:orientation="horizontal">
-
-        <Space
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_weight="1" />
-
-        <TextView
-            android:id="@+id/textView"
-            android:layout_width="0dp"
-            android:layout_height="match_parent"
-            android:layout_gravity="center"
-            android:background="@drawable/question_border"
-            android:gravity="center"
-            android:text="Question"
-            android:layout_weight="5"
-            android:textColor="@color/white"
-            android:textSize="20sp" />
-
-        <Space
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_weight="1" />
-    </LinearLayout>
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="vertical">
-
-        <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:paddingBottom="10dp"
-            android:orientation="horizontal">
-
-            <Space
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_weight="0.25" />
-
-            <Button
-                android:id="@+id/button"
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_weight="1"
-                android:backgroundTint="@color/blue"
-                android:text="Answer1" />
-
-            <Space
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_weight="0.5" />
-
-            <Button
-                android:id="@+id/button2"
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_weight="1"
-                android:backgroundTint="@color/green"
-                android:text="Answer2" />
-
-            <Space
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_weight="0.25" />
-        </LinearLayout>
-
-        <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:orientation="horizontal">
-
-            <Space
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_weight="0.25" />
-
-            <Button
-                android:id="@+id/button3"
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_weight="1"
-                android:backgroundTint="@color/orange"
-                android:text="Answer3" />
-
-            <Space
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_weight="0.5" />
-
-            <Button
-                android:id="@+id/button4"
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_weight="1"
-                android:backgroundTint="@color/purple_500"
-                android:text="Answer4" />
-
-            <Space
-                android:layout_width="0dp"
-                android:layout_height="wrap_content"
-                android:layout_weight="0.25" />
-
-        </LinearLayout>
-
-    </LinearLayout>
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1"
-        android:gravity="center"
-        android:orientation="horizontal">
-
-        <Space
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="1" />
-
-
-        <Button
-            android:id="@+id/buttonPasser"
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:backgroundTint="@color/red"
-            android:text="Passer" />
-
-        <Space
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="0.25" />
-
-
-        <Button
-            android:id="@+id/buttonValider"
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:backgroundTint="@color/green"
-            android:text="Valider" />
-
-        <Space
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="1" />
-
-
-    </LinearLayout>
-
-</LinearLayout>
\ No newline at end of file
diff --git a/Android/app/src/main/res/layout/activity_server_details.xml b/Android/app/src/main/res/layout/activity_server_details.xml
deleted file mode 100644
index 5b3ad16..0000000
--- a/Android/app/src/main/res/layout/activity_server_details.xml
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="vertical"
-    android:paddingLeft="16dp"
-    android:paddingTop="16dp"
-    android:paddingRight="16dp"
-    android:paddingBottom="16dp"
-    tools:context=".ServerDetailsActivity">
-
-    <TextView
-        android:id="@+id/titleServerDetails"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:text="LobbyTitle"
-        android:textColor="@color/white"
-        android:textSize="20dp"
-        android:paddingBottom="16dp"
-        android:layout_gravity="center"/>
-
-    <ListView
-        android:id="@+id/listViewPlayers"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="75"
-        android:background="@color/white" />
-
-    <Button
-        android:id="@+id/btnLaunchQuiz"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"/>
-</LinearLayout>
-
diff --git a/Android/app/src/main/res/layout/dialog_register.xml b/Android/app/src/main/res/layout/dialog_register.xml
deleted file mode 100644
index fa5b562..0000000
--- a/Android/app/src/main/res/layout/dialog_register.xml
+++ /dev/null
@@ -1,90 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-    <LinearLayout 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:layout_width="350dp"
-        android:layout_height="wrap_content"
-        android:orientation="vertical"
-        android:background="@drawable/rounded_corner"
-        android:layout_gravity="center">
-
-        <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            android:layout_marginBottom="15dp"
-            android:paddingTop="2dp"
-            android:fontFamily="@font/math_educ_font"
-            android:text="@string/creer_compte"
-            android:textColor="@color/black"
-            android:textSize="40sp"/>
-
-        <!--<TextView
-            android:id="@+id/errorTextView"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_marginBottom="15dp"
-            android:text=""
-            android:textAlignment="center"
-            android:textColor="@android:color/holo_red_dark"
-            android:textSize="20sp" /> -->
-
-        <EditText
-            android:id="@+id/nickname"
-            android:layout_width="320dp"
-            android:layout_height="wrap_content"
-            android:background="@drawable/rounded_corner"
-            android:hint="@string/nom_d_utilisateur"
-            android:layout_gravity="center_horizontal"
-            android:paddingStart="8dp"
-            android:inputType="text"
-            android:minHeight="50dp"
-            android:autofillHints=""
-            tools:ignore="RtlSymmetry" />
-
-        <EditText
-            android:id="@+id/password"
-            android:layout_width="320dp"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="18dp"
-            android:background="@drawable/rounded_corner"
-            android:layout_gravity="center_horizontal"
-            android:hint="@string/mot_de_passe"
-            android:inputType="textPassword"
-            android:minHeight="50dp"
-            android:paddingStart="8dp"
-            android:autofillHints=""
-            tools:ignore="RtlSymmetry" />
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="horizontal"
-        android:gravity="end"
-        android:layout_marginTop="15dp">
-
-        <Button
-            android:id="@+id/buttonDismiss"
-            android:layout_width="wrap_content"
-            android:layout_height="55dp"
-            android:layout_marginEnd="10dp"
-            android:backgroundTint="@color/blackgrey"
-            android:text="@string/fermer"
-            android:textColor="@color/white"
-            style="?android:attr/buttonBarButtonStyle" />
-
-        <Button
-            android:id="@+id/buttonSave"
-            android:layout_width="wrap_content"
-            android:layout_height="55dp"
-            android:layout_marginEnd="15dp"
-            android:backgroundTint="@color/blue"
-            android:text="@string/enregistrer"
-            android:textColor="@color/white"
-            style="?android:attr/buttonBarButtonStyle" />
-
-    </LinearLayout>
-
-
-</LinearLayout>
\ No newline at end of file
diff --git a/Android/app/src/main/res/layout/header_list_lobby.xml b/Android/app/src/main/res/layout/header_list_lobby.xml
deleted file mode 100644
index 668f86f..0000000
--- a/Android/app/src/main/res/layout/header_list_lobby.xml
+++ /dev/null
@@ -1,27 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="horizontal"
-    android:layout_marginTop="5dp"
-    android:background="@drawable/top_rounded_corner"
-    android:padding="16dp">
-
-    <TextView
-        android:layout_width="0dp"
-        android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:text="@string/lobby"
-        android:textColor="@android:color/white"
-        android:textSize="18sp"
-        android:textStyle="bold" />
-
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/nbPlayer"
-        android:textColor="@android:color/white"
-        android:textSize="18sp"
-        android:textStyle="bold" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/Android/app/src/main/res/layout/list_view_lobby.xml b/Android/app/src/main/res/layout/list_view_lobby.xml
deleted file mode 100644
index c795019..0000000
--- a/Android/app/src/main/res/layout/list_view_lobby.xml
+++ /dev/null
@@ -1,52 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="45dp" >
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="horizontal"
-        android:paddingLeft="10dp"
-        android:paddingRight="10dp"
-        android:paddingTop="4dp">
-
-        <TextView
-            android:id="@+id/name"
-            android:layout_width="0dp"
-            android:layout_height="match_parent"
-            android:layout_weight="0.4"
-            android:gravity="left|center_vertical"
-            android:text="Name"
-            android:textSize="18dp" />
-
-        <TextView
-            android:id="@+id/difficulty"
-            android:layout_width="0dp"
-            android:layout_weight="0.2"
-            android:layout_height="match_parent"
-            android:gravity="center"
-            android:textSize="14dp"
-            android:text="Difficulty"/>
-
-        <TextView
-            android:id="@+id/idchapter"
-            android:layout_width="0dp"
-            android:layout_weight="0.2"
-            android:layout_height="match_parent"
-            android:gravity="center"
-            android:textSize="14dp"
-            android:text="idChapter"/>
-
-        <TextView
-            android:id="@+id/nbplayers"
-            android:layout_width="0dp"
-            android:layout_weight="0.2"
-            android:layout_height="match_parent"
-            android:gravity="center"
-            android:textSize="14dp"
-            android:text="NbPlayers"/>
-
-    </LinearLayout>
-
-</FrameLayout>
\ No newline at end of file
diff --git a/Android/app/src/main/res/layout/list_view_player.xml b/Android/app/src/main/res/layout/list_view_player.xml
deleted file mode 100644
index 653eedc..0000000
--- a/Android/app/src/main/res/layout/list_view_player.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="60dp" >
-
-    <!-- res/layout/list_view_player.xml -->
-    <TextView
-        xmlns:android="http://schemas.android.com/apk/res/android"
-        android:id="@+id/playerName"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:padding="16dp"
-        android:textSize="18sp"
-        android:textColor="@color/black"/>
-
-
-</FrameLayout>
-
diff --git a/Android/app/src/main/res/mipmap-anydpi-v33/ic_launcher.xml b/Android/app/src/main/res/mipmap-anydpi-v33/ic_launcher.xml
deleted file mode 100644
index 6f3b755..0000000
--- a/Android/app/src/main/res/mipmap-anydpi-v33/ic_launcher.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
-    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
diff --git a/Android/app/src/main/res/values-night/themes.xml b/Android/app/src/main/res/values-night/themes.xml
deleted file mode 100644
index c28b873..0000000
--- a/Android/app/src/main/res/values-night/themes.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
-    <!-- Base application theme. -->
-    <style name="Theme.MathsEduc" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
-        <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_200</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
-        <item name="colorOnPrimary">@color/black</item>
-        <!-- Secondary brand color. -->
-        <item name="colorSecondary">@color/teal_200</item>
-        <item name="colorSecondaryVariant">@color/teal_200</item>
-        <item name="colorOnSecondary">@color/black</item>
-        <!-- Status bar color. -->
-        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
-        <!-- Customize your theme here. -->
-    </style>
-</resources>
\ No newline at end of file
diff --git a/Android/build.gradle b/Android/build.gradle
deleted file mode 100644
index ab2b874..0000000
--- a/Android/build.gradle
+++ /dev/null
@@ -1,6 +0,0 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
-plugins {
-    id 'com.android.application' version '7.4.2' apply false
-    id 'com.android.library' version '7.4.2' apply false
-    id 'org.jetbrains.kotlin.android' version '1.8.0' apply false
-}
\ No newline at end of file
diff --git a/Android/settings.gradle b/Android/settings.gradle
deleted file mode 100644
index 90a62af..0000000
--- a/Android/settings.gradle
+++ /dev/null
@@ -1,16 +0,0 @@
-pluginManagement {
-    repositories {
-        google()
-        mavenCentral()
-        gradlePluginPortal()
-    }
-}
-dependencyResolutionManagement {
-    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
-    repositories {
-        google()
-        mavenCentral()
-    }
-}
-rootProject.name = "MathsEduc"
-include ':app'