diff --git a/android/app/build.gradle b/android/app/build.gradle
index f8502be..c60a710 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -22,6 +22,9 @@ if (flutterVersionName == null) {
 }
 
 apply plugin: 'com.android.application'
+// START: FlutterFire Configuration
+apply plugin: 'com.google.gms.google-services'
+// END: FlutterFire Configuration
 apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
diff --git a/android/app/google-services.json b/android/app/google-services.json
new file mode 100644
index 0000000..5b2674c
--- /dev/null
+++ b/android/app/google-services.json
@@ -0,0 +1,46 @@
+{
+  "project_info": {
+    "project_number": "655141330055",
+    "project_id": "gdev-annuaire",
+    "storage_bucket": "gdev-annuaire.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:655141330055:android:db10532c8a73cc9d1a2c22",
+        "android_client_info": {
+          "package_name": "com.example.gdev_annuaire"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "655141330055-sofj8l1em1q4ggn3eso91v1gnp128451.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyAxFULgOFom_Dsx6AVmcZdHGetDvtjGzbk"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "655141330055-sofj8l1em1q4ggn3eso91v1gnp128451.apps.googleusercontent.com",
+              "client_type": 3
+            },
+            {
+              "client_id": "655141330055-e3uim74419qgvjlt7svqk763q758qfak.apps.googleusercontent.com",
+              "client_type": 2,
+              "ios_info": {
+                "bundle_id": "com.example.gdevAnnuaire"
+              }
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}
\ No newline at end of file
diff --git a/android/build.gradle b/android/build.gradle
index 83ae220..9192654 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -7,6 +7,9 @@ buildscript {
 
     dependencies {
         classpath 'com.android.tools.build:gradle:7.1.2'
+        // START: FlutterFire Configuration
+        classpath 'com.google.gms:google-services:4.3.10'
+        // END: FlutterFire Configuration
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
diff --git a/ios/firebase_app_id_file.json b/ios/firebase_app_id_file.json
new file mode 100644
index 0000000..5e678d5
--- /dev/null
+++ b/ios/firebase_app_id_file.json
@@ -0,0 +1,7 @@
+{
+  "file_generated_by": "FlutterFire CLI",
+  "purpose": "FirebaseAppID & ProjectID for this Firebase app in this directory",
+  "GOOGLE_APP_ID": "1:655141330055:ios:82c8fec7ae27b2951a2c22",
+  "FIREBASE_PROJECT_ID": "gdev-annuaire",
+  "GCM_SENDER_ID": "655141330055"
+}
\ No newline at end of file
diff --git a/lib/firebase_options.dart b/lib/firebase_options.dart
new file mode 100644
index 0000000..942320f
--- /dev/null
+++ b/lib/firebase_options.dart
@@ -0,0 +1,82 @@
+// File generated by FlutterFire CLI.
+// ignore_for_file: lines_longer_than_80_chars, avoid_classes_with_only_static_members
+import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
+import 'package:flutter/foundation.dart'
+    show defaultTargetPlatform, kIsWeb, TargetPlatform;
+
+/// Default [FirebaseOptions] for use with your Firebase apps.
+///
+/// Example:
+/// ```dart
+/// import 'firebase_options.dart';
+/// // ...
+/// await Firebase.initializeApp(
+///   options: DefaultFirebaseOptions.currentPlatform,
+/// );
+/// ```
+class DefaultFirebaseOptions {
+  static FirebaseOptions get currentPlatform {
+    if (kIsWeb) {
+      return web;
+    }
+    switch (defaultTargetPlatform) {
+      case TargetPlatform.android:
+        return android;
+      case TargetPlatform.iOS:
+        return ios;
+      case TargetPlatform.macOS:
+        return macos;
+      case TargetPlatform.windows:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for windows - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      case TargetPlatform.linux:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for linux - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      default:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions are not supported for this platform.',
+        );
+    }
+  }
+
+  static const FirebaseOptions web = FirebaseOptions(
+    apiKey: 'AIzaSyB6eFpKM-FX31cZPRPbNwlj6VCoc1G3SeU',
+    appId: '1:655141330055:web:b262dc3d240a32a81a2c22',
+    messagingSenderId: '655141330055',
+    projectId: 'gdev-annuaire',
+    authDomain: 'gdev-annuaire.firebaseapp.com',
+    storageBucket: 'gdev-annuaire.appspot.com',
+  );
+
+  static const FirebaseOptions android = FirebaseOptions(
+    apiKey: 'AIzaSyAxFULgOFom_Dsx6AVmcZdHGetDvtjGzbk',
+    appId: '1:655141330055:android:db10532c8a73cc9d1a2c22',
+    messagingSenderId: '655141330055',
+    projectId: 'gdev-annuaire',
+    storageBucket: 'gdev-annuaire.appspot.com',
+  );
+
+  static const FirebaseOptions ios = FirebaseOptions(
+    apiKey: 'AIzaSyB6u7EpW4pvrR9gJGq4B7LrzesBV-sIq1I',
+    appId: '1:655141330055:ios:82c8fec7ae27b2951a2c22',
+    messagingSenderId: '655141330055',
+    projectId: 'gdev-annuaire',
+    storageBucket: 'gdev-annuaire.appspot.com',
+    iosClientId: '655141330055-e3uim74419qgvjlt7svqk763q758qfak.apps.googleusercontent.com',
+    iosBundleId: 'com.example.gdevAnnuaire',
+  );
+
+  static const FirebaseOptions macos = FirebaseOptions(
+    apiKey: 'AIzaSyB6u7EpW4pvrR9gJGq4B7LrzesBV-sIq1I',
+    appId: '1:655141330055:ios:82c8fec7ae27b2951a2c22',
+    messagingSenderId: '655141330055',
+    projectId: 'gdev-annuaire',
+    storageBucket: 'gdev-annuaire.appspot.com',
+    iosClientId: '655141330055-e3uim74419qgvjlt7svqk763q758qfak.apps.googleusercontent.com',
+    iosBundleId: 'com.example.gdevAnnuaire',
+  );
+}
diff --git a/lib/main.dart b/lib/main.dart
index bcaf73b..cd0ac5b 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,16 +1,41 @@
+// ignore_for_file: avoid_print
+
+import 'package:cloud_firestore/cloud_firestore.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-import 'package:hive_flutter/hive_flutter.dart';
+// import 'package:hive_flutter/hive_flutter.dart';
 import 'package:qr_flutter/qr_flutter.dart';
 import 'package:truncate/truncate.dart';
+import 'package:firebase_core/firebase_core.dart';
+import 'firebase_options.dart';
+import 'package:firebase_auth/firebase_auth.dart';
 
-late Box addressBox;
+// late Box addressBox;
+late FirebaseFirestore db;
+bool canAdd = false;
 List profiles = [];
 
 Future<void> main() async {
-  await Hive.initFlutter();
-  addressBox = await Hive.openBox("addressBox");
+  WidgetsFlutterBinding.ensureInitialized();
+
+  // await Hive.initFlutter();
+  await Firebase.initializeApp(
+    options: DefaultFirebaseOptions.currentPlatform,
+  );
+  db = FirebaseFirestore.instance;
+  // await eraseDB();
+  await FirebaseAuth.instance.signInAnonymously();
+  FirebaseAuth.instance.authStateChanges().listen((User? user) {
+    if (user == null) {
+      print('User is currently signed out!');
+    } else {
+      print('User is signed in!');
+    }
+  });
+
+  // addressBox = await Hive.openBox("addressBox");
   // await addressBox.clear();
+
   runApp(const MyApp());
 }
 
@@ -45,19 +70,19 @@ class _MyHomePageState extends State<MyHomePage> {
 
   @override
   Widget build(BuildContext context) {
-    profiles.clear();
-    addressBox.toMap().forEach((key, value) {
-      profiles.add(value);
-    });
+    // profiles.clear();
+    // addressBox.toMap().forEach((key, value) {
+    //   profiles.add(value);
+    // });
 
     return Scaffold(
       backgroundColor: Colors.orange[200],
-      body: profileTiles(context, profiles, refresh),
+      body: profileTiles(context, refresh),
     );
   }
 }
 
-Widget profileTiles(BuildContext context, List profiles, refresh) {
+Widget profileTiles(BuildContext context, refresh) {
   final double screenWidth = MediaQuery.of(context).size.width;
   int nbrColumn = 9;
   TextEditingController nameController = TextEditingController();
@@ -91,6 +116,10 @@ Widget profileTiles(BuildContext context, List profiles, refresh) {
           width: 150,
           child: TextField(
             controller: nameController,
+            onChanged: (a) {
+              canAddProfile(nameController.text, addressController.text);
+              // refresh();
+            },
             decoration: const InputDecoration(
               hintText: "Nom",
             ),
@@ -101,6 +130,10 @@ Widget profileTiles(BuildContext context, List profiles, refresh) {
           width: 470,
           child: TextField(
             controller: addressController,
+            onChanged: (a) {
+              canAddProfile(nameController.text, addressController.text);
+              // refresh();
+            },
             decoration: const InputDecoration(
               hintText: "Adresse",
             ),
@@ -110,39 +143,58 @@ Widget profileTiles(BuildContext context, List profiles, refresh) {
         IconButton(
           icon: const Icon(Icons.add_reaction_outlined),
           onPressed: (() async {
-            await addProfile(nameController.text, addressController.text);
-            refresh();
+            if (canAdd) {
+              await addProfile(nameController.text, addressController.text);
+              refresh();
+              canAdd = false;
+            }
           }),
         ),
+        const Spacer(),
+        const Text(
+          'Annuaire ĞDev',
+          style: TextStyle(fontSize: 20),
+        ),
+        const SizedBox(width: 80),
       ],
     )),
-    SliverGrid.count(
-        key: const Key('listWallets'),
-        crossAxisCount: nbrColumn,
-        childAspectRatio: 1,
-        crossAxisSpacing: 0,
-        mainAxisSpacing: 0,
-        children: <Widget>[
-          for (String profile in profiles)
-            Container(
-              color: Colors.orange[200],
-              child: Padding(
-                padding: const EdgeInsets.all(10),
-                child: Container(
-                  color: Colors.orange[100],
+    const SliverToBoxAdapter(child: SizedBox(height: 30)),
+    FutureBuilder(
+      future: getDbData(),
+      builder: (context, AsyncSnapshot<List>? snapshot) {
+        List result = snapshot?.data ?? [];
+        result.sort();
+        return SliverGrid.count(
+            key: const Key('listWallets'),
+            crossAxisCount: nbrColumn,
+            childAspectRatio: 1,
+            crossAxisSpacing: 0,
+            mainAxisSpacing: 0,
+            children: <Widget>[
+              for (String profile in result)
+                Container(
+                  color: Colors.orange[200],
                   child: Padding(
                     padding: const EdgeInsets.all(10),
-                    child: tile(
-                        context, profile.split(':')[0], profile.split(':')[1]),
+                    child: Container(
+                      color: Colors.orange[100],
+                      child: Padding(
+                        padding: const EdgeInsets.all(10),
+                        child: tile(context, profile.split(':')[0],
+                            profile.split(':')[1], refresh),
+                      ),
+                    ),
                   ),
                 ),
-              ),
-            ),
-        ]),
+            ]);
+      },
+    ),
   ]);
 }
 
-Widget tile(BuildContext context, String name, String address) {
+Widget tile(BuildContext context, String name, String address, refresh) {
+  int lastTap = DateTime.now().millisecondsSinceEpoch;
+  int consecutiveTaps = 0;
   return Container(
     color: Colors.orange[50],
     child: Padding(
@@ -150,11 +202,34 @@ Widget tile(BuildContext context, String name, String address) {
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.center,
           children: [
-            Text(name),
+            GestureDetector(
+              onTap: () {
+                int now = DateTime.now().millisecondsSinceEpoch;
+                if (now - lastTap < 400) {
+                  consecutiveTaps++;
+                  if (consecutiveTaps > 8) {
+                    print("DELETE PROFILE");
+                    deleteAddress(address, refresh);
+                  }
+                } else {
+                  consecutiveTaps = 0;
+                }
+                lastTap = now;
+              },
+              child: Text(
+                name,
+                style:
+                    const TextStyle(fontWeight: FontWeight.w600, fontSize: 17),
+              ),
+            ),
             const SizedBox(height: 3),
             InkWell(
               onTap: () => snackCopyKey(context, address),
-              child: Text(getShortPubkey(address)),
+              child: Text(
+                getShortPubkey(address),
+                style:
+                    const TextStyle(fontWeight: FontWeight.w500, fontSize: 17),
+              ),
             ),
             QrImageWidget(
               // gapless: false,
@@ -188,5 +263,81 @@ snackCopyKey(BuildContext context, String address) {
 }
 
 Future addProfile(String name, String address) async {
-  await addressBox.add('$name:$address');
+  final newProfile = <String, dynamic>{"name": name, "address": address};
+
+  db.collection("profiles").add(newProfile).then((DocumentReference doc) =>
+      print('DocumentSnapshot added with ID: ${doc.id}'));
+}
+
+Future<List> getDbData() async {
+  await db.collection("profiles").get().then((event) {
+    profiles.clear();
+    for (var doc in event.docs) {
+      final name = doc.data()['name'];
+      final address = doc.data()['address'];
+      profiles.add('$name:$address');
+      print("${doc.id} => ${doc.data()}");
+    }
+  });
+
+  return profiles;
+}
+
+Future eraseDB() async {
+  var collection = FirebaseFirestore.instance.collection('profiles');
+  var snapshots = await collection.get();
+  for (var doc in snapshots.docs) {
+    await doc.reference.delete();
+  }
+}
+
+Future deleteAddress(String address, refresh) async {
+  await db.collection("profiles").get().then((event) async {
+    profiles.clear();
+    for (var doc in event.docs) {
+      if (address == doc.data()['address']) {
+        await FirebaseFirestore.instance
+            .runTransaction((Transaction myTransaction) async {
+          myTransaction.delete(doc.reference);
+        });
+        refresh();
+        return;
+      }
+    }
+    // await doc.reference.delete();
+  });
+}
+
+bool isAddress(address) {
+  final RegExp regExp = RegExp(
+    r'^[a-zA-Z0-9]+$',
+    caseSensitive: false,
+    multiLine: false,
+  );
+
+  if (regExp.hasMatch(address) == true &&
+      address.length > 45 &&
+      address.length < 52) {
+    // canAdd = true;
+
+    return true;
+  } else {
+    // canAdd = false;
+    return false;
+  }
+}
+
+bool canAddProfile(String name, String address) {
+  if (name == '' || !isAddress(address)) {
+    return false;
+  }
+
+  for (var profile in profiles) {
+    final nameStored = profile.split(':')[0];
+    final addressStored = profile.split(':')[1];
+    if (address == addressStored || name == nameStored) return false;
+  }
+
+  canAdd = true;
+  return true;
 }
diff --git a/macos/Flutter/GeneratedPluginRegistrant.swift b/macos/Flutter/GeneratedPluginRegistrant.swift
index 0d56f51..e27042d 100644
--- a/macos/Flutter/GeneratedPluginRegistrant.swift
+++ b/macos/Flutter/GeneratedPluginRegistrant.swift
@@ -5,8 +5,14 @@
 import FlutterMacOS
 import Foundation
 
+import cloud_firestore
+import firebase_auth
+import firebase_core
 import path_provider_macos
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  FLTFirebaseFirestorePlugin.register(with: registry.registrar(forPlugin: "FLTFirebaseFirestorePlugin"))
+  FLTFirebaseAuthPlugin.register(with: registry.registrar(forPlugin: "FLTFirebaseAuthPlugin"))
+  FLTFirebaseCorePlugin.register(with: registry.registrar(forPlugin: "FLTFirebaseCorePlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
 }
diff --git a/macos/firebase_app_id_file.json b/macos/firebase_app_id_file.json
new file mode 100644
index 0000000..5e678d5
--- /dev/null
+++ b/macos/firebase_app_id_file.json
@@ -0,0 +1,7 @@
+{
+  "file_generated_by": "FlutterFire CLI",
+  "purpose": "FirebaseAppID & ProjectID for this Firebase app in this directory",
+  "GOOGLE_APP_ID": "1:655141330055:ios:82c8fec7ae27b2951a2c22",
+  "FIREBASE_PROJECT_ID": "gdev-annuaire",
+  "GCM_SENDER_ID": "655141330055"
+}
\ No newline at end of file
diff --git a/pubspec.lock b/pubspec.lock
index 9c1caad..4b567fa 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -36,6 +36,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
+  cloud_firestore:
+    dependency: "direct main"
+    description:
+      name: cloud_firestore
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.17"
+  cloud_firestore_platform_interface:
+    dependency: transitive
+    description:
+      name: cloud_firestore_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.5.7"
+  cloud_firestore_web:
+    dependency: transitive
+    description:
+      name: cloud_firestore_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.6.16"
   collection:
     dependency: transitive
     description:
@@ -78,6 +99,48 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "6.1.2"
+  firebase_auth:
+    dependency: "direct main"
+    description:
+      name: firebase_auth
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.3.19"
+  firebase_auth_platform_interface:
+    dependency: transitive
+    description:
+      name: firebase_auth_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.2.7"
+  firebase_auth_web:
+    dependency: transitive
+    description:
+      name: firebase_auth_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.3.16"
+  firebase_core:
+    dependency: "direct main"
+    description:
+      name: firebase_core
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.17.1"
+  firebase_core_platform_interface:
+    dependency: transitive
+    description:
+      name: firebase_core_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.4.0"
+  firebase_core_web:
+    dependency: transitive
+    description:
+      name: firebase_core_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.6.4"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -95,6 +158,11 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   hive:
     dependency: "direct main"
     description:
@@ -109,6 +177,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.1"
+  intl:
+    dependency: transitive
+    description:
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.17.0"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.4"
   lints:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 7914661..f60b6a8 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -19,6 +19,9 @@ dependencies:
   hive_flutter: ^1.1.0
 
   cupertino_icons: ^1.0.2
+  firebase_core: ^1.17.1
+  cloud_firestore: ^3.1.17
+  firebase_auth: ^3.3.19
 
 dev_dependencies:
   flutter_test: