Implemented first steps of the security layer, and dockerized as well.

mobile/app/lib/main.dart

@@ -4,6 +4,7 @@ import 'package:app/components/conversations_list_widget.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:provider/provider.dart';
+import 'package:network_tools/network_tools.dart';
 
 import 'package:app/theme.dart';
 
@@ -57,9 +58,23 @@ class MyApp extends ConsumerWidget {
     const Center(child: ConversationsListWidget()),
   ];
 
+  Future<void> test() async {
+    for (final ActiveHost activeHost in await MdnsScanner.searchMdnsDevices()) {
+      final MdnsInfo? mdnsInfo = await activeHost.mdnsInfo;
+      print('''
+        Address: ${activeHost.address}
+        Port: ${mdnsInfo!.mdnsPort}
+        ServiceType: ${mdnsInfo.mdnsServiceType}
+        MdnsName: ${mdnsInfo.getOnlyTheStartOfMdnsName()}
+      ''');
+      // Do anything with the active host
+    }
+
+  }
+
   // This widget is the root of your application.
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
+  Widget build(BuildContext context, WidgetRef ref) {o
     final selectedIndex = ref.watch(selectedIndexProvider);
 
     return MaterialApp(

mobile/app/pubspec.lock

@@ -25,6 +25,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.7"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: "7cf60b9f0cc88203c5a190b4cd62a99feea42759a7fa695010eb5de1c0b2252a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.0"
   async:
     dependency: transitive
     description:
@@ -193,6 +201,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.0"
+  csv:
+    dependency: transitive
+    description:
+      name: csv
+      sha256: c6aa2679b2a18cb57652920f674488d89712efaf4d3fdf2e537215b35fc19d6c
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.0.0"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -201,6 +217,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.8"
+  dart_ping:
+    dependency: transitive
+    description:
+      name: dart_ping
+      sha256: "2f5418d0a5c64e53486caaac78677b25725b1e13c33c5be834ce874ea18bd24f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.0.1"
   data_table_2:
     dependency: transitive
     description:
@@ -696,6 +720,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.0.0"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: "623a88c9594aa774443aa3eb2d41807a48486b5613e67599fb4c41c0ad47c340"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
   mapbox_search:
     dependency: transitive
     description:
@@ -752,6 +784,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.0"
+  multicast_dns:
+    dependency: transitive
+    description:
+      name: multicast_dns
+      sha256: "982c4cc4cda5f98dd477bddfd623e8e4bd1014e7dbf9e7b05052e14a5b550b99"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.2+7"
   native_device_orientation:
     dependency: transitive
     description:
@@ -768,6 +808,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.0"
+  network_tools:
+    dependency: "direct main"
+    description:
+      name: network_tools
+      sha256: cf5726a3c3edd82de5f6d6511cb618259a083225ccc2bdb8a55d87b37014cadf
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.2"
   octo_image:
     dependency: transitive
     description:
@@ -920,6 +968,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.10.2"
+  process_run:
+    dependency: transitive
+    description:
+      name: process_run
+      sha256: "8d9c6198b98fbbfb511edd42e7364e24d85c163e47398919871b952dc86a423e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.14.2"
   provider:
     dependency: "direct main"
     description:
@@ -928,6 +984,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.1.2"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "40d3ab1bbd474c4c2328c91e3a7df8c6dd629b79ece4c4bd04bee496a224fb0c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
   qr:
     dependency: transitive
     description:
@@ -984,6 +1048,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.0"
+  sembast:
+    dependency: transitive
+    description:
+      name: sembast
+      sha256: "2a768b145bee5c72ae78c2641842ee348a6d345172af1070a497293c44f65ae1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.7.1+2"
   shared_preferences:
     dependency: transitive
     description:
@@ -1221,6 +1293,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.2"
+  universal_io:
+    dependency: transitive
+    description:
+      name: universal_io
+      sha256: "1722b2dcc462b4b2f3ee7d188dad008b6eb4c40bbd03a3de451d82c78bba9aad"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
   url_launcher:
     dependency: transitive
     description:
@@ -1413,6 +1493,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.4"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: "75769501ea3489fca56601ff33454fe45507ea3bfb014161abc3b43ae25989d5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.2"
 sdks:
   dart: ">=3.4.3 <4.0.0"
   flutter: ">=3.22.0"

mobile/app/pubspec.yaml

@@ -49,6 +49,7 @@ dependencies:
   camera: ^0.11.0+1
   image_picker: ^1.1.2
   file_picker: ^8.0.6
+  network_tools: ^5.0.2
 dev_dependencies:
   flutter_test:
     sdk: flutter