diff --git a/Azaion.Annotator/App.xaml.cs b/Azaion.Annotator/App.xaml.cs
index bfac05a..f161719 100644
--- a/Azaion.Annotator/App.xaml.cs
+++ b/Azaion.Annotator/App.xaml.cs
@@ -8,6 +8,7 @@ using Azaion.Annotator.Extensions;
 using LibVLCSharp.Shared;
 using MediatR;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using Serilog;
 using ILogger = Microsoft.Extensions.Logging.ILogger;
@@ -17,54 +18,63 @@ namespace Azaion.Annotator;
 
 public partial class App : Application
 {
-    private readonly ServiceProvider _serviceProvider;
+    private readonly IHost _host;
+    private readonly ILogger<App> _logger;
     private readonly IMediator _mediator;
-    
+
     public App()
     {
         Log.Logger = new LoggerConfiguration()
             .Enrich.FromLogContext()
-            .MinimumLevel.Warning()
+            .MinimumLevel.Information()
             .WriteTo.Console()
             .WriteTo.File(
                 path: "Logs/log.txt",
                 rollingInterval: RollingInterval.Day)
             .CreateLogger();
-        
-        var services = new ServiceCollection();
-        services.AddSingleton<MainWindow>();
-        services.AddSingleton<HelpWindow>();
-        services.AddMediatR(c => c.RegisterServicesFromAssembly(Assembly.GetExecutingAssembly()));
-        services.AddSingleton<LibVLC>(_ => new LibVLC());
-        services.AddSingleton<FormState>();
-        services.AddSingleton<MediaPlayer>(sp =>
-        {
-            var libVLC = sp.GetRequiredService<LibVLC>();
-            return new MediaPlayer(libVLC);
-        });
-        services.AddSingleton<Config>(_ => Config.Read());
-        services.AddSingleton<PlayerControlHandler>();
-        _serviceProvider = services.BuildServiceProvider();
-        _mediator = _serviceProvider.GetService<IMediator>()!;
+
+        _host = Host.CreateDefaultBuilder()
+            .ConfigureServices((context, services) =>
+            {
+                services.AddSingleton<MainWindow>();
+                services.AddSingleton<HelpWindow>();
+                services.AddMediatR(c => c.RegisterServicesFromAssembly(Assembly.GetExecutingAssembly()));
+                services.AddSingleton<LibVLC>(_ => new LibVLC());
+                services.AddSingleton<FormState>();
+                services.AddSingleton<MediaPlayer>(sp =>
+                {
+                    var libVLC = sp.GetRequiredService<LibVLC>();
+                    return new MediaPlayer(libVLC);
+                });
+                services.AddSingleton<IConfigRepository, FileConfigRepository>();
+                services.AddSingleton<Config>(sp => sp.GetRequiredService<IConfigRepository>().Get());
+                services.AddSingleton<PlayerControlHandler>();
+            })
+            .UseSerilog()
+            .Build();
+        _mediator = _host.Services.GetRequiredService<IMediator>();
+        _logger = _host.Services.GetRequiredService<ILogger<App>>();
         DispatcherUnhandledException += OnDispatcherUnhandledException;
     }
     
     private void OnDispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e)
     {
-        Log.Logger.Error(e.Exception, e.Exception.Message);
+        _logger.LogError(e.Exception, e.Exception.Message);
         e.Handled = true;
     }
 
     protected override void OnStartup(StartupEventArgs e)
     {
         EventManager.RegisterClassHandler(typeof(UIElement), UIElement.KeyDownEvent, new RoutedEventHandler(GlobalClick));
-        _serviceProvider.GetRequiredService<MainWindow>().Show();
+        _host.Start();
+        _host.Services.GetRequiredService<MainWindow>().Show();
+
+        base.OnStartup(e);
     }
 
     private void GlobalClick(object sender, RoutedEventArgs e)
     {
         var args = (KeyEventArgs)e;
-        
         _mediator.Publish(new KeyEvent(sender, args));
     }
 }
\ No newline at end of file
diff --git a/Azaion.Annotator/Azaion.Annotator.csproj b/Azaion.Annotator/Azaion.Annotator.csproj
index 92c88fc..e590b0d 100644
--- a/Azaion.Annotator/Azaion.Annotator.csproj
+++ b/Azaion.Annotator/Azaion.Annotator.csproj
@@ -14,11 +14,14 @@
       <PackageReference Include="LibVLCSharp" Version="3.8.2" />
       <PackageReference Include="LibVLCSharp.WPF" Version="3.8.2" />
       <PackageReference Include="MediatR" Version="12.2.0" />
+      <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
       <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
+      <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.0" />
       <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
       <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
       <PackageReference Include="RangeTree" Version="3.0.1" />
       <PackageReference Include="Serilog" Version="4.0.0" />
+      <PackageReference Include="Serilog.Extensions.Hosting" Version="8.0.0" />
       <PackageReference Include="Serilog.Extensions.Logging" Version="8.0.0" />
       <PackageReference Include="Serilog.Settings.Configuration" Version="8.0.1" />
       <PackageReference Include="Serilog.Sinks.Console" Version="6.0.0" />
diff --git a/Azaion.Annotator/DTO/Config.cs b/Azaion.Annotator/DTO/Config.cs
index c4a9980..57263eb 100644
--- a/Azaion.Annotator/DTO/Config.cs
+++ b/Azaion.Annotator/DTO/Config.cs
@@ -1,6 +1,7 @@
 using System.IO;
 using System.Reflection;
 using System.Text;
+using Microsoft.Extensions.Logging;
 using Newtonsoft.Json;
 using Size = System.Windows.Size;
 using Point = System.Windows.Point;
@@ -9,22 +10,10 @@ namespace Azaion.Annotator.DTO;
 
 public class Config
 {
-    private const string CONFIG_PATH = "config.json";
-    
-    private const string DEFAULT_VIDEO_DIR = "video";
-    
-    private const string DEFAULT_LABELS_DIR = "labels";
-    private const string DEFAULT_IMAGES_DIR = "images";
-    private const string DEFAULT_RESULTS_DIR = "results";
-    
-    private static readonly Size DefaultWindowSize = new(1280, 720);
-    private static readonly Point DefaultWindowLocation = new(100, 100);
-    
-    
-    public string VideosDirectory { get; set; } = DEFAULT_VIDEO_DIR;
-    public string LabelsDirectory { get; set; } = DEFAULT_LABELS_DIR;
-    public string ImagesDirectory { get; set; } = DEFAULT_IMAGES_DIR;
-    public string ResultsDirectory { get; set; } = DEFAULT_RESULTS_DIR;
+    public string VideosDirectory { get; set; }
+    public string LabelsDirectory { get; set; }
+    public string ImagesDirectory { get; set; }
+    public string ResultsDirectory { get; set; }
 
     public List<AnnotationClass> AnnotationClasses { get; set; } = [];
 
@@ -34,24 +23,44 @@ public class Config
     public Size WindowSize { get; set; }
     public Point WindowLocation { get; set; }
     public bool ShowHelpOnStart { get; set; }
+}
 
-    public void Save()
+public interface IConfigRepository
+{
+    public Config Get();
+    public void Save(Config config);
+}
+
+public class FileConfigRepository(ILogger<FileConfigRepository> logger) : IConfigRepository
+{
+    private const string CONFIG_PATH = "config.json";
+
+    private const string DEFAULT_VIDEO_DIR = "video";
+
+    private const string DEFAULT_LABELS_DIR = "labels";
+    private const string DEFAULT_IMAGES_DIR = "images";
+    private const string DEFAULT_RESULTS_DIR = "results";
+
+    private static readonly Size DefaultWindowSize = new(1280, 720);
+    private static readonly Point DefaultWindowLocation = new(100, 100);
+
+    public Config Get()
     {
-        File.WriteAllText(CONFIG_PATH, JsonConvert.SerializeObject(this, Formatting.Indented), Encoding.UTF8);
-    }
-    
-    public static Config Read()
-    {
-        string configFilePath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), CONFIG_PATH);
+        var exePath = Path.GetDirectoryName(AppDomain.CurrentDomain.BaseDirectory)!;
+        var configFilePath = Path.Combine(exePath, CONFIG_PATH);
+
+        logger.LogInformation($"exePath: {exePath}" );
+        logger.LogInformation($"configFilePath: {configFilePath}");
 
         if (!File.Exists(configFilePath))
         {
-            var exePath = Path.GetDirectoryName(AppDomain.CurrentDomain.BaseDirectory)!;
             return new Config
             {
                 VideosDirectory = Path.Combine(exePath, DEFAULT_VIDEO_DIR),
                 LabelsDirectory = Path.Combine(exePath, DEFAULT_LABELS_DIR),
                 ImagesDirectory = Path.Combine(exePath, DEFAULT_IMAGES_DIR),
+                ResultsDirectory = Path.Combine(exePath, DEFAULT_RESULTS_DIR),
+
                 WindowLocation = DefaultWindowLocation,
                 WindowSize = DefaultWindowSize,
                 ShowHelpOnStart = true
@@ -67,4 +76,9 @@ public class Config
             return new Config();
         }
     }
-}
\ No newline at end of file
+
+    public void Save(Config config)
+    {
+        File.WriteAllText(CONFIG_PATH, JsonConvert.SerializeObject(config, Formatting.Indented), Encoding.UTF8);
+    }
+}
diff --git a/Azaion.Annotator/MainWindow.xaml.cs b/Azaion.Annotator/MainWindow.xaml.cs
index 4913018..2ca2c71 100644
--- a/Azaion.Annotator/MainWindow.xaml.cs
+++ b/Azaion.Annotator/MainWindow.xaml.cs
@@ -22,7 +22,7 @@ public partial class MainWindow
     private readonly IMediator _mediator;
     private readonly FormState _formState;
 
-    private readonly Config _config;
+    private readonly IConfigRepository _configRepository;
     private readonly HelpWindow _helpWindow;
     
     public ObservableCollection<AnnotationClass> AnnotationClasses { get; set; } = new();
@@ -30,6 +30,7 @@ public partial class MainWindow
 
     private readonly TimeSpan _thresholdBefore = TimeSpan.FromMilliseconds(100);
     private readonly TimeSpan _thresholdAfter = TimeSpan.FromMilliseconds(300);
+    private readonly Config _config;
 
     public Dictionary<TimeSpan, List<YoloLabel>> AnnotationsDict { get; set; } = new();
     private IntervalTree<TimeSpan, List<YoloLabel>> Annotations { get; set; } = new();
@@ -37,7 +38,7 @@ public partial class MainWindow
     public MainWindow(LibVLC libVLC, MediaPlayer mediaPlayer,
         IMediator mediator,
         FormState formState,
-        Config config,
+        IConfigRepository configRepository,
         HelpWindow helpWindow)
     {
         InitializeComponent();
@@ -45,7 +46,8 @@ public partial class MainWindow
         _mediaPlayer = mediaPlayer;
         _mediator = mediator;
         _formState = formState;
-        _config = config;
+        _configRepository = configRepository;
+        _config = _configRepository.Get();
         _helpWindow = helpWindow;
         
         VideoView.Loaded += VideoView_Loaded;
@@ -232,7 +234,7 @@ public partial class MainWindow
         _mediaPlayer.Dispose();
         _libVLC.Dispose();
         _config.AnnotationClasses = AnnotationClasses.ToList();
-        _config.Save();
+        _configRepository.Save(_config);
         Application.Current.Shutdown();
     }