diff --git a/Toolkit.Avalonia/ImageReader.cs b/Toolkit.Avalonia/ImageReader.cs
index af6857e..eee333c 100644
--- a/Toolkit.Avalonia/ImageReader.cs
+++ b/Toolkit.Avalonia/ImageReader.cs
@@ -6,7 +6,7 @@ namespace Toolkit.Avalonia;
 public class ImageReader(IImageResizer imageResizer) : 
     IImageReader
 {
-    public async Task<IImageDescriptor> Get(Stream stream, 
+    public IImageDescriptor Get(Stream stream, 
         int width, 
         int height, 
         bool maintainAspectRatio)
diff --git a/Toolkit.Foundation/AppService.cs b/Toolkit.Foundation/AppService.cs
index dd3f5e4..08c2d4a 100644
--- a/Toolkit.Foundation/AppService.cs
+++ b/Toolkit.Foundation/AppService.cs
@@ -6,14 +6,15 @@ public class AppService(IEnumerable<IInitialization> initializers,
     IPublisher publisher) :
     IHostedService
 {
-    public async Task StartAsync(CancellationToken cancellationToken)
+    public Task StartAsync(CancellationToken cancellationToken)
     {
         foreach (IInitialization initializer in initializers)
         {
-            await initializer.Initialize();
+            initializer.Initialize();
         }
 
         publisher.Publish<StartedEventArgs>();
+        return Task.CompletedTask;
     }
 
     public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
diff --git a/Toolkit.Foundation/CancelEventArgs.cs b/Toolkit.Foundation/CancelEventArgs.cs
index 46867e9..3f706f0 100644
--- a/Toolkit.Foundation/CancelEventArgs.cs
+++ b/Toolkit.Foundation/CancelEventArgs.cs
@@ -1,3 +1,3 @@
 namespace Toolkit.Foundation;
 
-public record CancelEventArgs<TSender>(TSender sender);
\ No newline at end of file
+public record CancelEventArgs<TSender>(TSender Sender);
\ No newline at end of file
diff --git a/Toolkit.Foundation/ComponentHost.cs b/Toolkit.Foundation/ComponentHost.cs
index e6cfb31..739a5bc 100644
--- a/Toolkit.Foundation/ComponentHost.cs
+++ b/Toolkit.Foundation/ComponentHost.cs
@@ -14,7 +14,8 @@ public class ComponentHost(IServiceProvider services,
     {
     }
 
-    public TConfiguration? GetConfiguration<TConfiguration>() where TConfiguration : ComponentConfiguration
+    public TConfiguration? GetConfiguration<TConfiguration>()
+        where TConfiguration : ComponentConfiguration
     {
         return Services.GetService<TConfiguration>();
     }
@@ -23,7 +24,7 @@ public class ComponentHost(IServiceProvider services,
     {
         foreach (IInitialization initializer in initializers)
         {
-            await initializer.Initialize();
+            initializer.Initialize();
         }
 
         foreach (IHostedService service in hostedServices)
diff --git a/Toolkit.Foundation/ComponentInitializer.cs b/Toolkit.Foundation/ComponentInitializer.cs
index 856cdd0..50acd8c 100644
--- a/Toolkit.Foundation/ComponentInitializer.cs
+++ b/Toolkit.Foundation/ComponentInitializer.cs
@@ -1,4 +1,5 @@
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace Toolkit.Foundation;
 
@@ -9,7 +10,7 @@ public class ComponentInitializer(IEnumerable<IComponent> components,
     IServiceProvider provider) :
     IInitialization
 {
-    public async Task Initialize()
+    public void Initialize()
     {
         foreach (IComponent component in components)
         {
@@ -45,7 +46,7 @@ public class ComponentInitializer(IEnumerable<IComponent> components,
                 provider.GetRequiredService<IServiceProvider>()));
 
             hosts.Add(host);
-            await host.StartAsync();
+            host.Start();
         }
     }
 }
\ No newline at end of file
diff --git a/Toolkit.Foundation/ConfigurationInitializer.cs b/Toolkit.Foundation/ConfigurationInitializer.cs
index c17b03c..c9389f8 100644
--- a/Toolkit.Foundation/ConfigurationInitializer.cs
+++ b/Toolkit.Foundation/ConfigurationInitializer.cs
@@ -9,7 +9,7 @@ public class ConfigurationInitializer<TConfiguration>(IConfigurationReader<TConf
     where TConfiguration :
     class
 {
-    public Task Initialize()
+    public void Initialize()
     {
         if (!reader.TryRead(out TConfiguration? configuration))
         {
@@ -21,6 +21,5 @@ public class ConfigurationInitializer<TConfiguration>(IConfigurationReader<TConf
         }
 
         publisher.PublishUI(new ActivatedEventArgs<TConfiguration>(configuration));
-        return Task.CompletedTask;
     }
 }
\ No newline at end of file
diff --git a/Toolkit.Foundation/IAsyncInitialization.cs b/Toolkit.Foundation/IAsyncInitialization.cs
new file mode 100644
index 0000000..4d2064d
--- /dev/null
+++ b/Toolkit.Foundation/IAsyncInitialization.cs
@@ -0,0 +1,6 @@
+namespace Toolkit.Foundation;
+
+public interface IAsyncInitialization
+{
+    Task Initialize();
+}
\ No newline at end of file
diff --git a/Toolkit.Foundation/IConfigurationInitializer.cs b/Toolkit.Foundation/IConfigurationInitializer.cs
index a573f89..4d347d3 100644
--- a/Toolkit.Foundation/IConfigurationInitializer.cs
+++ b/Toolkit.Foundation/IConfigurationInitializer.cs
@@ -4,5 +4,5 @@ public interface IConfigurationInitializer<TConfiguration>
     where TConfiguration :
     class
 {
-    Task Initialize();
+    void Initialize();
 }
\ No newline at end of file
diff --git a/Toolkit.Foundation/IImageReader.cs b/Toolkit.Foundation/IImageReader.cs
index 4b468fd..f156209 100644
--- a/Toolkit.Foundation/IImageReader.cs
+++ b/Toolkit.Foundation/IImageReader.cs
@@ -2,7 +2,7 @@
 
 public interface IImageReader
 {
-    Task<IImageDescriptor> Get(Stream stream, 
+    IImageDescriptor Get(Stream stream, 
         int width, 
         int height, 
         bool maintainAspectRatio = false);
diff --git a/Toolkit.Foundation/IInitialization.cs b/Toolkit.Foundation/IInitialization.cs
index a5dc5f6..3e08677 100644
--- a/Toolkit.Foundation/IInitialization.cs
+++ b/Toolkit.Foundation/IInitialization.cs
@@ -2,5 +2,5 @@
 
 public interface IInitialization
 {
-    Task Initialize();
-}
\ No newline at end of file
+    void Initialize();
+}
diff --git a/Toolkit.Foundation/Observable.cs b/Toolkit.Foundation/Observable.cs
index 6bd75c6..317148d 100644
--- a/Toolkit.Foundation/Observable.cs
+++ b/Toolkit.Foundation/Observable.cs
@@ -56,17 +56,15 @@ public partial class Observable(IServiceProvider provider,
         Disposer.Dispose(this);
     }
 
-    public virtual Task Initialize()
+    public virtual void Initialize()
     {
         if (IsInitialized)
         {
-            return Task.CompletedTask;
+            return;
         }
 
         IsInitialized = true;
-
         Subscriber.Subscribe(this);
-        return Task.CompletedTask;
     }
 
     [ObservableProperty]
diff --git a/Toolkit.Foundation/ObservableCollection.cs b/Toolkit.Foundation/ObservableCollection.cs
index 06f96ff..e71afee 100644
--- a/Toolkit.Foundation/ObservableCollection.cs
+++ b/Toolkit.Foundation/ObservableCollection.cs
@@ -157,8 +157,7 @@ public partial class ObservableCollection<TItem> :
     }
 
     public TItem Add<T>(params object?[] parameters)
-            where T :
-        TItem
+        where T : TItem
     {
         T? item = Factory.Create<T>(args =>
         {
@@ -416,19 +415,17 @@ public partial class ObservableCollection<TItem> :
         IsCompatibleObject(value) ?
         IndexOf((TItem)value!) : -1;
 
-    public virtual Task Initialize()
+    public virtual void Initialize()
     {
         if (IsInitialized)
         {
-            return Task.CompletedTask;
+            return;
         }
 
         IsInitialized = true;
 
         Subscriber.Subscribe(this);
         Synchronize();
-
-        return Task.CompletedTask;
     }
 
     public TItem Insert<T>(int index = 0,