diff --git a/RBLNews.Web/Models/AppSettingsModel.cs b/RBLNews.Shared/Models/AppSettingsModel.cs
similarity index 69%
rename from RBLNews.Web/Models/AppSettingsModel.cs
rename to RBLNews.Shared/Models/AppSettingsModel.cs
index 53e9c38..24d434a 100644
--- a/RBLNews.Web/Models/AppSettingsModel.cs
+++ b/RBLNews.Shared/Models/AppSettingsModel.cs
@@ -1,4 +1,4 @@
-namespace RBLNews.Web.Models;
+namespace RBLNews.Shared.Models;
 
 public class AppSettingsModel 
 {
diff --git a/RBLNews.Shared/Services/Contracts/IConfigService.cs b/RBLNews.Shared/Services/Contracts/IConfigService.cs
new file mode 100644
index 0000000..1a07ef1
--- /dev/null
+++ b/RBLNews.Shared/Services/Contracts/IConfigService.cs
@@ -0,0 +1,8 @@
+using RBLNews.Shared.Models;
+
+namespace RBLNews.Shared.Services.Contracts;
+
+public interface IConfigService
+{
+	AppSettingsModel AppSettings { get; }
+}
\ No newline at end of file
diff --git a/RBLNews.Shared/Services/FeedDataService.cs b/RBLNews.Shared/Services/FeedDataService.cs
index 4262b19..baa645b 100644
--- a/RBLNews.Shared/Services/FeedDataService.cs
+++ b/RBLNews.Shared/Services/FeedDataService.cs
@@ -2,6 +2,8 @@
 using System.Net.Http.Json;
 using RBLFeederCommon.Models.RssFeed;
 
+using RBLNews.Shared.Services.Contracts;
+
 namespace RBLNews.Shared.Services
 {
     public interface IFeedDataService
@@ -15,7 +17,7 @@ namespace RBLNews.Shared.Services
 
     public class FeedDataService : IFeedDataService
     {
-        private readonly EnvironmentVariablesService _environmentVariablesService;
+        private readonly IConfigService _configService;
 
         private static readonly HttpClient httpClient = new();
 
@@ -23,15 +25,14 @@ namespace RBLNews.Shared.Services
         
         public Action DataChanged { get; set; }
 
-
-        public FeedDataService(EnvironmentVariablesService environmentVariablesService)
+        public FeedDataService(IConfigService configService)
         {
-            this._environmentVariablesService = environmentVariablesService;
+            this._configService = configService;
         }
         
         public async Task LoadFeeds()
         {
-            Feeds = await httpClient.GetFromJsonAsync<RssVM>($"{this._environmentVariablesService.RblApiUrl}/api/feeds") ?? new RssVM();
+            Feeds = await httpClient.GetFromJsonAsync<RssVM>($"{this._configService.AppSettings.BackendApiUrl}/api/feeds") ?? new RssVM();
             DataChanged.Invoke();
         }
     }
diff --git a/RBLNews.Web/Program.cs b/RBLNews.Web/Program.cs
index dfa915d..119fa32 100644
--- a/RBLNews.Web/Program.cs
+++ b/RBLNews.Web/Program.cs
@@ -1,4 +1,6 @@
+using RBLNews.Shared.Models;
 using RBLNews.Shared.Services;
+using RBLNews.Shared.Services.Contracts;
 using RBLNews.Web.Components;
 using RBLNews.Web.Services;
 
@@ -9,10 +11,9 @@ builder.Services.AddRazorComponents()
 	.AddInteractiveServerComponents();
 builder.Services.AddBlazorBootstrap();
 
+builder.Services.AddSingleton<IConfigService, ConfigService>();
 builder.Services.AddSingleton<IFeedDataService, FeedDataService>();
 builder.Services.AddSingleton<AppLifecycleService>();
-builder.Services.AddSingleton<EnvironmentVariablesService>();
-builder.Services.AddSingleton<ConfigService>();
 
 var app = builder.Build();
 
@@ -25,24 +26,11 @@ if (!app.Environment.IsDevelopment())
 	app.UseHsts();
 }
 
-using var serviceScope = app.Services.CreateScope();
-IServiceProvider services = serviceScope.ServiceProvider;
+AppSettingsModel? appSettings = app.Configuration.GetSection("App").Get<AppSettingsModel>();
 
-var logger = LoggerFactory.Create(config =>
+if (string.IsNullOrEmpty(appSettings?.BackendApiUrl))
 {
-	config.AddConsole();
-}).CreateLogger("Program");
-
-
-ConfigService configService = services.GetRequiredService<ConfigService>();
-var a = configService.AppSettings;
-
-EnvironmentVariablesService environmentVariablesService = services.GetRequiredService<EnvironmentVariablesService>();
-string? backendApiUrl = environmentVariablesService.RblApiUrl;
-
-if (string.IsNullOrEmpty(backendApiUrl))
-{
-	throw new Exception($"can't instantiate services, due to paramters are null. backendApiUrl: '{backendApiUrl}'");
+	throw new Exception($"can't instantiate services, due to paramters are null. backendApiUrl: '{appSettings?.BackendApiUrl}'");
 }
 
 app.UseHttpsRedirection();
diff --git a/RBLNews.Web/Services/ConfigService.cs b/RBLNews.Web/Services/ConfigService.cs
index 3cf60fd..edd0d47 100644
--- a/RBLNews.Web/Services/ConfigService.cs
+++ b/RBLNews.Web/Services/ConfigService.cs
@@ -1,18 +1,16 @@
-using RBLNews.Web.Models;
+using RBLNews.Shared.Models;
+using RBLNews.Shared.Services.Contracts;
 
 namespace RBLNews.Web.Services;
 
-public class ConfigService
+public class ConfigService : IConfigService
 {
-	private readonly IConfiguration _configuration;
-
-	public AppSettingsModel AppSettings { get; private set; }
+	public AppSettingsModel AppSettings { get; }
 
 	public ConfigService(IConfiguration configuration)
 	{
-		this._configuration = configuration;
-		configuration.GetSection("App").Bind(this.AppSettings);
-		
 		AppSettings = configuration.GetSection("App").Get<AppSettingsModel>();
+		if(this.AppSettings == null)
+			throw new NullReferenceException("App settings not found");
 	}
 }
\ No newline at end of file
diff --git a/RBLNews.Web/appsettings.Development.json b/RBLNews.Web/appsettings.Development.json
index af54d1e..7a608cd 100644
--- a/RBLNews.Web/appsettings.Development.json
+++ b/RBLNews.Web/appsettings.Development.json
@@ -6,6 +6,6 @@
     }
   },
   "App": {
-    "BackendApiUrl": "https://rbl.wohlleben.dev"
+    "BackendApiUrl": "https://localhost:5147"
   }
 }
diff --git a/RBLNews.Web/appsettings.Test.json b/RBLNews.Web/appsettings.Test.json
new file mode 100644
index 0000000..8ceaf0e
--- /dev/null
+++ b/RBLNews.Web/appsettings.Test.json
@@ -0,0 +1,12 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*",  
+  "App": {
+    "BackendApiUrl": "https://rbl.wohlleben.dev"
+  }
+}
diff --git a/RBLNews.Web/appsettings.json b/RBLNews.Web/appsettings.json
index 0c2c7dc..10f68b8 100644
--- a/RBLNews.Web/appsettings.json
+++ b/RBLNews.Web/appsettings.json
@@ -5,8 +5,5 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
-  "AllowedHosts": "*",  
-  "App": {
-    "BackendApiUrl": "https://rblnews.de"
-  }
+  "AllowedHosts": "*"
 }