diff --git a/src/Devlead.Testing.MockHttp.sln b/src/Devlead.Testing.MockHttp.sln
deleted file mode 100644
index a7a2783..0000000
--- a/src/Devlead.Testing.MockHttp.sln
+++ /dev/null
@@ -1,28 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.31903.59
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Devlead.Testing.MockHttp", "Devlead.Testing.MockHttp\Devlead.Testing.MockHttp.csproj", "{EC5F2F43-B0EA-47C2-BFC0-E89FE1EB49BD}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Devlead.Testing.MockHttp.Tests", "Devlead.Testing.MockHttp.Tests\Devlead.Testing.MockHttp.Tests.csproj", "{023C3066-0E23-49F5-B206-977FAF2E9DE3}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{EC5F2F43-B0EA-47C2-BFC0-E89FE1EB49BD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{EC5F2F43-B0EA-47C2-BFC0-E89FE1EB49BD}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{EC5F2F43-B0EA-47C2-BFC0-E89FE1EB49BD}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{EC5F2F43-B0EA-47C2-BFC0-E89FE1EB49BD}.Release|Any CPU.Build.0 = Release|Any CPU
-		{023C3066-0E23-49F5-B206-977FAF2E9DE3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{023C3066-0E23-49F5-B206-977FAF2E9DE3}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{023C3066-0E23-49F5-B206-977FAF2E9DE3}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{023C3066-0E23-49F5-B206-977FAF2E9DE3}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-EndGlobal
diff --git a/src/Devlead.Testing.MockHttp.slnx b/src/Devlead.Testing.MockHttp.slnx
new file mode 100644
index 0000000..22aebad
--- /dev/null
+++ b/src/Devlead.Testing.MockHttp.slnx
@@ -0,0 +1,4 @@
+<Solution>
+  <Project Path="Devlead.Testing.MockHttp.Tests/Devlead.Testing.MockHttp.Tests.csproj" />
+  <Project Path="Devlead.Testing.MockHttp/Devlead.Testing.MockHttp.csproj" />
+</Solution>
diff --git a/src/Devlead.Testing.MockHttp/Routes.cs b/src/Devlead.Testing.MockHttp/Routes.cs
index 14d520f..3415c4d 100644
--- a/src/Devlead.Testing.MockHttp/Routes.cs
+++ b/src/Devlead.Testing.MockHttp/Routes.cs
@@ -49,12 +49,7 @@ out var response
         return GetResponseBuilder;
     }
 
-    private static ImmutableDictionary<(
-                        HttpMethod Method,
-                        string AbsoluteUri
-                        ),
-                        Func<HttpRequestMessage, HttpResponseMessage>
-                        >? _routes;
+    private static ImmutableArray<Route>? _routes;
 
     private static ImmutableDictionary<(
                         HttpMethod Method,
@@ -62,7 +57,7 @@ string AbsoluteUri
                         ),
                         Func<HttpRequestMessage, HttpResponseMessage>
                         > GetRoutes()
-     => _routes ??= InitializeRoutesFromResource();
+     => InitializeRoutesFromResource();
 
 
     private static ImmutableDictionary<(HttpMethod Method, string PathAndQuery), Func<HttpRequestMessage, HttpResponseMessage>> InitializeRoutesFromResource()
@@ -70,8 +65,7 @@ string AbsoluteUri
         var routesJson = Resources<T>.GetString("Routes.json");
         ArgumentException.ThrowIfNullOrEmpty(routesJson);
 
-        var routes = System.Text.Json.JsonSerializer.Deserialize<Route[]>(routesJson);
-        ArgumentNullException.ThrowIfNull(routes);
+        var routes = _routes ??= ImmutableArray.Create(System.Text.Json.JsonSerializer.Deserialize<Route[]>(routesJson) ?? throw new ArgumentNullException(nameof(routesJson)));
 
         var enableRoute = routes
                 .Aggregate(