diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..8b1f1f8
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,6 @@
+{
+    "sonarlint.connectedMode.project": {
+        "connectionId": "dgmjr-io",
+        "projectKey": "dgmjr-io_Abstractions"
+    }
+}
diff --git a/Compat/IsExternalInit.cs b/Compat/IsExternalInit.cs
deleted file mode 100644
index 857ebaf..0000000
--- a/Compat/IsExternalInit.cs
+++ /dev/null
@@ -1,18 +0,0 @@
-//
-// IsExternalInit.cs
-//
-//   Created: 2022-11-02-08:16:48
-//   Modified: 2022-11-02-08:16:48
-//
-//   Author: David G. Moore, Jr. <david@dgmjr.io>
-//
-//   Copyright © 2022-2023 David G. Moore, Jr., All Rights Reserved
-//      License: MIT (https://opensource.org/licenses/MIT)
-//
-namespace System.Runtime.CompilerServices
-{
-    /// <summary>
-    /// Allows the use of the <c>init</c> accessor on record properties.
-    /// </summary>
-    public static class IsExternalInit { }
-}
diff --git a/Dgmjr.Abstractions.csproj b/Dgmjr.Abstractions.csproj
index 7a707d8..5b34abf 100644
--- a/Dgmjr.Abstractions.csproj
+++ b/Dgmjr.Abstractions.csproj
@@ -23,6 +23,9 @@
     <EmitNuspec>true</EmitNuspec>
     <CopyLocalLockFileAssemblies>false</CopyLocalLockFileAssemblies>
   </PropertyGroup>
+  <ItemGroup>
+    <!-- <PackageReference Include="System.Polyfills" /> -->
+  </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
     <PackageReference Include="Dgmjr.System.Extensions" />
diff --git a/Polyfill/IsExternalInit.cs b/Polyfill/IsExternalInit.cs
new file mode 100644
index 0000000..696a072
--- /dev/null
+++ b/Polyfill/IsExternalInit.cs
@@ -0,0 +1,14 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.ComponentModel;
+
+namespace System.Runtime.CompilerServices
+{
+    /// <summary>
+    /// Reserved to be used by the compiler for tracking metadata. This class
+    /// should not be used by developers in source code.
+    /// </summary>
+    [EditorBrowsable(EditorBrowsableState.Never)]
+    internal static class IsExternalInit { }
+}