Test projects are working.

Vector3VisualizerSource/Vector3ObjectSource.cs

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+using Microsoft.VisualStudio.DebuggerVisualizers;
+using NamedPipes;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Numerics;
+
+namespace Vector3VisualizerSource;
+
+public class Vector3ObjectSource : VisualizerObjectSource
+{
+    private static NamedPipeClient? PipeClient { get; set; }
+    private static void Send(Vector3Model vector3Model)
+    {
+        PipeClient  ??= new NamedPipeClient("testPipe");
+        PipeClient.SetMessageAsync($"Hello from {nameof(Vector3ObjectSource)}").GetAwaiter().GetResult();
+    }
+    public Vector3ObjectSource()
+    {
+        Debug.WriteLine("new Vector3ObjectSource");
+    }
+    public override void GetData(object target, Stream outgoingData)
+    {
+        Vector3Model vector3Model = new();
+        switch (target)
+        {
+            case Vector3 vector3:
+                vector3Model.Vector3 = vector3.ToString();
+                break;
+            case IEnumerable<Vector3> vector3List:
+                vector3Model.Vector3 = vector3List.Last().ToString();
+                break;
+            case Quaternion quaternion:
+                vector3Model.Quaternion = quaternion.ToString();
+                break;
+        }
+
+        Send(vector3Model);
+        SerializeAsJson(outgoingData, vector3Model);
+    }
+}