diff --git a/tests/ImageSharp.Tests/TestUtilities/BasicSerializer.cs b/tests/ImageSharp.Tests/TestUtilities/BasicSerializer.cs
index 80ca0dc6d..09944b875 100644
--- a/tests/ImageSharp.Tests/TestUtilities/BasicSerializer.cs
+++ b/tests/ImageSharp.Tests/TestUtilities/BasicSerializer.cs
@@ -11,7 +11,9 @@ using Xunit.Abstractions;
 namespace SixLabors.ImageSharp.Tests.TestUtilities
 {
     /// <summary>
-    /// <see cref="IXunitSerializationInfo"/>-compatible serialization for cross-process use-cases.
+    /// RemoteExecutor can only execute static methods, which can only consume static arguments.
+    /// To overcome this, data has to be serialized to string. This utility allows serialization
+    /// of <see cref="IXunitSerializable"/> types to strings.
     /// </summary>
     internal class BasicSerializer : IXunitSerializationInfo
     {
diff --git a/tests/NuGet.config b/tests/NuGet.config
index 8f9bf7e10..1bb9a0fc2 100644
--- a/tests/NuGet.config
+++ b/tests/NuGet.config
@@ -2,7 +2,10 @@
   <packageSources>
     <clear />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
-    <!-- For RemoteExecutor: -->
+      <!--
+      Contains RemoteExecutor. Taken from:
+      https://github.com/dotnet/runtime/blob/master/NuGet.config
+      -->
     <add key="dotnet-eng" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json" />
   </packageSources>
 </configuration>