diff --git a/StarterNG.Tests/Fakes/InMemoryFileSystem.cs b/StarterNG.Tests/Fakes/InMemoryFileSystem.cs
index e95f021..79108cb 100644
--- a/StarterNG.Tests/Fakes/InMemoryFileSystem.cs
+++ b/StarterNG.Tests/Fakes/InMemoryFileSystem.cs
@@ -200,6 +200,9 @@ public sealed class InMemoryFileSystem : IFileSystem
     /// <summary>Files added through <see cref="WithExecutable"/> carry the execute bit.</summary>
     public long GetFileSize(string path) => Bytes(path).LongLength;
 
+    public (DateTime LastWriteUtc, long Size)? LastWriteAndSize(string path) =>
+        FileExists(path) ? (GetLastWriteTimeUtc(path), GetFileSize(path)) : null;
+
     public bool IsExecutable(string path) => _executable.Contains(Normalize(path));
 
     public InMemoryFileSystem WithExecutable(string path, string contents = "\u007fELF")
diff --git a/StarterNG/Application/Abstractions/IFileSystem.cs b/StarterNG/Application/Abstractions/IFileSystem.cs
index 66e8ca3..e04f862 100644
--- a/StarterNG/Application/Abstractions/IFileSystem.cs
+++ b/StarterNG/Application/Abstractions/IFileSystem.cs
@@ -55,6 +55,9 @@ public interface IFileSystem
 
     long GetFileSize(string path);
 
+    /// <summary>A file's time and size in one look; null when there is no file.</summary>
+    (DateTime LastWriteUtc, long Size)? LastWriteAndSize(string path);
+
     bool IsExecutable(string path);
 
     /// <summary>Where the symbolic link at <paramref name="path"/> points, or null for anything else.</summary>
diff --git a/StarterNG/Domain/Sceneries/FileStamp.cs b/StarterNG/Domain/Sceneries/FileStamp.cs
index 674bca0..f892461 100644
--- a/StarterNG/Domain/Sceneries/FileStamp.cs
+++ b/StarterNG/Domain/Sceneries/FileStamp.cs
@@ -11,9 +11,7 @@ public readonly record struct FileStamp(DateTime LastWriteUtc, long Size)
     {
         try
         {
-            return files.FileExists(path)
-                ? new FileStamp(files.GetLastWriteTimeUtc(path), files.GetFileSize(path))
-                : null;
+            return files.LastWriteAndSize(path) is { } stat ? new FileStamp(stat.LastWriteUtc, stat.Size) : null;
         }
         catch (Exception)
         {
diff --git a/StarterNG/Infrastructure/Adapters/PhysicalFileSystem.cs b/StarterNG/Infrastructure/Adapters/PhysicalFileSystem.cs
index db9350d..15ae4ee 100644
--- a/StarterNG/Infrastructure/Adapters/PhysicalFileSystem.cs
+++ b/StarterNG/Infrastructure/Adapters/PhysicalFileSystem.cs
@@ -110,6 +110,12 @@ public sealed class PhysicalFileSystem : IFileSystem
 
     public long GetFileSize(string path) => new FileInfo(path).Length;
 
+    public (DateTime LastWriteUtc, long Size)? LastWriteAndSize(string path)
+    {
+        var info = new FileInfo(path);
+        return info.Exists ? (info.LastWriteTimeUtc, info.Length) : null;
+    }
+
     public bool IsExecutable(string path)
     {
         if (OperatingSystem.IsWindows())