diff --git a/WinUI3Localizer.SampleApp/App.xaml.cs b/WinUI3Localizer.SampleApp/App.xaml.cs
index c8a5550..0cdc8da 100644
--- a/WinUI3Localizer.SampleApp/App.xaml.cs
+++ b/WinUI3Localizer.SampleApp/App.xaml.cs
@@ -5,7 +5,6 @@
 using Serilog;
 using System;
 using System.IO;
-using System.Runtime.CompilerServices;
 using System.Threading.Tasks;
 using Windows.Storage;
 
diff --git a/WinUI3Localizer.lutconfig b/WinUI3Localizer.lutconfig
new file mode 100644
index 0000000..596a860
--- /dev/null
+++ b/WinUI3Localizer.lutconfig
@@ -0,0 +1,6 @@
+<LUTConfig Version="1.0">
+  <Repository />
+  <ParallelBuilds>true</ParallelBuilds>
+  <ParallelTestRuns>true</ParallelTestRuns>
+  <TestCaseTimeout>180000</TestCaseTimeout>
+</LUTConfig>
\ No newline at end of file
diff --git a/WinUI3Localizer/PriResourceReader.cs b/WinUI3Localizer/PriResourceReader.cs
index 3d6b8eb..45d20aa 100644
--- a/WinUI3Localizer/PriResourceReader.cs
+++ b/WinUI3Localizer/PriResourceReader.cs
@@ -1,12 +1,10 @@
 using Microsoft.Windows.ApplicationModel.Resources;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.CodeAnalysis;
 using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace WinUI3Localizer;
+
 internal class PriResourceReader
 {
     private readonly ResourceManager resourceManager;
@@ -18,29 +16,30 @@ internal PriResourceReader(ResourceManager resourceManager)
 
     public IEnumerable<LanguageDictionary.Item> GetItems(string language, string subTreeName = "Resources")
     {
-        if (string.IsNullOrEmpty(subTreeName) || subTreeName == "/")
+        if (string.IsNullOrEmpty(subTreeName) is true ||
+            subTreeName == "/")
         {
             subTreeName = "Resources";
         }
-        else if (subTreeName.EndsWith('/'))
+        else if (subTreeName.EndsWith('/') is true)
         {
             subTreeName = subTreeName[..^1];
         }
 
         ResourceMap resourceMap = this.resourceManager.MainResourceMap.TryGetSubtree(subTreeName);
-        if (resourceMap != null)
+
+        if (resourceMap is not null)
         {
             ResourceContext resourceContext = this.resourceManager.CreateResourceContext();
             resourceContext.QualifierValues[KnownResourceQualifierName.Language] = language;
 
-            return GetItemsCore(resourceMap, subTreeName, resourceContext);
+            return PriResourceReader.GetItemsCore(resourceMap, subTreeName, resourceContext);
         }
 
         return Enumerable.Empty<LanguageDictionary.Item>();
     }
 
-
-    private IEnumerable<LanguageDictionary.Item> GetItemsCore(ResourceMap resourceMap, string subTreeName, ResourceContext resourceContext)
+    private static IEnumerable<LanguageDictionary.Item> GetItemsCore(ResourceMap resourceMap, string subTreeName, ResourceContext resourceContext)
     {
         bool isResourcesSubTree = string.Equals(subTreeName, "Resources", StringComparison.OrdinalIgnoreCase);
         uint count = resourceMap.ResourceCount;
@@ -49,49 +48,18 @@ internal PriResourceReader(ResourceManager resourceManager)
         {
             (string key, ResourceCandidate? candidate) = resourceMap.GetValueByIndex(i, resourceContext);
 
-            if (candidate != null && candidate.Kind == ResourceCandidateKind.String)
+            if (candidate is not null &&
+                candidate.Kind is ResourceCandidateKind.String)
             {
                 key = key.Replace('/', '.');
+
                 if (!isResourcesSubTree)
                 {
                     key = $"/{subTreeName}/{key}";
                 }
-                yield return LocalizerBuilder.CreateLanguageDictionaryItem(key, candidate.ValueAsString);
-            }
-        }
-    }
-
-}
-
-internal class PriResourceReaderFactory
-{
-    private readonly Dictionary<string, PriResourceReader> readers = new Dictionary<string, PriResourceReader>();
 
-    internal PriResourceReader GetPriResourceReader(string? priFile)
-    {
-        string? normalizedFilePath = string.Empty;
-
-        if (!string.IsNullOrEmpty(priFile))
-        {
-            normalizedFilePath = System.IO.Path.GetFullPath(priFile);
-        }
-
-        if (!this.readers.TryGetValue(normalizedFilePath, out PriResourceReader? reader))
-        {
-            ResourceManager manager;
-            if (string.IsNullOrEmpty(normalizedFilePath))
-            {
-                manager = new ResourceManager();
-            }
-            else
-            {
-                manager = new ResourceManager(normalizedFilePath);
+                yield return LocalizerBuilder.CreateLanguageDictionaryItem(key, candidate.ValueAsString);
             }
-            reader = new PriResourceReader(manager);
-            this.readers[normalizedFilePath] = reader;
         }
-
-        return reader;
     }
 }
-
diff --git a/WinUI3Localizer/PriResourceReaderFactory.cs b/WinUI3Localizer/PriResourceReaderFactory.cs
new file mode 100644
index 0000000..fd390fb
--- /dev/null
+++ b/WinUI3Localizer/PriResourceReaderFactory.cs
@@ -0,0 +1,38 @@
+using Microsoft.Windows.ApplicationModel.Resources;
+using System.Collections.Generic;
+
+namespace WinUI3Localizer;
+
+internal class PriResourceReaderFactory
+{
+    private readonly Dictionary<string, PriResourceReader> readers = new();
+
+    internal PriResourceReader GetPriResourceReader(string? priFile)
+    {
+        string normalizedFilePath = string.Empty;
+
+        if (string.IsNullOrEmpty(priFile) is false)
+        {
+            normalizedFilePath = System.IO.Path.GetFullPath(priFile);
+        }
+
+        if (this.readers.TryGetValue(normalizedFilePath, out PriResourceReader? reader) is false)
+        {
+            ResourceManager manager;
+
+            if (string.IsNullOrEmpty(normalizedFilePath) is false)
+            {
+                manager = new ResourceManager(normalizedFilePath);
+            }
+            else
+            {
+                manager = new ResourceManager();
+            }
+
+            reader = new PriResourceReader(manager);
+            this.readers[normalizedFilePath] = reader;
+        }
+
+        return reader;
+    }
+}
diff --git a/WinUI3Localizer/WinUI3Localizer.csproj b/WinUI3Localizer/WinUI3Localizer.csproj
index ea833d1..9f79113 100644
--- a/WinUI3Localizer/WinUI3Localizer.csproj
+++ b/WinUI3Localizer/WinUI3Localizer.csproj
@@ -17,7 +17,7 @@
       - You/users can add new languages even after deployment
       - Use standard Resources.resw
     </Description>
-    <Version>2.1.0</Version>
+    <Version>2.2.0</Version>
     <PackageTags>winui3;winappsdk;localization;localize;language;multilanguage</PackageTags>
     <PackageProjectUrl>https://github.com/AndrewKeepCoding/WinUI3Localizer</PackageProjectUrl>
     <RepositoryUrl>https://github.com/AndrewKeepCoding/WinUI3Localizer</RepositoryUrl>
@@ -27,7 +27,7 @@
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
     <PackageId>WinUI3Localizer</PackageId>
     <Product>WinUI3Localizer</Product>
-    <Copyright>Copyright (c) Andrew KeepCoding 2023</Copyright>
+    <Copyright>Copyright (c) Andrew KeepCoding 2024</Copyright>
     <Authors>Andrew KeepCoding</Authors>
     <PackageReadMeFile>README.md</PackageReadMeFile>
     <PackageIcon>winui.png</PackageIcon>