diff --git a/.gitignore b/.gitignore
index 37a4aae..0a4f853 100644
--- a/.gitignore
+++ b/.gitignore
@@ -494,3 +494,4 @@ fabric.properties
 
 ### Custom ###
 launchSettings.json
+.idea/.idea.ShinRyuModManager-CE/.idea/sonarlint.xml
diff --git a/ParLibrary.Tests/SllzTests.cs b/ParLibrary.Tests/SllzTests.cs
index e78a05c..b514032 100644
--- a/ParLibrary.Tests/SllzTests.cs
+++ b/ParLibrary.Tests/SllzTests.cs
@@ -26,7 +26,7 @@ public void TestSllz(byte compressionVersion) {
         var compressedBinaryFormat = (ParFile)ConvertFormat.With(typeof(Compressor), binaryFormat, parameters);
         var decompressedBinaryFormat = (ParFile)ConvertFormat.With(typeof(Decompressor), compressedBinaryFormat);
         
-        Assert.IsTrue(compressedBinaryFormat.Stream.Length < decompressedBinaryFormat.Stream.Length);
+        Assert.IsLessThan(decompressedBinaryFormat.Stream.Length, compressedBinaryFormat.Stream.Length);
         Assert.IsTrue(dataStream.Compare(decompressedBinaryFormat.Stream));
     }
 }
diff --git a/ParLibrary/Converter/ParArchiveWriter.cs b/ParLibrary/Converter/ParArchiveWriter.cs
index 7a2532c..6bf90e2 100644
--- a/ParLibrary/Converter/ParArchiveWriter.cs
+++ b/ParLibrary/Converter/ParArchiveWriter.cs
@@ -246,22 +246,22 @@ private static void WriteNames(DataWriter writer, IEnumerable<Node> nodes) {
     }
     
     private static void WriteFolders(DataWriter writer, IEnumerable<Node> folders) {
-        foreach (var node in folders) {
+        foreach (var tags in folders.Select(x => x.Tags)) {
             var attributes = 0x00000010;
             
-            if (node.Tags.TryGetValue("DirectoryInfo", out var directoryInfo)) {
+            if (tags.TryGetValue("DirectoryInfo", out var directoryInfo)) {
                 DirectoryInfo info = directoryInfo;
                 attributes = (int)info.Attributes;
             }
             
-            if (node.Tags.TryGetValue("Attributes", out var attrs)) {
+            if (tags.TryGetValue("Attributes", out var attrs)) {
                 attributes = (int)attrs;
             }
             
-            writer.Write((int)node.Tags["FolderCount"]);
-            writer.Write((int)node.Tags["FirstFolderIndex"]);
-            writer.Write((int)node.Tags["FileCount"]);
-            writer.Write((int)node.Tags["FirstFileIndex"]);
+            writer.Write((int)tags["FolderCount"]);
+            writer.Write((int)tags["FirstFolderIndex"]);
+            writer.Write((int)tags["FileCount"]);
+            writer.Write((int)tags["FirstFileIndex"]);
             writer.Write(attributes);
             writer.Write(0x00000000);
             writer.Write(0x00000000);
@@ -275,20 +275,16 @@ private static void WriteFiles(DataWriter writer, IEnumerable<Node> files, long
         foreach (var node in files) {
             var parFile = node.GetFormatAs<ParFile>();
             
-            if (parFile == null) {
+            if (parFile == null)
                 continue;
-            }
-            
-            if (node.Stream!.Length > 2048) {
-                blockSize = 2048 + (-node.Stream.Length % 2048);
+
+            var streamLength = node.Stream!.Length;
+
+            if (streamLength > 2048 || streamLength >= blockSize) {
+                blockSize = 2048 + (-streamLength % 2048);
                 dataPosition = Align(dataPosition, 2048);
             } else {
-                if (node.Stream.Length < blockSize) {
-                    blockSize -= node.Stream.Length;
-                } else {
-                    blockSize = 2048 + (-node.Stream.Length % 2048);
-                    dataPosition = Align(dataPosition, 2048);
-                }
+                blockSize -= streamLength;
             }
 
             ulong seconds = 0;
@@ -296,18 +292,16 @@ private static void WriteFiles(DataWriter writer, IEnumerable<Node> files, long
 
             if (!parameters.ResetFileDates) {
                 var date = parFile.FileDate;
-                var baseDate = new DateTime(1970, 1, 1);
+                var baseDate = DateTime.UnixEpoch;
             
                 if (node.Tags.TryGetValue("Timestamp", out var timestamp)) {
                     date = baseDate.AddSeconds(timestamp);
                 }
             
-                if (node.Tags.TryGetValue("FileInfo", out var fileInfo)) {
-                    if (fileInfo is FileInfo info) {
-                        attributes = HandleAttributes(info);
-                
-                        date = info.LastWriteTime;
-                    }
+                if (node.Tags.TryGetValue("FileInfo", out var fileInfo) && fileInfo is FileInfo info) {
+                    attributes = HandleAttributes(info);
+            
+                    date = info.LastWriteTime;
                 }
             
                 seconds = (ulong)(date - baseDate).TotalSeconds;
diff --git a/ParLibrary/ParFile.cs b/ParLibrary/ParFile.cs
index f44bebf..bda8dbf 100644
--- a/ParLibrary/ParFile.cs
+++ b/ParLibrary/ParFile.cs
@@ -15,10 +15,7 @@ public class ParFile : BinaryFormat, IConverter<BinaryFormat, ParFile> {
     /// Initializes a new instance of the <see cref="ParFile"/> class.
     /// </summary>
     public ParFile() {
-        CanBeCompressed = true;
-        IsCompressed = false;
         DecompressedSize = 0;
-        Attributes = 0x00000020;
         FileDate = DateTime.Now;
     }
     
@@ -29,10 +26,7 @@ public ParFile() {
     public ParFile(DataStream stream) : base(stream) {
         ArgumentNullException.ThrowIfNull(stream);
 
-        CanBeCompressed = true;
-        IsCompressed = false;
         DecompressedSize = (uint)stream.Length;
-        Attributes = 0x00000020;
         FileDate = DateTime.Now;
     }
     
@@ -43,18 +37,15 @@ public ParFile(DataStream stream) : base(stream) {
     /// <param name="offset">Start offset.</param>
     /// <param name="length">Data length.</param>
     public ParFile(DataStream stream, long offset, long length) : base(stream, offset, length) {
-        CanBeCompressed = true;
-        IsCompressed = false;
         DecompressedSize = (uint)length;
-        Attributes = 0x00000020;
         FileDate = DateTime.Now;
     }
-    
+
     /// <summary>
     /// Gets or sets a value indicating whether the file can be compressed.
     /// </summary>
-    public bool CanBeCompressed { get; init; }
-    
+    public bool CanBeCompressed { get; init; } = true;
+
     /// <summary>
     /// Gets or sets a value indicating whether the file is compressed.
     /// </summary>
@@ -64,32 +55,24 @@ public ParFile(DataStream stream, long offset, long length) : base(stream, offse
     /// Gets or sets the file size (decompressed).
     /// </summary>
     public uint DecompressedSize { get; init; }
-    
+
     /// <summary>
     /// Gets or sets the file attributes.
     /// </summary>
-    public int Attributes { get; init; }
+    public int Attributes { get; init; } = 0x00000020;
     
     /// <summary>
     /// Gets or sets the file date (as ulong).
     /// </summary>
     public ulong Timestamp { get; init; }
-    
+
     /// <summary>
     /// Gets or sets the file date (as DateTime).
     /// </summary>
     public DateTime FileDate {
-        get {
-            var baseDate = new DateTime(1970, 1, 1);
-            
-            return baseDate.AddSeconds(Timestamp);
-        }
-        
-        private init {
-            var baseDate = new DateTime(1970, 1, 1);
-            
-            Timestamp = (ulong)(value - baseDate).TotalSeconds;
-        }
+        get => DateTime.UnixEpoch.AddSeconds(Timestamp);
+
+        private init => Timestamp = (ulong)(value - DateTime.UnixEpoch).TotalSeconds;
     }
     
     /// <inheritdoc/>
diff --git a/ParLibrary/Sllz/Compressor.cs b/ParLibrary/Sllz/Compressor.cs
index 299ca0b..e3e37a4 100644
--- a/ParLibrary/Sllz/Compressor.cs
+++ b/ParLibrary/Sllz/Compressor.cs
@@ -82,7 +82,7 @@ private static DataStream Compress(DataStream inputDataStream, CompressorParamet
                 break;
             
             case 2 when inputDataStream.Length < 0x1B:
-                throw new FormatException($"SLLZv2: Input size must more than 0x1A.");
+                throw new FormatException("SLLZv2: Input size must more than 0x1A.");
             
             case 2:
                 compressedDataStream = CompressV2(inputDataStream);
@@ -135,9 +135,7 @@ private static DataStream CompressV1(DataStream inputDataStream) {
         outputData[flagPosition] = 0x00;
         outputPosition++;
         
-        if (outputPosition >= outputSize) {
-            throw new SllzCompressorException("Compressed size is bigger than original size.");
-        }
+        ThrowIfCompressedIsLarger(outputPosition, outputSize);
         
         while (inputPosition < inputData.Length) {
             var windowSize = Math.Min(inputPosition, MAX_WINDOW_SIZE);
@@ -158,18 +156,14 @@ private static DataStream CompressV1(DataStream inputDataStream) {
                     outputData[flagPosition] = 0x00;
                     outputPosition++;
                     
-                    if (outputPosition >= outputSize) {
-                        throw new SllzCompressorException("Compressed size is bigger than original size.");
-                    }
+                    ThrowIfCompressedIsLarger(outputPosition, outputSize);
                 }
                 
                 outputData[outputPosition] = inputData[inputPosition];
                 inputPosition++;
                 outputPosition++;
                 
-                if (outputPosition >= outputSize) {
-                    throw new SllzCompressorException("Compressed size is bigger than original size.");
-                }
+                ThrowIfCompressedIsLarger(outputPosition, outputSize);
             } else {
                 currentFlag |= (byte)(1 << (7 - bitCount));
                 bitCount++;
@@ -183,9 +177,7 @@ private static DataStream CompressV1(DataStream inputDataStream) {
                     outputData[flagPosition] = 0x00;
                     outputPosition++;
                     
-                    if (outputPosition >= outputSize) {
-                        throw new SllzCompressorException("Compressed size is bigger than original size.");
-                    }
+                    ThrowIfCompressedIsLarger(outputPosition, outputSize);
                 }
                 
                 var offset = (short)((match.Item1 - 1) << 4);
@@ -195,16 +187,12 @@ private static DataStream CompressV1(DataStream inputDataStream) {
                 outputData[outputPosition] = (byte)tuple;
                 outputPosition++;
                 
-                if (outputPosition >= outputSize) {
-                    throw new SllzCompressorException("Compressed size is bigger than original size.");
-                }
+                ThrowIfCompressedIsLarger(outputPosition, outputSize);
                 
                 outputData[outputPosition] = (byte)(tuple >> 8);
                 outputPosition++;
-                
-                if (outputPosition >= outputSize) {
-                    throw new SllzCompressorException("Compressed size is bigger than original size.");
-                }
+
+                ThrowIfCompressedIsLarger(outputPosition, outputSize);
                 
                 inputPosition += match.Item2;
             }
@@ -281,4 +269,10 @@ private static byte[] ZlibCompress(byte[] decompressedData) {
         
         return outputMemoryStream.ToArray();
     }
+
+    private static void ThrowIfCompressedIsLarger(uint outputPosition, uint outputSize) {
+        if (outputPosition >= outputSize) {
+            throw new SllzCompressorException("Compressed size is bigger than original size.");
+        }
+    }
 }
\ No newline at end of file
diff --git a/ShinRyuModManager-CE/GameModel.cs b/ShinRyuModManager-CE/GameModel.cs
index 19f83d9..11eccdd 100644
--- a/ShinRyuModManager-CE/GameModel.cs
+++ b/ShinRyuModManager-CE/GameModel.cs
@@ -85,7 +85,9 @@ public static void DoY5HActProcedure(MLO mlo) {
 
                     try {
                         new DirectoryInfo(outputFakeDir).Delete(true);
-                    } catch { }
+                    } catch {
+                        // ignore
+                    }
                 } else {
                     var outputPath = Path.Combine(parlessDir.FullName, dir.Name + ".par");
                     Gibbed.Yakuza0.Pack.Program.Main([dir.FullName], outputPath);
diff --git a/ShinRyuModManager-CE/LibMeta.cs b/ShinRyuModManager-CE/LibMeta.cs
index aa554b9..9d64493 100644
--- a/ShinRyuModManager-CE/LibMeta.cs
+++ b/ShinRyuModManager-CE/LibMeta.cs
@@ -1,7 +1,9 @@
+using JetBrains.Annotations;
 using ShinRyuModManager.Helpers;
 
 namespace ShinRyuModManager;
 
+[UsedImplicitly]
 public class LibMeta {
     public Guid GUID { get; set; }
     public string Name { get; set; }
diff --git a/ShinRyuModManager-CE/ModLoadOrder/MLO.cs b/ShinRyuModManager-CE/ModLoadOrder/MLO.cs
index 9633891..075fd0f 100644
--- a/ShinRyuModManager-CE/ModLoadOrder/MLO.cs
+++ b/ShinRyuModManager-CE/ModLoadOrder/MLO.cs
@@ -9,10 +9,10 @@ public class MLO {
     private const uint VERSION = 0x020000; // 2.0
     private const uint FILESIZE = 0x0;     // Remaining faithful to RGG by adding a filesize that's not used
     
-    public readonly List<string> Mods;
-    public readonly List<ParlessFile> Files;
-    public readonly List<ParlessFolder> ParlessFolders;
-    public readonly List<CpkFolder> CpkFolders;
+    public List<string> Mods { get; }
+    public List<ParlessFile> Files { get; }
+    public List<ParlessFolder> ParlessFolders { get; }
+    public List<CpkFolder> CpkFolders { get; }
     
     public MLO(List<int> modIndices, List<string> mods, OrderedSet<string> fileSet, List<ParlessFolder> parlessFolders, Dictionary<string, List<int>> cpkFolders) {
         var files = fileSet.ToList();
diff --git a/ShinRyuModManager-CE/ModLoadOrder/Mods/Mod.cs b/ShinRyuModManager-CE/ModLoadOrder/Mods/Mod.cs
index 9aaf029..9d5ca09 100644
--- a/ShinRyuModManager-CE/ModLoadOrder/Mods/Mod.cs
+++ b/ShinRyuModManager-CE/ModLoadOrder/Mods/Mod.cs
@@ -136,13 +136,8 @@ public void AddFiles(string path, string check) {
                 case "speech":
                     cpkDataPath = GamePath.RemoveModPath(path);
                 
-                    if (GamePath.CurrentGame == Game.Yakuza5) {
+                    if (GamePath.CurrentGame is Game.Yakuza5 or <= Game.YakuzaKiwami) {
                         RepackCpKs.Add(cpkDataPath + ".cpk");
-                        //Log.Verbose("Adding CPK folder: {CpkDataPath}", cpkDataPath);
-                    } else {
-                        if (GamePath.CurrentGame <= Game.YakuzaKiwami) {
-                            RepackCpKs.Add(cpkDataPath + ".cpk");
-                        }
                     }
                 
                     break;
@@ -264,10 +259,8 @@ public void AddFiles(string path, string check) {
     }
     
     protected static string CheckFolder(string name) {
-        foreach (var folder in Constants.IncompatiblePars.Where(name.StartsWith)) {
-            return folder;
-        }
-        
-        return "";
+        var folder = Constants.IncompatiblePars.FirstOrDefault(name.StartsWith);
+
+        return folder ?? string.Empty;
     }
 }
diff --git a/ShinRyuModManager-CE/ModLoadOrder/Mods/ModInfo.cs b/ShinRyuModManager-CE/ModLoadOrder/Mods/ModInfo.cs
index fc1c36c..8b728ba 100644
--- a/ShinRyuModManager-CE/ModLoadOrder/Mods/ModInfo.cs
+++ b/ShinRyuModManager-CE/ModLoadOrder/Mods/ModInfo.cs
@@ -3,8 +3,7 @@
 
 namespace ShinRyuModManager.ModLoadOrder.Mods;
 
-public partial class ModInfo : ObservableObject, IEquatable<ModInfo> {
-
+public sealed partial class ModInfo : ObservableObject, IEquatable<ModInfo> {
     [ObservableProperty] private string _name;
     [ObservableProperty] private bool _enabled;
 
diff --git a/ShinRyuModManager-CE/ModMeta.cs b/ShinRyuModManager-CE/ModMeta.cs
index ef24341..422c7d2 100644
--- a/ShinRyuModManager-CE/ModMeta.cs
+++ b/ShinRyuModManager-CE/ModMeta.cs
@@ -5,7 +5,7 @@ public class ModMeta {
     public string Author { get; internal set; }
     public string Version { get; internal set; }
     public string Description { get; internal set; }
-    public string Dependencies { get; internal init; }
+    public string Dependencies { get; internal set; }
 
     public static ModMeta GetPlaceholder() {
         return new ModMeta {
diff --git a/ShinRyuModManager-CE/ParRepacker.cs b/ShinRyuModManager-CE/ParRepacker.cs
index f63e31a..1b67ab7 100644
--- a/ShinRyuModManager-CE/ParRepacker.cs
+++ b/ShinRyuModManager-CE/ParRepacker.cs
@@ -207,7 +207,7 @@ private static List<string> GetModFiles(string path) {
         // Add files in current directory
         foreach (var p in Directory.GetFiles(path).Where(f => !f.EndsWith(Constants.VORTEX_MANAGED_FILE)).Select(GamePath.GetDataPathFrom)) {
             files.Add(p);
-            Log.Verbose("Adding file: {file}", p);
+            Log.Verbose("Adding file: {File}", p);
         }
         
         // Get files for all subdirectories
diff --git a/ShinRyuModManager-CE/Program.cs b/ShinRyuModManager-CE/Program.cs
index c1b2400..19cb89d 100644
--- a/ShinRyuModManager-CE/Program.cs
+++ b/ShinRyuModManager-CE/Program.cs
@@ -110,12 +110,13 @@ private static async Task MainCLI(string[] args) {
         var list = new List<string>(args);
         
         if (list.Contains("-h") || list.Contains("--help")) {
-            Log.Information("Usage: run without arguments to generate mod load order.");
-            
-            Log.Information("       run with \"-s\" or \"--silent\" flag to prevent checking for updates and remove prompts.");
+            Log.Information("""
+                            Usage: run without arguments to generate mod load order.
+                              -s, --silent     prevent checking for updates and remove prompts.
+                              -h, --help       show this message and exit.
+                            """);
             
             //Log.Information("       run with \"-r\" or \"--run\" flag to run the game after the program finishes.");
-            Log.Information("       run with \"-h\" or \"--help\" flag to show this message and exit.");
             
             return;
         }
@@ -270,7 +271,7 @@ internal static List<ModInfo> PreRun() {
                 _migrated = true;
                 
                 // Migrate old format to new
-                Log.Information("Old format load order file (" + Constants.TXT_OLD + ") was found. Importing to the new format...");
+                Log.Information("Old format load order file ({TxtOld}) was found. Importing to the new format...", Constants.TXT_OLD);
                 
                 mods.AddRange(ConvertOldToNewModList(ReadModLoadOrderTxt(Constants.TXT_OLD))
                     .Where(n => !mods.Any(m => EqualModNames(m.Name, n.Name))));
@@ -402,8 +403,8 @@ private static void PostRun() {
 
         // Calculate the checksum for the game's exe to inform the user if their version might be unsupported
         if (LogLevel <= LogEventLevel.Warning && InvalidGameExe()) {
-            Log.Error("Warning: Game version is unrecognized. Please use the latest Steam version of the game.");
-            Log.Error("Shin Ryu Mod Manager will still generate the load order, but the game might CRASH or not function properly");
+            Log.Error("Warning: Game version is unrecognized. Please use the latest Steam version of the game.\n" +
+                "Shin Ryu Mod Manager will still generate the load order, but the game might CRASH or not function properly");
         }
 
         if (!_isSilent) {
diff --git a/ShinRyuModManager-CE/ShinRyuModManager-CE.csproj b/ShinRyuModManager-CE/ShinRyuModManager-CE.csproj
index a19f24d..ddc1e64 100644
--- a/ShinRyuModManager-CE/ShinRyuModManager-CE.csproj
+++ b/ShinRyuModManager-CE/ShinRyuModManager-CE.csproj
@@ -45,7 +45,8 @@
         <PackageReference Include="Avalonia.Fonts.Inter" Version="11.3.8" />
         <PackageReference Include="Avalonia.Themes.Fluent" Version="11.3.8" />
         <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
-        <PackageReference Include="ini-parser" Version="2.5.2" />
+        <PackageReference Include="ini-parser-netstandard" Version="2.5.3" />
+        <PackageReference Include="JetBrains.Annotations" Version="2025.2.2" />
         <PackageReference Include="Markdown.Avalonia" Version="11.0.2" />
         <PackageReference Include="Microsoft.IO.RecyclableMemoryStream" Version="3.0.1" />
         <PackageReference Include="NetSparkleUpdater.UI.Avalonia" Version="3.0.4" />
diff --git a/ShinRyuModManager-CE/Utils.cs b/ShinRyuModManager-CE/Utils.cs
index 4282f06..5d9faea 100644
--- a/ShinRyuModManager-CE/Utils.cs
+++ b/ShinRyuModManager-CE/Utils.cs
@@ -9,14 +9,14 @@ namespace ShinRyuModManager;
 
 public static class Utils {
     // Static to be used through project
-    public static readonly HttpClient Client = new HttpClient();
+    public static HttpClient Client { get; } = new HttpClient();
     
     public static string NormalizeNameLower(string path) {
         return NormalizeSeparator(path.ToLowerInvariant());
     }
 
     public static string NormalizeToNodePath(string path) {
-        return NormalizeSeparator(path, NodeSystem.PathSeparator.ToCharArray()[0]);
+        return NormalizeSeparator(path, NodeSystem.PathSeparator[0]);
     }
     
     internal static bool IsFileLocked(string path) {
diff --git a/Utils/AssemblyVersion.cs b/Utils/AssemblyVersion.cs
index 2f98dfb..891e9e8 100644
--- a/Utils/AssemblyVersion.cs
+++ b/Utils/AssemblyVersion.cs
@@ -1,5 +1,4 @@
-using System.Diagnostics;
-using System.Reflection;
+using System.Reflection;
 
 namespace Utils;
 
diff --git a/Utils/GameHash.cs b/Utils/GameHash.cs
index 9ec51a3..fce478a 100644
--- a/Utils/GameHash.cs
+++ b/Utils/GameHash.cs
@@ -2,7 +2,7 @@
 
 namespace Utils;
 
-public class GameHash {
+public static class GameHash {
     public static bool ValidateFile(string path, Game game) {
         try {
             //Xbox doesnt like being read!