misc: chore: Use explicit types in HLE project

src/Ryujinx.HLE/Exceptions/ServiceNotImplementedException.cs

@@ -3,6 +3,7 @@ using Ryujinx.HLE.HOS;
 using Ryujinx.HLE.HOS.Ipc;
 using Ryujinx.HLE.HOS.Services;
 using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
 using System.Reflection;
@@ -53,12 +54,12 @@ namespace Ryujinx.HLE.Exceptions
             if (callingType != null && callingMethod != null)
             {
                 // If the type is past 0xF, we are using TIPC
-                var ipcCommands = Request.Type > IpcMessageType.TipcCloseSession ? Service.TipcCommands : Service.CmifCommands;
+                IReadOnlyDictionary<int, MethodInfo> ipcCommands = Request.Type > IpcMessageType.TipcCloseSession ? Service.TipcCommands : Service.CmifCommands;
 
                 // Find the handler for the method called
-                var ipcHandler = ipcCommands.FirstOrDefault(x => x.Value == callingMethod);
-                var ipcCommandId = ipcHandler.Key;
-                var ipcMethod = ipcHandler.Value;
+                KeyValuePair<int, MethodInfo> ipcHandler = ipcCommands.FirstOrDefault(x => x.Value == callingMethod);
+                int ipcCommandId = ipcHandler.Key;
+                MethodInfo ipcMethod = ipcHandler.Value;
 
                 if (ipcMethod != null)
                 {
@@ -83,7 +84,7 @@ namespace Ryujinx.HLE.Exceptions
                 {
                     sb.AppendLine("\tPtrBuff:");
 
-                    foreach (var buff in Request.PtrBuff)
+                    foreach (IpcPtrBuffDesc buff in Request.PtrBuff)
                     {
                         sb.AppendLine($"\t[{buff.Index}] Position: 0x{buff.Position:x16} Size: 0x{buff.Size:x16}");
                     }
@@ -93,7 +94,7 @@ namespace Ryujinx.HLE.Exceptions
                 {
                     sb.AppendLine("\tSendBuff:");
 
-                    foreach (var buff in Request.SendBuff)
+                    foreach (IpcBuffDesc buff in Request.SendBuff)
                     {
                         sb.AppendLine($"\tPosition: 0x{buff.Position:x16} Size: 0x{buff.Size:x16} Flags: {buff.Flags}");
                     }
@@ -103,7 +104,7 @@ namespace Ryujinx.HLE.Exceptions
                 {
                     sb.AppendLine("\tReceiveBuff:");
 
-                    foreach (var buff in Request.ReceiveBuff)
+                    foreach (IpcBuffDesc buff in Request.ReceiveBuff)
                     {
                         sb.AppendLine($"\tPosition: 0x{buff.Position:x16} Size: 0x{buff.Size:x16} Flags: {buff.Flags}");
                     }
@@ -113,7 +114,7 @@ namespace Ryujinx.HLE.Exceptions
                 {
                     sb.AppendLine("\tExchangeBuff:");
 
-                    foreach (var buff in Request.ExchangeBuff)
+                    foreach (IpcBuffDesc buff in Request.ExchangeBuff)
                     {
                         sb.AppendLine($"\tPosition: 0x{buff.Position:x16} Size: 0x{buff.Size:x16} Flags: {buff.Flags}");
                     }
@@ -123,7 +124,7 @@ namespace Ryujinx.HLE.Exceptions
                 {
                     sb.AppendLine("\tRecvListBuff:");
 
-                    foreach (var buff in Request.RecvListBuff)
+                    foreach (IpcRecvListBuffDesc buff in Request.RecvListBuff)
                     {
                         sb.AppendLine($"\tPosition: 0x{buff.Position:x16} Size: 0x{buff.Size:x16}");
                     }
@@ -147,8 +148,8 @@ namespace Ryujinx.HLE.Exceptions
             // Find the IIpcService method that threw this exception
             while ((frame = trace.GetFrame(i++)) != null)
             {
-                var method = frame.GetMethod();
-                var declType = method.DeclaringType;
+                MethodBase method = frame.GetMethod();
+                Type declType = method.DeclaringType;
 
                 if (typeof(IpcService).IsAssignableFrom(declType))
                 {

src/Ryujinx.HLE/FileSystem/ContentManager.cs

@@ -107,15 +107,15 @@ namespace Ryujinx.HLE.FileSystem
 
                 foreach (StorageId storageId in Enum.GetValues<StorageId>())
                 {
-                    if (!ContentPath.TryGetContentPath(storageId, out var contentPathString))
+                    if (!ContentPath.TryGetContentPath(storageId, out string contentPathString))
                     {
                         continue;
                     }
-                    if (!ContentPath.TryGetRealPath(contentPathString, out var contentDirectory))
+                    if (!ContentPath.TryGetRealPath(contentPathString, out string contentDirectory))
                     {
                         continue;
                     }
-                    var registeredDirectory = Path.Combine(contentDirectory, "registered");
+                    string registeredDirectory = Path.Combine(contentDirectory, "registered");
 
                     Directory.CreateDirectory(registeredDirectory);
 
@@ -170,7 +170,7 @@ namespace Ryujinx.HLE.FileSystem
                         }
                     }
 
-                    if (_locationEntries.TryGetValue(storageId, out var locationEntriesItem) && locationEntriesItem?.Count == 0)
+                    if (_locationEntries.TryGetValue(storageId, out LinkedList<LocationEntry> locationEntriesItem) && locationEntriesItem?.Count == 0)
                     {
                         _locationEntries.Remove(storageId);
                     }
@@ -200,7 +200,7 @@ namespace Ryujinx.HLE.FileSystem
 
                 if (!mergedToContainer)
                 {
-                    using var pfs = PartitionFileSystemUtils.OpenApplicationFileSystem(containerPath, _virtualFileSystem);
+                    using IFileSystem pfs = PartitionFileSystemUtils.OpenApplicationFileSystem(containerPath, _virtualFileSystem);
                 }
             }
         }
@@ -217,17 +217,17 @@ namespace Ryujinx.HLE.FileSystem
 
             if (AocData.TryGetValue(aocTitleId, out AocItem aoc))
             {
-                var file = new FileStream(aoc.ContainerPath, FileMode.Open, FileAccess.Read);
-                using var ncaFile = new UniqueRef<IFile>();
+                FileStream file = new FileStream(aoc.ContainerPath, FileMode.Open, FileAccess.Read);
+                using UniqueRef<IFile> ncaFile = new UniqueRef<IFile>();
 
                 switch (Path.GetExtension(aoc.ContainerPath))
                 {
                     case ".xci":
-                        var xci = new Xci(_virtualFileSystem.KeySet, file.AsStorage()).OpenPartition(XciPartitionType.Secure);
+                        XciPartition xci = new Xci(_virtualFileSystem.KeySet, file.AsStorage()).OpenPartition(XciPartitionType.Secure);
                         xci.OpenFile(ref ncaFile.Ref, aoc.NcaPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
                         break;
                     case ".nsp":
-                        var pfs = new PartitionFileSystem();
+                        PartitionFileSystem pfs = new PartitionFileSystem();
                         pfs.Initialize(file.AsStorage());
                         pfs.OpenFile(ref ncaFile.Ref, aoc.NcaPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
                         break;
@@ -278,7 +278,7 @@ namespace Ryujinx.HLE.FileSystem
             {
                 if (_contentDictionary.ContainsValue(ncaId))
                 {
-                    var content = _contentDictionary.FirstOrDefault(x => x.Value == ncaId);
+                    KeyValuePair<(ulong titleId, NcaContentType type), string> content = _contentDictionary.FirstOrDefault(x => x.Value == ncaId);
                     ulong titleId = content.Key.titleId;
 
                     NcaContentType contentType = content.Key.type;
@@ -295,7 +295,7 @@ namespace Ryujinx.HLE.FileSystem
         {
             lock (_lock)
             {
-                if (_contentDictionary.TryGetValue((titleId, contentType), out var contentDictionaryItem))
+                if (_contentDictionary.TryGetValue((titleId, contentType), out string contentDictionaryItem))
                 {
                     return UInt128Utils.FromHex(contentDictionaryItem);
                 }
@@ -430,8 +430,8 @@ namespace Ryujinx.HLE.FileSystem
 
         public void InstallFirmware(string firmwareSource)
         {
-            ContentPath.TryGetContentPath(StorageId.BuiltInSystem, out var contentPathString);
-            ContentPath.TryGetRealPath(contentPathString, out var contentDirectory);
+            ContentPath.TryGetContentPath(StorageId.BuiltInSystem, out string contentPathString);
+            ContentPath.TryGetRealPath(contentPathString, out string contentDirectory);
             string registeredDirectory = Path.Combine(contentDirectory, "registered");
             string temporaryDirectory = Path.Combine(contentDirectory, "temp");
 
@@ -480,7 +480,7 @@ namespace Ryujinx.HLE.FileSystem
         {
             if (Directory.Exists(keysSource))
             {
-                foreach (var filePath in Directory.EnumerateFiles(keysSource, "*.keys"))
+                foreach (string filePath in Directory.EnumerateFiles(keysSource, "*.keys"))
                 {
                     VerifyKeysFile(filePath);
                     File.Copy(filePath, Path.Combine(installDirectory, Path.GetFileName(filePath)), true);
@@ -523,7 +523,7 @@ namespace Ryujinx.HLE.FileSystem
                 Directory.Delete(temporaryDirectory, true);
             }
             Directory.CreateDirectory(temporaryDirectory);
-            foreach (var entry in archive.Entries)
+            foreach (ZipArchiveEntry entry in archive.Entries)
             {
                 if (Path.GetExtension(entry.FullName).Equals(".keys", StringComparison.OrdinalIgnoreCase))
                 {
@@ -563,7 +563,7 @@ namespace Ryujinx.HLE.FileSystem
 
         private void InstallFromPartition(IFileSystem filesystem, string temporaryDirectory)
         {
-            foreach (var entry in filesystem.EnumerateEntries("/", "*.nca"))
+            foreach (DirectoryEntryEx entry in filesystem.EnumerateEntries("/", "*.nca"))
             {
                 Nca nca = new(_virtualFileSystem.KeySet, OpenPossibleFragmentedFile(filesystem, entry.FullPath, OpenMode.Read).AsStorage());
 
@@ -587,7 +587,7 @@ namespace Ryujinx.HLE.FileSystem
 
         private static void InstallFromZip(ZipArchive archive, string temporaryDirectory)
         {
-            foreach (var entry in archive.Entries)
+            foreach (ZipArchiveEntry entry in archive.Entries)
             {
                 if (entry.FullName.EndsWith(".nca") || entry.FullName.EndsWith(".nca/00"))
                 {
@@ -627,7 +627,7 @@ namespace Ryujinx.HLE.FileSystem
 
         private static IFile OpenPossibleFragmentedFile(IFileSystem filesystem, string path, OpenMode mode)
         {
-            using var file = new UniqueRef<IFile>();
+            using UniqueRef<IFile> file = new UniqueRef<IFile>();
 
             if (filesystem.FileExists($"{path}/00"))
             {
@@ -697,7 +697,7 @@ namespace Ryujinx.HLE.FileSystem
             {
                 SystemVersion systemVersion = null;
 
-                foreach (var entry in archive.Entries)
+                foreach (ZipArchiveEntry entry in archive.Entries)
                 {
                     if (entry.FullName.EndsWith(".nca") || entry.FullName.EndsWith(".nca/00"))
                     {
@@ -706,7 +706,7 @@ namespace Ryujinx.HLE.FileSystem
 
                         Nca nca = new(_virtualFileSystem.KeySet, storage);
 
-                        if (updateNcas.TryGetValue(nca.Header.TitleId, out var updateNcasItem))
+                        if (updateNcas.TryGetValue(nca.Header.TitleId, out List<(NcaContentType type, string path)> updateNcasItem))
                         {
                             updateNcasItem.Add((nca.Header.ContentType, entry.FullName));
                         }
@@ -717,13 +717,13 @@ namespace Ryujinx.HLE.FileSystem
                     }
                 }
 
-                if (updateNcas.TryGetValue(SystemUpdateTitleId, out var ncaEntry))
+                if (updateNcas.TryGetValue(SystemUpdateTitleId, out List<(NcaContentType type, string path)> ncaEntry))
                 {
                     string metaPath = ncaEntry.FirstOrDefault(x => x.type == NcaContentType.Meta).path;
 
                     CnmtContentMetaEntry[] metaEntries = null;
 
-                    var fileEntry = archive.GetEntry(metaPath);
+                    ZipArchiveEntry fileEntry = archive.GetEntry(metaPath);
 
                     using (Stream ncaStream = GetZipStream(fileEntry))
                     {
@@ -733,11 +733,11 @@ namespace Ryujinx.HLE.FileSystem
 
                         string cnmtPath = fs.EnumerateEntries("/", "*.cnmt").Single().FullPath;
 
-                        using var metaFile = new UniqueRef<IFile>();
+                        using UniqueRef<IFile> metaFile = new UniqueRef<IFile>();
 
                         if (fs.OpenFile(ref metaFile.Ref, cnmtPath.ToU8Span(), OpenMode.Read).IsSuccess())
                         {
-                            var meta = new Cnmt(metaFile.Get.AsStream());
+                            Cnmt meta = new Cnmt(metaFile.Get.AsStream());
 
                             if (meta.Type == ContentMetaType.SystemUpdate)
                             {
@@ -753,16 +753,16 @@ namespace Ryujinx.HLE.FileSystem
                         throw new FileNotFoundException("System update title was not found in the firmware package.");
                     }
 
-                    if (updateNcas.TryGetValue(SystemVersionTitleId, out var updateNcasItem))
+                    if (updateNcas.TryGetValue(SystemVersionTitleId, out List<(NcaContentType type, string path)> updateNcasItem))
                     {
                         string versionEntry = updateNcasItem.FirstOrDefault(x => x.type != NcaContentType.Meta).path;
 
                         using Stream ncaStream = GetZipStream(archive.GetEntry(versionEntry));
                         Nca nca = new(_virtualFileSystem.KeySet, ncaStream.AsStorage());
 
-                        var romfs = nca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.ErrorOnInvalid);
+                        IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.ErrorOnInvalid);
 
-                        using var systemVersionFile = new UniqueRef<IFile>();
+                        using UniqueRef<IFile> systemVersionFile = new UniqueRef<IFile>();
 
                         if (romfs.OpenFile(ref systemVersionFile.Ref, "/file".ToU8Span(), OpenMode.Read).IsSuccess())
                         {
@@ -798,11 +798,11 @@ namespace Ryujinx.HLE.FileSystem
 
                             string cnmtPath = fs.EnumerateEntries("/", "*.cnmt").Single().FullPath;
 
-                            using var metaFile = new UniqueRef<IFile>();
+                            using UniqueRef<IFile> metaFile = new UniqueRef<IFile>();
 
                             if (fs.OpenFile(ref metaFile.Ref, cnmtPath.ToU8Span(), OpenMode.Read).IsSuccess())
                             {
-                                var meta = new Cnmt(metaFile.Get.AsStream());
+                                Cnmt meta = new Cnmt(metaFile.Get.AsStream());
 
                                 IStorage contentStorage = contentNcaStream.AsStorage();
                                 if (contentStorage.GetSize(out long size).IsSuccess())
@@ -830,9 +830,9 @@ namespace Ryujinx.HLE.FileSystem
                     {
                         StringBuilder extraNcas = new();
 
-                        foreach (var entry in updateNcas)
+                        foreach (KeyValuePair<ulong, List<(NcaContentType type, string path)>> entry in updateNcas)
                         {
-                            foreach (var (type, path) in entry.Value)
+                            foreach ((NcaContentType type, string path) in entry.Value)
                             {
                                 extraNcas.AppendLine(path);
                             }
@@ -855,7 +855,7 @@ namespace Ryujinx.HLE.FileSystem
 
                 CnmtContentMetaEntry[] metaEntries = null;
 
-                foreach (var entry in filesystem.EnumerateEntries("/", "*.nca"))
+                foreach (DirectoryEntryEx entry in filesystem.EnumerateEntries("/", "*.nca"))
                 {
                     IStorage ncaStorage = OpenPossibleFragmentedFile(filesystem, entry.FullPath, OpenMode.Read).AsStorage();
 
@@ -867,11 +867,11 @@ namespace Ryujinx.HLE.FileSystem
 
                         string cnmtPath = fs.EnumerateEntries("/", "*.cnmt").Single().FullPath;
 
-                        using var metaFile = new UniqueRef<IFile>();
+                        using UniqueRef<IFile> metaFile = new UniqueRef<IFile>();
 
                         if (fs.OpenFile(ref metaFile.Ref, cnmtPath.ToU8Span(), OpenMode.Read).IsSuccess())
                         {
-                            var meta = new Cnmt(metaFile.Get.AsStream());
+                            Cnmt meta = new Cnmt(metaFile.Get.AsStream());
 
                             if (meta.Type == ContentMetaType.SystemUpdate)
                             {
@@ -883,9 +883,9 @@ namespace Ryujinx.HLE.FileSystem
                     }
                     else if (nca.Header.TitleId == SystemVersionTitleId && nca.Header.ContentType == NcaContentType.Data)
                     {
-                        var romfs = nca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.ErrorOnInvalid);
+                        IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.ErrorOnInvalid);
 
-                        using var systemVersionFile = new UniqueRef<IFile>();
+                        using UniqueRef<IFile> systemVersionFile = new UniqueRef<IFile>();
 
                         if (romfs.OpenFile(ref systemVersionFile.Ref, "/file".ToU8Span(), OpenMode.Read).IsSuccess())
                         {
@@ -893,7 +893,7 @@ namespace Ryujinx.HLE.FileSystem
                         }
                     }
 
-                    if (updateNcas.TryGetValue(nca.Header.TitleId, out var updateNcasItem))
+                    if (updateNcas.TryGetValue(nca.Header.TitleId, out List<(NcaContentType type, string path)> updateNcasItem))
                     {
                         updateNcasItem.Add((nca.Header.ContentType, entry.FullPath));
                     }
@@ -912,7 +912,7 @@ namespace Ryujinx.HLE.FileSystem
 
                 foreach (CnmtContentMetaEntry metaEntry in metaEntries)
                 {
-                    if (updateNcas.TryGetValue(metaEntry.TitleId, out var ncaEntry))
+                    if (updateNcas.TryGetValue(metaEntry.TitleId, out List<(NcaContentType type, string path)> ncaEntry))
                     {
                         string metaNcaPath = ncaEntry.FirstOrDefault(x => x.type == NcaContentType.Meta).path;
                         string contentPath = ncaEntry.FirstOrDefault(x => x.type != NcaContentType.Meta).path;
@@ -935,11 +935,11 @@ namespace Ryujinx.HLE.FileSystem
 
                         string cnmtPath = fs.EnumerateEntries("/", "*.cnmt").Single().FullPath;
 
-                        using var metaFile = new UniqueRef<IFile>();
+                        using UniqueRef<IFile> metaFile = new UniqueRef<IFile>();
 
                         if (fs.OpenFile(ref metaFile.Ref, cnmtPath.ToU8Span(), OpenMode.Read).IsSuccess())
                         {
-                            var meta = new Cnmt(metaFile.Get.AsStream());
+                            Cnmt meta = new Cnmt(metaFile.Get.AsStream());
 
                             if (contentStorage.GetSize(out long size).IsSuccess())
                             {
@@ -966,9 +966,9 @@ namespace Ryujinx.HLE.FileSystem
                 {
                     StringBuilder extraNcas = new();
 
-                    foreach (var entry in updateNcas)
+                    foreach (KeyValuePair<ulong, List<(NcaContentType type, string path)>> entry in updateNcas)
                     {
-                        foreach (var (type, path) in entry.Value)
+                        foreach ((NcaContentType type, string path) in entry.Value)
                         {
                             extraNcas.AppendLine(path);
                         }
@@ -987,22 +987,22 @@ namespace Ryujinx.HLE.FileSystem
 
             lock (_lock)
             {
-                var locationEnties = _locationEntries[StorageId.BuiltInSystem];
+                LinkedList<LocationEntry> locationEnties = _locationEntries[StorageId.BuiltInSystem];
 
-                foreach (var entry in locationEnties)
+                foreach (LocationEntry entry in locationEnties)
                 {
                     if (entry.ContentType == NcaContentType.Data)
                     {
-                        var path = VirtualFileSystem.SwitchPathToSystemPath(entry.ContentPath);
+                        string path = VirtualFileSystem.SwitchPathToSystemPath(entry.ContentPath);
 
                         using FileStream fileStream = File.OpenRead(path);
                         Nca nca = new(_virtualFileSystem.KeySet, fileStream.AsStorage());
 
                         if (nca.Header.TitleId == SystemVersionTitleId && nca.Header.ContentType == NcaContentType.Data)
                         {
-                            var romfs = nca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.ErrorOnInvalid);
+                            IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.ErrorOnInvalid);
 
-                            using var systemVersionFile = new UniqueRef<IFile>();
+                            using UniqueRef<IFile> systemVersionFile = new UniqueRef<IFile>();
 
                             if (romfs.OpenFile(ref systemVersionFile.Ref, "/file".ToU8Span(), OpenMode.Read).IsSuccess())
                             {
@@ -1073,7 +1073,7 @@ namespace Ryujinx.HLE.FileSystem
         public bool AreKeysAlredyPresent(string pathToCheck)
         {
             string[] fileNames = { "prod.keys", "title.keys", "console.keys", "dev.keys" };
-            foreach (var file in fileNames)
+            foreach (string file in fileNames)
             {
                 if (File.Exists(Path.Combine(pathToCheck, file)))
                 {

src/Ryujinx.HLE/FileSystem/ContentMetaData.cs

@@ -39,7 +39,7 @@ namespace Ryujinx.HLE.FileSystem
             // TODO: Replace this with a check for IdOffset as soon as LibHac supports it:
             // && entry.IdOffset == programIndex
 
-            foreach (var entry in _cnmt.ContentEntries)
+            foreach (CnmtContentEntry entry in _cnmt.ContentEntries)
             {
                 if (entry.Type != type)
                 {

src/Ryujinx.HLE/FileSystem/VirtualFileSystem.cs

@@ -61,7 +61,7 @@ namespace Ryujinx.HLE.FileSystem
 
         public void LoadRomFs(ulong pid, string fileName)
         {
-            var romfsStream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
+            FileStream romfsStream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
 
             _romFsByPid.AddOrUpdate(pid, romfsStream, (pid, oldStream) =>
             {
@@ -140,8 +140,8 @@ namespace Ryujinx.HLE.FileSystem
                     return $"{rawPath}:/";
                 }
 
-                var basePath = rawPath.AsSpan(0, firstSeparatorOffset);
-                var fileName = rawPath.AsSpan(firstSeparatorOffset + 1);
+                ReadOnlySpan<char> basePath = rawPath.AsSpan(0, firstSeparatorOffset);
+                ReadOnlySpan<char> fileName = rawPath.AsSpan(firstSeparatorOffset + 1);
 
                 return $"{basePath}:/{fileName}";
             }
@@ -194,7 +194,7 @@ namespace Ryujinx.HLE.FileSystem
             }
 
             fsServerClient = horizon.CreatePrivilegedHorizonClient();
-            var fsServer = new FileSystemServer(fsServerClient);
+            FileSystemServer fsServer = new FileSystemServer(fsServerClient);
 
             RandomDataGenerator randomGenerator = Random.Shared.NextBytes;
 
@@ -208,7 +208,7 @@ namespace Ryujinx.HLE.FileSystem
 
             SdCard.SetSdCardInserted(true);
 
-            var fsServerConfig = new FileSystemServerConfig
+            FileSystemServerConfig fsServerConfig = new FileSystemServerConfig
             {
                 ExternalKeySet = KeySet.ExternalKeySet,
                 FsCreators = fsServerObjects.FsCreators,
@@ -270,7 +270,7 @@ namespace Ryujinx.HLE.FileSystem
         {
             foreach (DirectoryEntryEx ticketEntry in fs.EnumerateEntries("/", "*.tik"))
             {
-                using var ticketFile = new UniqueRef<IFile>();
+                using UniqueRef<IFile> ticketFile = new UniqueRef<IFile>();
 
                 Result result = fs.OpenFile(ref ticketFile.Ref, ticketEntry.FullPath.ToU8Span(), OpenMode.Read);
 
@@ -286,7 +286,7 @@ namespace Ryujinx.HLE.FileSystem
                         continue;
 
                     Ticket ticket = new(new MemoryStream(ticketData));
-                    var titleKey = ticket.GetTitleKey(KeySet);
+                    byte[] titleKey = ticket.GetTitleKey(KeySet);
 
                     if (titleKey != null)
                     {
@@ -334,7 +334,7 @@ namespace Ryujinx.HLE.FileSystem
         {
             Span<SaveDataInfo> info = stackalloc SaveDataInfo[8];
 
-            using var iterator = new UniqueRef<SaveDataIterator>();
+            using UniqueRef<SaveDataIterator> iterator = new UniqueRef<SaveDataIterator>();
 
             Result rc = hos.Fs.OpenSaveDataIterator(ref iterator.Ref, spaceId);
             if (rc.IsFailure())
@@ -398,7 +398,7 @@ namespace Ryujinx.HLE.FileSystem
             }
 
             const string MountName = "SaveDir";
-            var mountNameU8 = MountName.ToU8Span();
+            U8Span mountNameU8 = MountName.ToU8Span();
 
             BisPartitionId partitionId = info.SpaceId switch
             {
@@ -415,7 +415,7 @@ namespace Ryujinx.HLE.FileSystem
 
             try
             {
-                var path = $"{MountName}:/save/{info.SaveDataId:x16}".ToU8Span();
+                U8Span path = $"{MountName}:/save/{info.SaveDataId:x16}".ToU8Span();
 
                 rc = hos.Fs.GetEntryType(out _, path);
 
@@ -437,7 +437,7 @@ namespace Ryujinx.HLE.FileSystem
         {
             list = null;
 
-            var mountName = "system".ToU8Span();
+            U8Span mountName = "system".ToU8Span();
             DirectoryHandle handle = default;
             List<ulong> localList = new();
 
@@ -498,7 +498,7 @@ namespace Ryujinx.HLE.FileSystem
         // Only save data IDs added to SystemExtraDataFixInfo will be fixed.
         private static Result FixUnindexedSystemSaves(HorizonClient hos, List<ulong> existingSaveIds)
         {
-            foreach (var fixInfo in _systemExtraDataFixInfo)
+            foreach (ExtraDataFixInfo fixInfo in _systemExtraDataFixInfo)
             {
                 if (!existingSaveIds.Contains(fixInfo.StaticSaveDataId))
                 {
@@ -665,7 +665,7 @@ namespace Ryujinx.HLE.FileSystem
         {
             if (disposing)
             {
-                foreach (var stream in _romFsByPid.Values)
+                foreach (Stream stream in _romFsByPid.Values)
                 {
                     stream.Close();
                 }

src/Ryujinx.HLE/HOS/Applets/Error/ErrorApplet.cs

@@ -122,7 +122,7 @@ namespace Ryujinx.HLE.HOS.Applets.Error
 
             if (romfs.FileExists(filePath))
             {
-                using var binaryFile = new UniqueRef<IFile>();
+                using UniqueRef<IFile> binaryFile = new UniqueRef<IFile>();
 
                 romfs.OpenFile(ref binaryFile.Ref, filePath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
                 StreamReader reader = new(binaryFile.Get.AsStream(), Encoding.Unicode);

src/Ryujinx.HLE/HOS/Applets/SoftwareKeyboard/SoftwareKeyboardApplet.cs

@@ -81,8 +81,8 @@ namespace Ryujinx.HLE.HOS.Applets
 
                 _interactiveSession.DataAvailable += OnInteractiveData;
 
-                var launchParams = _normalSession.Pop();
-                var keyboardConfig = _normalSession.Pop();
+                byte[] launchParams = _normalSession.Pop();
+                byte[] keyboardConfig = _normalSession.Pop();
 
                 _isBackground = keyboardConfig.Length == Unsafe.SizeOf<SoftwareKeyboardInitialize>();
 
@@ -205,7 +205,7 @@ namespace Ryujinx.HLE.HOS.Applets
             else
             {
                 // Call the configured GUI handler to get user's input.
-                var args = new SoftwareKeyboardUIArgs
+                SoftwareKeyboardUIArgs args = new SoftwareKeyboardUIArgs
                 {
                     KeyboardMode = _keyboardForegroundConfig.Mode,
                     HeaderText = StripUnicodeControlCodes(_keyboardForegroundConfig.HeaderText),
@@ -265,7 +265,7 @@ namespace Ryujinx.HLE.HOS.Applets
         private void OnInteractiveData(object sender, EventArgs e)
         {
             // Obtain the validation status response.
-            var data = _interactiveSession.Pop();
+            byte[] data = _interactiveSession.Pop();
 
             if (_isBackground)
             {
@@ -320,7 +320,7 @@ namespace Ryujinx.HLE.HOS.Applets
             using MemoryStream stream = new(data);
             using BinaryReader reader = new(stream);
 
-            var request = (InlineKeyboardRequest)reader.ReadUInt32();
+            InlineKeyboardRequest request = (InlineKeyboardRequest)reader.ReadUInt32();
 
             long remaining;
 
@@ -400,14 +400,14 @@ namespace Ryujinx.HLE.HOS.Applets
                     remaining = stream.Length - stream.Position;
                     if (remaining == Marshal.SizeOf<SoftwareKeyboardCalc>())
                     {
-                        var keyboardCalcData = reader.ReadBytes((int)remaining);
-                        var keyboardCalc = ReadStruct<SoftwareKeyboardCalc>(keyboardCalcData);
+                        byte[] keyboardCalcData = reader.ReadBytes((int)remaining);
+                        SoftwareKeyboardCalc keyboardCalc = ReadStruct<SoftwareKeyboardCalc>(keyboardCalcData);
 
                         newCalc = keyboardCalc.ToExtended();
                     }
                     else if (remaining == Marshal.SizeOf<SoftwareKeyboardCalcEx>() || remaining == SoftwareKeyboardCalcEx.AlternativeSize)
                     {
-                        var keyboardCalcData = reader.ReadBytes((int)remaining);
+                        byte[] keyboardCalcData = reader.ReadBytes((int)remaining);
 
                         newCalc = ReadStruct<SoftwareKeyboardCalcEx>(keyboardCalcData);
                     }

src/Ryujinx.HLE/HOS/Applets/SoftwareKeyboard/SoftwareKeyboardRenderer.cs

@@ -117,8 +117,8 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
                 _state.OverwriteMode = overwriteMode.GetValueOrDefault(_state.OverwriteMode);
                 _state.TypingEnabled = typingEnabled.GetValueOrDefault(_state.TypingEnabled);
 
-                var begin = _state.CursorBegin;
-                var end = _state.CursorEnd;
+                int begin = _state.CursorBegin;
+                int end = _state.CursorEnd;
                 _state.CursorBegin = Math.Min(begin, end);
                 _state.CursorEnd = Math.Max(begin, end);
 

src/Ryujinx.HLE/HOS/Applets/SoftwareKeyboard/SoftwareKeyboardRendererBase.cs

@@ -75,10 +75,10 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
             _padCancelIcon = LoadResource(typeof(SoftwareKeyboardRendererBase).Assembly, padCancelIconPath, 0, 0);
             _keyModeIcon = LoadResource(typeof(SoftwareKeyboardRendererBase).Assembly, keyModeIconPath, 0, 0);
 
-            var panelColor = ToColor(uiTheme.DefaultBackgroundColor, 255);
-            var panelTransparentColor = ToColor(uiTheme.DefaultBackgroundColor, 150);
-            var borderColor = ToColor(uiTheme.DefaultBorderColor);
-            var selectionBackgroundColor = ToColor(uiTheme.SelectionBackgroundColor);
+            SKColor panelColor = ToColor(uiTheme.DefaultBackgroundColor, 255);
+            SKColor panelTransparentColor = ToColor(uiTheme.DefaultBackgroundColor, 150);
+            SKColor borderColor = ToColor(uiTheme.DefaultBorderColor);
+            SKColor selectionBackgroundColor = ToColor(uiTheme.SelectionBackgroundColor);
 
             _textNormalColor = ToColor(uiTheme.DefaultForegroundColor);
             _textSelectedColor = ToColor(uiTheme.SelectionForegroundColor);
@@ -134,7 +134,7 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
             {
                 try
                 {
-                    using var typeface = SKTypeface.FromFamilyName(fontFamily, SKFontStyle.Normal);
+                    using SKTypeface typeface = SKTypeface.FromFamilyName(fontFamily, SKFontStyle.Normal);
                     _messageFont = new SKFont(typeface, 26);
                     _inputTextFont = new SKFont(typeface, _inputTextFontSize);
                     _labelsTextFont = new SKFont(typeface, 24);
@@ -151,10 +151,10 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
 
         private static SKColor ToColor(ThemeColor color, byte? overrideAlpha = null, bool flipRgb = false)
         {
-            var a = (byte)(color.A * 255);
-            var r = (byte)(color.R * 255);
-            var g = (byte)(color.G * 255);
-            var b = (byte)(color.B * 255);
+            byte a = (byte)(color.A * 255);
+            byte r = (byte)(color.R * 255);
+            byte g = (byte)(color.G * 255);
+            byte b = (byte)(color.B * 255);
 
             if (flipRgb)
             {
@@ -177,11 +177,11 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
         {
             Debug.Assert(resourceStream != null);
 
-            var bitmap = SKBitmap.Decode(resourceStream);
+            SKBitmap bitmap = SKBitmap.Decode(resourceStream);
 
             if (newHeight != 0 && newWidth != 0)
             {
-                var resized = bitmap.Resize(new SKImageInfo(newWidth, newHeight), SKFilterQuality.High);
+                SKBitmap resized = bitmap.Resize(new SKImageInfo(newWidth, newHeight), SKFilterQuality.High);
                 if (resized != null)
                 {
                     bitmap.Dispose();
@@ -198,7 +198,7 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
             {
                 return;
             }
-            var canvas = _surface.Canvas;
+            SKCanvas canvas = _surface.Canvas;
 
             canvas.Clear(SKColors.Transparent);
             canvas.DrawRect(_panelRectangle, _panelBrush);
@@ -219,18 +219,18 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
                 return;
             }
 
-            using var paint = new SKPaint(_messageFont)
+            using SKPaint paint = new SKPaint(_messageFont)
             {
                 Color = _textNormalColor,
                 IsAntialias = true
             };
 
-            var canvas = _surface.Canvas;
-            var messageRectangle = MeasureString(MessageText, paint);
+            SKCanvas canvas = _surface.Canvas;
+            SKRect messageRectangle = MeasureString(MessageText, paint);
             float messagePositionX = (_panelRectangle.Width - messageRectangle.Width) / 2 - messageRectangle.Left;
             float messagePositionY = _messagePositionY - messageRectangle.Top;
-            var messagePosition = new SKPoint(messagePositionX, messagePositionY);
-            var messageBoundRectangle = SKRect.Create(messagePositionX, messagePositionY, messageRectangle.Width, messageRectangle.Height);
+            SKPoint messagePosition = new SKPoint(messagePositionX, messagePositionY);
+            SKRect messageBoundRectangle = SKRect.Create(messagePositionX, messagePositionY, messageRectangle.Width, messageRectangle.Height);
 
             canvas.DrawRect(messageBoundRectangle, _panelBrush);
 
@@ -336,12 +336,12 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
 
         private void DrawTextBox(SKCanvas canvas, SoftwareKeyboardUIState state)
         {
-            using var textPaint = new SKPaint(_labelsTextFont)
+            using SKPaint textPaint = new SKPaint(_labelsTextFont)
             {
                 IsAntialias = true,
                 Color = _textNormalColor
             };
-            var inputTextRectangle = MeasureString(state.InputText, textPaint);
+            SKRect inputTextRectangle = MeasureString(state.InputText, textPaint);
 
             float boxWidth = (int)(Math.Max(300, inputTextRectangle.Width + inputTextRectangle.Left + 8));
             float boxHeight = 32;
@@ -360,7 +360,7 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
             float inputTextX = (_panelRectangle.Width - inputTextRectangle.Width) / 2 - inputTextRectangle.Left;
             float inputTextY = boxY + 5;
 
-            var inputTextPosition = new SKPoint(inputTextX, inputTextY);
+            SKPoint inputTextPosition = new SKPoint(inputTextX, inputTextY);
             canvas.DrawText(state.InputText, inputTextPosition.X, inputTextPosition.Y + (_labelsTextFont.Metrics.XHeight + _labelsTextFont.Metrics.Descent), textPaint);
 
             // Draw the cursor on top of the text and redraw the text with a different color if necessary.
@@ -387,8 +387,8 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
                 ReadOnlySpan<char> textUntilBegin = state.InputText.AsSpan(0, state.CursorBegin);
                 ReadOnlySpan<char> textUntilEnd = state.InputText.AsSpan(0, state.CursorEnd);
 
-                var selectionBeginRectangle = MeasureString(textUntilBegin, textPaint);
-                var selectionEndRectangle = MeasureString(textUntilEnd, textPaint);
+                SKRect selectionBeginRectangle = MeasureString(textUntilBegin, textPaint);
+                SKRect selectionEndRectangle = MeasureString(textUntilEnd, textPaint);
 
                 cursorVisible = true;
                 cursorPositionXLeft = inputTextX + selectionBeginRectangle.Width + selectionBeginRectangle.Left;
@@ -406,7 +406,7 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
 
                     int cursorBegin = Math.Min(state.InputText.Length, state.CursorBegin);
                     ReadOnlySpan<char> textUntilCursor = state.InputText.AsSpan(0, cursorBegin);
-                    var cursorTextRectangle = MeasureString(textUntilCursor, textPaint);
+                    SKRect cursorTextRectangle = MeasureString(textUntilCursor, textPaint);
 
                     cursorVisible = true;
                     cursorPositionXLeft = inputTextX + cursorTextRectangle.Width + cursorTextRectangle.Left;
@@ -452,16 +452,16 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
                 }
                 else
                 {
-                    var cursorRectangle = SKRect.Create(cursorPositionXLeft, cursorPositionYTop, cursorWidth, cursorHeight);
+                    SKRect cursorRectangle = SKRect.Create(cursorPositionXLeft, cursorPositionYTop, cursorWidth, cursorHeight);
 
                     canvas.DrawRect(cursorRectangle, cursorPen);
                     canvas.DrawRect(cursorRectangle, cursorBrush);
 
-                    using var textOverCursor = SKSurface.Create(new SKImageInfo((int)cursorRectangle.Width, (int)cursorRectangle.Height, SKColorType.Rgba8888));
-                    var textOverCanvas = textOverCursor.Canvas;
-                    var textRelativePosition = new SKPoint(inputTextPosition.X - cursorRectangle.Left, inputTextPosition.Y - cursorRectangle.Top);
+                    using SKSurface textOverCursor = SKSurface.Create(new SKImageInfo((int)cursorRectangle.Width, (int)cursorRectangle.Height, SKColorType.Rgba8888));
+                    SKCanvas textOverCanvas = textOverCursor.Canvas;
+                    SKPoint textRelativePosition = new SKPoint(inputTextPosition.X - cursorRectangle.Left, inputTextPosition.Y - cursorRectangle.Top);
 
-                    using var cursorPaint = new SKPaint(_inputTextFont)
+                    using SKPaint cursorPaint = new SKPaint(_inputTextFont)
                     {
                         Color = cursorTextColor,
                         IsAntialias = true
@@ -469,7 +469,7 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
 
                     textOverCanvas.DrawText(state.InputText, textRelativePosition.X, textRelativePosition.Y + _inputTextFont.Metrics.XHeight + _inputTextFont.Metrics.Descent, cursorPaint);
 
-                    var cursorPosition = new SKPoint((int)cursorRectangle.Left, (int)cursorRectangle.Top);
+                    SKPoint cursorPosition = new SKPoint((int)cursorRectangle.Left, (int)cursorRectangle.Top);
                     textOverCursor.Flush();
                     canvas.DrawSurface(textOverCursor, cursorPosition);
                 }
@@ -492,13 +492,13 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
             float iconWidth = icon.Width;
             float iconHeight = icon.Height;
 
-            using var paint = new SKPaint(_labelsTextFont)
+            using SKPaint paint = new SKPaint(_labelsTextFont)
             {
                 Color = _textNormalColor,
                 IsAntialias = true
             };
 
-            var labelRectangle = MeasureString(label, paint);
+            SKRect labelRectangle = MeasureString(label, paint);
 
             float labelPositionX = iconWidth + 8 - labelRectangle.Left;
             float labelPositionY = 3;
@@ -514,13 +514,13 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
             iconX += originX;
             iconY += originY;
 
-            var iconPosition = new SKPoint((int)iconX, (int)iconY);
-            var labelPosition = new SKPoint(labelPositionX + originX, labelPositionY + originY);
+            SKPoint iconPosition = new SKPoint((int)iconX, (int)iconY);
+            SKPoint labelPosition = new SKPoint(labelPositionX + originX, labelPositionY + originY);
 
-            var selectedRectangle = SKRect.Create(originX - 2 * _padPressedPenWidth, originY - 2 * _padPressedPenWidth,
+            SKRect selectedRectangle = SKRect.Create(originX - 2 * _padPressedPenWidth, originY - 2 * _padPressedPenWidth,
                 fullWidth + 4 * _padPressedPenWidth, fullHeight + 4 * _padPressedPenWidth);
 
-            var boundRectangle = SKRect.Create(originX, originY, fullWidth, fullHeight);
+            SKRect boundRectangle = SKRect.Create(originX, originY, fullWidth, fullHeight);
             boundRectangle.Inflate(4 * _padPressedPenWidth, 4 * _padPressedPenWidth);
 
             canvas.DrawRect(boundRectangle, _panelBrush);
@@ -545,12 +545,12 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
 
         private void DrawControllerToggle(SKCanvas canvas, SKPoint point)
         {
-            using var paint = new SKPaint(_labelsTextFont)
+            using SKPaint paint = new SKPaint(_labelsTextFont)
             {
                 IsAntialias = true,
                 Color = _textNormalColor
             };
-            var labelRectangle = MeasureString(ControllerToggleText, paint);
+            SKRect labelRectangle = MeasureString(ControllerToggleText, paint);
 
             // Use relative positions so we can center the entire drawing later.
 
@@ -574,8 +574,8 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
             keyX += originX;
             keyY += originY;
 
-            var labelPosition = new SKPoint(labelPositionX + originX, labelPositionY + originY);
-            var overlayPosition = new SKPoint((int)keyX, (int)keyY);
+            SKPoint labelPosition = new SKPoint(labelPositionX + originX, labelPositionY + originY);
+            SKPoint overlayPosition = new SKPoint((int)keyX, (int)keyY);
 
             canvas.DrawBitmap(_keyModeIcon, overlayPosition);
             canvas.DrawText(ControllerToggleText, labelPosition.X, labelPosition.Y + _labelsTextFont.Metrics.XHeight, paint);
@@ -593,7 +593,7 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
                 // Convert the pixel format used in the image to the one used in the Switch surface.
                 _surface.Flush();
 
-                var buffer = new byte[_imageInfo.BytesSize];
+                byte[] buffer = new byte[_imageInfo.BytesSize];
                 fixed (byte* bufferPtr = buffer)
                 {
                     if (!_surface.ReadPixels(_imageInfo, (nint)bufferPtr, _imageInfo.RowBytes, 0, 0))

src/Ryujinx.HLE/HOS/Applets/SoftwareKeyboard/TimedAction.cs

@@ -79,11 +79,11 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
         public void Reset(Action<float> action, int totalMilliseconds, int sleepMilliseconds)
         {
             // Create a dedicated cancel token for each task.
-            var cancelled = new TRef<bool>(false);
+            TRef<bool> cancelled = new TRef<bool>(false);
 
             Reset(new Thread(() =>
             {
-                var substepData = new SleepSubstepData(sleepMilliseconds);
+                SleepSubstepData substepData = new SleepSubstepData(sleepMilliseconds);
 
                 int totalCount = totalMilliseconds / sleepMilliseconds;
                 int totalRemainder = totalMilliseconds - totalCount * sleepMilliseconds;
@@ -126,11 +126,11 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
         public void Reset(Action action, int sleepMilliseconds)
         {
             // Create a dedicated cancel token for each task.
-            var cancelled = new TRef<bool>(false);
+            TRef<bool> cancelled = new TRef<bool>(false);
 
             Reset(new Thread(() =>
             {
-                var substepData = new SleepSubstepData(sleepMilliseconds);
+                SleepSubstepData substepData = new SleepSubstepData(sleepMilliseconds);
 
                 while (!Volatile.Read(ref cancelled.Value))
                 {
@@ -147,7 +147,7 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
         public void Reset(Action action)
         {
             // Create a dedicated cancel token for each task.
-            var cancelled = new TRef<bool>(false);
+            TRef<bool> cancelled = new TRef<bool>(false);
 
             Reset(new Thread(() =>
             {

src/Ryujinx.HLE/HOS/ArmProcessContextFactory.cs

@@ -51,8 +51,8 @@ namespace Ryujinx.HLE.HOS
 
             if (OperatingSystem.IsMacOS() && isArm64Host && for64Bit && context.Device.Configuration.UseHypervisor)
             {
-                var cpuEngine = new HvEngine(_tickSource);
-                var memoryManager = new HvMemoryManager(context.Memory, addressSpaceSize, invalidAccessHandler);
+                HvEngine cpuEngine = new HvEngine(_tickSource);
+                HvMemoryManager memoryManager = new HvMemoryManager(context.Memory, addressSpaceSize, invalidAccessHandler);
                 processContext = new ArmProcessContext<HvMemoryManager>(pid, cpuEngine, _gpu, memoryManager, addressSpaceSize, for64Bit);
             }
             else
@@ -86,7 +86,7 @@ namespace Ryujinx.HLE.HOS
                 switch (mode)
                 {
                     case MemoryManagerMode.SoftwarePageTable:
-                        var memoryManager = new MemoryManager(context.Memory, addressSpaceSize, invalidAccessHandler);
+                        MemoryManager memoryManager = new MemoryManager(context.Memory, addressSpaceSize, invalidAccessHandler);
                         processContext = new ArmProcessContext<MemoryManager>(pid, cpuEngine, _gpu, memoryManager, addressSpaceSize, for64Bit);
                         break;
 
@@ -94,7 +94,7 @@ namespace Ryujinx.HLE.HOS
                     case MemoryManagerMode.HostMappedUnsafe:
                         if (addressSpace == null)
                         {
-                            var memoryManagerHostTracked = new MemoryManagerHostTracked(context.Memory, addressSpaceSize, mode == MemoryManagerMode.HostMappedUnsafe, invalidAccessHandler);
+                            MemoryManagerHostTracked memoryManagerHostTracked = new MemoryManagerHostTracked(context.Memory, addressSpaceSize, mode == MemoryManagerMode.HostMappedUnsafe, invalidAccessHandler);
                             processContext = new ArmProcessContext<MemoryManagerHostTracked>(pid, cpuEngine, _gpu, memoryManagerHostTracked, addressSpaceSize, for64Bit);
                         }
                         else
@@ -104,7 +104,7 @@ namespace Ryujinx.HLE.HOS
                                 Logger.Warning?.Print(LogClass.Emulation, $"Allocated address space (0x{addressSpace.AddressSpaceSize:X}) is smaller than guest application requirements (0x{addressSpaceSize:X})");
                             }
 
-                            var memoryManagerHostMapped = new MemoryManagerHostMapped(addressSpace, mode == MemoryManagerMode.HostMappedUnsafe, invalidAccessHandler);
+                            MemoryManagerHostMapped memoryManagerHostMapped = new MemoryManagerHostMapped(addressSpace, mode == MemoryManagerMode.HostMappedUnsafe, invalidAccessHandler);
                             processContext = new ArmProcessContext<MemoryManagerHostMapped>(pid, cpuEngine, _gpu, memoryManagerHostMapped, addressSpace.AddressSpaceSize, for64Bit);
                         }
                         break;

src/Ryujinx.HLE/HOS/Diagnostics/Demangler/Demangler.cs

@@ -32,7 +32,7 @@ namespace Ryujinx.HLE.HOS.Diagnostics.Demangler
 
         private bool ConsumeIf(string toConsume)
         {
-            var mangledPart = Mangled.AsSpan(_position);
+            ReadOnlySpan<char> mangledPart = Mangled.AsSpan(_position);
 
             if (mangledPart.StartsWith(toConsume.AsSpan()))
             {

src/Ryujinx.HLE/HOS/Horizon.cs

@@ -154,11 +154,11 @@ namespace Ryujinx.HLE.HOS
             timePageList.AddRange(timePa, TimeSize / KPageTableBase.PageSize);
             appletCaptureBufferPageList.AddRange(appletCaptureBufferPa, AppletCaptureBufferSize / KPageTableBase.PageSize);
 
-            var hidStorage = new SharedMemoryStorage(KernelContext, hidPageList);
-            var fontStorage = new SharedMemoryStorage(KernelContext, fontPageList);
-            var iirsStorage = new SharedMemoryStorage(KernelContext, iirsPageList);
-            var timeStorage = new SharedMemoryStorage(KernelContext, timePageList);
-            var appletCaptureBufferStorage = new SharedMemoryStorage(KernelContext, appletCaptureBufferPageList);
+            SharedMemoryStorage hidStorage = new SharedMemoryStorage(KernelContext, hidPageList);
+            SharedMemoryStorage fontStorage = new SharedMemoryStorage(KernelContext, fontPageList);
+            SharedMemoryStorage iirsStorage = new SharedMemoryStorage(KernelContext, iirsPageList);
+            SharedMemoryStorage timeStorage = new SharedMemoryStorage(KernelContext, timePageList);
+            SharedMemoryStorage appletCaptureBufferStorage = new SharedMemoryStorage(KernelContext, appletCaptureBufferPageList);
 
             HidStorage = hidStorage;
 
@@ -265,7 +265,7 @@ namespace Ryujinx.HLE.HOS
             HorizonFsClient fsClient = new(this);
 
             ServiceTable = new ServiceTable();
-            var services = ServiceTable.GetServices(new HorizonOptions
+            IEnumerable<ServiceEntry> services = ServiceTable.GetServices(new HorizonOptions
                 (Device.Configuration.IgnoreMissingServices,
                 LibHacHorizonManager.BcatClient,
                 fsClient,
@@ -273,7 +273,7 @@ namespace Ryujinx.HLE.HOS
                 Device.AudioDeviceDriver,
                 TickSource));
 
-            foreach (var service in services)
+            foreach (ServiceEntry service in services)
             {
                 const ProcessCreationFlags Flags =
                     ProcessCreationFlags.EnableAslr |
@@ -304,7 +304,7 @@ namespace Ryujinx.HLE.HOS
 
         public bool LoadKip(string kipPath)
         {
-            using var kipFile = new SharedRef<IStorage>(new LocalStorage(kipPath, FileAccess.Read));
+            using SharedRef<IStorage> kipFile = new SharedRef<IStorage>(new LocalStorage(kipPath, FileAccess.Read));
 
             return ProcessLoaderHelper.LoadKip(KernelContext, new KipExecutable(in kipFile));
         }

src/Ryujinx.HLE/HOS/HorizonFsClient.cs

@@ -55,8 +55,8 @@ namespace Ryujinx.HLE.HOS
 
                         Nca nca = new(_system.KeySet, ncaStorage);
 
-                        using var ncaFileSystem = nca.OpenFileSystem(NcaSectionType.Data, _system.FsIntegrityCheckLevel);
-                        using var ncaFsRef = new UniqueRef<IFileSystem>(ncaFileSystem);
+                        using IFileSystem ncaFileSystem = nca.OpenFileSystem(NcaSectionType.Data, _system.FsIntegrityCheckLevel);
+                        using UniqueRef<IFileSystem> ncaFsRef = new UniqueRef<IFileSystem>(ncaFileSystem);
 
                         Result result = _fsClient.Register(mountName.ToU8Span(), ref ncaFsRef.Ref).ToHorizonResult();
                         if (result.IsFailure)
@@ -86,7 +86,7 @@ namespace Ryujinx.HLE.HOS
 
         public Result OpenFile(out FileHandle handle, string path, OpenMode openMode)
         {
-            var result = _fsClient.OpenFile(out var libhacHandle, path.ToU8Span(), (LibHac.Fs.OpenMode)openMode);
+            LibHac.Result result = _fsClient.OpenFile(out LibHac.Fs.FileHandle libhacHandle, path.ToU8Span(), (LibHac.Fs.OpenMode)openMode);
             handle = new(libhacHandle);
 
             return result.ToHorizonResult();

src/Ryujinx.HLE/HOS/Kernel/Memory/KMemoryManager.cs

@@ -16,7 +16,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
         {
             for (int i = 0; i < MemoryRegions.Length; i++)
             {
-                var region = MemoryRegions[i];
+                KMemoryRegionManager region = MemoryRegions[i];
 
                 if (address >= region.Address && address < region.EndAddr)
                 {
@@ -41,7 +41,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
         {
             while (pagesCount != 0)
             {
-                var region = GetMemoryRegion(address);
+                KMemoryRegionManager region = GetMemoryRegion(address);
 
                 ulong countToProcess = Math.Min(pagesCount, region.GetPageOffsetFromEnd(address));
 

src/Ryujinx.HLE/HOS/Kernel/Memory/KMemoryRegionManager.cs

@@ -40,7 +40,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
 
                 if (result == Result.Success)
                 {
-                    foreach (var node in pageList)
+                    foreach (KPageNode node in pageList)
                     {
                         IncrementPagesReferenceCount(node.Address, node.PagesCount);
                     }

src/Ryujinx.HLE/HOS/Kernel/Memory/KPageBitmap.cs

@@ -162,7 +162,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
         public bool ClearRange(ulong offset, int count)
         {
             int depth = HighestDepthIndex;
-            var bits = _bitStorages[depth];
+            ArraySegment<ulong> bits = _bitStorages[depth];
 
             int bitInd = (int)(offset / UInt64BitSize);
 

src/Ryujinx.HLE/HOS/Kernel/Memory/KPageHeap.cs

@@ -105,7 +105,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
             _blocksCount = blockShifts.Length;
             _blocks = new Block[_memoryBlockPageShifts.Length];
 
-            var currBitmapStorage = new ArraySegment<ulong>(new ulong[CalculateManagementOverheadSize(size, blockShifts)]);
+            ArraySegment<ulong> currBitmapStorage = new ArraySegment<ulong>(new ulong[CalculateManagementOverheadSize(size, blockShifts)]);
 
             for (int i = 0; i < blockShifts.Length; i++)
             {

src/Ryujinx.HLE/HOS/Kernel/Memory/KPageList.cs

@@ -70,7 +70,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
 
         public void IncrementPagesReferenceCount(KMemoryManager manager)
         {
-            foreach (var node in this)
+            foreach (KPageNode node in this)
             {
                 manager.IncrementPagesReferenceCount(node.Address, node.PagesCount);
             }
@@ -78,7 +78,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
 
         public void DecrementPagesReferenceCount(KMemoryManager manager)
         {
-            foreach (var node in this)
+            foreach (KPageNode node in this)
             {
                 manager.DecrementPagesReferenceCount(node.Address, node.PagesCount);
             }

src/Ryujinx.HLE/HOS/Kernel/Memory/KPageTable.cs

@@ -28,8 +28,8 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
         /// <inheritdoc/>
         protected override void GetPhysicalRegions(ulong va, ulong size, KPageList pageList)
         {
-            var ranges = _cpuMemory.GetPhysicalRegions(va, size);
-            foreach (var range in ranges)
+            IEnumerable<MemoryRange> ranges = _cpuMemory.GetPhysicalRegions(va, size);
+            foreach (MemoryRange range in ranges)
             {
                 pageList.AddRange(range.Address + DramMemoryMap.DramBase, range.Size / PageSize);
             }
@@ -143,11 +143,11 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
             bool shouldFillPages,
             byte fillValue)
         {
-            using var scopedPageList = new KScopedPageList(Context.MemoryManager, pageList);
+            using KScopedPageList scopedPageList = new KScopedPageList(Context.MemoryManager, pageList);
 
             ulong currentVa = address;
 
-            foreach (var pageNode in pageList)
+            foreach (KPageNode pageNode in pageList)
             {
                 ulong addr = pageNode.Address - DramMemoryMap.DramBase;
                 ulong size = pageNode.PagesCount * PageSize;
@@ -188,16 +188,16 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                 }
             }
 
-            using var scopedPageList = new KScopedPageList(Context.MemoryManager, pageList);
+            using KScopedPageList scopedPageList = new KScopedPageList(Context.MemoryManager, pageList);
 
-            foreach (var pageNode in pageList)
+            foreach (KPageNode pageNode in pageList)
             {
                 Context.CommitMemory(pageNode.Address - DramMemoryMap.DramBase, pageNode.PagesCount * PageSize);
             }
 
             ulong offset = 0;
 
-            foreach (var region in regions)
+            foreach (HostMemoryRange region in regions)
             {
                 _cpuMemory.MapForeign(va + offset, region.Address, region.Size);
 
@@ -214,9 +214,9 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
         {
             KPageList pagesToClose = new();
 
-            var regions = _cpuMemory.GetPhysicalRegions(address, pagesCount * PageSize);
+            IEnumerable<MemoryRange> regions = _cpuMemory.GetPhysicalRegions(address, pagesCount * PageSize);
 
-            foreach (var region in regions)
+            foreach (MemoryRange region in regions)
             {
                 ulong pa = region.Address + DramMemoryMap.DramBase;
                 if (DramMemoryMap.IsHeapPhysicalAddress(pa))

src/Ryujinx.HLE/HOS/Kernel/Memory/KPageTableBase.cs

@@ -617,7 +617,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                 return result;
             }
 
-            using var _ = new OnScopeExit(() => pageList.DecrementPagesReferenceCount(Context.MemoryManager));
+            using OnScopeExit _ = new OnScopeExit(() => pageList.DecrementPagesReferenceCount(Context.MemoryManager));
 
             return MapPages(address, pageList, permission, MemoryMapFlags.Private);
         }
@@ -769,7 +769,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
 
                     Result result = region.AllocatePages(out KPageList pageList, pagesCount);
 
-                    using var _ = new OnScopeExit(() => pageList.DecrementPagesReferenceCount(Context.MemoryManager));
+                    using OnScopeExit _ = new OnScopeExit(() => pageList.DecrementPagesReferenceCount(Context.MemoryManager));
 
                     void CleanUpForError()
                     {
@@ -1341,7 +1341,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
 
                 Result result = region.AllocatePages(out KPageList pageList, remainingPages);
 
-                using var _ = new OnScopeExit(() => pageList.DecrementPagesReferenceCount(Context.MemoryManager));
+                using OnScopeExit _ = new OnScopeExit(() => pageList.DecrementPagesReferenceCount(Context.MemoryManager));
 
                 void CleanUpForError()
                 {
@@ -1867,7 +1867,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
             ulong dstLastPagePa = 0;
             ulong currentVa = va;
 
-            using var _ = new OnScopeExit(() =>
+            using OnScopeExit _ = new OnScopeExit(() =>
             {
                 if (dstFirstPagePa != 0)
                 {
@@ -1928,7 +1928,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                     Context.Memory.Fill(GetDramAddressFromPa(dstFirstPagePa), unusedSizeBefore, (byte)_ipcFillValue);
 
                     ulong copySize = addressRounded <= endAddr ? addressRounded - address : size;
-                    var data = srcPageTable.GetReadOnlySequence(addressTruncated + unusedSizeBefore, (int)copySize);
+                    ReadOnlySequence<byte> data = srcPageTable.GetReadOnlySequence(addressTruncated + unusedSizeBefore, (int)copySize);
 
                     ((IWritableBlock)Context.Memory).Write(GetDramAddressFromPa(dstFirstPagePa + unusedSizeBefore), data);
 
@@ -1994,7 +1994,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
                 if (send)
                 {
                     ulong copySize = endAddr - endAddrTruncated;
-                    var data = srcPageTable.GetReadOnlySequence(endAddrTruncated, (int)copySize);
+                    ReadOnlySequence<byte> data = srcPageTable.GetReadOnlySequence(endAddrTruncated, (int)copySize);
 
                     ((IWritableBlock)Context.Memory).Write(GetDramAddressFromPa(dstLastPagePa), data);
 

src/Ryujinx.HLE/HOS/Kernel/Process/HleProcessDebugger.cs

@@ -1,3 +1,4 @@
+using Ryujinx.Cpu;
 using Ryujinx.HLE.HOS.Diagnostics.Demangler;
 using Ryujinx.HLE.HOS.Kernel.Memory;
 using Ryujinx.HLE.HOS.Kernel.Threading;
@@ -47,7 +48,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Process
         {
             EnsureLoaded();
 
-            var context = thread.Context;
+            IExecutionContext context = thread.Context;
 
             StringBuilder trace = new();
 
@@ -109,13 +110,13 @@ namespace Ryujinx.HLE.HOS.Kernel.Process
         {
             EnsureLoaded();
 
-            var context = thread.Context;
+            IExecutionContext context = thread.Context;
 
             StringBuilder sb = new();
 
             string GetReg(int x)
             {
-                var v = x == 32 ? context.Pc : context.GetX(x);
+                ulong v = x == 32 ? context.Pc : context.GetX(x);
                 if (!AnalyzePointer(out PointerInfo info, v, thread))
                 {
                     return $"0x{v:x16}";
@@ -251,7 +252,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Process
             info = default;
 
             ulong sp = thread.Context.GetX(31);
-            var memoryInfo = _owner.MemoryManager.QueryMemory(address);
+            KMemoryInfo memoryInfo = _owner.MemoryManager.QueryMemory(address);
             MemoryState memoryState = memoryInfo.State;
 
             if (!memoryState.HasFlag(MemoryState.Stack)) // Is this pointer within the stack?

src/Ryujinx.HLE/HOS/Kernel/SupervisorCall/Syscall.cs

@@ -105,7 +105,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
             KProcess process = new(_context);
 
-            using var _ = new OnScopeExit(process.DecrementReferenceCount);
+            using OnScopeExit _ = new OnScopeExit(process.DecrementReferenceCount);
 
             KResourceLimit resourceLimit;
 
@@ -1425,7 +1425,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
             KCodeMemory codeMemory = new(_context);
 
-            using var _ = new OnScopeExit(codeMemory.DecrementReferenceCount);
+            using OnScopeExit _ = new OnScopeExit(codeMemory.DecrementReferenceCount);
 
             KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
@@ -2854,7 +2854,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
             KThread currentThread = KernelStatic.GetCurrentThread();
 
-            var syncObjs = new Span<KSynchronizationObject>(currentThread.WaitSyncObjects)[..handles.Length];
+            Span<KSynchronizationObject> syncObjs = new Span<KSynchronizationObject>(currentThread.WaitSyncObjects)[..handles.Length];
 
             if (handles.Length != 0)
             {

src/Ryujinx.HLE/HOS/Kernel/Threading/KAddressArbiter.cs

@@ -562,8 +562,8 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
             Action<KThread> removeCallback,
             Func<KThread, bool> predicate)
         {
-            var candidates = threads.Where(predicate).OrderBy(x => x.DynamicPriority);
-            var toSignal = (count > 0 ? candidates.Take(count) : candidates).ToArray();
+            IOrderedEnumerable<KThread> candidates = threads.Where(predicate).OrderBy(x => x.DynamicPriority);
+            KThread[] toSignal = (count > 0 ? candidates.Take(count) : candidates).ToArray();
 
             foreach (KThread thread in toSignal)
             {

src/Ryujinx.HLE/HOS/Kernel/Threading/KPriorityQueue.cs

@@ -127,7 +127,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
         public KThread ScheduledThreadsElementAtOrDefault(int core, int index)
         {
             int currentIndex = 0;
-            foreach (var scheduledThread in ScheduledThreads(core))
+            foreach (KThread scheduledThread in ScheduledThreads(core))
             {
                 if (currentIndex == index)
                 {
@@ -144,7 +144,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
 
         public KThread ScheduledThreadsWithDynamicPriorityFirstOrDefault(int core, int dynamicPriority)
         {
-            foreach (var scheduledThread in ScheduledThreads(core))
+            foreach (KThread scheduledThread in ScheduledThreads(core))
             {
                 if (scheduledThread.DynamicPriority == dynamicPriority)
                 {

src/Ryujinx.HLE/HOS/Kernel/Threading/KThread.cs

@@ -1232,7 +1232,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
         {
             if (_schedulerWaitEvent == null)
             {
-                var schedulerWaitEvent = new ManualResetEvent(false);
+                ManualResetEvent schedulerWaitEvent = new ManualResetEvent(false);
 
                 if (Interlocked.Exchange(ref _schedulerWaitEvent, schedulerWaitEvent) == null)
                 {

src/Ryujinx.HLE/HOS/LibHacHorizonManager.cs

@@ -54,7 +54,7 @@ namespace Ryujinx.HLE.HOS
 
         public void InitializeFsServer(VirtualFileSystem virtualFileSystem)
         {
-            virtualFileSystem.InitializeFsServer(Server, out var fsClient);
+            virtualFileSystem.InitializeFsServer(Server, out HorizonClient fsClient);
 
             FsClient = fsClient;
         }

src/Ryujinx.HLE/HOS/ModLoader.cs

@@ -3,6 +3,7 @@ using LibHac.Fs;
 using LibHac.Fs.Fsa;
 using LibHac.FsSystem;
 using LibHac.Loader;
+using LibHac.Tools.Fs;
 using LibHac.Tools.FsSystem;
 using LibHac.Tools.FsSystem.RomFs;
 using Ryujinx.Common.Configuration;
@@ -143,7 +144,7 @@ namespace Ryujinx.HLE.HOS
 
         private static string EnsureBaseDirStructure(string modsBasePath)
         {
-            var modsDir = new DirectoryInfo(modsBasePath);
+            DirectoryInfo modsDir = new DirectoryInfo(modsBasePath);
 
             modsDir.CreateSubdirectory(AmsContentsDir);
             modsDir.CreateSubdirectory(AmsNsoPatchDir);
@@ -161,23 +162,23 @@ namespace Ryujinx.HLE.HOS
         {
             System.Text.StringBuilder types = new();
 
-            foreach (var modDir in dir.EnumerateDirectories())
+            foreach (DirectoryInfo modDir in dir.EnumerateDirectories())
             {
                 types.Clear();
                 Mod<DirectoryInfo> mod = new(string.Empty, null, true);
 
                 if (StrEquals(RomfsDir, modDir.Name))
                 {
-                    var modData = modMetadata.Mods.FirstOrDefault(x => modDir.FullName.Contains(x.Path));
-                    var enabled = modData?.Enabled ?? true;
+                    Mod modData = modMetadata.Mods.FirstOrDefault(x => modDir.FullName.Contains(x.Path));
+                    bool enabled = modData?.Enabled ?? true;
 
                     mods.RomfsDirs.Add(mod = new Mod<DirectoryInfo>(dir.Name, modDir, enabled));
                     types.Append('R');
                 }
                 else if (StrEquals(ExefsDir, modDir.Name))
                 {
-                    var modData = modMetadata.Mods.FirstOrDefault(x => modDir.FullName.Contains(x.Path));
-                    var enabled = modData?.Enabled ?? true;
+                    Mod modData = modMetadata.Mods.FirstOrDefault(x => modDir.FullName.Contains(x.Path));
+                    bool enabled = modData?.Enabled ?? true;
 
                     mods.ExefsDirs.Add(mod = new Mod<DirectoryInfo>(dir.Name, modDir, enabled));
                     types.Append('E');
@@ -200,8 +201,8 @@ namespace Ryujinx.HLE.HOS
 
         public static string GetApplicationDir(string modsBasePath, string applicationId)
         {
-            var contentsDir = new DirectoryInfo(Path.Combine(modsBasePath, AmsContentsDir));
-            var applicationModsPath = FindApplicationDir(contentsDir, applicationId);
+            DirectoryInfo contentsDir = new DirectoryInfo(Path.Combine(modsBasePath, AmsContentsDir));
+            DirectoryInfo applicationModsPath = FindApplicationDir(contentsDir, applicationId);
 
             if (applicationModsPath == null)
             {
@@ -243,7 +244,7 @@ namespace Ryujinx.HLE.HOS
                 return;
             }
 
-            foreach (var modDir in patchDir.EnumerateDirectories())
+            foreach (DirectoryInfo modDir in patchDir.EnumerateDirectories())
             {
                 patches.Add(new Mod<DirectoryInfo>(modDir.Name, modDir, true));
                 Logger.Info?.Print(LogClass.ModLoader, $"Found {type} patch '{modDir.Name}'");
@@ -272,11 +273,11 @@ namespace Ryujinx.HLE.HOS
                 }
             }
 
-            var fsFile = new FileInfo(Path.Combine(applicationDir.FullName, RomfsContainer));
+            FileInfo fsFile = new FileInfo(Path.Combine(applicationDir.FullName, RomfsContainer));
             if (fsFile.Exists)
             {
-                var modData = modMetadata.Mods.FirstOrDefault(x => fsFile.FullName.Contains(x.Path));
-                var enabled = modData == null || modData.Enabled;
+                Mod modData = modMetadata.Mods.FirstOrDefault(x => fsFile.FullName.Contains(x.Path));
+                bool enabled = modData == null || modData.Enabled;
 
                 mods.RomfsContainers.Add(new Mod<FileInfo>($"<{applicationDir.Name} RomFs>", fsFile, enabled));
             }
@@ -284,8 +285,8 @@ namespace Ryujinx.HLE.HOS
             fsFile = new FileInfo(Path.Combine(applicationDir.FullName, ExefsContainer));
             if (fsFile.Exists)
             {
-                var modData = modMetadata.Mods.FirstOrDefault(x => fsFile.FullName.Contains(x.Path));
-                var enabled = modData == null || modData.Enabled;
+                Mod modData = modMetadata.Mods.FirstOrDefault(x => fsFile.FullName.Contains(x.Path));
+                bool enabled = modData == null || modData.Enabled;
 
                 mods.ExefsContainers.Add(new Mod<FileInfo>($"<{applicationDir.Name} ExeFs>", fsFile, enabled));
             }
@@ -302,7 +303,7 @@ namespace Ryujinx.HLE.HOS
 
             Logger.Info?.Print(LogClass.ModLoader, $"Searching mods for {((applicationId & 0x1000) != 0 ? "DLC" : "Application")} {applicationId:X16} in \"{contentsDir.FullName}\"");
 
-            var applicationDir = FindApplicationDir(contentsDir, $"{applicationId:x16}");
+            DirectoryInfo applicationDir = FindApplicationDir(contentsDir, $"{applicationId:x16}");
 
             if (applicationDir != null)
             {
@@ -429,9 +430,9 @@ namespace Ryujinx.HLE.HOS
                 return false;
             }
 
-            foreach (var path in searchDirPaths)
+            foreach (string path in searchDirPaths)
             {
-                var searchDir = new DirectoryInfo(path);
+                DirectoryInfo searchDir = new DirectoryInfo(path);
                 if (!searchDir.Exists)
                 {
                     Logger.Warning?.Print(LogClass.ModLoader, $"Mod Search Dir '{searchDir.FullName}' doesn't exist");
@@ -440,7 +441,7 @@ namespace Ryujinx.HLE.HOS
 
                 if (!TryQuery(searchDir, patches, modCaches))
                 {
-                    foreach (var subdir in searchDir.EnumerateDirectories())
+                    foreach (DirectoryInfo subdir in searchDir.EnumerateDirectories())
                     {
                         TryQuery(subdir, patches, modCaches);
                     }
@@ -469,14 +470,14 @@ namespace Ryujinx.HLE.HOS
                 return baseStorage;
             }
 
-            var fileSet = new HashSet<string>();
-            var builder = new RomFsBuilder();
+            HashSet<string> fileSet = new HashSet<string>();
+            RomFsBuilder builder = new RomFsBuilder();
             int count = 0;
 
             Logger.Info?.Print(LogClass.ModLoader, $"Applying RomFS mods for Application {applicationId:X16}");
 
             // Prioritize loose files first
-            foreach (var mod in mods.RomfsDirs)
+            foreach (Mod<DirectoryInfo> mod in mods.RomfsDirs)
             {
                 if (!mod.Enabled)
                 {
@@ -491,7 +492,7 @@ namespace Ryujinx.HLE.HOS
             }
 
             // Then files inside images
-            foreach (var mod in mods.RomfsContainers)
+            foreach (Mod<FileInfo> mod in mods.RomfsContainers)
             {
                 if (!mod.Enabled)
                 {
@@ -516,12 +517,12 @@ namespace Ryujinx.HLE.HOS
             Logger.Info?.Print(LogClass.ModLoader, $"Replaced {fileSet.Count} file(s) over {count} mod(s). Processing base storage...");
 
             // And finally, the base romfs
-            var baseRom = new RomFsFileSystem(baseStorage);
-            foreach (var entry in baseRom.EnumerateEntries()
+            RomFsFileSystem baseRom = new RomFsFileSystem(baseStorage);
+            foreach (DirectoryEntryEx entry in baseRom.EnumerateEntries()
                                          .Where(f => f.Type == DirectoryEntryType.File && !fileSet.Contains(f.FullPath))
                                          .OrderBy(f => f.FullPath, StringComparer.Ordinal))
             {
-                using var file = new UniqueRef<IFile>();
+                using UniqueRef<IFile> file = new UniqueRef<IFile>();
 
                 baseRom.OpenFile(ref file.Ref, entry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
                 builder.AddFile(entry.FullPath, file.Release());
@@ -536,12 +537,12 @@ namespace Ryujinx.HLE.HOS
 
         private static void AddFiles(IFileSystem fs, string modName, string rootPath, ISet<string> fileSet, RomFsBuilder builder)
         {
-            foreach (var entry in fs.EnumerateEntries()
+            foreach (DirectoryEntryEx entry in fs.EnumerateEntries()
                                     .AsParallel()
                                     .Where(f => f.Type == DirectoryEntryType.File)
                                     .OrderBy(f => f.FullPath, StringComparer.Ordinal))
             {
-                var file = new LazyFile(entry.FullPath, rootPath, fs);
+                LazyFile file = new LazyFile(entry.FullPath, rootPath, fs);
 
                 if (fileSet.Add(entry.FullPath))
                 {
@@ -568,7 +569,7 @@ namespace Ryujinx.HLE.HOS
 
             Logger.Info?.Print(LogClass.ModLoader, "Using replacement ExeFS partition");
 
-            var pfs = new PartitionFileSystem();
+            PartitionFileSystem pfs = new PartitionFileSystem();
             pfs.Initialize(mods.ExefsContainers[0].Path.OpenRead().AsStorage()).ThrowIfFailure();
             exefs = pfs;
 
@@ -602,9 +603,9 @@ namespace Ryujinx.HLE.HOS
                 throw new ArgumentOutOfRangeException(nameof(nsos), nsos.Length, "NSO Count is incorrect");
             }
 
-            var exeMods = mods.ExefsDirs;
+            List<Mod<DirectoryInfo>> exeMods = mods.ExefsDirs;
 
-            foreach (var mod in exeMods)
+            foreach (Mod<DirectoryInfo> mod in exeMods)
             {
                 if (!mod.Enabled)
                 {
@@ -613,7 +614,7 @@ namespace Ryujinx.HLE.HOS
 
                 for (int i = 0; i < ProcessConst.ExeFsPrefixes.Length; ++i)
                 {
-                    var nsoName = ProcessConst.ExeFsPrefixes[i];
+                    string nsoName = ProcessConst.ExeFsPrefixes[i];
 
                     FileInfo nsoFile = new(Path.Combine(mod.Path.FullName, nsoName));
                     if (nsoFile.Exists)
@@ -665,7 +666,7 @@ namespace Ryujinx.HLE.HOS
 
         internal void ApplyNroPatches(NroExecutable nro)
         {
-            var nroPatches = _patches.NroPatches;
+            List<Mod<DirectoryInfo>> nroPatches = _patches.NroPatches;
 
             if (nroPatches.Count == 0)
             {
@@ -707,11 +708,11 @@ namespace Ryujinx.HLE.HOS
                 return;
             }
 
-            var cheats = mods.Cheats;
-            var processExes = tamperInfo.BuildIds.Zip(tamperInfo.CodeAddresses, (k, v) => new { k, v })
+            List<Cheat> cheats = mods.Cheats;
+            Dictionary<string, ulong> processExes = tamperInfo.BuildIds.Zip(tamperInfo.CodeAddresses, (k, v) => new { k, v })
                 .ToDictionary(x => x.k[..Math.Min(Cheat.CheatIdSize, x.k.Length)], x => x.v);
 
-            foreach (var cheat in cheats)
+            foreach (Cheat cheat in cheats)
             {
                 string cheatId = Path.GetFileNameWithoutExtension(cheat.Path.Name).ToUpper();
 
@@ -732,7 +733,7 @@ namespace Ryujinx.HLE.HOS
 
         internal static void EnableCheats(ulong applicationId, TamperMachine tamperMachine)
         {
-            var contentDirectory = FindApplicationDir(new DirectoryInfo(Path.Combine(GetModsBasePath(), AmsContentsDir)), $"{applicationId:x16}");
+            DirectoryInfo contentDirectory = FindApplicationDir(new DirectoryInfo(Path.Combine(GetModsBasePath(), AmsContentsDir)), $"{applicationId:x16}");
             string enabledCheatsPath = Path.Combine(contentDirectory.FullName, CheatDir, "enabled.txt");
 
             if (File.Exists(enabledCheatsPath))
@@ -752,11 +753,11 @@ namespace Ryujinx.HLE.HOS
                 patches[i] = new MemPatch();
             }
 
-            var buildIds = new List<string>(programs.Length);
+            List<string> buildIds = new List<string>(programs.Length);
 
             foreach (IExecutable p in programs)
             {
-                var buildId = p switch
+                string buildId = p switch
                 {
                     NsoExecutable nso => Convert.ToHexString(nso.BuildId.ItemsRo.ToArray()).TrimEnd('0'),
                     NroExecutable nro => Convert.ToHexString(nro.Header.BuildId).TrimEnd('0'),
@@ -768,15 +769,15 @@ namespace Ryujinx.HLE.HOS
             int GetIndex(string buildId) => buildIds.FindIndex(id => id == buildId); // O(n) but list is small
 
             // Collect patches
-            foreach (var mod in mods)
+            foreach (Mod<DirectoryInfo> mod in mods)
             {
                 if (!mod.Enabled)
                 {
                     continue;
                 }
 
-                var patchDir = mod.Path;
-                foreach (var patchFile in patchDir.EnumerateFiles())
+                DirectoryInfo patchDir = mod.Path;
+                foreach (FileInfo patchFile in patchDir.EnumerateFiles())
                 {
                     if (StrEquals(".ips", patchFile.Extension)) // IPS|IPS32
                     {
@@ -791,18 +792,18 @@ namespace Ryujinx.HLE.HOS
 
                         Logger.Info?.Print(LogClass.ModLoader, $"Matching IPS patch '{patchFile.Name}' in '{mod.Name}' bid={buildId}");
 
-                        using var fs = patchFile.OpenRead();
-                        using var reader = new BinaryReader(fs);
+                        using FileStream fs = patchFile.OpenRead();
+                        using BinaryReader reader = new BinaryReader(fs);
 
-                        var patcher = new IpsPatcher(reader);
+                        IpsPatcher patcher = new IpsPatcher(reader);
                         patcher.AddPatches(patches[index]);
                     }
                     else if (StrEquals(".pchtxt", patchFile.Extension)) // IPSwitch
                     {
-                        using var fs = patchFile.OpenRead();
-                        using var reader = new StreamReader(fs);
+                        using FileStream fs = patchFile.OpenRead();
+                        using StreamReader reader = new StreamReader(fs);
 
-                        var patcher = new IPSwitchPatcher(reader);
+                        IPSwitchPatcher patcher = new IPSwitchPatcher(reader);
 
                         int index = GetIndex(patcher.BuildId);
                         if (index == -1)

src/Ryujinx.HLE/HOS/Services/Account/Acc/AccountManager.cs

@@ -191,10 +191,10 @@ namespace Ryujinx.HLE.HOS.Services.Account.Acc
 
         private void DeleteSaveData(UserId userId)
         {
-            var saveDataFilter = SaveDataFilter.Make(programId: default, saveType: default,
+            SaveDataFilter saveDataFilter = SaveDataFilter.Make(programId: default, saveType: default,
                 new LibHac.Fs.UserId((ulong)userId.High, (ulong)userId.Low), saveDataId: default, index: default);
 
-            using var saveDataIterator = new UniqueRef<SaveDataIterator>();
+            using UniqueRef<SaveDataIterator> saveDataIterator = new UniqueRef<SaveDataIterator>();
 
             _horizonClient.Fs.OpenSaveDataIterator(ref saveDataIterator.Ref, SaveDataSpaceId.User, in saveDataFilter).ThrowIfFailure();
 

src/Ryujinx.HLE/HOS/Services/Account/Acc/AccountSaveDataManager.cs

@@ -29,7 +29,7 @@ namespace Ryujinx.HLE.HOS.Services.Account.Acc
                 {
                     ProfilesJson profilesJson = JsonHelper.DeserializeFromFile(_profilesJsonPath, _serializerContext.ProfilesJson);
 
-                    foreach (var profile in profilesJson.Profiles)
+                    foreach (UserProfileJson profile in profilesJson.Profiles)
                     {
                         UserProfile addedProfile = new(new UserId(profile.UserId), profile.Name, profile.Image, profile.LastModifiedTimestamp);
 
@@ -69,7 +69,7 @@ namespace Ryujinx.HLE.HOS.Services.Account.Acc
                 LastOpened = LastOpened.ToString(),
             };
 
-            foreach (var profile in profiles)
+            foreach (KeyValuePair<string, UserProfile> profile in profiles)
             {
                 profilesJson.Profiles.Add(new UserProfileJson()
                 {

src/Ryujinx.HLE/HOS/Services/Account/Acc/AccountService/ManagerServer.cs

@@ -51,7 +51,7 @@ namespace Ryujinx.HLE.HOS.Services.Account.Acc.AccountService
             byte[] deviceAccountId = new byte[0x10];
             RandomNumberGenerator.Fill(deviceId);
 
-            var descriptor = new SecurityTokenDescriptor
+            SecurityTokenDescriptor descriptor = new SecurityTokenDescriptor
             {
                 Subject = new GenericIdentity(Convert.ToHexString(rawUserId).ToLower()),
                 SigningCredentials = credentials,

src/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ICommonStateGetter.cs

@@ -214,7 +214,7 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
 
             _vrModeEnabled = vrModeEnabled;
 
-            using var lblApi = new LblApi();
+            using LblApi lblApi = new LblApi();
 
             if (vrModeEnabled)
             {

src/Ryujinx.HLE/HOS/Services/Caps/CaptureManager.cs

@@ -118,10 +118,10 @@ namespace Ryujinx.HLE.HOS.Services.Caps
                 }
 
                 // NOTE: The saved JPEG file doesn't have the limitation in the extra EXIF data.
-                using var bitmap = new SKBitmap(new SKImageInfo(1280, 720, SKColorType.Rgba8888));
+                using SKBitmap bitmap = new SKBitmap(new SKImageInfo(1280, 720, SKColorType.Rgba8888));
                 Marshal.Copy(screenshotData, 0, bitmap.GetPixels(), screenshotData.Length);
-                using var data = bitmap.Encode(SKEncodedImageFormat.Jpeg, 80);
-                using var file = File.OpenWrite(filePath);
+                using SKData data = bitmap.Encode(SKEncodedImageFormat.Jpeg, 80);
+                using FileStream file = File.OpenWrite(filePath);
                 data.SaveTo(file);
 
                 return ResultCode.Success;

src/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/FileSystemProxyHelper.cs

@@ -26,7 +26,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
             try
             {
                 LocalStorage storage = new(pfsPath, FileAccess.Read, FileMode.Open);
-                var pfs = new PartitionFileSystem();
+                PartitionFileSystem pfs = new PartitionFileSystem();
                 using SharedRef<LibHac.Fs.Fsa.IFileSystem> nsp = new(pfs);
                 pfs.Initialize(storage).ThrowIfFailure();
 
@@ -58,7 +58,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
                 }
 
                 LibHac.Fs.Fsa.IFileSystem fileSystem = nca.OpenFileSystem(NcaSectionType.Data, context.Device.System.FsIntegrityCheckLevel);
-                using var sharedFs = new SharedRef<LibHac.Fs.Fsa.IFileSystem>(fileSystem);
+                using SharedRef<LibHac.Fs.Fsa.IFileSystem> sharedFs = new SharedRef<LibHac.Fs.Fsa.IFileSystem>(fileSystem);
 
                 using SharedRef<LibHac.FsSrv.Sf.IFileSystem> adapter = FileSystemInterfaceAdapter.CreateShared(ref sharedFs.Ref, true);
 
@@ -99,7 +99,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
 
                     string filename = fullPath.Replace(archivePath.FullName, string.Empty).TrimStart('\\');
 
-                    using var ncaFile = new UniqueRef<LibHac.Fs.Fsa.IFile>();
+                    using UniqueRef<LibHac.Fs.Fsa.IFile> ncaFile = new UniqueRef<LibHac.Fs.Fsa.IFile>();
 
                     Result result = nsp.OpenFile(ref ncaFile.Ref, filename.ToU8Span(), OpenMode.Read);
                     if (result.IsFailure())
@@ -122,14 +122,14 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
         {
             foreach (DirectoryEntryEx ticketEntry in nsp.EnumerateEntries("/", "*.tik"))
             {
-                using var ticketFile = new UniqueRef<LibHac.Fs.Fsa.IFile>();
+                using UniqueRef<LibHac.Fs.Fsa.IFile> ticketFile = new UniqueRef<LibHac.Fs.Fsa.IFile>();
 
                 Result result = nsp.OpenFile(ref ticketFile.Ref, ticketEntry.FullPath.ToU8Span(), OpenMode.Read);
 
                 if (result.IsSuccess())
                 {
                     Ticket ticket = new(ticketFile.Get.AsStream());
-                    var titleKey = ticket.GetTitleKey(keySet);
+                    byte[] titleKey = ticket.GetTitleKey(keySet);
 
                     if (titleKey != null)
                     {

src/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IDirectory.cs

@@ -1,6 +1,7 @@
 using LibHac;
 using LibHac.Common;
 using LibHac.Sf;
+using Ryujinx.Memory;
 
 namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
 {
@@ -20,7 +21,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
             ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
             ulong bufferLen = context.Request.ReceiveBuff[0].Size;
 
-            using var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true);
+            using WritableRegion region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true);
             Result result = _baseDirectory.Get.Read(out long entriesRead, new OutBuffer(region.Memory.Span));
 
             context.ResponseData.Write(entriesRead);

src/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFile.cs

@@ -3,6 +3,7 @@ using LibHac.Common;
 using LibHac.Fs;
 using LibHac.Sf;
 using Ryujinx.Common;
+using Ryujinx.Memory;
 
 namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
 {
@@ -28,7 +29,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
             long offset = context.RequestData.ReadInt64();
             long size = context.RequestData.ReadInt64();
 
-            using var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true);
+            using WritableRegion region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true);
             Result result = _baseFile.Get.Read(out long bytesRead, offset, new OutBuffer(region.Memory.Span), size, readOption);
 
             context.ResponseData.Write(bytesRead);

src/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFileSystem.cs

@@ -111,7 +111,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
             uint mode = context.RequestData.ReadUInt32();
 
             ref readonly Path name = ref FileSystemProxyHelper.GetSfPath(context);
-            using var file = new SharedRef<LibHac.FsSrv.Sf.IFile>();
+            using SharedRef<LibHac.FsSrv.Sf.IFile> file = new SharedRef<LibHac.FsSrv.Sf.IFile>();
 
             Result result = _fileSystem.Get.OpenFile(ref file.Ref, in name, mode);
 
@@ -132,7 +132,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
             uint mode = context.RequestData.ReadUInt32();
 
             ref readonly Path name = ref FileSystemProxyHelper.GetSfPath(context);
-            using var dir = new SharedRef<LibHac.FsSrv.Sf.IDirectory>();
+            using SharedRef<LibHac.FsSrv.Sf.IDirectory> dir = new SharedRef<LibHac.FsSrv.Sf.IDirectory>();
 
             Result result = _fileSystem.Get.OpenDirectory(ref dir.Ref, name, mode);
 

src/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IStorage.cs

@@ -3,6 +3,7 @@ using LibHac.Common;
 using LibHac.Sf;
 using Ryujinx.Common;
 using Ryujinx.Common.Configuration;
+using Ryujinx.Memory;
 using System.Threading;
 
 namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
@@ -38,7 +39,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
                     size = bufferLen;
                 }
 
-                using var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true);
+                using WritableRegion region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true);
                 Result result = _baseStorage.Get.Read((long)offset, new OutBuffer(region.Memory.Span), (long)size);
                 
                 if (context.Device.DirtyHacks.IsEnabled(DirtyHack.Xc2MenuSoftlockFix) && IsXc2)

src/Ryujinx.HLE/HOS/Services/Fs/IFileSystemProxy.cs

@@ -3,6 +3,7 @@ using LibHac.Common;
 using LibHac.Fs;
 using LibHac.Fs.Shim;
 using LibHac.FsSrv.Impl;
+using LibHac.FsSrv.Sf;
 using LibHac.FsSystem;
 using LibHac.Ncm;
 using LibHac.Sf;
@@ -12,10 +13,12 @@ using LibHac.Tools.FsSystem.NcaUtils;
 using Ryujinx.Common;
 using Ryujinx.Common.Logging;
 using Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy;
+using Ryujinx.Memory;
 using System;
 using System.IO;
 using static Ryujinx.HLE.Utilities.StringUtils;
 using GameCardHandle = System.UInt32;
+using IFile = Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy.IFile;
 using IFileSystem = LibHac.FsSrv.Sf.IFileSystem;
 using IStorage = LibHac.FsSrv.Sf.IStorage;
 
@@ -29,7 +32,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
 
         public IFileSystemProxy(ServiceCtx context) : base(context.Device.System.FsServer)
         {
-            var applicationClient = context.Device.System.LibHacHorizonManager.ApplicationClient;
+            HorizonClient applicationClient = context.Device.System.LibHacHorizonManager.ApplicationClient;
             _baseFileSystemProxy = applicationClient.Fs.Impl.GetFileSystemProxyServiceObject();
         }
 
@@ -106,8 +109,8 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         {
             BisPartitionId bisPartitionId = (BisPartitionId)context.RequestData.ReadInt32();
 
-            ref readonly var path = ref FileSystemProxyHelper.GetFspPath(context);
-            using var fileSystem = new SharedRef<IFileSystem>();
+            ref readonly FspPath path = ref FileSystemProxyHelper.GetFspPath(context);
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenBisFileSystem(ref fileSystem.Ref, in path, bisPartitionId);
             if (result.IsFailure())
@@ -125,7 +128,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         public ResultCode OpenBisStorage(ServiceCtx context)
         {
             BisPartitionId bisPartitionId = (BisPartitionId)context.RequestData.ReadInt32();
-            using var storage = new SharedRef<IStorage>();
+            using SharedRef<IStorage> storage = new SharedRef<IStorage>();
 
             Result result = _baseFileSystemProxy.Get.OpenBisStorage(ref storage.Ref, bisPartitionId);
             if (result.IsFailure())
@@ -149,7 +152,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         // OpenSdCardFileSystem() -> object<nn::fssrv::sf::IFileSystem>
         public ResultCode OpenSdCardFileSystem(ServiceCtx context)
         {
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenSdCardFileSystem(ref fileSystem.Ref);
             if (result.IsFailure())
@@ -257,7 +260,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         {
             GameCardHandle handle = context.RequestData.ReadUInt32();
             GameCardPartitionRaw partitionId = (GameCardPartitionRaw)context.RequestData.ReadInt32();
-            using var storage = new SharedRef<IStorage>();
+            using SharedRef<IStorage> storage = new SharedRef<IStorage>();
 
             Result result = _baseFileSystemProxy.Get.OpenGameCardStorage(ref storage.Ref, handle, partitionId);
             if (result.IsFailure())
@@ -276,7 +279,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         {
             GameCardHandle handle = context.RequestData.ReadUInt32();
             GameCardPartition partitionId = (GameCardPartition)context.RequestData.ReadInt32();
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenGameCardFileSystem(ref fileSystem.Ref, handle, partitionId);
             if (result.IsFailure())
@@ -357,7 +360,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         {
             SaveDataSpaceId spaceId = (SaveDataSpaceId)context.RequestData.ReadInt64();
             SaveDataAttribute attribute = context.RequestData.ReadStruct<SaveDataAttribute>();
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenSaveDataFileSystem(ref fileSystem.Ref, spaceId, in attribute);
             if (result.IsFailure())
@@ -376,7 +379,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         {
             SaveDataSpaceId spaceId = (SaveDataSpaceId)context.RequestData.ReadInt64();
             SaveDataAttribute attribute = context.RequestData.ReadStruct<SaveDataAttribute>();
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenSaveDataFileSystemBySystemSaveDataId(ref fileSystem.Ref, spaceId, in attribute);
             if (result.IsFailure())
@@ -395,7 +398,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         {
             SaveDataSpaceId spaceId = (SaveDataSpaceId)context.RequestData.ReadInt64();
             SaveDataAttribute attribute = context.RequestData.ReadStruct<SaveDataAttribute>();
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenReadOnlySaveDataFileSystem(ref fileSystem.Ref, spaceId, in attribute);
             if (result.IsFailure())
@@ -466,7 +469,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         // OpenSaveDataInfoReader() -> object<nn::fssrv::sf::ISaveDataInfoReader>
         public ResultCode OpenSaveDataInfoReader(ServiceCtx context)
         {
-            using var infoReader = new SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader>();
+            using SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader> infoReader = new SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader>();
 
             Result result = _baseFileSystemProxy.Get.OpenSaveDataInfoReader(ref infoReader.Ref);
             if (result.IsFailure())
@@ -484,7 +487,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         public ResultCode OpenSaveDataInfoReaderBySaveDataSpaceId(ServiceCtx context)
         {
             SaveDataSpaceId spaceId = (SaveDataSpaceId)context.RequestData.ReadByte();
-            using var infoReader = new SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader>();
+            using SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader> infoReader = new SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader>();
 
             Result result = _baseFileSystemProxy.Get.OpenSaveDataInfoReaderBySaveDataSpaceId(ref infoReader.Ref, spaceId);
             if (result.IsFailure())
@@ -501,7 +504,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         // OpenSaveDataInfoReaderOnlyCacheStorage() -> object<nn::fssrv::sf::ISaveDataInfoReader>
         public ResultCode OpenSaveDataInfoReaderOnlyCacheStorage(ServiceCtx context)
         {
-            using var infoReader = new SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader>();
+            using SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader> infoReader = new SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader>();
 
             Result result = _baseFileSystemProxy.Get.OpenSaveDataInfoReaderOnlyCacheStorage(ref infoReader.Ref);
             if (result.IsFailure())
@@ -520,7 +523,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         {
             SaveDataSpaceId spaceId = (SaveDataSpaceId)context.RequestData.ReadInt64();
             ulong saveDataId = context.RequestData.ReadUInt64();
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenSaveDataInternalStorageFileSystem(ref fileSystem.Ref, spaceId, saveDataId);
             if (result.IsFailure())
@@ -567,7 +570,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
             ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
             ulong bufferLen = context.Request.ReceiveBuff[0].Size;
 
-            using var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true);
+            using WritableRegion region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true);
             Result result = _baseFileSystemProxy.Get.FindSaveDataWithFilter(out long count, new OutBuffer(region.Memory.Span), spaceId, in filter);
             if (result.IsFailure())
             {
@@ -584,7 +587,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         {
             SaveDataSpaceId spaceId = (SaveDataSpaceId)context.RequestData.ReadInt64();
             SaveDataFilter filter = context.RequestData.ReadStruct<SaveDataFilter>();
-            using var infoReader = new SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader>();
+            using SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader> infoReader = new SharedRef<LibHac.FsSrv.Sf.ISaveDataInfoReader>();
 
             Result result = _baseFileSystemProxy.Get.OpenSaveDataInfoReaderWithFilter(ref infoReader.Ref, spaceId, in filter);
             if (result.IsFailure())
@@ -661,7 +664,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
             SaveDataSpaceId spaceId = (SaveDataSpaceId)context.RequestData.ReadInt32();
             SaveDataMetaType metaType = (SaveDataMetaType)context.RequestData.ReadInt32();
             SaveDataAttribute attribute = context.RequestData.ReadStruct<SaveDataAttribute>();
-            using var file = new SharedRef<LibHac.FsSrv.Sf.IFile>();
+            using SharedRef<LibHac.FsSrv.Sf.IFile> file = new SharedRef<LibHac.FsSrv.Sf.IFile>();
 
             Result result = _baseFileSystemProxy.Get.OpenSaveDataMetaFile(ref file.Ref, spaceId, in attribute, metaType);
             if (result.IsFailure())
@@ -699,7 +702,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         public ResultCode OpenImageDirectoryFileSystem(ServiceCtx context)
         {
             ImageDirectoryId directoryId = (ImageDirectoryId)context.RequestData.ReadInt32();
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenImageDirectoryFileSystem(ref fileSystem.Ref, directoryId);
             if (result.IsFailure())
@@ -716,7 +719,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         public ResultCode OpenBaseFileSystem(ServiceCtx context)
         {
             BaseFileSystemId fileSystemId = (BaseFileSystemId)context.RequestData.ReadInt32();
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenBaseFileSystem(ref fileSystem.Ref, fileSystemId);
             if (result.IsFailure())
@@ -733,7 +736,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         public ResultCode OpenContentStorageFileSystem(ServiceCtx context)
         {
             ContentStorageId contentStorageId = (ContentStorageId)context.RequestData.ReadInt32();
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenContentStorageFileSystem(ref fileSystem.Ref, contentStorageId);
             if (result.IsFailure())
@@ -750,7 +753,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         public ResultCode OpenCloudBackupWorkStorageFileSystem(ServiceCtx context)
         {
             CloudBackupWorkStorageId storageId = (CloudBackupWorkStorageId)context.RequestData.ReadInt32();
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenCloudBackupWorkStorageFileSystem(ref fileSystem.Ref, storageId);
             if (result.IsFailure())
@@ -767,7 +770,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         public ResultCode OpenCustomStorageFileSystem(ServiceCtx context)
         {
             CustomStorageId customStorageId = (CustomStorageId)context.RequestData.ReadInt32();
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenCustomStorageFileSystem(ref fileSystem.Ref, customStorageId);
             if (result.IsFailure())
@@ -784,9 +787,9 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         // OpenDataStorageByCurrentProcess() -> object<nn::fssrv::sf::IStorage> dataStorage
         public ResultCode OpenDataStorageByCurrentProcess(ServiceCtx context)
         {
-            var storage = context.Device.FileSystem.GetRomFs(_pid).AsStorage(true);
-            using var sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
-            using var sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref));
+            LibHac.Fs.IStorage storage = context.Device.FileSystem.GetRomFs(_pid).AsStorage(true);
+            using SharedRef<LibHac.Fs.IStorage> sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
+            using SharedRef<IStorage> sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref));
 
             MakeObject(context, new FileSystemProxy.IStorage(ref sfStorage.Ref));
 
@@ -809,9 +812,9 @@ namespace Ryujinx.HLE.HOS.Services.Fs
             {
                 Logger.Info?.Print(LogClass.Loader, $"Opened AddOnContent Data TitleID={titleId:X16}");
 
-                var storage = context.Device.FileSystem.ModLoader.ApplyRomFsMods(titleId, aocStorage);
-                using var sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
-                using var sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref));
+                LibHac.Fs.IStorage storage = context.Device.FileSystem.ModLoader.ApplyRomFsMods(titleId, aocStorage);
+                using SharedRef<LibHac.Fs.IStorage> sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
+                using SharedRef<IStorage> sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref));
 
                 MakeObject(context, new FileSystemProxy.IStorage(ref sfStorage.Ref));
 
@@ -845,8 +848,8 @@ namespace Ryujinx.HLE.HOS.Services.Fs
                             LibHac.Fs.IStorage ncaStorage = new LocalStorage(ncaPath, FileAccess.Read, FileMode.Open);
                             Nca nca = new(context.Device.System.KeySet, ncaStorage);
                             LibHac.Fs.IStorage romfsStorage = nca.OpenStorage(NcaSectionType.Data, context.Device.System.FsIntegrityCheckLevel);
-                            using var sharedStorage = new SharedRef<LibHac.Fs.IStorage>(romfsStorage);
-                            using var sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref));
+                            using SharedRef<LibHac.Fs.IStorage> sharedStorage = new SharedRef<LibHac.Fs.IStorage>(romfsStorage);
+                            using SharedRef<IStorage> sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref));
 
                             MakeObject(context, new FileSystemProxy.IStorage(ref sfStorage.Ref));
                         }
@@ -875,9 +878,9 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         // OpenPatchDataStorageByCurrentProcess() -> object<nn::fssrv::sf::IStorage>
         public ResultCode OpenPatchDataStorageByCurrentProcess(ServiceCtx context)
         {
-            var storage = context.Device.FileSystem.GetRomFs(_pid).AsStorage(true);
-            using var sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
-            using var sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref));
+            LibHac.Fs.IStorage storage = context.Device.FileSystem.GetRomFs(_pid).AsStorage(true);
+            using SharedRef<LibHac.Fs.IStorage> sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
+            using SharedRef<IStorage> sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref));
 
             MakeObject(context, new FileSystemProxy.IStorage(ref sfStorage.Ref));
 
@@ -895,9 +898,9 @@ namespace Ryujinx.HLE.HOS.Services.Fs
                 throw new NotImplementedException($"Accessing storage from other programs is not supported (program index = {programIndex}).");
             }
 
-            var storage = context.Device.FileSystem.GetRomFs(_pid).AsStorage(true);
-            using var sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
-            using var sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref));
+            LibHac.Fs.IStorage storage = context.Device.FileSystem.GetRomFs(_pid).AsStorage(true);
+            using SharedRef<LibHac.Fs.IStorage> sharedStorage = new SharedRef<LibHac.Fs.IStorage>(storage);
+            using SharedRef<IStorage> sfStorage = new SharedRef<IStorage>(new StorageInterfaceAdapter(ref sharedStorage.Ref));
 
             MakeObject(context, new FileSystemProxy.IStorage(ref sfStorage.Ref));
 
@@ -908,7 +911,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         // OpenDataStorageByCurrentProcess() -> object<nn::fssrv::sf::IStorage> dataStorage
         public ResultCode OpenDeviceOperator(ServiceCtx context)
         {
-            using var deviceOperator = new SharedRef<LibHac.FsSrv.Sf.IDeviceOperator>();
+            using SharedRef<LibHac.FsSrv.Sf.IDeviceOperator> deviceOperator = new SharedRef<LibHac.FsSrv.Sf.IDeviceOperator>();
 
             Result result = _baseFileSystemProxy.Get.OpenDeviceOperator(ref deviceOperator.Ref);
             if (result.IsFailure())
@@ -1023,7 +1026,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         [CommandCmif(609)]
         public ResultCode GetRightsIdByPath(ServiceCtx context)
         {
-            ref readonly var path = ref FileSystemProxyHelper.GetFspPath(context);
+            ref readonly FspPath path = ref FileSystemProxyHelper.GetFspPath(context);
 
             Result result = _baseFileSystemProxy.Get.GetRightsIdByPath(out RightsId rightsId, in path);
             if (result.IsFailure())
@@ -1039,7 +1042,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         [CommandCmif(610)]
         public ResultCode GetRightsIdAndKeyGenerationByPath(ServiceCtx context)
         {
-            ref readonly var path = ref FileSystemProxyHelper.GetFspPath(context);
+            ref readonly FspPath path = ref FileSystemProxyHelper.GetFspPath(context);
 
             Result result = _baseFileSystemProxy.Get.GetRightsIdAndKeyGenerationByPath(out RightsId rightsId, out byte keyGeneration, in path);
             if (result.IsFailure())
@@ -1236,7 +1239,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         public ResultCode SetBisRootForHost(ServiceCtx context)
         {
             BisPartitionId partitionId = (BisPartitionId)context.RequestData.ReadInt32();
-            ref readonly var path = ref FileSystemProxyHelper.GetFspPath(context);
+            ref readonly FspPath path = ref FileSystemProxyHelper.GetFspPath(context);
 
             return (ResultCode)_baseFileSystemProxy.Get.SetBisRootForHost(partitionId, in path).Value;
         }
@@ -1253,7 +1256,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         [CommandCmif(1002)]
         public ResultCode SetSaveDataRootPath(ServiceCtx context)
         {
-            ref readonly var path = ref FileSystemProxyHelper.GetFspPath(context);
+            ref readonly FspPath path = ref FileSystemProxyHelper.GetFspPath(context);
 
             return (ResultCode)_baseFileSystemProxy.Get.SetSaveDataRootPath(in path).Value;
         }
@@ -1307,7 +1310,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         [CommandCmif(1008)]
         public ResultCode OpenRegisteredUpdatePartition(ServiceCtx context)
         {
-            using var fileSystem = new SharedRef<IFileSystem>();
+            using SharedRef<IFileSystem> fileSystem = new SharedRef<IFileSystem>();
 
             Result result = _baseFileSystemProxy.Get.OpenRegisteredUpdatePartition(ref fileSystem.Ref);
             if (result.IsFailure())
@@ -1417,7 +1420,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
         // OpenMultiCommitManager() -> object<nn::fssrv::sf::IMultiCommitManager>
         public ResultCode OpenMultiCommitManager(ServiceCtx context)
         {
-            using var commitManager = new SharedRef<LibHac.FsSrv.Sf.IMultiCommitManager>();
+            using SharedRef<LibHac.FsSrv.Sf.IMultiCommitManager> commitManager = new SharedRef<LibHac.FsSrv.Sf.IMultiCommitManager>();
 
             Result result = _baseFileSystemProxy.Get.OpenMultiCommitManager(ref commitManager.Ref);
             if (result.IsFailure())

src/Ryujinx.HLE/HOS/Services/Fs/ISaveDataInfoReader.cs

@@ -1,6 +1,7 @@
 using LibHac;
 using LibHac.Common;
 using LibHac.Sf;
+using Ryujinx.Memory;
 
 namespace Ryujinx.HLE.HOS.Services.Fs
 {
@@ -20,7 +21,7 @@ namespace Ryujinx.HLE.HOS.Services.Fs
             ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
             ulong bufferLen = context.Request.ReceiveBuff[0].Size;
 
-            using var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true);
+            using WritableRegion region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true);
             Result result = _baseReader.Get.Read(out long readCount, new OutBuffer(region.Memory.Span));
 
             context.ResponseData.Write(readCount);

src/Ryujinx.HLE/HOS/Services/Hid/Irs/IIrSensorServer.cs

@@ -81,7 +81,7 @@ namespace Ryujinx.HLE.HOS.Services.Hid.Irs
         {
             IrCameraHandle irCameraHandle = context.RequestData.ReadStruct<IrCameraHandle>();
             ulong appletResourceUserId = context.RequestData.ReadUInt64();
-            var packedMomentProcessorConfig = context.RequestData.ReadStruct<PackedMomentProcessorConfig>();
+            PackedMomentProcessorConfig packedMomentProcessorConfig = context.RequestData.ReadStruct<PackedMomentProcessorConfig>();
 
             CheckCameraHandle(irCameraHandle);
 
@@ -96,7 +96,7 @@ namespace Ryujinx.HLE.HOS.Services.Hid.Irs
         {
             IrCameraHandle irCameraHandle = context.RequestData.ReadStruct<IrCameraHandle>();
             ulong appletResourceUserId = context.RequestData.ReadUInt64();
-            var packedClusteringProcessorConfig = context.RequestData.ReadStruct<PackedClusteringProcessorConfig>();
+            PackedClusteringProcessorConfig packedClusteringProcessorConfig = context.RequestData.ReadStruct<PackedClusteringProcessorConfig>();
 
             CheckCameraHandle(irCameraHandle);
 
@@ -111,7 +111,7 @@ namespace Ryujinx.HLE.HOS.Services.Hid.Irs
         {
             IrCameraHandle irCameraHandle = context.RequestData.ReadStruct<IrCameraHandle>();
             ulong appletResourceUserId = context.RequestData.ReadUInt64();
-            var packedImageTransferProcessorConfig = context.RequestData.ReadStruct<PackedImageTransferProcessorConfig>();
+            PackedImageTransferProcessorConfig packedImageTransferProcessorConfig = context.RequestData.ReadStruct<PackedImageTransferProcessorConfig>();
 
             CheckCameraHandle(irCameraHandle);
 
@@ -157,7 +157,7 @@ namespace Ryujinx.HLE.HOS.Services.Hid.Irs
         {
             IrCameraHandle irCameraHandle = context.RequestData.ReadStruct<IrCameraHandle>();
             ulong appletResourceUserId = context.RequestData.ReadUInt64();
-            var packedTeraPluginProcessorConfig = context.RequestData.ReadStruct<PackedTeraPluginProcessorConfig>();
+            PackedTeraPluginProcessorConfig packedTeraPluginProcessorConfig = context.RequestData.ReadStruct<PackedTeraPluginProcessorConfig>();
 
             CheckCameraHandle(irCameraHandle);
 

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/IUserLocalCommunicationService.cs

@@ -65,7 +65,7 @@ namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator
             // TODO: Call nn::arp::GetApplicationControlProperty here when implemented.
             ApplicationControlProperty controlProperty = context.Device.Processes.ActiveApplication.ApplicationControlProperties;
 
-            foreach (var localCommunicationId in controlProperty.LocalCommunicationId.ItemsRo)
+            foreach (ulong localCommunicationId in controlProperty.LocalCommunicationId.ItemsRo)
             {
                 if (localCommunicationId == localCommunicationIdChecked)
                 {

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/LdnMitm/LanDiscovery.cs

@@ -244,7 +244,7 @@ namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.LdnMitm
 
             byte[] ip = address.GetAddressBytes();
 
-            var macAddress = new Array6<byte>();
+            Array6<byte> macAddress = new Array6<byte>();
             new byte[] { 0x02, 0x00, ip[0], ip[1], ip[2], ip[3] }.CopyTo(macAddress.AsSpan());
 
             return macAddress;

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/LdnMitm/Proxy/LdnProxyUdpServer.cs

@@ -112,7 +112,7 @@ namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.LdnMitm.Proxy
 
             lock (_scanLock)
             {
-                var newResults = _scanResultsLast;
+                Dictionary<ulong, NetworkInfo> newResults = _scanResultsLast;
                 newResults.Clear();
 
                 _scanResultsLast = _scanResults;
@@ -138,7 +138,7 @@ namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.LdnMitm.Proxy
 
             lock (_scanLock)
             {
-                var results = new Dictionary<ulong, NetworkInfo>();
+                Dictionary<ulong, NetworkInfo> results = new Dictionary<ulong, NetworkInfo>();
 
                 foreach (KeyValuePair<ulong, NetworkInfo> last in _scanResultsLast)
                 {

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/LdnRyu/LdnMasterProxyClient.cs

@@ -490,7 +490,7 @@ namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.LdnRyu
             SendAsync(_protocol.Encode(PacketId.CreateAccessPoint, request, advertiseData));
 
             // Send a network change event with dummy data immediately. Necessary to avoid crashes in some games
-            var networkChangeEvent = new NetworkChangeEventArgs(new NetworkInfo()
+            NetworkChangeEventArgs networkChangeEvent = new NetworkChangeEventArgs(new NetworkInfo()
             {
                 Common = new CommonNetworkInfo()
                 {
@@ -610,7 +610,7 @@ namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.LdnRyu
 
             SendAsync(_protocol.Encode(PacketId.Connect, request));
 
-            var networkChangeEvent = new NetworkChangeEventArgs(new NetworkInfo()
+            NetworkChangeEventArgs networkChangeEvent = new NetworkChangeEventArgs(new NetworkInfo()
             {
                 Common = request.NetworkInfo.Common,
                 Ldn = request.NetworkInfo.Ldn

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/LdnRyu/Proxy/LdnProxySocket.cs

@@ -256,7 +256,7 @@ namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.LdnRyu.Proxy
             {
                 _proxy.ReturnEphemeralPort(ProtocolType, (ushort)((IPEndPoint)LocalEndPoint).Port);
             }
-            var asIPEndpoint = (IPEndPoint)localEP;
+            IPEndPoint asIPEndpoint = (IPEndPoint)localEP;
             if (asIPEndpoint.Port == 0)
             {
                 asIPEndpoint.Port = (ushort)_proxy.GetEphemeralPort(ProtocolType);

src/Ryujinx.HLE/HOS/Services/Mii/Types/CoreData.cs

@@ -440,18 +440,18 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
 
             int indexFor4 = 3 * (int)age + 9 * (int)gender + (int)race;
 
-            var facelineTypeInfo = RandomMiiFacelineArray[indexFor4];
-            var facelineColorInfo = RandomMiiFacelineColorArray[3 * (int)gender + (int)race];
-            var facelineWrinkleInfo = RandomMiiFacelineWrinkleArray[indexFor4];
-            var facelineMakeInfo = RandomMiiFacelineMakeArray[indexFor4];
-            var hairTypeInfo = RandomMiiHairTypeArray[indexFor4];
-            var hairColorInfo = RandomMiiHairColorArray[3 * (int)race + (int)age];
-            var eyeTypeInfo = RandomMiiEyeTypeArray[indexFor4];
-            var eyeColorInfo = RandomMiiEyeColorArray[(int)race];
-            var eyebrowTypeInfo = RandomMiiEyebrowTypeArray[indexFor4];
-            var noseTypeInfo = RandomMiiNoseTypeArray[indexFor4];
-            var mouthTypeInfo = RandomMiiMouthTypeArray[indexFor4];
-            var glassTypeInfo = RandomMiiGlassTypeArray[(int)age];
+            RandomMiiData4 facelineTypeInfo = RandomMiiFacelineArray[indexFor4];
+            RandomMiiData3 facelineColorInfo = RandomMiiFacelineColorArray[3 * (int)gender + (int)race];
+            RandomMiiData4 facelineWrinkleInfo = RandomMiiFacelineWrinkleArray[indexFor4];
+            RandomMiiData4 facelineMakeInfo = RandomMiiFacelineMakeArray[indexFor4];
+            RandomMiiData4 hairTypeInfo = RandomMiiHairTypeArray[indexFor4];
+            RandomMiiData3 hairColorInfo = RandomMiiHairColorArray[3 * (int)race + (int)age];
+            RandomMiiData4 eyeTypeInfo = RandomMiiEyeTypeArray[indexFor4];
+            RandomMiiData2 eyeColorInfo = RandomMiiEyeColorArray[(int)race];
+            RandomMiiData4 eyebrowTypeInfo = RandomMiiEyebrowTypeArray[indexFor4];
+            RandomMiiData4 noseTypeInfo = RandomMiiNoseTypeArray[indexFor4];
+            RandomMiiData4 mouthTypeInfo = RandomMiiMouthTypeArray[indexFor4];
+            RandomMiiData2 glassTypeInfo = RandomMiiGlassTypeArray[(int)age];
 
             // Faceline
             coreData.FacelineType = (FacelineType)facelineTypeInfo.Values[utilImpl.GetRandom(facelineTypeInfo.ValuesCount)];

src/Ryujinx.HLE/HOS/Services/Nfc/AmiiboDecryption/AmiiboDecryptor.cs

@@ -9,8 +9,8 @@ namespace Ryujinx.HLE.HOS.Services.Nfc.AmiiboDecryption
 
         public AmiiboDecryptor(string keyRetailBinPath)
         {
-            var combinedKeys = File.ReadAllBytes(keyRetailBinPath);
-            var keys = AmiiboMasterKey.FromCombinedBin(combinedKeys);
+            byte[] combinedKeys = File.ReadAllBytes(keyRetailBinPath);
+            (AmiiboMasterKey DataKey, AmiiboMasterKey TagKey) keys = AmiiboMasterKey.FromCombinedBin(combinedKeys);
             DataKey = keys.DataKey;
             TagKey = keys.TagKey;
         }

src/Ryujinx.HLE/HOS/Services/Nfc/AmiiboDecryption/AmiiboDump.cs

@@ -85,13 +85,13 @@ namespace Ryujinx.HLE.HOS.Services.Nfc.AmiiboDecryption
             if (deriveAes)
             {
                 // Derive AES Key and IV
-                var dataForAes = new byte[2 + seedBytes.Length];
+                byte[] dataForAes = new byte[2 + seedBytes.Length];
                 dataForAes[0] = 0x00;
                 dataForAes[1] = 0x00; // Counter (0)
                 Array.Copy(seedBytes, 0, dataForAes, 2, seedBytes.Length);
 
                 byte[] derivedBytes;
-                using (var hmac = new HMACSHA256(key.HmacKey))
+                using (HMACSHA256 hmac = new HMACSHA256(key.HmacKey))
                 {
                     derivedBytes = hmac.ComputeHash(dataForAes);
                 }
@@ -100,12 +100,12 @@ namespace Ryujinx.HLE.HOS.Services.Nfc.AmiiboDecryption
                 derivedAesIv = derivedBytes.Skip(16).Take(16).ToArray();
 
                 // Derive HMAC Key
-                var dataForHmacKey = new byte[2 + seedBytes.Length];
+                byte[] dataForHmacKey = new byte[2 + seedBytes.Length];
                 dataForHmacKey[0] = 0x00;
                 dataForHmacKey[1] = 0x01; // Counter (1)
                 Array.Copy(seedBytes, 0, dataForHmacKey, 2, seedBytes.Length);
 
-                using (var hmac = new HMACSHA256(key.HmacKey))
+                using (HMACSHA256 hmac = new HMACSHA256(key.HmacKey))
                 {
                     derivedBytes = hmac.ComputeHash(dataForHmacKey);
                 }
@@ -115,13 +115,13 @@ namespace Ryujinx.HLE.HOS.Services.Nfc.AmiiboDecryption
             else
             {
                 // Derive HMAC Key only
-                var dataForHmacKey = new byte[2 + seedBytes.Length];
+                byte[] dataForHmacKey = new byte[2 + seedBytes.Length];
                 dataForHmacKey[0] = 0x00;
                 dataForHmacKey[1] = 0x01; // Counter (1)
                 Array.Copy(seedBytes, 0, dataForHmacKey, 2, seedBytes.Length);
 
                 byte[] derivedBytes;
-                using (var hmac = new HMACSHA256(key.HmacKey))
+                using (HMACSHA256 hmac = new HMACSHA256(key.HmacKey))
                 {
                     derivedBytes = hmac.ComputeHash(dataForHmacKey);
                 }
@@ -229,7 +229,7 @@ namespace Ryujinx.HLE.HOS.Services.Nfc.AmiiboDecryption
             Array.Copy(data, 0x054, tagHmacData, 8, 44);
 
             byte[] tagHmac;
-            using (var hmac = new HMACSHA256(hmacTagKey))
+            using (HMACSHA256 hmac = new HMACSHA256(hmacTagKey))
             {
                 tagHmac = hmac.ComputeHash(tagHmacData);
             }
@@ -258,7 +258,7 @@ namespace Ryujinx.HLE.HOS.Services.Nfc.AmiiboDecryption
             Array.Copy(data, 0x054, dataHmacData, offset, len5);
 
             byte[] dataHmac;
-            using (var hmac = new HMACSHA256(hmacDataKey))
+            using (HMACSHA256 hmac = new HMACSHA256(hmacDataKey))
             {
                 dataHmac = hmac.ComputeHash(dataHmacData);
             }
@@ -278,7 +278,7 @@ namespace Ryujinx.HLE.HOS.Services.Nfc.AmiiboDecryption
             Array.Copy(data, 0x054, tagHmacData, 8, 44);
 
             byte[] calculatedTagHmac;
-            using (var hmac = new HMACSHA256(hmacTagKey))
+            using (HMACSHA256 hmac = new HMACSHA256(hmacTagKey))
             {
                 calculatedTagHmac = hmac.ComputeHash(tagHmacData);
             }
@@ -312,7 +312,7 @@ namespace Ryujinx.HLE.HOS.Services.Nfc.AmiiboDecryption
             Array.Copy(data, 0x054, dataHmacData, offset, len5);
 
             byte[] calculatedDataHmac;
-            using (var hmac = new HMACSHA256(hmacDataKey))
+            using (HMACSHA256 hmac = new HMACSHA256(hmacDataKey))
             {
                 calculatedDataHmac = hmac.ComputeHash(dataHmacData);
             }

src/Ryujinx.HLE/HOS/Services/Nv/Host1xContext.cs

@@ -18,8 +18,8 @@ namespace Ryujinx.HLE.HOS.Services.Nv
             MemoryAllocator = new NvMemoryAllocator();
             Host1x = new Host1xDevice(gpu.Synchronization);
             Smmu = gpu.CreateDeviceMemoryManager(pid);
-            var nvdec = new NvdecDevice(Smmu);
-            var vic = new VicDevice(Smmu);
+            NvdecDevice nvdec = new NvdecDevice(Smmu);
+            VicDevice vic = new VicDevice(Smmu);
             Host1x.RegisterDevice(ClassId.Nvdec, nvdec);
             Host1x.RegisterDevice(ClassId.Vic, vic);
         }

src/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvHostAsGpu/NvHostAsGpuDeviceFile.cs

@@ -104,7 +104,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostAsGpu
 
         private NvInternalResult BindChannel(ref BindChannelArguments arguments)
         {
-            var channelDeviceFile = INvDrvServices.DeviceFileIdRegistry.GetData<NvHostChannelDeviceFile>(arguments.Fd);
+            NvHostChannelDeviceFile channelDeviceFile = INvDrvServices.DeviceFileIdRegistry.GetData<NvHostChannelDeviceFile>(arguments.Fd);
             if (channelDeviceFile == null)
             {
                 // TODO: Return invalid Fd error.
@@ -336,9 +336,9 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostAsGpu
 
             for (uint i = 0; i < writeEntries; i++)
             {
-                ref var region = ref arguments.Regions[(int)i];
+                ref VaRegion region = ref arguments.Regions[(int)i];
 
-                var vmRegion = _vmRegions[i];
+                VmRegion vmRegion = _vmRegions[i];
                 uint pageSize = _pageSizes[i];
 
                 region.PageSize = pageSize;

src/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvHostChannel/NvHostChannelDeviceFile.cs

@@ -169,7 +169,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostChannel
                 {
                     NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(Owner, commandBuffer.Mem);
 
-                    var data = _memory.GetSpan(map.Address + commandBuffer.Offset, commandBuffer.WordsCount * 4);
+                    ReadOnlySpan<byte> data = _memory.GetSpan(map.Address + commandBuffer.Offset, commandBuffer.WordsCount * 4);
 
                     _host1xContext.Host1x.Submit(MemoryMarshal.Cast<byte, int>(data), _contextId);
                 }

src/Ryujinx.HLE/HOS/Services/Sdb/Pdm/QueryService/QueryPlayStatisticsManager.cs

@@ -55,7 +55,7 @@ namespace Ryujinx.HLE.HOS.Services.Sdb.Pdm.QueryService
             MemoryHelper.FillWithZeros(context.Memory, outputPosition, (int)outputSize);
 
             // Return ResultCode.ServiceUnavailable if data is locked by another process.
-            var filteredApplicationPlayStatistics = _applicationPlayStatistics.AsEnumerable();
+            IEnumerable<KeyValuePair<UserId, ApplicationPlayStatistics>> filteredApplicationPlayStatistics = _applicationPlayStatistics.AsEnumerable();
 
             if (queryCapability == PlayLogQueryCapability.None)
             {

src/Ryujinx.HLE/HOS/Services/Sdb/Pl/SharedFontManager.cs

@@ -76,7 +76,7 @@ namespace Ryujinx.HLE.HOS.Services.Sdb.Pl
                                 Nca nca = new(_device.System.KeySet, ncaFileStream);
                                 IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _device.System.FsIntegrityCheckLevel);
 
-                                using var fontFile = new UniqueRef<IFile>();
+                                using UniqueRef<IFile> fontFile = new UniqueRef<IFile>();
 
                                 romfs.OpenFile(ref fontFile.Ref, ("/" + fontFilename).ToU8Span(), OpenMode.Read).ThrowIfFailure();
 

src/Ryujinx.HLE/HOS/Services/ServerBase.cs

@@ -1,3 +1,4 @@
+using Microsoft.IO;
 using Ryujinx.Common;
 using Ryujinx.Common.Logging;
 using Ryujinx.Common.Memory;
@@ -235,7 +236,7 @@ namespace Ryujinx.HLE.HOS.Services
                     }
                 }
 
-                var rc = _context.Syscall.ReplyAndReceive(out int signaledIndex, handles.AsSpan(0, handleCount), replyTargetHandle, -1);
+                Result rc = _context.Syscall.ReplyAndReceive(out int signaledIndex, handles.AsSpan(0, handleCount), replyTargetHandle, -1);
 
                 _selfThread.HandlePostSyscall();
 
@@ -307,7 +308,7 @@ namespace Ryujinx.HLE.HOS.Services
         {
             _context.Syscall.CloseHandle(serverSessionHandle);
 
-            if (RemoveSessionObj(serverSessionHandle, out var session))
+            if (RemoveSessionObj(serverSessionHandle, out IpcService session))
             {
                 (session as IDisposable)?.Dispose();
             }
@@ -453,7 +454,7 @@ namespace Ryujinx.HLE.HOS.Services
 
                 response.RawData = _responseDataStream.ToArray();
 
-                using var responseStream = response.GetStreamTipc();
+                using RecyclableMemoryStream responseStream = response.GetStreamTipc();
                 _selfProcess.CpuMemory.Write(_selfThread.TlsAddress, responseStream.GetReadOnlySequence());
             }
             else
@@ -463,7 +464,7 @@ namespace Ryujinx.HLE.HOS.Services
 
             if (!isTipcCommunication)
             {
-                using var responseStream = response.GetStream((long)_selfThread.TlsAddress, recvListAddr | ((ulong)PointerBufferSize << 48));
+                using RecyclableMemoryStream responseStream = response.GetStream((long)_selfThread.TlsAddress, recvListAddr | ((ulong)PointerBufferSize << 48));
                 _selfProcess.CpuMemory.Write(_selfThread.TlsAddress, responseStream.GetReadOnlySequence());
             }
 

src/Ryujinx.HLE/HOS/Services/Settings/ISystemSettingsServer.cs

@@ -326,7 +326,7 @@ namespace Ryujinx.HLE.HOS.Services.Settings
 
             IFileSystem firmwareRomFs = firmwareContent.OpenFileSystem(NcaSectionType.Data, device.System.FsIntegrityCheckLevel);
 
-            using var firmwareFile = new UniqueRef<IFile>();
+            using UniqueRef<IFile> firmwareFile = new UniqueRef<IFile>();
 
             Result result = firmwareRomFs.OpenFile(ref firmwareFile.Ref, "/file".ToU8Span(), OpenMode.Read);
             if (result.IsFailure())

src/Ryujinx.HLE/HOS/Services/Sockets/Bsd/IClient.cs

@@ -315,9 +315,9 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
                 }
             }
 
-            using var readFdsOut = context.Memory.GetWritableRegion(readFdsOutBufferPosition, (int)readFdsOutBufferSize);
-            using var writeFdsOut = context.Memory.GetWritableRegion(writeFdsOutBufferPosition, (int)writeFdsOutBufferSize);
-            using var errorFdsOut = context.Memory.GetWritableRegion(errorFdsOutBufferPosition, (int)errorFdsOutBufferSize);
+            using WritableRegion readFdsOut = context.Memory.GetWritableRegion(readFdsOutBufferPosition, (int)readFdsOutBufferSize);
+            using WritableRegion writeFdsOut = context.Memory.GetWritableRegion(writeFdsOutBufferPosition, (int)writeFdsOutBufferSize);
+            using WritableRegion errorFdsOut = context.Memory.GetWritableRegion(errorFdsOutBufferPosition, (int)errorFdsOutBufferSize);
 
             _context.BuildMask(readFds, readFdsOut.Memory.Span);
             _context.BuildMask(writeFds, writeFdsOut.Memory.Span);

src/Ryujinx.HLE/HOS/Services/Sockets/Bsd/Impl/WinSockHelper.cs

@@ -303,7 +303,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd.Impl
 
         public static bool TryConvertSocketOption(BsdSocketOption option, SocketOptionLevel level, out SocketOptionName name)
         {
-            var table = level switch
+            Dictionary<BsdSocketOption, SocketOptionName> table = level switch
             {
                 SocketOptionLevel.Socket => _soSocketOptionMap,
                 SocketOptionLevel.IP => _ipSocketOptionMap,
@@ -322,7 +322,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd.Impl
 
         public static LinuxError ValidateSocketOption(BsdSocketOption option, SocketOptionLevel level, bool write)
         {
-            var table = level switch
+            Dictionary<BsdSocketOption, OptionDir> table = level switch
             {
                 SocketOptionLevel.Socket => _validSoSocketOptionMap,
                 SocketOptionLevel.IP => _validIpSocketOptionMap,

src/Ryujinx.HLE/HOS/Services/Sockets/Bsd/Proxy/SocketHelpers.cs

@@ -12,9 +12,9 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd.Proxy
 
         public static void Select(List<ISocketImpl> readEvents, List<ISocketImpl> writeEvents, List<ISocketImpl> errorEvents, int timeout)
         {
-            var readDefault = readEvents.Select(x => (x as DefaultSocket)?.BaseSocket).Where(x => x != null).ToList();
-            var writeDefault = writeEvents.Select(x => (x as DefaultSocket)?.BaseSocket).Where(x => x != null).ToList();
-            var errorDefault = errorEvents.Select(x => (x as DefaultSocket)?.BaseSocket).Where(x => x != null).ToList();
+            List<Socket> readDefault = readEvents.Select(x => (x as DefaultSocket)?.BaseSocket).Where(x => x != null).ToList();
+            List<Socket> writeDefault = writeEvents.Select(x => (x as DefaultSocket)?.BaseSocket).Where(x => x != null).ToList();
+            List<Socket> errorDefault = errorEvents.Select(x => (x as DefaultSocket)?.BaseSocket).Where(x => x != null).ToList();
 
             if (readDefault.Count != 0 || writeDefault.Count != 0 || errorDefault.Count != 0)
             {

src/Ryujinx.HLE/HOS/Services/Sockets/Sfdnsres/Proxy/DnsMitmResolver.cs

@@ -82,7 +82,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres.Proxy
 
         public IPHostEntry ResolveAddress(string host)
         {
-            foreach (var hostEntry in _mitmHostEntries)
+            foreach (KeyValuePair<string, IPAddress> hostEntry in _mitmHostEntries)
             {
                 // Check for AMS hosts file extension: "*"
                 // NOTE: MatchesSimpleExpression also allows "?" as a wildcard

src/Ryujinx.HLE/HOS/Services/Ssl/BuiltInCertificateManager.cs

@@ -129,7 +129,7 @@ namespace Ryujinx.HLE.HOS.Services.Ssl
 
                     IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _fsIntegrityCheckLevel);
 
-                    using var trustedCertsFileRef = new UniqueRef<IFile>();
+                    using UniqueRef<IFile> trustedCertsFileRef = new UniqueRef<IFile>();
 
                     Result result = romfs.OpenFile(ref trustedCertsFileRef.Ref, "/ssl_TrustedCerts.bdf".ToU8Span(), OpenMode.Read);
 

src/Ryujinx.HLE/HOS/Services/Ssl/SslService/ISslConnection.cs

@@ -145,7 +145,7 @@ namespace Ryujinx.HLE.HOS.Services.Ssl.SslService
             ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
             ulong bufferLen = context.Request.ReceiveBuff[0].Size;
 
-            using (var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true))
+            using (WritableRegion region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true))
             {
                 Encoding.ASCII.GetBytes(_hostName, region.Memory.Span);
             }

src/Ryujinx.HLE/HOS/Services/Time/TimeZone/TimeZoneContentManager.cs

@@ -94,7 +94,7 @@ namespace Ryujinx.HLE.HOS.Services.Time.TimeZone
                 Nca nca = new(_virtualFileSystem.KeySet, ncaFileStream);
                 IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _fsIntegrityCheckLevel);
 
-                using var binaryListFile = new UniqueRef<IFile>();
+                using UniqueRef<IFile> binaryListFile = new UniqueRef<IFile>();
 
                 romfs.OpenFile(ref binaryListFile.Ref, "/binaryList.txt".ToU8Span(), OpenMode.Read).ThrowIfFailure();
 
@@ -120,7 +120,7 @@ namespace Ryujinx.HLE.HOS.Services.Time.TimeZone
 
         public IEnumerable<(int Offset, string Location, string Abbr)> ParseTzOffsets()
         {
-            var tzBinaryContentPath = GetTimeZoneBinaryTitleContentPath();
+            string tzBinaryContentPath = GetTimeZoneBinaryTitleContentPath();
 
             if (string.IsNullOrEmpty(tzBinaryContentPath))
             {
@@ -128,7 +128,7 @@ namespace Ryujinx.HLE.HOS.Services.Time.TimeZone
             }
 
             List<(int Offset, string Location, string Abbr)> outList = new();
-            var now = DateTimeOffset.Now.ToUnixTimeSeconds();
+            long now = DateTimeOffset.Now.ToUnixTimeSeconds();
             using (IStorage ncaStorage = new LocalStorage(VirtualFileSystem.SwitchPathToSystemPath(tzBinaryContentPath), FileAccess.Read, FileMode.Open))
             using (IFileSystem romfs = new Nca(_virtualFileSystem.KeySet, ncaStorage).OpenFileSystem(NcaSectionType.Data, _fsIntegrityCheckLevel))
             {
@@ -139,7 +139,7 @@ namespace Ryujinx.HLE.HOS.Services.Time.TimeZone
                         continue;
                     }
 
-                    using var tzif = new UniqueRef<IFile>();
+                    using UniqueRef<IFile> tzif = new UniqueRef<IFile>();
 
                     if (romfs.OpenFile(ref tzif.Ref, $"/zoneinfo/{locName}".ToU8Span(), OpenMode.Read).IsFailure())
                     {
@@ -176,7 +176,7 @@ namespace Ryujinx.HLE.HOS.Services.Time.TimeZone
                         continue;
                     }
 
-                    var abbrStart = tzRule.Chars[ttInfo.AbbreviationListIndex..];
+                    Span<byte> abbrStart = tzRule.Chars[ttInfo.AbbreviationListIndex..];
                     int abbrEnd = abbrStart.IndexOf((byte)0);
 
                     outList.Add((ttInfo.GmtOffset, locName, Encoding.UTF8.GetString(abbrStart[..abbrEnd])));
@@ -269,7 +269,7 @@ namespace Ryujinx.HLE.HOS.Services.Time.TimeZone
             Nca nca = new(_virtualFileSystem.KeySet, ncaFile);
             IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _fsIntegrityCheckLevel);
 
-            using var timeZoneBinaryFile = new UniqueRef<IFile>();
+            using UniqueRef<IFile> timeZoneBinaryFile = new UniqueRef<IFile>();
 
             Result result = romfs.OpenFile(ref timeZoneBinaryFile.Ref, $"/zoneinfo/{locationName}".ToU8Span(), OpenMode.Read);
 

src/Ryujinx.HLE/HOS/Tamper/CodeEmitters/EndConditionalBlock.cs

@@ -40,7 +40,7 @@ namespace Ryujinx.HLE.HOS.Tamper.CodeEmitters
             }
 
             // Use the conditional begin instruction stored in the stack.
-            var upperInstruction = context.CurrentBlock.BaseInstruction;
+            byte[] upperInstruction = context.CurrentBlock.BaseInstruction;
             CodeType codeType = InstructionHelper.GetCodeType(upperInstruction);
 
             // Pop the current block of operations from the stack so control instructions

src/Ryujinx.HLE/HOS/Tamper/InstructionHelper.cs

@@ -96,7 +96,7 @@ namespace Ryujinx.HLE.HOS.Tamper
             // Instructions are multi-word, with 32bit words. Split the raw instruction
             // and parse each word into individual nybbles of bits.
 
-            var words = rawInstruction.Split((char[])null, StringSplitOptions.RemoveEmptyEntries);
+            string[] words = rawInstruction.Split((char[])null, StringSplitOptions.RemoveEmptyEntries);
 
             byte[] instruction = new byte[WordSize * words.Length];
 

src/Ryujinx.HLE/HOS/TamperMachine.cs

@@ -70,14 +70,14 @@ namespace Ryujinx.HLE.HOS
 
         public void EnableCheats(string[] enabledCheats)
         {
-            foreach (var program in _programDictionary.Values)
+            foreach (ITamperProgram program in _programDictionary.Values)
             {
                 program.IsEnabled = false;
             }
 
-            foreach (var cheat in enabledCheats)
+            foreach (string cheat in enabledCheats)
             {
-                if (_programDictionary.TryGetValue(cheat, out var program))
+                if (_programDictionary.TryGetValue(cheat, out ITamperProgram program))
                 {
                     program.IsEnabled = true;
                 }

src/Ryujinx.HLE/Loaders/Executables/KipExecutable.cs

@@ -76,7 +76,7 @@ namespace Ryujinx.HLE.Loaders.Executables
         {
             reader.GetSegmentSize(segmentType, out int uncompressedSize).ThrowIfFailure();
 
-            var span = program.AsSpan((int)offset, uncompressedSize);
+            Span<byte> span = program.AsSpan((int)offset, uncompressedSize);
 
             reader.ReadSegment(segmentType, span).ThrowIfFailure();
 

src/Ryujinx.HLE/Loaders/Executables/NsoExecutable.cs

@@ -65,7 +65,7 @@ namespace Ryujinx.HLE.Loaders.Executables
         {
             reader.GetSegmentSize(segmentType, out uint uncompressedSize).ThrowIfFailure();
 
-            var span = Program.AsSpan((int)offset, (int)uncompressedSize);
+            Span<byte> span = Program.AsSpan((int)offset, (int)uncompressedSize);
 
             reader.ReadSegment(segmentType, span).ThrowIfFailure();
 

src/Ryujinx.HLE/Loaders/Mods/IPSPatcher.cs

@@ -25,7 +25,7 @@ namespace Ryujinx.HLE.Loaders.Mods
             ReadOnlySpan<byte> ips32TailMagic = "EEOF"u8;
 
             MemPatch patches = new();
-            var header = reader.ReadBytes(ipsHeaderMagic.Length).AsSpan();
+            Span<byte> header = reader.ReadBytes(ipsHeaderMagic.Length).AsSpan();
 
             if (header.Length != ipsHeaderMagic.Length)
             {
@@ -94,7 +94,7 @@ namespace Ryujinx.HLE.Loaders.Mods
                 }
                 else // Copy mode
                 {
-                    var patch = reader.ReadBytes(patchSize);
+                    byte[] patch = reader.ReadBytes(patchSize);
 
                     if (patch.Length != patchSize)
                     {

src/Ryujinx.HLE/Loaders/Mods/IPSwitchPatcher.cs

@@ -200,7 +200,7 @@ namespace Ryujinx.HLE.Loaders.Mods
                 }
                 else if (line.StartsWith("@flag"))
                 {
-                    var tokens = line.Split(' ', 3, StringSplitOptions.RemoveEmptyEntries);
+                    string[] tokens = line.Split(' ', 3, StringSplitOptions.RemoveEmptyEntries);
 
                     if (tokens.Length < 2)
                     {
@@ -234,7 +234,7 @@ namespace Ryujinx.HLE.Loaders.Mods
                         continue;
                     }
 
-                    var tokens = line.Split(' ', 2, StringSplitOptions.RemoveEmptyEntries);
+                    string[] tokens = line.Split(' ', 2, StringSplitOptions.RemoveEmptyEntries);
 
                     if (tokens.Length < 2)
                     {
@@ -259,12 +259,12 @@ namespace Ryujinx.HLE.Loaders.Mods
 
                     if (tokens[1][0] == '"')
                     {
-                        var patch = Encoding.ASCII.GetBytes(tokens[1].Trim('"') + "\0");
+                        byte[] patch = Encoding.ASCII.GetBytes(tokens[1].Trim('"') + "\0");
                         patches.Add((uint)offset, patch);
                     }
                     else
                     {
-                        var patch = Hex2ByteArrayBE(tokens[1]);
+                        byte[] patch = Hex2ByteArrayBE(tokens[1]);
                         patches.Add((uint)offset, patch);
                     }
                 }

src/Ryujinx.HLE/Loaders/Mods/MemPatch.cs

@@ -46,7 +46,7 @@ namespace Ryujinx.HLE.Loaders.Mods
                 return;
             }
 
-            foreach (var (patchOffset, patch) in patches._patches)
+            foreach ((uint patchOffset, byte[] patch) in patches._patches)
             {
                 _patches[patchOffset] = patch;
             }
@@ -66,7 +66,7 @@ namespace Ryujinx.HLE.Loaders.Mods
         public int Patch(Span<byte> memory, int protectedOffset = 0)
         {
             int count = 0;
-            foreach (var (offset, patch) in _patches.OrderBy(item => item.Key))
+            foreach ((uint offset, byte[] patch) in _patches.OrderBy(item => item.Key))
             {
                 int patchOffset = (int)offset;
                 int patchSize = patch.Length;

src/Ryujinx.HLE/Loaders/Processes/Extensions/FileSystemExtensions.cs

@@ -62,7 +62,7 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
 
                 Logger.Info?.Print(LogClass.Loader, $"Loading {name}...");
 
-                using var nsoFile = new UniqueRef<IFile>();
+                using UniqueRef<IFile> nsoFile = new UniqueRef<IFile>();
 
                 exeFs.OpenFile(ref nsoFile.Ref, $"/{name}".ToU8Span(), OpenMode.Read).ThrowIfFailure();
 

src/Ryujinx.HLE/Loaders/Processes/Extensions/LocalFileSystemExtensions.cs

@@ -12,7 +12,7 @@ namespace Ryujinx.HLE.Loaders.Processes
         public static ProcessResult Load(this LocalFileSystem exeFs, Switch device, string romFsPath = "")
         {
             MetaLoader metaLoader = exeFs.GetNpdm();
-            var nacpData = new BlitStruct<ApplicationControlProperty>(1);
+            BlitStruct<ApplicationControlProperty> nacpData = new BlitStruct<ApplicationControlProperty>(1);
             ulong programId = metaLoader.GetProgramId();
 
             device.Configuration.VirtualFileSystem.ModLoader.CollectMods([programId]);

src/Ryujinx.HLE/Loaders/Processes/Extensions/MetaLoaderExtensions.cs

@@ -12,21 +12,21 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
     {
         public static ulong GetProgramId(this MetaLoader metaLoader)
         {
-            metaLoader.GetNpdm(out var npdm).ThrowIfFailure();
+            metaLoader.GetNpdm(out LibHac.Loader.Npdm npdm).ThrowIfFailure();
 
             return npdm.Aci.ProgramId.Value;
         }
 
         public static string GetProgramName(this MetaLoader metaLoader)
         {
-            metaLoader.GetNpdm(out var npdm).ThrowIfFailure();
+            metaLoader.GetNpdm(out LibHac.Loader.Npdm npdm).ThrowIfFailure();
 
             return StringUtils.Utf8ZToString(npdm.Meta.ProgramName);
         }
 
         public static bool IsProgram64Bit(this MetaLoader metaLoader)
         {
-            metaLoader.GetNpdm(out var npdm).ThrowIfFailure();
+            metaLoader.GetNpdm(out LibHac.Loader.Npdm npdm).ThrowIfFailure();
 
             return (npdm.Meta.Flags & 1) != 0;
         }
@@ -45,7 +45,7 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
                 path = ProcessConst.MainNpdmPath;
             }
 
-            using var npdmFile = new UniqueRef<IFile>();
+            using UniqueRef<IFile> npdmFile = new UniqueRef<IFile>();
 
             fileSystem.OpenFile(ref npdmFile.Ref, path.ToU8Span(), OpenMode.Read).ThrowIfFailure();
 

src/Ryujinx.HLE/Loaders/Processes/Extensions/NcaExtensions.cs

@@ -49,7 +49,7 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
                 ModLoader.GetSdModsBasePath());
 
             // Load Nacp file.
-            var nacpData = new BlitStruct<ApplicationControlProperty>(1);
+            BlitStruct<ApplicationControlProperty> nacpData = new BlitStruct<ApplicationControlProperty>(1);
 
             if (controlNca != null)
             {
@@ -214,9 +214,9 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
 
         public static BlitStruct<ApplicationControlProperty> GetNacp(this Nca controlNca, Switch device)
         {
-            var nacpData = new BlitStruct<ApplicationControlProperty>(1);
+            BlitStruct<ApplicationControlProperty> nacpData = new BlitStruct<ApplicationControlProperty>(1);
 
-            using var controlFile = new UniqueRef<IFile>();
+            using UniqueRef<IFile> controlFile = new UniqueRef<IFile>();
 
             Result result = controlNca.OpenFileSystem(NcaSectionType.Data, device.System.FsIntegrityCheckLevel)
                                       .OpenFile(ref controlFile.Ref, "/control.nacp".ToU8Span(), OpenMode.Read);
@@ -236,7 +236,7 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
         public static Cnmt GetCnmt(this Nca cnmtNca, IntegrityCheckLevel checkLevel, ContentMetaType metaType)
         {
             string path = $"/{metaType}_{cnmtNca.Header.TitleId:x16}.cnmt";
-            using var cnmtFile = new UniqueRef<IFile>();
+            using UniqueRef<IFile> cnmtFile = new UniqueRef<IFile>();
 
             try
             {

src/Ryujinx.HLE/Loaders/Processes/Extensions/PartitionFileSystemExtensions.cs

@@ -28,7 +28,7 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
         {
             fileSystem.ImportTickets(partitionFileSystem);
 
-            var programs = new Dictionary<ulong, ContentMetaData>();
+            Dictionary<ulong, ContentMetaData> programs = new Dictionary<ulong, ContentMetaData>();
 
             foreach (DirectoryEntryEx fileEntry in partitionFileSystem.EnumerateEntries("/", "*.cnmt.nca"))
             {
@@ -152,7 +152,7 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
 
         public static Nca GetNca(this IFileSystem fileSystem, KeySet keySet, string path)
         {
-            using var ncaFile = new UniqueRef<IFile>();
+            using UniqueRef<IFile> ncaFile = new UniqueRef<IFile>();
 
             fileSystem.OpenFile(ref ncaFile.Ref, path.ToU8Span(), OpenMode.Read).ThrowIfFailure();
 

src/Ryujinx.HLE/Loaders/Processes/ProcessLoader.cs

@@ -161,7 +161,7 @@ namespace Ryujinx.HLE.Loaders.Processes
 
         public bool LoadNxo(string path)
         {
-            var nacpData = new BlitStruct<ApplicationControlProperty>(1);
+            BlitStruct<ApplicationControlProperty> nacpData = new BlitStruct<ApplicationControlProperty>(1);
             IFileSystem dummyExeFs = null;
             Stream romfsStream = null;
 

src/Ryujinx.HLE/Loaders/Processes/ProcessLoaderHelper.cs

@@ -180,7 +180,7 @@ namespace Ryujinx.HLE.Loaders.Processes
 
             KProcess process = new(context);
 
-            var processContextFactory = new ArmProcessContextFactory(
+            ArmProcessContextFactory processContextFactory = new ArmProcessContextFactory(
                 context.Device.System.TickSource,
                 context.Device.Gpu,
                 string.Empty,
@@ -235,7 +235,7 @@ namespace Ryujinx.HLE.Loaders.Processes
         {
             context.Device.System.ServiceTable.WaitServicesReady();
 
-            LibHac.Result resultCode = metaLoader.GetNpdm(out var npdm);
+            LibHac.Result resultCode = metaLoader.GetNpdm(out LibHac.Loader.Npdm npdm);
 
             if (resultCode.IsFailure())
             {
@@ -244,14 +244,14 @@ namespace Ryujinx.HLE.Loaders.Processes
                 return ProcessResult.Failed;
             }
 
-            ref readonly var meta = ref npdm.Meta;
+            ref readonly Meta meta = ref npdm.Meta;
 
             ulong argsStart = 0;
             uint argsSize = 0;
             ulong codeStart = ((meta.Flags & 1) != 0 ? 0x8000000UL : 0x200000UL) + CodeStartOffset;
             uint codeSize = 0;
 
-            var buildIds = new string[executables.Length];
+            string[] buildIds = new string[executables.Length];
 
             for (int i = 0; i < executables.Length; i++)
             {
@@ -373,7 +373,7 @@ namespace Ryujinx.HLE.Loaders.Processes
                 displayVersion = device.System.ContentManager.GetCurrentFirmwareVersion()?.VersionString ?? string.Empty;
             }
 
-            var processContextFactory = new ArmProcessContextFactory(
+            ArmProcessContextFactory processContextFactory = new ArmProcessContextFactory(
                 context.Device.System.TickSource,
                 context.Device.Gpu,
                 $"{programId:x16}",

src/Ryujinx.HLE/StructHelpers.cs

@@ -18,7 +18,7 @@ namespace Ryujinx.HLE
             const int OffsetOfApplicationPublisherStrings = 0x200;
             
             
-            var nacpData = new BlitStruct<ApplicationControlProperty>(1);
+            BlitStruct<ApplicationControlProperty> nacpData = new BlitStruct<ApplicationControlProperty>(1);
 
             // name and publisher buffer
             // repeat once for each locale (the ApplicationControlProperty has 16 locales)

src/Ryujinx.HLE/UI/Input/NpadReader.cs

@@ -1,5 +1,7 @@
+using Ryujinx.Common.Memory;
 using Ryujinx.HLE.HOS.Services.Hid.Types.SharedMemory.Common;
 using Ryujinx.HLE.HOS.Services.Hid.Types.SharedMemory.Npad;
+using System;
 
 namespace Ryujinx.HLE.UI.Input
 {
@@ -29,7 +31,7 @@ namespace Ryujinx.HLE.UI.Input
         {
             NpadButton buttons = 0;
 
-            foreach (var state in _lastStates)
+            foreach (NpadCommonState state in _lastStates)
             {
                 buttons |= state.Buttons;
             }
@@ -60,7 +62,7 @@ namespace Ryujinx.HLE.UI.Input
 
         public void Update(bool supressEvents = false)
         {
-            ref var npads = ref _device.Hid.SharedMemory.Npads;
+            ref Array10<NpadState> npads = ref _device.Hid.SharedMemory.Npads;
 
             // Process each input individually.
             for (int npadIndex = 0; npadIndex < npads.Length; npadIndex++)
@@ -73,10 +75,10 @@ namespace Ryujinx.HLE.UI.Input
         {
             const int MaxEntries = 1024;
 
-            ref var npadState = ref _device.Hid.SharedMemory.Npads[npadIndex];
-            ref var lastEntry = ref _lastStates[npadIndex];
+            ref NpadState npadState = ref _device.Hid.SharedMemory.Npads[npadIndex];
+            ref NpadCommonState lastEntry = ref _lastStates[npadIndex];
 
-            var fullKeyEntries = GetCommonStateLifo(ref npadState.InternalState).ReadEntries(MaxEntries);
+            ReadOnlySpan<AtomicStorage<NpadCommonState>> fullKeyEntries = GetCommonStateLifo(ref npadState.InternalState).ReadEntries(MaxEntries);
 
             int firstEntryNum;
 
@@ -94,7 +96,7 @@ namespace Ryujinx.HLE.UI.Input
 
             for (; firstEntryNum >= 0; firstEntryNum--)
             {
-                var entry = fullKeyEntries[firstEntryNum];
+                AtomicStorage<NpadCommonState> entry = fullKeyEntries[firstEntryNum];
 
                 // The interval of valid entries should be contiguous.
                 if (entry.SamplingNumber < lastEntry.SamplingNumber)

src/Ryujinx.HLE/Utilities/PartitionFileSystemUtils.cs

@@ -22,7 +22,7 @@ namespace Ryujinx.HLE.Utilities
             }
             else
             {
-                var pfsTemp = new PartitionFileSystem();
+                PartitionFileSystem pfsTemp = new PartitionFileSystem();
                 Result initResult = pfsTemp.Initialize(file.AsStorage());
 
                 if (throwOnFailure)