Merge pull request #4 from Ryujinx-NX/#7205-Auto-add-DLC-and-updates

#7205 auto add dlc and updates

src/Ryujinx.UI.Common/App/ApplicationAddedEventArgs.cs

@@ -1,9 +0,0 @@
-using System;
-
-namespace Ryujinx.UI.App.Common
-{
-    public class ApplicationAddedEventArgs : EventArgs
-    {
-        public ApplicationData AppData { get; set; }
-    }
-}

src/Ryujinx.UI.Common/App/ApplicationLibrary.cs

@@ -1,6 +1,7 @@
+using DynamicData;
+using DynamicData.Kernel;
 using LibHac;
 using LibHac.Common;
-using LibHac.Common.Keys;
 using LibHac.Fs;
 using LibHac.Fs.Fsa;
 using LibHac.FsSystem;
@@ -16,8 +17,11 @@ using Ryujinx.HLE.FileSystem;
 using Ryujinx.HLE.HOS.SystemState;
 using Ryujinx.HLE.Loaders.Npdm;
 using Ryujinx.HLE.Loaders.Processes.Extensions;
+using Ryujinx.HLE.Utilities;
 using Ryujinx.UI.Common.Configuration;
 using Ryujinx.UI.Common.Configuration.System;
+using Ryujinx.UI.Common.Helper;
+using Ryujinx.UI.Common.Models;
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -27,7 +31,9 @@ using System.Text;
 using System.Text.Json;
 using System.Threading;
 using ContentType = LibHac.Ncm.ContentType;
+using MissingKeyException = LibHac.Common.Keys.MissingKeyException;
 using Path = System.IO.Path;
+using SpanHelpers = LibHac.Common.SpanHelpers;
 using TimeSpan = System.TimeSpan;
 
 namespace Ryujinx.UI.App.Common
@@ -35,9 +41,12 @@ namespace Ryujinx.UI.App.Common
     public class ApplicationLibrary
     {
         public Language DesiredLanguage { get; set; }
-        public event EventHandler<ApplicationAddedEventArgs> ApplicationAdded;
         public event EventHandler<ApplicationCountUpdatedEventArgs> ApplicationCountUpdated;
 
+        public readonly IObservableCache<ApplicationData, ulong> Applications;
+        public readonly IObservableCache<(TitleUpdateModel TitleUpdate, bool IsSelected), TitleUpdateModel> TitleUpdates;
+        public readonly IObservableCache<(DownloadableContentModel Dlc, bool IsEnabled), DownloadableContentModel> DownloadableContents;
+
         private readonly byte[] _nspIcon;
         private readonly byte[] _xciIcon;
         private readonly byte[] _ncaIcon;
@@ -47,6 +56,9 @@ namespace Ryujinx.UI.App.Common
         private readonly VirtualFileSystem _virtualFileSystem;
         private readonly IntegrityCheckLevel _checkLevel;
         private CancellationTokenSource _cancellationToken;
+        private readonly SourceCache<ApplicationData, ulong> _applications = new(it => it.Id);
+        private readonly SourceCache<(TitleUpdateModel TitleUpdate, bool IsSelected), TitleUpdateModel> _titleUpdates = new(it => it.TitleUpdate);
+        private readonly SourceCache<(DownloadableContentModel Dlc, bool IsEnabled), DownloadableContentModel> _downloadableContents = new(it => it.Dlc);
 
         private static readonly ApplicationJsonSerializerContext _serializerContext = new(JsonHelper.GetDefaultSerializerOptions());
 
@@ -55,6 +67,10 @@ namespace Ryujinx.UI.App.Common
             _virtualFileSystem = virtualFileSystem;
             _checkLevel = checkLevel;
 
+            Applications = _applications.AsObservableCache();
+            TitleUpdates = _titleUpdates.AsObservableCache();
+            DownloadableContents = _downloadableContents.AsObservableCache();
+
             _nspIcon = GetResourceBytes("Ryujinx.UI.Common.Resources.Icon_NSP.png");
             _xciIcon = GetResourceBytes("Ryujinx.UI.Common.Resources.Icon_XCI.png");
             _ncaIcon = GetResourceBytes("Ryujinx.UI.Common.Resources.Icon_NCA.png");
@@ -100,7 +116,7 @@ namespace Ryujinx.UI.App.Common
             return data;
         }
 
-        /// <exception cref="MissingKeyException">The configured key set is missing a key.</exception>
+        /// <exception cref="LibHac.Common.Keys.MissingKeyException">The configured key set is missing a key.</exception>
         /// <exception cref="InvalidDataException">The NCA header could not be decrypted.</exception>
         /// <exception cref="NotSupportedException">The NCA version is not supported.</exception>
         /// <exception cref="HorizonResultException">An error occured while reading PFS data.</exception>
@@ -176,7 +192,7 @@ namespace Ryujinx.UI.App.Common
             return null;
         }
 
-        /// <exception cref="MissingKeyException">The configured key set is missing a key.</exception>
+        /// <exception cref="LibHac.Common.Keys.MissingKeyException">The configured key set is missing a key.</exception>
         /// <exception cref="InvalidDataException">The NCA header could not be decrypted.</exception>
         /// <exception cref="NotSupportedException">The NCA version is not supported.</exception>
         /// <exception cref="HorizonResultException">An error occured while reading PFS data.</exception>
@@ -474,6 +490,148 @@ namespace Ryujinx.UI.App.Common
             return true;
         }
 
+        public bool TryGetDownloadableContentFromFile(string filePath, out List<DownloadableContentModel> titleUpdates)
+        {
+            titleUpdates = [];
+
+            try
+            {
+                string extension = Path.GetExtension(filePath).ToLower();
+
+                using FileStream file = new(filePath, FileMode.Open, FileAccess.Read);
+
+                switch (extension)
+                {
+                    case ".xci":
+                    case ".nsp":
+                        {
+                            IntegrityCheckLevel checkLevel = ConfigurationState.Instance.System.EnableFsIntegrityChecks
+                                ? IntegrityCheckLevel.ErrorOnInvalid
+                                : IntegrityCheckLevel.None;
+
+                            using IFileSystem pfs = PartitionFileSystemUtils.OpenApplicationFileSystem(filePath, _virtualFileSystem);
+
+                            foreach (DirectoryEntryEx fileEntry in pfs.EnumerateEntries("/", "*.nca"))
+                            {
+                                using var ncaFile = new UniqueRef<IFile>();
+
+                                pfs.OpenFile(ref ncaFile.Ref, fileEntry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
+
+                                Nca nca = TryOpenNca(ncaFile.Get.AsStorage());
+                                if (nca == null)
+                                {
+                                    continue;
+                                }
+
+                                if (nca.Header.ContentType == NcaContentType.PublicData)
+                                {
+                                    titleUpdates.Add(new DownloadableContentModel(nca.Header.TitleId, filePath, fileEntry.FullPath));
+                                }
+                            }
+
+                            return titleUpdates.Count != 0;
+                        }
+                }
+            }
+            catch (MissingKeyException exception)
+            {
+                Logger.Warning?.Print(LogClass.Application, $"Your key set is missing a key with the name: {exception.Name}");
+            }
+            catch (InvalidDataException)
+            {
+                Logger.Warning?.Print(LogClass.Application, $"The header key is incorrect or missing and therefore the NCA header content type check has failed. Errored File: {filePath}");
+            }
+            catch (IOException exception)
+            {
+                Logger.Warning?.Print(LogClass.Application, exception.Message);
+            }
+            catch (Exception exception)
+            {
+                Logger.Warning?.Print(LogClass.Application, $"The file encountered was not of a valid type. File: '{filePath}' Error: {exception}");
+            }
+
+            return false;
+        }
+
+        public bool TryGetTitleUpdatesFromFile(string filePath, out List<TitleUpdateModel> titleUpdates)
+        {
+            titleUpdates = [];
+
+            try
+            {
+                string extension = Path.GetExtension(filePath).ToLower();
+
+                using FileStream file = new(filePath, FileMode.Open, FileAccess.Read);
+
+                switch (extension)
+                {
+                    case ".xci":
+                    case ".nsp":
+                        {
+                            IntegrityCheckLevel checkLevel = ConfigurationState.Instance.System.EnableFsIntegrityChecks
+                                ? IntegrityCheckLevel.ErrorOnInvalid
+                                : IntegrityCheckLevel.None;
+
+                            using IFileSystem pfs =
+                                PartitionFileSystemUtils.OpenApplicationFileSystem(filePath, _virtualFileSystem);
+
+                            Dictionary<ulong, ContentMetaData> updates =
+                                pfs.GetContentData(ContentMetaType.Patch, _virtualFileSystem, checkLevel);
+
+                            if (updates.Count == 0)
+                            {
+                                return false;
+                            }
+
+                            foreach ((_, ContentMetaData content) in updates)
+                            {
+                                Nca patchNca = content.GetNcaByType(_virtualFileSystem.KeySet, ContentType.Program);
+                                Nca controlNca = content.GetNcaByType(_virtualFileSystem.KeySet, ContentType.Control);
+
+                                if (controlNca != null && patchNca != null)
+                                {
+                                    ApplicationControlProperty controlData = new();
+
+                                    using UniqueRef<IFile> nacpFile = new();
+
+                                    controlNca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.None)
+                                        .OpenFile(ref nacpFile.Ref, "/control.nacp".ToU8Span(), OpenMode.Read)
+                                        .ThrowIfFailure();
+                                    nacpFile.Get.Read(out _, 0, SpanHelpers.AsByteSpan(ref controlData),
+                                        ReadOption.None).ThrowIfFailure();
+
+                                    var displayVersion = controlData.DisplayVersionString.ToString();
+                                    var update = new TitleUpdateModel(content.ApplicationId, content.Version.Version,
+                                        displayVersion, filePath);
+
+                                    titleUpdates.Add(update);
+                                }
+                            }
+
+                            return true;
+                        }
+                }
+            }
+            catch (MissingKeyException exception)
+            {
+                Logger.Warning?.Print(LogClass.Application, $"Your key set is missing a key with the name: {exception.Name}");
+            }
+            catch (InvalidDataException)
+            {
+                Logger.Warning?.Print(LogClass.Application, $"The header key is incorrect or missing and therefore the NCA header content type check has failed. Errored File: {filePath}");
+            }
+            catch (IOException exception)
+            {
+                Logger.Warning?.Print(LogClass.Application, exception.Message);
+            }
+            catch (Exception exception)
+            {
+                Logger.Warning?.Print(LogClass.Application, $"The file encountered was not of a valid type. File: '{filePath}' Error: {exception}");
+            }
+
+            return false;
+        }
+
         public void CancelLoading()
         {
             _cancellationToken?.Cancel();
@@ -493,6 +651,7 @@ namespace Ryujinx.UI.App.Common
             int numApplicationsLoaded = 0;
 
             _cancellationToken = new CancellationTokenSource();
+            _applications.Clear();
 
             // Builds the applications list with paths to found applications
             List<string> applicationPaths = new();
@@ -524,12 +683,12 @@ namespace Ryujinx.UI.App.Common
                         IEnumerable<string> files = Directory.EnumerateFiles(appDir, "*", options).Where(file =>
                         {
                             return
-                            (Path.GetExtension(file).ToLower() is ".nsp" && ConfigurationState.Instance.UI.ShownFileTypes.NSP.Value) ||
+                                (Path.GetExtension(file).ToLower() is ".nsp" && ConfigurationState.Instance.UI.ShownFileTypes.NSP.Value) ||
-                            (Path.GetExtension(file).ToLower() is ".pfs0" && ConfigurationState.Instance.UI.ShownFileTypes.PFS0.Value) ||
+                                (Path.GetExtension(file).ToLower() is ".pfs0" && ConfigurationState.Instance.UI.ShownFileTypes.PFS0.Value) ||
-                            (Path.GetExtension(file).ToLower() is ".xci" && ConfigurationState.Instance.UI.ShownFileTypes.XCI.Value) ||
+                                (Path.GetExtension(file).ToLower() is ".xci" && ConfigurationState.Instance.UI.ShownFileTypes.XCI.Value) ||
-                            (Path.GetExtension(file).ToLower() is ".nca" && ConfigurationState.Instance.UI.ShownFileTypes.NCA.Value) ||
+                                (Path.GetExtension(file).ToLower() is ".nca" && ConfigurationState.Instance.UI.ShownFileTypes.NCA.Value) ||
-                            (Path.GetExtension(file).ToLower() is ".nro" && ConfigurationState.Instance.UI.ShownFileTypes.NRO.Value) ||
+                                (Path.GetExtension(file).ToLower() is ".nro" && ConfigurationState.Instance.UI.ShownFileTypes.NRO.Value) ||
-                            (Path.GetExtension(file).ToLower() is ".nso" && ConfigurationState.Instance.UI.ShownFileTypes.NSO.Value);
+                                (Path.GetExtension(file).ToLower() is ".nso" && ConfigurationState.Instance.UI.ShownFileTypes.NSO.Value);
                         });
 
                         foreach (string app in files)
@@ -570,13 +729,19 @@ namespace Ryujinx.UI.App.Common
 
                     if (TryGetApplicationsFromFile(applicationPath, out List<ApplicationData> applications))
                     {
-                        foreach (var application in applications)
+                        _applications.Edit(it =>
                         {
-                            OnApplicationAdded(new ApplicationAddedEventArgs
+                            foreach (var application in applications)
                             {
-                                AppData = application,
+                                it.AddOrUpdate(application);
-                            });
+                                LoadDlcForApplication(application);
-                        }
+                                if (LoadTitleUpdatesForApplication(application))
+                                {
+                                    // Trigger a reload of the version data
+                                    RefreshApplicationInfo(application.IdBase);
+                                }
+                            }
+                        });
 
                         if (applications.Count > 1)
                         {
@@ -610,9 +775,236 @@ namespace Ryujinx.UI.App.Common
             }
         }
 
-        protected void OnApplicationAdded(ApplicationAddedEventArgs e)
+        // Replace the currently stored DLC state for the game with the provided DLC state.
+        public void SaveDownloadableContentsForGame(ApplicationData application, List<(DownloadableContentModel, bool IsEnabled)> dlcs)
         {
-            ApplicationAdded?.Invoke(null, e);
+            _downloadableContents.Edit(it =>
+            {
+                DownloadableContentsHelper.SaveDownloadableContentsJson(_virtualFileSystem, application.IdBase, dlcs);
+
+                it.Remove(it.Items.Where(item => item.Dlc.TitleIdBase == application.IdBase));
+                it.AddOrUpdate(dlcs);
+            });
+        }
+
+        // Replace the currently stored update state for the game with the provided update state.
+        public void SaveTitleUpdatesForGame(ApplicationData application, List<(TitleUpdateModel, bool IsSelected)> updates)
+        {
+            _titleUpdates.Edit(it =>
+            {
+                TitleUpdatesHelper.SaveTitleUpdatesJson(_virtualFileSystem, application.IdBase, updates);
+
+                it.Remove(it.Items.Where(item => item.TitleUpdate.TitleIdBase == application.IdBase));
+                it.AddOrUpdate(updates);
+                RefreshApplicationInfo(application.IdBase);
+            });
+        }
+
+        // Searches the provided directories for DLC NSP files that are _valid for the currently detected games in the
+        // library_, and then enables those DLC.
+        public int AutoLoadDownloadableContents(List<string> appDirs)
+        {
+            _cancellationToken = new CancellationTokenSource();
+
+            List<string> dlcPaths = new();
+            int newDlcLoaded = 0;
+
+            try
+            {
+                foreach (string appDir in appDirs)
+                {
+                    if (_cancellationToken.Token.IsCancellationRequested)
+                    {
+                        return newDlcLoaded;
+                    }
+
+                    if (!Directory.Exists(appDir))
+                    {
+                        Logger.Warning?.Print(LogClass.Application,
+                            $"The specified autoload directory \"{appDir}\" does not exist.");
+
+                        continue;
+                    }
+
+                    try
+                    {
+                        EnumerationOptions options = new()
+                        {
+                            RecurseSubdirectories = true,
+                            IgnoreInaccessible = false,
+                        };
+
+                        IEnumerable<string> files = Directory.EnumerateFiles(appDir, "*", options).Where(
+                            file => Path.GetExtension(file).ToLower() is ".nsp");
+
+                        foreach (string app in files)
+                        {
+                            if (_cancellationToken.Token.IsCancellationRequested)
+                            {
+                                return newDlcLoaded;
+                            }
+
+                            var fileInfo = new FileInfo(app);
+
+                            try
+                            {
+                                var fullPath = fileInfo.ResolveLinkTarget(true)?.FullName ?? fileInfo.FullName;
+
+                                dlcPaths.Add(fullPath);
+                            }
+                            catch (IOException exception)
+                            {
+                                Logger.Warning?.Print(LogClass.Application,
+                                    $"Failed to resolve the full path to file: \"{app}\" Error: {exception}");
+                            }
+                        }
+                    }
+                    catch (UnauthorizedAccessException)
+                    {
+                        Logger.Warning?.Print(LogClass.Application,
+                            $"Failed to get access to directory: \"{appDir}\"");
+                    }
+                }
+
+                var appIdLookup = Applications.Items.Select(it => it.IdBase).ToHashSet();
+
+                foreach (string dlcPath in dlcPaths)
+                {
+                    if (_cancellationToken.Token.IsCancellationRequested)
+                    {
+                        return newDlcLoaded;
+                    }
+
+                    if (TryGetDownloadableContentFromFile(dlcPath, out var foundDlcs))
+                    {
+                        foreach (var dlc in foundDlcs.Where(it => appIdLookup.Contains(it.TitleIdBase)))
+                        {
+                            if (!_downloadableContents.Lookup(dlc).HasValue)
+                            {
+                                _downloadableContents.AddOrUpdate((dlc, true));
+                                SaveDownloadableContentsForGame(dlc.TitleIdBase);
+                                newDlcLoaded++;
+                            }
+                        }
+                    }
+                }
+            }
+            finally
+            {
+                _cancellationToken.Dispose();
+                _cancellationToken = null;
+            }
+
+            return newDlcLoaded;
+        }
+
+        // Searches the provided directories for update NSP files that are _valid for the currently detected games in the
+        // library_, and then applies those updates. If a newly-detected update is a newer version than the currently
+        // selected update (or if no update is currently selected), then that update will be selected.
+        public int AutoLoadTitleUpdates(List<string> appDirs)
+        {
+            _cancellationToken = new CancellationTokenSource();
+
+            List<string> updatePaths = new();
+            int numUpdatesLoaded = 0;
+
+            try
+            {
+                foreach (string appDir in appDirs)
+                {
+                    if (_cancellationToken.Token.IsCancellationRequested)
+                    {
+                        return numUpdatesLoaded;
+                    }
+
+                    if (!Directory.Exists(appDir))
+                    {
+                        Logger.Warning?.Print(LogClass.Application,
+                            $"The specified autoload directory \"{appDir}\" does not exist.");
+
+                        continue;
+                    }
+
+                    try
+                    {
+                        EnumerationOptions options = new()
+                        {
+                            RecurseSubdirectories = true,
+                            IgnoreInaccessible = false,
+                        };
+
+                        IEnumerable<string> files = Directory.EnumerateFiles(appDir, "*", options).Where(
+                            file => Path.GetExtension(file).ToLower() is ".nsp");
+
+                        foreach (string app in files)
+                        {
+                            if (_cancellationToken.Token.IsCancellationRequested)
+                            {
+                                return numUpdatesLoaded;
+                            }
+
+                            var fileInfo = new FileInfo(app);
+
+                            try
+                            {
+                                var fullPath = fileInfo.ResolveLinkTarget(true)?.FullName ?? fileInfo.FullName;
+
+                                updatePaths.Add(fullPath);
+                            }
+                            catch (IOException exception)
+                            {
+                                Logger.Warning?.Print(LogClass.Application,
+                                    $"Failed to resolve the full path to file: \"{app}\" Error: {exception}");
+                            }
+                        }
+                    }
+                    catch (UnauthorizedAccessException)
+                    {
+                        Logger.Warning?.Print(LogClass.Application,
+                            $"Failed to get access to directory: \"{appDir}\"");
+                    }
+                }
+
+                var appIdLookup = Applications.Items.Select(it => it.IdBase).ToHashSet();
+
+                foreach (string updatePath in updatePaths)
+                {
+                    if (_cancellationToken.Token.IsCancellationRequested)
+                    {
+                        return numUpdatesLoaded;
+                    }
+
+                    if (TryGetTitleUpdatesFromFile(updatePath, out var foundUpdates))
+                    {
+                        foreach (var update in foundUpdates.Where(it => appIdLookup.Contains(it.TitleIdBase)))
+                        {
+                            if (!_titleUpdates.Lookup(update).HasValue)
+                            {
+                                var currentlySelected = TitleUpdates.Items.FirstOrOptional(it =>
+                                    it.TitleUpdate.TitleIdBase == update.TitleIdBase && it.IsSelected);
+
+                                var shouldSelect = !currentlySelected.HasValue ||
+                                                   currentlySelected.Value.TitleUpdate.Version < update.Version;
+                                _titleUpdates.AddOrUpdate((update, shouldSelect));
+                                SaveTitleUpdatesForGame(update.TitleIdBase);
+                                numUpdatesLoaded++;
+
+                                if (shouldSelect)
+                                {
+                                    RefreshApplicationInfo(update.TitleIdBase);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            finally
+            {
+                _cancellationToken.Dispose();
+                _cancellationToken = null;
+            }
+
+            return numUpdatesLoaded;
         }
 
         protected void OnApplicationCountUpdated(ApplicationCountUpdatedEventArgs e)
@@ -936,5 +1328,128 @@ namespace Ryujinx.UI.App.Common
 
             return false;
         }
+
+        private Nca TryOpenNca(IStorage ncaStorage)
+        {
+            try
+            {
+                return new Nca(_virtualFileSystem.KeySet, ncaStorage);
+            }
+            catch (Exception) { }
+
+            return null;
+        }
+
+        // Does a two-phase load of DLC. First reading the metadata on disk, then loading anything bundled in the game
+        // file itself
+        private void LoadDlcForApplication(ApplicationData application)
+        {
+            _downloadableContents.Edit(it =>
+            {
+                var savedDlc =
+                    DownloadableContentsHelper.LoadDownloadableContentsJson(_virtualFileSystem, application.IdBase);
+                it.AddOrUpdate(savedDlc);
+
+                if (TryGetDownloadableContentFromFile(application.Path, out var bundledDlc))
+                {
+                    var savedDlcLookup = savedDlc.Select(dlc => dlc.Item1).ToHashSet();
+
+                    bool addedNewDlc = false;
+                    foreach (var dlc in bundledDlc)
+                    {
+                        if (!savedDlcLookup.Contains(dlc))
+                        {
+                            addedNewDlc = true;
+                            it.AddOrUpdate((dlc, true));
+                        }
+                    }
+
+                    if (addedNewDlc)
+                    {
+                        var gameDlcs = it.Items.Where(dlc => dlc.Dlc.TitleIdBase == application.IdBase).ToList();
+                        DownloadableContentsHelper.SaveDownloadableContentsJson(_virtualFileSystem, application.IdBase,
+                            gameDlcs);
+                    }
+                }
+            });
+        }
+
+        // Does a two-phase load of updates. First reading the metadata on disk, then loading anything bundled in the game
+        // file itself
+        private bool LoadTitleUpdatesForApplication(ApplicationData application)
+        {
+            var modifiedVersion = false;
+
+            _titleUpdates.Edit(it =>
+            {
+                var savedUpdates =
+                    TitleUpdatesHelper.LoadTitleUpdatesJson(_virtualFileSystem, application.IdBase);
+                it.AddOrUpdate(savedUpdates);
+
+                var selectedUpdate = savedUpdates.FirstOrOptional(update => update.IsSelected);
+
+                if (TryGetTitleUpdatesFromFile(application.Path, out var bundledUpdates))
+                {
+                    var savedUpdateLookup = savedUpdates.Select(update => update.Item1).ToHashSet();
+
+                    bool addedNewUpdate = false;
+                    foreach (var update in bundledUpdates.OrderByDescending(bundled => bundled.Version))
+                    {
+                        if (!savedUpdateLookup.Contains(update))
+                        {
+                            bool shouldSelect = false;
+                            if (!selectedUpdate.HasValue || selectedUpdate.Value.Item1.Version < update.Version)
+                            {
+                                shouldSelect = true;
+                                selectedUpdate = Optional<(TitleUpdateModel, bool IsSelected)>.Create((update, true));
+                            }
+
+                            modifiedVersion = modifiedVersion || shouldSelect;
+                            it.AddOrUpdate((update, shouldSelect));
+
+                            addedNewUpdate = true;
+                        }
+                    }
+
+                    if (addedNewUpdate)
+                    {
+                        var gameUpdates = it.Items.Where(update => update.TitleUpdate.TitleIdBase == application.IdBase).ToList();
+                        TitleUpdatesHelper.SaveTitleUpdatesJson(_virtualFileSystem, application.IdBase, gameUpdates);
+                    }
+                }
+            });
+
+            return modifiedVersion;
+        }
+
+        // Save the _currently tracked_ DLC state for the game
+        private void SaveDownloadableContentsForGame(ulong titleIdBase)
+        {
+            var dlcs = DownloadableContents.Items.Where(dlc => dlc.Dlc.TitleIdBase == titleIdBase).ToList();
+            DownloadableContentsHelper.SaveDownloadableContentsJson(_virtualFileSystem, titleIdBase, dlcs);
+        }
+
+        // Save the _currently tracked_ update state for the game
+        private void SaveTitleUpdatesForGame(ulong titleIdBase)
+        {
+            var updates = TitleUpdates.Items.Where(update => update.TitleUpdate.TitleIdBase == titleIdBase).ToList();
+            TitleUpdatesHelper.SaveTitleUpdatesJson(_virtualFileSystem, titleIdBase, updates);
+        }
+
+        // ApplicationData isnt live-updating (e.g. when an update gets applied) and so this is meant to trigger a refresh
+        // of its state
+        private void RefreshApplicationInfo(ulong appIdBase)
+        {
+            var application = _applications.Lookup(appIdBase);
+
+            if (!application.HasValue)
+                return;
+
+            if (!TryGetApplicationsFromFile(application.Value.Path, out List<ApplicationData> newApplications))
+                return;
+
+            var newApplication = newApplications.First(it => it.IdBase == appIdBase);
+            _applications.AddOrUpdate(newApplication);
+        }
     }
 }

src/Ryujinx.UI.Common/Configuration/ConfigurationFileFormat.cs

@@ -15,7 +15,7 @@ namespace Ryujinx.UI.Common.Configuration
         /// <summary>
         /// The current version of the file format
         /// </summary>
-        public const int CurrentVersion = 51;
+        public const int CurrentVersion = 52;
 
         /// <summary>
         /// Version of the configuration file format
@@ -262,6 +262,11 @@ namespace Ryujinx.UI.Common.Configuration
         /// </summary>
         public List<string> GameDirs { get; set; }
 
+        /// <summary>
+        /// A list of directories containing DLC/updates the user wants to autoload during library refreshes
+        /// </summary>
+        public List<string> AutoloadDirs { get; set; }
+
         /// <summary>
         /// A list of file types to be hidden in the games List
         /// </summary>

src/Ryujinx.UI.Common/Configuration/ConfigurationState.cs

@@ -122,6 +122,11 @@ namespace Ryujinx.UI.Common.Configuration
             /// </summary>
             public ReactiveObject<List<string>> GameDirs { get; private set; }
 
+            /// <summary>
+            /// A list of directories containing DLC/updates the user wants to autoload during library refreshes
+            /// </summary>
+            public ReactiveObject<List<string>> AutoloadDirs { get; private set; }
+
             /// <summary>
             /// A list of file types to be hidden in the games List
             /// </summary>
@@ -192,6 +197,7 @@ namespace Ryujinx.UI.Common.Configuration
                 GuiColumns = new Columns();
                 ColumnSort = new ColumnSortSettings();
                 GameDirs = new ReactiveObject<List<string>>();
+                AutoloadDirs = new ReactiveObject<List<string>>();
                 ShownFileTypes = new ShownFileTypeSettings();
                 WindowStartup = new WindowStartupSettings();
                 EnableCustomTheme = new ReactiveObject<bool>();
@@ -728,6 +734,7 @@ namespace Ryujinx.UI.Common.Configuration
                     SortAscending = UI.ColumnSort.SortAscending,
                 },
                 GameDirs = UI.GameDirs,
+                AutoloadDirs = UI.AutoloadDirs,
                 ShownFileTypes = new ShownFileTypes
                 {
                     NSP = UI.ShownFileTypes.NSP,
@@ -836,6 +843,7 @@ namespace Ryujinx.UI.Common.Configuration
             UI.ColumnSort.SortColumnId.Value = 0;
             UI.ColumnSort.SortAscending.Value = false;
             UI.GameDirs.Value = new List<string>();
+            UI.AutoloadDirs.Value = new List<string>();
             UI.ShownFileTypes.NSP.Value = true;
             UI.ShownFileTypes.PFS0.Value = true;
             UI.ShownFileTypes.XCI.Value = true;
@@ -1477,6 +1485,15 @@ namespace Ryujinx.UI.Common.Configuration
                 configurationFileUpdated = true;
             }
 
+            if (configurationFileFormat.Version < 52)
+            {
+                Ryujinx.Common.Logging.Logger.Warning?.Print(LogClass.Application, $"Outdated configuration version {configurationFileFormat.Version}, migrating to version 52.");
+
+                configurationFileFormat.AutoloadDirs = new();
+
+                configurationFileUpdated = true;
+            }
+
             Logger.EnableFileLog.Value = configurationFileFormat.EnableFileLog;
             Graphics.ResScale.Value = configurationFileFormat.ResScale;
             Graphics.ResScaleCustom.Value = configurationFileFormat.ResScaleCustom;
@@ -1538,6 +1555,7 @@ namespace Ryujinx.UI.Common.Configuration
             UI.ColumnSort.SortColumnId.Value = configurationFileFormat.ColumnSort.SortColumnId;
             UI.ColumnSort.SortAscending.Value = configurationFileFormat.ColumnSort.SortAscending;
             UI.GameDirs.Value = configurationFileFormat.GameDirs;
+            UI.AutoloadDirs.Value = configurationFileFormat.AutoloadDirs;
             UI.ShownFileTypes.NSP.Value = configurationFileFormat.ShownFileTypes.NSP;
             UI.ShownFileTypes.PFS0.Value = configurationFileFormat.ShownFileTypes.PFS0;
             UI.ShownFileTypes.XCI.Value = configurationFileFormat.ShownFileTypes.XCI;

src/Ryujinx.UI.Common/Helper/DownloadableContentsHelper.cs

@@ -0,0 +1,135 @@
+using LibHac.Common;
+using LibHac.Fs;
+using LibHac.Fs.Fsa;
+using LibHac.Tools.FsSystem;
+using LibHac.Tools.FsSystem.NcaUtils;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Logging;
+using Ryujinx.Common.Utilities;
+using Ryujinx.HLE.FileSystem;
+using Ryujinx.HLE.Utilities;
+using Ryujinx.UI.Common.Models;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Path = System.IO.Path;
+
+namespace Ryujinx.UI.Common.Helper
+{
+    public static class DownloadableContentsHelper
+    {
+        private static readonly DownloadableContentJsonSerializerContext _serializerContext = new(JsonHelper.GetDefaultSerializerOptions());
+
+        public static List<(DownloadableContentModel, bool IsEnabled)> LoadDownloadableContentsJson(VirtualFileSystem vfs, ulong applicationIdBase)
+        {
+            var downloadableContentJsonPath = PathToGameDLCJson(applicationIdBase);
+
+            if (!File.Exists(downloadableContentJsonPath))
+            {
+                return [];
+            }
+
+            try
+            {
+                var downloadableContentContainerList = JsonHelper.DeserializeFromFile(downloadableContentJsonPath,
+                    _serializerContext.ListDownloadableContentContainer);
+                return LoadDownloadableContents(vfs, downloadableContentContainerList);
+            }
+            catch
+            {
+                Logger.Error?.Print(LogClass.Configuration, "Downloadable Content JSON failed to deserialize.");
+                return [];
+            }
+        }
+
+        public static void SaveDownloadableContentsJson(VirtualFileSystem vfs, ulong applicationIdBase, List<(DownloadableContentModel, bool IsEnabled)> dlcs)
+        {
+            DownloadableContentContainer container = default;
+            List<DownloadableContentContainer> downloadableContentContainerList = new();
+
+            foreach ((DownloadableContentModel dlc, bool isEnabled) in dlcs)
+            {
+                if (container.ContainerPath != dlc.ContainerPath)
+                {
+                    if (!string.IsNullOrWhiteSpace(container.ContainerPath))
+                    {
+                        downloadableContentContainerList.Add(container);
+                    }
+
+                    container = new DownloadableContentContainer
+                    {
+                        ContainerPath = dlc.ContainerPath,
+                        DownloadableContentNcaList = [],
+                    };
+                }
+
+                container.DownloadableContentNcaList.Add(new DownloadableContentNca
+                {
+                    Enabled = isEnabled,
+                    TitleId = dlc.TitleId,
+                    FullPath = dlc.FullPath,
+                });
+            }
+
+            if (!string.IsNullOrWhiteSpace(container.ContainerPath))
+            {
+                downloadableContentContainerList.Add(container);
+            }
+
+            var downloadableContentJsonPath = PathToGameDLCJson(applicationIdBase);
+            JsonHelper.SerializeToFile(downloadableContentJsonPath, downloadableContentContainerList, _serializerContext.ListDownloadableContentContainer);
+        }
+
+        private static List<(DownloadableContentModel, bool IsEnabled)> LoadDownloadableContents(VirtualFileSystem vfs, List<DownloadableContentContainer> downloadableContentContainers)
+        {
+            var result = new List<(DownloadableContentModel, bool IsEnabled)>();
+
+            foreach (DownloadableContentContainer downloadableContentContainer in downloadableContentContainers)
+            {
+                if (!File.Exists(downloadableContentContainer.ContainerPath))
+                {
+                    continue;
+                }
+
+                using IFileSystem partitionFileSystem = PartitionFileSystemUtils.OpenApplicationFileSystem(downloadableContentContainer.ContainerPath, vfs);
+
+                foreach (DownloadableContentNca downloadableContentNca in downloadableContentContainer.DownloadableContentNcaList)
+                {
+                    using UniqueRef<IFile> ncaFile = new();
+
+                    partitionFileSystem.OpenFile(ref ncaFile.Ref, downloadableContentNca.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
+
+                    Nca nca = TryOpenNca(vfs, ncaFile.Get.AsStorage());
+                    if (nca == null)
+                    {
+                        continue;
+                    }
+
+                    var content = new DownloadableContentModel(nca.Header.TitleId,
+                        downloadableContentContainer.ContainerPath,
+                        downloadableContentNca.FullPath);
+
+                    result.Add((content, downloadableContentNca.Enabled));
+                }
+            }
+
+            return result;
+        }
+
+        private static Nca TryOpenNca(VirtualFileSystem vfs, IStorage ncaStorage)
+        {
+            try
+            {
+                return new Nca(vfs.KeySet, ncaStorage);
+            }
+            catch (Exception) { }
+
+            return null;
+        }
+
+        private static string PathToGameDLCJson(ulong applicationIdBase)
+        {
+            return Path.Combine(AppDataManager.GamesDirPath, applicationIdBase.ToString("x16"), "dlc.json");
+        }
+    }
+}

src/Ryujinx.UI.Common/Helper/TitleUpdatesHelper.cs

@@ -0,0 +1,162 @@
+using LibHac.Common;
+using LibHac.Common.Keys;
+using LibHac.Fs;
+using LibHac.Fs.Fsa;
+using LibHac.Ncm;
+using LibHac.Ns;
+using LibHac.Tools.FsSystem;
+using LibHac.Tools.FsSystem.NcaUtils;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Logging;
+using Ryujinx.Common.Utilities;
+using Ryujinx.HLE.FileSystem;
+using Ryujinx.HLE.Loaders.Processes.Extensions;
+using Ryujinx.HLE.Utilities;
+using Ryujinx.UI.Common.Configuration;
+using Ryujinx.UI.Common.Models;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using ContentType = LibHac.Ncm.ContentType;
+using Path = System.IO.Path;
+using SpanHelpers = LibHac.Common.SpanHelpers;
+using TitleUpdateMetadata = Ryujinx.Common.Configuration.TitleUpdateMetadata;
+
+namespace Ryujinx.UI.Common.Helper
+{
+    public static class TitleUpdatesHelper
+    {
+        private static readonly TitleUpdateMetadataJsonSerializerContext _serializerContext = new(JsonHelper.GetDefaultSerializerOptions());
+
+        public static List<(TitleUpdateModel, bool IsSelected)> LoadTitleUpdatesJson(VirtualFileSystem vfs, ulong applicationIdBase)
+        {
+            var titleUpdatesJsonPath = PathToGameUpdatesJson(applicationIdBase);
+
+            if (!File.Exists(titleUpdatesJsonPath))
+            {
+                return [];
+            }
+
+            try
+            {
+                var titleUpdateWindowData = JsonHelper.DeserializeFromFile(titleUpdatesJsonPath, _serializerContext.TitleUpdateMetadata);
+                return LoadTitleUpdates(vfs, titleUpdateWindowData, applicationIdBase);
+            }
+            catch
+            {
+                Logger.Warning?.Print(LogClass.Application, $"Failed to deserialize title update data for {applicationIdBase:x16} at {titleUpdatesJsonPath}");
+                return [];
+            }
+        }
+
+        public static void SaveTitleUpdatesJson(VirtualFileSystem vfs, ulong applicationIdBase, List<(TitleUpdateModel, bool IsSelected)> updates)
+        {
+            var titleUpdateWindowData = new TitleUpdateMetadata
+            {
+                Selected = "",
+                Paths = [],
+            };
+
+            foreach ((TitleUpdateModel update, bool isSelected) in updates)
+            {
+                titleUpdateWindowData.Paths.Add(update.Path);
+                if (isSelected)
+                {
+                    if (!string.IsNullOrEmpty(titleUpdateWindowData.Selected))
+                    {
+                        Logger.Error?.Print(LogClass.Application,
+                            $"Tried to save two updates as 'IsSelected' for {applicationIdBase:x16}");
+                        return;
+                    }
+
+                    titleUpdateWindowData.Selected = update.Path;
+                }
+            }
+
+            var titleUpdatesJsonPath = PathToGameUpdatesJson(applicationIdBase);
+            JsonHelper.SerializeToFile(titleUpdatesJsonPath, titleUpdateWindowData, _serializerContext.TitleUpdateMetadata);
+        }
+
+        private static List<(TitleUpdateModel, bool IsSelected)> LoadTitleUpdates(VirtualFileSystem vfs, TitleUpdateMetadata titleUpdateMetadata, ulong applicationIdBase)
+        {
+            var result = new List<(TitleUpdateModel, bool IsSelected)>();
+
+            IntegrityCheckLevel checkLevel = ConfigurationState.Instance.System.EnableFsIntegrityChecks
+                ? IntegrityCheckLevel.ErrorOnInvalid
+                : IntegrityCheckLevel.None;
+
+            foreach (string path in titleUpdateMetadata.Paths)
+            {
+                if (!File.Exists(path))
+                {
+                    continue;
+                }
+
+                try
+                {
+                    using IFileSystem pfs = PartitionFileSystemUtils.OpenApplicationFileSystem(path, vfs);
+
+                    Dictionary<ulong, ContentMetaData> updates =
+                        pfs.GetContentData(ContentMetaType.Patch, vfs, checkLevel);
+
+                    Nca patchNca = null;
+                    Nca controlNca = null;
+
+                    if (!updates.TryGetValue(applicationIdBase, out ContentMetaData content))
+                    {
+                        continue;
+                    }
+
+                    patchNca = content.GetNcaByType(vfs.KeySet, ContentType.Program);
+                    controlNca = content.GetNcaByType(vfs.KeySet, ContentType.Control);
+
+                    if (controlNca == null || patchNca == null)
+                    {
+                        continue;
+                    }
+
+                    ApplicationControlProperty controlData = new();
+
+                    using UniqueRef<IFile> nacpFile = new();
+
+                    controlNca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.None)
+                        .OpenFile(ref nacpFile.Ref, "/control.nacp".ToU8Span(), OpenMode.Read).ThrowIfFailure();
+                    nacpFile.Get.Read(out _, 0, SpanHelpers.AsByteSpan(ref controlData), ReadOption.None)
+                        .ThrowIfFailure();
+
+                    var displayVersion = controlData.DisplayVersionString.ToString();
+                    var update = new TitleUpdateModel(content.ApplicationId, content.Version.Version,
+                        displayVersion, path);
+
+                    result.Add((update, path == titleUpdateMetadata.Selected));
+                }
+                catch (MissingKeyException exception)
+                {
+                    Logger.Warning?.Print(LogClass.Application,
+                        $"Your key set is missing a key with the name: {exception.Name}");
+                }
+                catch (InvalidDataException)
+                {
+                    Logger.Warning?.Print(LogClass.Application,
+                        $"The header key is incorrect or missing and therefore the NCA header content type check has failed. Errored File: {path}");
+                }
+                catch (IOException exception)
+                {
+                    Logger.Warning?.Print(LogClass.Application, exception.Message);
+                }
+                catch (Exception exception)
+                {
+                    Logger.Warning?.Print(LogClass.Application,
+                        $"The file encountered was not of a valid type. File: '{path}' Error: {exception}");
+                }
+            }
+
+            return result;
+        }
+
+        private static string PathToGameUpdatesJson(ulong applicationIdBase)
+        {
+            return Path.Combine(AppDataManager.GamesDirPath, applicationIdBase.ToString("x16"), "updates.json");
+        }
+    }
+}

src/Ryujinx.UI.Common/Models/DownloadableContentModel.cs

@@ -0,0 +1,12 @@
+namespace Ryujinx.UI.Common.Models
+{
+    // NOTE: most consuming code relies on this model being value-comparable
+    public record DownloadableContentModel(ulong TitleId, string ContainerPath, string FullPath)
+    {
+        public bool IsBundled { get; } = System.IO.Path.GetExtension(ContainerPath)?.ToLower() == ".xci";
+
+        public string FileName => System.IO.Path.GetFileName(ContainerPath);
+        public string TitleIdStr => TitleId.ToString("x16");
+        public ulong TitleIdBase => TitleId & ~0x1FFFUL;
+    }
+}

src/Ryujinx.UI.Common/Models/TitleUpdateModel.cs

@@ -0,0 +1,11 @@
+namespace Ryujinx.UI.Common.Models
+{
+    // NOTE: most consuming code relies on this model being value-comparable
+    public record TitleUpdateModel(ulong TitleId, ulong Version, string DisplayVersion, string Path)
+    {
+        public bool IsBundled { get; } = System.IO.Path.GetExtension(Path)?.ToLower() == ".xci";
+
+        public string TitleIdStr => TitleId.ToString("x16");
+        public ulong TitleIdBase => TitleId & ~0x1FFFUL;
+    }
+}

src/Ryujinx.UI.Common/Ryujinx.UI.Common.csproj

@@ -56,6 +56,7 @@
 
   <ItemGroup>
     <PackageReference Include="DiscordRichPresence" />
+    <PackageReference Include="DynamicData" />
     <PackageReference Include="securifybv.ShellLink" />
   </ItemGroup>
 

src/Ryujinx/Assets/Locales/en_US.json

@@ -12,6 +12,8 @@
   "MenuBarFileOpenFromFile": "_Load Application From File",
   "MenuBarFileOpenFromFileError": "No applications found in selected file.",
   "MenuBarFileOpenUnpacked": "Load _Unpacked Game",
+  "MenuBarFileLoadDlcFromFolder": "Load DLC From Folder",
+  "MenuBarFileLoadTitleUpdatesFromFolder": "Load Title Updates From Folder",
   "MenuBarFileOpenEmuFolder": "Open Ryujinx Folder",
   "MenuBarFileOpenLogsFolder": "Open Logs Folder",
   "MenuBarFileExit": "_Exit",
@@ -103,6 +105,7 @@
   "SettingsTabGeneralHideCursorOnIdle": "On Idle",
   "SettingsTabGeneralHideCursorAlways": "Always",
   "SettingsTabGeneralGameDirectories": "Game Directories",
+  "SettingsTabGeneralAutoloadDirectories": "Autoload DLC/Updates Directories",
   "SettingsTabGeneralAdd": "Add",
   "SettingsTabGeneralRemove": "Remove",
   "SettingsTabSystem": "System",
@@ -556,6 +559,9 @@
   "AddGameDirBoxTooltip": "Enter a game directory to add to the list",
   "AddGameDirTooltip": "Add a game directory to the list",
   "RemoveGameDirTooltip": "Remove selected game directory",
+  "AddAutoloadDirBoxTooltip": "Enter an autoload directory to add to the list",
+  "AddAutoloadDirTooltip": "Add an autoload directory to the list",
+  "RemoveAutoloadDirTooltip": "Remove selected autoload directory",
   "CustomThemeCheckTooltip": "Use a custom Avalonia theme for the GUI to change the appearance of the emulator menus",
   "CustomThemePathTooltip": "Path to custom GUI theme",
   "CustomThemeBrowseTooltip": "Browse for a custom GUI theme",
@@ -599,6 +605,8 @@
   "DebugLogTooltip": "Prints debug log messages in the console.\n\nOnly use this if specifically instructed by a staff member, as it will make logs difficult to read and worsen emulator performance.",
   "LoadApplicationFileTooltip": "Open a file explorer to choose a Switch compatible file to load",
   "LoadApplicationFolderTooltip": "Open a file explorer to choose a Switch compatible, unpacked application to load",
+  "LoadDlcFromFolderTooltip": "Open a file explorer to choose one or more folders to bulk load DLC from",
+  "LoadTitleUpdatesFromFolderTooltip": "Open a file explorer to choose one or more folders to bulk load title updates from",
   "OpenRyujinxFolderTooltip": "Open Ryujinx filesystem folder",
   "OpenRyujinxLogsTooltip": "Opens the folder where logs are written to",
   "ExitTooltip": "Exit Ryujinx",
@@ -709,9 +717,16 @@
   "DlcWindowTitle": "Manage Downloadable Content for {0} ({1})",
   "ModWindowTitle": "Manage Mods for {0} ({1})",
   "UpdateWindowTitle": "Title Update Manager",
+  "UpdateWindowUpdateAddedMessage": "{0} new update(s) added",
+  "UpdateWindowBundledContentNotice": "Bundled updates cannot be removed, only disabled.",
   "CheatWindowHeading": "Cheats Available for {0} [{1}]",
   "BuildId": "BuildId:",
+  "DlcWindowBundledContentNotice": "Bundled DLC cannot be removed, only disabled.",
   "DlcWindowHeading": "{0} Downloadable Content(s)",
+  "DlcWindowDlcAddedMessage": "{0} new downloadable content(s) added",
+  "AutoloadDlcAddedMessage": "{0} new downloadable content(s) added",
+  "AutoloadUpdateAddedMessage": "{0} new update(s) added",
+  "AutoloadDlcAndUpdateAddedMessage": "{0} new downloadable content(s) and {1} new update(s) added",
   "ModWindowHeading": "{0} Mod(s)",
   "UserProfilesEditProfile": "Edit Selected",
   "Cancel": "Cancel",

src/Ryujinx/UI/Controls/ApplicationContextMenu.axaml.cs

@@ -86,7 +86,7 @@ namespace Ryujinx.Ava.UI.Controls
 
             if (viewModel?.SelectedApplication != null)
             {
-                await TitleUpdateWindow.Show(viewModel.VirtualFileSystem, viewModel.SelectedApplication);
+                await TitleUpdateWindow.Show(viewModel.ApplicationLibrary, viewModel.SelectedApplication);
             }
         }
 
@@ -96,7 +96,7 @@ namespace Ryujinx.Ava.UI.Controls
 
             if (viewModel?.SelectedApplication != null)
             {
-                await DownloadableContentManagerWindow.Show(viewModel.VirtualFileSystem, viewModel.SelectedApplication);
+                await DownloadableContentManagerWindow.Show(viewModel.ApplicationLibrary, viewModel.SelectedApplication);
             }
         }
 

src/Ryujinx/UI/Helpers/DownloadableContentLabelConverter.cs

@@ -0,0 +1,42 @@
+using Avalonia;
+using Avalonia.Data;
+using Avalonia.Data.Converters;
+using Ryujinx.Ava.Common.Locale;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    internal class DownloadableContentLabelConverter : IMultiValueConverter
+    {
+        public static DownloadableContentLabelConverter Instance = new();
+
+        public object Convert(IList<object> values, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (values.Any(it => it is UnsetValueType))
+            {
+                return BindingOperations.DoNothing;
+            }
+
+            if (values.Count != 2 || !targetType.IsAssignableFrom(typeof(string)))
+            {
+                return null;
+            }
+
+            if (values is not [string label, bool isBundled])
+            {
+                return null;
+            }
+
+            return isBundled ? $"{LocaleManager.Instance[LocaleKeys.TitleBundledDlcLabel]} {label}" : label;
+        }
+
+        public object[] ConvertBack(object[] values, Type[] targetTypes, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+
+    }
+}

src/Ryujinx/UI/Helpers/Glyph.cs

@@ -5,5 +5,6 @@ namespace Ryujinx.Ava.UI.Helpers
         List,
         Grid,
         Chip,
+        Important,
     }
 }

src/Ryujinx/UI/Helpers/GlyphValueConverter.cs

@@ -14,6 +14,7 @@ namespace Ryujinx.Ava.UI.Helpers
             { Glyph.List, char.ConvertFromUtf32((int)Symbol.List) },
             { Glyph.Grid, char.ConvertFromUtf32((int)Symbol.ViewAll) },
             { Glyph.Chip, char.ConvertFromUtf32(59748) },
+            { Glyph.Important, char.ConvertFromUtf32((int)Symbol.Important) },
         };
 
         public GlyphValueConverter(string key)

src/Ryujinx/UI/Helpers/TitleUpdateLabelConverter.cs

@@ -0,0 +1,42 @@
+using Avalonia;
+using Avalonia.Data;
+using Avalonia.Data.Converters;
+using Ryujinx.Ava.Common.Locale;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+
+namespace Ryujinx.Ava.UI.Helpers
+{
+    internal class TitleUpdateLabelConverter : IMultiValueConverter
+    {
+        public static TitleUpdateLabelConverter Instance = new();
+
+        public object Convert(IList<object> values, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (values.Any(it => it is UnsetValueType))
+            {
+                return BindingOperations.DoNothing;
+            }
+
+            if (values.Count != 2 || !targetType.IsAssignableFrom(typeof(string)))
+            {
+                return null;
+            }
+
+            if (values is not [string label, bool isBundled])
+            {
+                return null;
+            }
+
+            var key = isBundled ? LocaleKeys.TitleBundledUpdateVersionLabel : LocaleKeys.TitleUpdateVersionLabel;
+            return LocaleManager.Instance.UpdateAndGetDynamicValue(key, label);
+        }
+
+        public object[] ConvertBack(object[] values, Type[] targetTypes, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

src/Ryujinx/UI/Models/DownloadableContentModel.cs

@@ -1,39 +0,0 @@
-using Ryujinx.Ava.Common.Locale;
-using Ryujinx.Ava.UI.ViewModels;
-using System.IO;
-
-namespace Ryujinx.Ava.UI.Models
-{
-    public class DownloadableContentModel : BaseModel
-    {
-        private bool _enabled;
-
-        public bool Enabled
-        {
-            get => _enabled;
-            set
-            {
-                _enabled = value;
-
-                OnPropertyChanged();
-            }
-        }
-
-        public string TitleId { get; }
-        public string ContainerPath { get; }
-        public string FullPath { get; }
-
-        public string FileName => Path.GetFileName(ContainerPath);
-
-        public string Label =>
-            Path.GetExtension(FileName)?.ToLower() == ".xci" ? $"{LocaleManager.Instance[LocaleKeys.TitleBundledDlcLabel]} {FileName}" : FileName;
-
-        public DownloadableContentModel(string titleId, string containerPath, string fullPath, bool enabled)
-        {
-            TitleId = titleId;
-            ContainerPath = containerPath;
-            FullPath = fullPath;
-            Enabled = enabled;
-        }
-    }
-}

src/Ryujinx/UI/Models/TitleUpdateModel.cs

@@ -1,21 +0,0 @@
-using Ryujinx.Ava.Common.Locale;
-
-namespace Ryujinx.Ava.UI.Models
-{
-    public class TitleUpdateModel
-    {
-        public uint Version { get; }
-        public string Path { get; }
-        public string Label { get; }
-
-        public TitleUpdateModel(uint version, string displayVersion, string path)
-        {
-            Version = version;
-            Label = LocaleManager.Instance.UpdateAndGetDynamicValue(
-                System.IO.Path.GetExtension(path)?.ToLower() == ".xci" ? LocaleKeys.TitleBundledUpdateVersionLabel : LocaleKeys.TitleUpdateVersionLabel,
-                displayVersion
-            );
-            Path = path;
-        }
-    }
-}

src/Ryujinx/UI/ViewModels/DownloadableContentManagerViewModel.cs

@@ -3,47 +3,32 @@ using Avalonia.Controls.ApplicationLifetimes;
 using Avalonia.Platform.Storage;
 using Avalonia.Threading;
 using DynamicData;
-using LibHac.Common;
+using FluentAvalonia.UI.Controls;
-using LibHac.Fs;
-using LibHac.Fs.Fsa;
-using LibHac.Tools.Fs;
-using LibHac.Tools.FsSystem;
-using LibHac.Tools.FsSystem.NcaUtils;
 using Ryujinx.Ava.Common.Locale;
 using Ryujinx.Ava.UI.Helpers;
-using Ryujinx.Ava.UI.Models;
-using Ryujinx.Common.Configuration;
-using Ryujinx.Common.Logging;
-using Ryujinx.Common.Utilities;
 using Ryujinx.HLE.FileSystem;
-using Ryujinx.HLE.Loaders.Processes.Extensions;
-using Ryujinx.HLE.Utilities;
 using Ryujinx.UI.App.Common;
-using System;
+using Ryujinx.UI.Common.Models;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
 using Application = Avalonia.Application;
-using Path = System.IO.Path;
 
 namespace Ryujinx.Ava.UI.ViewModels
 {
     public class DownloadableContentManagerViewModel : BaseModel
     {
-        private readonly List<DownloadableContentContainer> _downloadableContentContainerList;
+        private readonly ApplicationLibrary _applicationLibrary;
-        private readonly string _downloadableContentJsonPath;
-
-        private readonly VirtualFileSystem _virtualFileSystem;
         private AvaloniaList<DownloadableContentModel> _downloadableContents = new();
-        private AvaloniaList<DownloadableContentModel> _views = new();
         private AvaloniaList<DownloadableContentModel> _selectedDownloadableContents = new();
+        private AvaloniaList<DownloadableContentModel> _views = new();
+        private bool _showBundledContentNotice = false;
 
         private string _search;
         private readonly ApplicationData _applicationData;
         private readonly IStorageProvider _storageProvider;
 
-        private static readonly DownloadableContentJsonSerializerContext _serializerContext = new(JsonHelper.GetDefaultSerializerOptions());
-
         public AvaloniaList<DownloadableContentModel> DownloadableContents
         {
             get => _downloadableContents;
@@ -92,9 +77,19 @@ namespace Ryujinx.Ava.UI.ViewModels
             get => string.Format(LocaleManager.Instance[LocaleKeys.DlcWindowHeading], DownloadableContents.Count);
         }
 
-        public DownloadableContentManagerViewModel(VirtualFileSystem virtualFileSystem, ApplicationData applicationData)
+        public bool ShowBundledContentNotice
         {
-            _virtualFileSystem = virtualFileSystem;
+            get => _showBundledContentNotice;
+            set
+            {
+                _showBundledContentNotice = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public DownloadableContentManagerViewModel(ApplicationLibrary applicationLibrary, ApplicationData applicationData)
+        {
+            _applicationLibrary = applicationLibrary;
 
             _applicationData = applicationData;
 
@@ -103,109 +98,68 @@ namespace Ryujinx.Ava.UI.ViewModels
                 _storageProvider = desktop.MainWindow.StorageProvider;
             }
 
-            _downloadableContentJsonPath = Path.Combine(AppDataManager.GamesDirPath, applicationData.IdBaseString, "dlc.json");
-
-            if (!File.Exists(_downloadableContentJsonPath))
-            {
-                _downloadableContentContainerList = new List<DownloadableContentContainer>();
-
-                Save();
-            }
-
-            try
-            {
-                _downloadableContentContainerList = JsonHelper.DeserializeFromFile(_downloadableContentJsonPath, _serializerContext.ListDownloadableContentContainer);
-            }
-            catch
-            {
-                Logger.Error?.Print(LogClass.Configuration, "Downloadable Content JSON failed to deserialize.");
-                _downloadableContentContainerList = new List<DownloadableContentContainer>();
-            }
-
             LoadDownloadableContents();
         }
 
         private void LoadDownloadableContents()
         {
-            foreach (DownloadableContentContainer downloadableContentContainer in _downloadableContentContainerList)
+            var dlcs = _applicationLibrary.DownloadableContents.Items
+                .Where(it => it.Dlc.TitleIdBase == _applicationData.IdBase);
+
+            bool hasBundledContent = false;
+            foreach ((DownloadableContentModel dlc, bool isEnabled) in dlcs)
             {
-                if (File.Exists(downloadableContentContainer.ContainerPath))
+                DownloadableContents.Add(dlc);
+                hasBundledContent = hasBundledContent || dlc.IsBundled;
+
+                if (isEnabled)
                 {
-                    using IFileSystem partitionFileSystem = PartitionFileSystemUtils.OpenApplicationFileSystem(downloadableContentContainer.ContainerPath, _virtualFileSystem);
+                    SelectedDownloadableContents.Add(dlc);
-
-                    foreach (DownloadableContentNca downloadableContentNca in downloadableContentContainer.DownloadableContentNcaList)
-                    {
-                        using UniqueRef<IFile> ncaFile = new();
-
-                        partitionFileSystem.OpenFile(ref ncaFile.Ref, downloadableContentNca.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
-
-                        Nca nca = TryOpenNca(ncaFile.Get.AsStorage(), downloadableContentContainer.ContainerPath);
-                        if (nca != null)
-                        {
-                            var content = new DownloadableContentModel(nca.Header.TitleId.ToString("X16"),
-                                downloadableContentContainer.ContainerPath,
-                                downloadableContentNca.FullPath,
-                                downloadableContentNca.Enabled);
-
-                            DownloadableContents.Add(content);
-
-                            if (content.Enabled)
-                            {
-                                SelectedDownloadableContents.Add(content);
-                            }
-
-                            OnPropertyChanged(nameof(UpdateCount));
-                        }
-                    }
                 }
+
+                OnPropertyChanged(nameof(UpdateCount));
             }
 
-            // NOTE: Try to load downloadable contents from PFS last to preserve enabled state.
+            ShowBundledContentNotice = hasBundledContent;
-            AddDownloadableContent(_applicationData.Path);
 
-            // NOTE: Save the list again to remove leftovers.
-            Save();
             Sort();
         }
 
         public void Sort()
         {
-            DownloadableContents.AsObservableChangeSet()
+            DownloadableContents
+                // Sort bundled last
+                .OrderBy(it => it.IsBundled ? 0 : 1)
+                .ThenBy(it => it.TitleId)
+                .AsObservableChangeSet()
                 .Filter(Filter)
                 .Bind(out var view).AsObservableList();
 
+            // NOTE(jpr): this works around a bug where calling _views.Clear also clears SelectedDownloadableContents for
+            // some reason. so we save the items here and add them back after
+            var items = SelectedDownloadableContents.ToArray();
+
             _views.Clear();
             _views.AddRange(view);
+
+            foreach (DownloadableContentModel item in items)
+            {
+                SelectedDownloadableContents.ReplaceOrAdd(item, item);
+            }
+
             OnPropertyChanged(nameof(Views));
         }
 
-        private bool Filter(object arg)
+        private bool Filter<T>(T arg)
         {
             if (arg is DownloadableContentModel content)
             {
-                return string.IsNullOrWhiteSpace(_search) || content.FileName.ToLower().Contains(_search.ToLower()) || content.TitleId.ToLower().Contains(_search.ToLower());
+                return string.IsNullOrWhiteSpace(_search) || content.FileName.ToLower().Contains(_search.ToLower()) || content.TitleIdStr.ToLower().Contains(_search.ToLower());
             }
 
             return false;
         }
 
-        private Nca TryOpenNca(IStorage ncaStorage, string containerPath)
-        {
-            try
-            {
-                return new Nca(_virtualFileSystem.KeySet, ncaStorage);
-            }
-            catch (Exception ex)
-            {
-                Dispatcher.UIThread.InvokeAsync(async () =>
-                {
-                    await ContentDialogHelper.CreateErrorDialog(string.Format(LocaleManager.Instance[LocaleKeys.DialogLoadFileErrorMessage], ex.Message, containerPath));
-                });
-            }
-
-            return null;
-        }
-
         public async void Add()
         {
             var result = await _storageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
@@ -223,78 +177,88 @@ namespace Ryujinx.Ava.UI.ViewModels
                 },
             });
 
+            var totalDlcAdded = 0;
             foreach (var file in result)
             {
-                if (!AddDownloadableContent(file.Path.LocalPath))
+                if (!AddDownloadableContent(file.Path.LocalPath, out var newDlcAdded))
                 {
                     await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogDlcNoDlcErrorMessage]);
                 }
+
+                totalDlcAdded += newDlcAdded;
+            }
+
+            if (totalDlcAdded > 0)
+            {
+                await ShowNewDlcAddedDialog(totalDlcAdded);
             }
         }
 
-        private bool AddDownloadableContent(string path)
+        private bool AddDownloadableContent(string path, out int numDlcAdded)
         {
-            if (!File.Exists(path) || _downloadableContentContainerList.Any(x => x.ContainerPath == path))
+            numDlcAdded = 0;
+
+            if (!File.Exists(path))
             {
-                return true;
+                return false;
             }
 
-            using IFileSystem partitionFileSystem = PartitionFileSystemUtils.OpenApplicationFileSystem(path, _virtualFileSystem);
+            if (!_applicationLibrary.TryGetDownloadableContentFromFile(path, out var dlcs) || dlcs.Count == 0)
-
-            bool success = false;
-            foreach (DirectoryEntryEx fileEntry in partitionFileSystem.EnumerateEntries("/", "*.nca"))
             {
-                using var ncaFile = new UniqueRef<IFile>();
+                return false;
+            }
 
-                partitionFileSystem.OpenFile(ref ncaFile.Ref, fileEntry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
+            var dlcsForThisGame = dlcs.Where(it => it.TitleIdBase == _applicationData.IdBase).ToList();
+            if (dlcsForThisGame.Count == 0)
+            {
+                return false;
+            }
 
-                Nca nca = TryOpenNca(ncaFile.Get.AsStorage(), path);
+            foreach (var dlc in dlcsForThisGame)
-                if (nca == null)
+            {
+                if (!DownloadableContents.Contains(dlc))
                 {
-                    continue;
+                    DownloadableContents.Add(dlc);
-                }
+                    SelectedDownloadableContents.ReplaceOrAdd(dlc, dlc);
 
-                if (nca.Header.ContentType == NcaContentType.PublicData)
+                    numDlcAdded++;
-                {
-                    if (nca.GetProgramIdBase() != _applicationData.IdBase)
-                    {
-                        continue;
-                    }
-
-                    var content = new DownloadableContentModel(nca.Header.TitleId.ToString("X16"), path, fileEntry.FullPath, true);
-                    DownloadableContents.Add(content);
-                    Dispatcher.UIThread.InvokeAsync(() => SelectedDownloadableContents.Add(content));
-
-                    success = true;
                 }
             }
 
-            if (success)
+            if (numDlcAdded > 0)
             {
                 OnPropertyChanged(nameof(UpdateCount));
                 Sort();
             }
 
-            return success;
+            return true;
         }
 
         public void Remove(DownloadableContentModel model)
         {
-            DownloadableContents.Remove(model);
+            SelectedDownloadableContents.Remove(model);
-            OnPropertyChanged(nameof(UpdateCount));
+
-            Sort();
+            if (!model.IsBundled)
+            {
+                DownloadableContents.Remove(model);
+                OnPropertyChanged(nameof(UpdateCount));
+                Sort();
+            }
         }
 
         public void RemoveAll()
         {
-            DownloadableContents.Clear();
+            SelectedDownloadableContents.Clear();
+            DownloadableContents.RemoveMany(DownloadableContents.Where(it => !it.IsBundled));
+
             OnPropertyChanged(nameof(UpdateCount));
             Sort();
         }
 
         public void EnableAll()
         {
-            SelectedDownloadableContents = new(DownloadableContents);
+            SelectedDownloadableContents.Clear();
+            SelectedDownloadableContents.AddRange(DownloadableContents);
         }
 
         public void DisableAll()
@@ -302,43 +266,29 @@ namespace Ryujinx.Ava.UI.ViewModels
             SelectedDownloadableContents.Clear();
         }
 
-        public void Save()
+        public void Enable(DownloadableContentModel model)
         {
-            _downloadableContentContainerList.Clear();
+            SelectedDownloadableContents.ReplaceOrAdd(model, model);
-
-            DownloadableContentContainer container = default;
-
-            foreach (DownloadableContentModel downloadableContent in DownloadableContents)
-            {
-                if (container.ContainerPath != downloadableContent.ContainerPath)
-                {
-                    if (!string.IsNullOrWhiteSpace(container.ContainerPath))
-                    {
-                        _downloadableContentContainerList.Add(container);
-                    }
-
-                    container = new DownloadableContentContainer
-                    {
-                        ContainerPath = downloadableContent.ContainerPath,
-                        DownloadableContentNcaList = new List<DownloadableContentNca>(),
-                    };
-                }
-
-                container.DownloadableContentNcaList.Add(new DownloadableContentNca
-                {
-                    Enabled = downloadableContent.Enabled,
-                    TitleId = Convert.ToUInt64(downloadableContent.TitleId, 16),
-                    FullPath = downloadableContent.FullPath,
-                });
-            }
-
-            if (!string.IsNullOrWhiteSpace(container.ContainerPath))
-            {
-                _downloadableContentContainerList.Add(container);
-            }
-
-            JsonHelper.SerializeToFile(_downloadableContentJsonPath, _downloadableContentContainerList, _serializerContext.ListDownloadableContentContainer);
         }
 
+        public void Disable(DownloadableContentModel model)
+        {
+            SelectedDownloadableContents.Remove(model);
+        }
+
+        public void Save()
+        {
+            var dlcs = DownloadableContents.Select(it => (it, SelectedDownloadableContents.Contains(it))).ToList();
+            _applicationLibrary.SaveDownloadableContentsForGame(_applicationData, dlcs);
+        }
+
+        private Task ShowNewDlcAddedDialog(int numAdded)
+        {
+            var msg = string.Format(LocaleManager.Instance[LocaleKeys.DlcWindowDlcAddedMessage], numAdded);
+            return Dispatcher.UIThread.InvokeAsync(async () =>
+            {
+                await ContentDialogHelper.ShowTextDialog(LocaleManager.Instance[LocaleKeys.DialogConfirmationTitle], msg, "", "", "", LocaleManager.Instance[LocaleKeys.InputDialogOk], (int)Symbol.Checkmark);
+            });
+        }
     }
 }

src/Ryujinx/UI/ViewModels/MainWindowViewModel.cs

@@ -6,7 +6,9 @@ using Avalonia.Media;
 using Avalonia.Platform.Storage;
 using Avalonia.Threading;
 using DynamicData;
+using DynamicData.Alias;
 using DynamicData.Binding;
+using FluentAvalonia.UI.Controls;
 using LibHac.Common;
 using Ryujinx.Ava.Common;
 using Ryujinx.Ava.Common.Locale;
@@ -38,6 +40,7 @@ using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Globalization;
 using System.IO;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using Key = Ryujinx.Input.Key;
@@ -50,7 +53,7 @@ namespace Ryujinx.Ava.UI.ViewModels
     {
         private const int HotKeyPressDelayMs = 500;
 
-        private ObservableCollection<ApplicationData> _applications;
+        private ObservableCollectionExtended<ApplicationData> _applications;
         private string _aspectStatusText;
 
         private string _loadHeading;
@@ -112,7 +115,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
         public MainWindowViewModel()
         {
-            Applications = new ObservableCollection<ApplicationData>();
+            Applications = new ObservableCollectionExtended<ApplicationData>();
 
             Applications.ToObservableChangeSet()
                 .Filter(Filter)
@@ -741,7 +744,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             get => FileAssociationHelper.IsTypeAssociationSupported;
         }
 
-        public ObservableCollection<ApplicationData> Applications
+        public ObservableCollectionExtended<ApplicationData> Applications
         {
             get => _applications;
             set
@@ -1256,6 +1259,30 @@ namespace Ryujinx.Ava.UI.ViewModels
             _rendererWaitEvent.Set();
         }
 
+        private async Task LoadContentFromFolder(LocaleKeys localeMessageKey, Func<List<string>, int> onDirsSelected)
+        {
+            var result = await StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
+            {
+                Title = LocaleManager.Instance[LocaleKeys.OpenFolderDialogTitle],
+                AllowMultiple = true,
+            });
+
+            if (result.Count > 0)
+            {
+                var dirs = result.Select(it => it.Path.LocalPath).ToList();
+                var numAdded = onDirsSelected(dirs);
+
+                var msg = string.Format(LocaleManager.Instance[localeMessageKey], numAdded);
+
+                await Dispatcher.UIThread.InvokeAsync(async () =>
+                {
+                    await ContentDialogHelper.ShowTextDialog(
+                        LocaleManager.Instance[numAdded > 0 ? LocaleKeys.RyujinxConfirm : LocaleKeys.RyujinxInfo],
+                        msg, "", "", "", LocaleManager.Instance[LocaleKeys.InputDialogOk], (int)Symbol.Checkmark);
+                });
+            }
+        }
+
         #endregion
 
         #region PublicMethods
@@ -1504,6 +1531,18 @@ namespace Ryujinx.Ava.UI.ViewModels
             }
         }
 
+        public async Task LoadDlcFromFolder()
+        {
+            await LoadContentFromFolder(LocaleKeys.AutoloadDlcAddedMessage,
+                dirs => ApplicationLibrary.AutoLoadDownloadableContents(dirs));
+        }
+
+        public async Task LoadTitleUpdatesFromFolder()
+        {
+            await LoadContentFromFolder(LocaleKeys.AutoloadUpdateAddedMessage,
+                dirs => ApplicationLibrary.AutoLoadTitleUpdates(dirs));
+        }
+
         public async Task OpenFolder()
         {
             var result = await StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions

src/Ryujinx/UI/ViewModels/SettingsViewModel.cs

@@ -44,7 +44,8 @@ namespace Ryujinx.Ava.UI.ViewModels
         private int _graphicsBackendMultithreadingIndex;
         private float _volume;
         private bool _isVulkanAvailable = true;
-        private bool _directoryChanged;
+        private bool _gameDirectoryChanged;
+        private bool _autoloadDirectoryChanged;
         private readonly List<string> _gpuIds = new();
         private int _graphicsBackendIndex;
         private int _scalingFilter;
@@ -115,12 +116,23 @@ namespace Ryujinx.Ava.UI.ViewModels
 
         public bool IsHypervisorAvailable => OperatingSystem.IsMacOS() && RuntimeInformation.ProcessArchitecture == Architecture.Arm64;
 
-        public bool DirectoryChanged
+        public bool GameDirectoryChanged
         {
-            get => _directoryChanged;
+            get => _gameDirectoryChanged;
             set
             {
-                _directoryChanged = value;
+                _gameDirectoryChanged = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public bool AutoloadDirectoryChanged
+        {
+            get => _autoloadDirectoryChanged;
+            set
+            {
+                _autoloadDirectoryChanged = value;
 
                 OnPropertyChanged();
             }
@@ -230,6 +242,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
         internal AvaloniaList<TimeZone> TimeZones { get; set; }
         public AvaloniaList<string> GameDirectories { get; set; }
+        public AvaloniaList<string> AutoloadDirectories { get; set; }
         public ObservableCollection<ComboBoxItem> AvailableGpus { get; set; }
 
         public AvaloniaList<string> NetworkInterfaceList
@@ -272,6 +285,7 @@ namespace Ryujinx.Ava.UI.ViewModels
         public SettingsViewModel()
         {
             GameDirectories = new AvaloniaList<string>();
+            AutoloadDirectories = new AvaloniaList<string>();
             TimeZones = new AvaloniaList<TimeZone>();
             AvailableGpus = new ObservableCollection<ComboBoxItem>();
             _validTzRegions = new List<string>();
@@ -397,6 +411,9 @@ namespace Ryujinx.Ava.UI.ViewModels
             GameDirectories.Clear();
             GameDirectories.AddRange(config.UI.GameDirs.Value);
 
+            AutoloadDirectories.Clear();
+            AutoloadDirectories.AddRange(config.UI.AutoloadDirs.Value);
+
             BaseStyleIndex = config.UI.BaseStyle.Value switch
             {
                 "Auto" => 0,
@@ -486,12 +503,18 @@ namespace Ryujinx.Ava.UI.ViewModels
             config.RememberWindowState.Value = RememberWindowState;
             config.HideCursor.Value = (HideCursorMode)HideCursor;
 
-            if (_directoryChanged)
+            if (_gameDirectoryChanged)
             {
                 List<string> gameDirs = new(GameDirectories);
                 config.UI.GameDirs.Value = gameDirs;
             }
 
+            if (_autoloadDirectoryChanged)
+            {
+                List<string> autoloadDirs = new(AutoloadDirectories);
+                config.UI.AutoloadDirs.Value = autoloadDirs;
+            }
+
             config.UI.BaseStyle.Value = BaseStyleIndex switch
             {
                 0 => "Auto",
@@ -587,7 +610,8 @@ namespace Ryujinx.Ava.UI.ViewModels
 
             SaveSettingsEvent?.Invoke();
 
-            _directoryChanged = false;
+            _gameDirectoryChanged = false;
+            _autoloadDirectoryChanged = false;
         }
 
         private static void RevertIfNotSaved()

src/Ryujinx/UI/ViewModels/TitleUpdateViewModel.cs

@@ -2,48 +2,31 @@ using Avalonia.Collections;
 using Avalonia.Controls.ApplicationLifetimes;
 using Avalonia.Platform.Storage;
 using Avalonia.Threading;
-using LibHac.Common;
+using FluentAvalonia.UI.Controls;
-using LibHac.Fs;
-using LibHac.Fs.Fsa;
-using LibHac.Ncm;
-using LibHac.Ns;
-using LibHac.Tools.FsSystem;
-using LibHac.Tools.FsSystem.NcaUtils;
 using Ryujinx.Ava.Common.Locale;
 using Ryujinx.Ava.UI.Helpers;
-using Ryujinx.Ava.UI.Models;
-using Ryujinx.Common.Configuration;
-using Ryujinx.Common.Logging;
-using Ryujinx.Common.Utilities;
 using Ryujinx.HLE.FileSystem;
-using Ryujinx.HLE.Loaders.Processes.Extensions;
-using Ryujinx.HLE.Utilities;
 using Ryujinx.UI.App.Common;
-using Ryujinx.UI.Common.Configuration;
+using Ryujinx.UI.Common.Models;
-using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
 using Application = Avalonia.Application;
-using ContentType = LibHac.Ncm.ContentType;
-using Path = System.IO.Path;
-using SpanHelpers = LibHac.Common.SpanHelpers;
 
 namespace Ryujinx.Ava.UI.ViewModels
 {
+    public record TitleUpdateViewNoUpdateSentinal();
+
     public class TitleUpdateViewModel : BaseModel
     {
-        public TitleUpdateMetadata TitleUpdateWindowData;
+        private ApplicationLibrary ApplicationLibrary { get; }
-        public readonly string TitleUpdateJsonPath;
-        private VirtualFileSystem VirtualFileSystem { get; }
         private ApplicationData ApplicationData { get; }
 
         private AvaloniaList<TitleUpdateModel> _titleUpdates = new();
         private AvaloniaList<object> _views = new();
-        private object _selectedUpdate;
+        private object _selectedUpdate = new TitleUpdateViewNoUpdateSentinal();
-
+        private bool _showBundledContentNotice = false;
-        private static readonly TitleUpdateMetadataJsonSerializerContext _serializerContext = new(JsonHelper.GetDefaultSerializerOptions());
 
         public AvaloniaList<TitleUpdateModel> TitleUpdates
         {
@@ -75,11 +58,21 @@ namespace Ryujinx.Ava.UI.ViewModels
             }
         }
 
+        public bool ShowBundledContentNotice
+        {
+            get => _showBundledContentNotice;
+            set
+            {
+                _showBundledContentNotice = value;
+                OnPropertyChanged();
+            }
+        }
+
         public IStorageProvider StorageProvider;
 
-        public TitleUpdateViewModel(VirtualFileSystem virtualFileSystem, ApplicationData applicationData)
+        public TitleUpdateViewModel(ApplicationLibrary applicationLibrary, ApplicationData applicationData)
         {
-            VirtualFileSystem = virtualFileSystem;
+            ApplicationLibrary = applicationLibrary;
 
             ApplicationData = applicationData;
 
@@ -88,44 +81,29 @@ namespace Ryujinx.Ava.UI.ViewModels
                 StorageProvider = desktop.MainWindow.StorageProvider;
             }
 
-            TitleUpdateJsonPath = Path.Combine(AppDataManager.GamesDirPath, ApplicationData.IdBaseString, "updates.json");
-
-            try
-            {
-                TitleUpdateWindowData = JsonHelper.DeserializeFromFile(TitleUpdateJsonPath, _serializerContext.TitleUpdateMetadata);
-            }
-            catch
-            {
-                Logger.Warning?.Print(LogClass.Application, $"Failed to deserialize title update data for {ApplicationData.IdBaseString} at {TitleUpdateJsonPath}");
-
-                TitleUpdateWindowData = new TitleUpdateMetadata
-                {
-                    Selected = "",
-                    Paths = new List<string>(),
-                };
-
-                Save();
-            }
-
             LoadUpdates();
         }
 
         private void LoadUpdates()
         {
-            // Try to load updates from PFS first
+            var updates = ApplicationLibrary.TitleUpdates.Items
-            AddUpdate(ApplicationData.Path, true);
+                .Where(it => it.TitleUpdate.TitleIdBase == ApplicationData.IdBase);
 
-            foreach (string path in TitleUpdateWindowData.Paths)
+            bool hasBundledContent = false;
+            SelectedUpdate = new TitleUpdateViewNoUpdateSentinal();
+            foreach ((TitleUpdateModel update, bool isSelected) in updates)
             {
-                AddUpdate(path);
+                TitleUpdates.Add(update);
+                hasBundledContent = hasBundledContent || update.IsBundled;
+
+                if (isSelected)
+                {
+                    SelectedUpdate = update;
+                }
             }
 
-            TitleUpdateModel selected = TitleUpdates.FirstOrDefault(x => x.Path == TitleUpdateWindowData.Selected, null);
+            ShowBundledContentNotice = hasBundledContent;
 
-            SelectedUpdate = selected;
-
-            // NOTE: Save the list again to remove leftovers.
-            Save();
             SortUpdates();
         }
 
@@ -133,89 +111,76 @@ namespace Ryujinx.Ava.UI.ViewModels
         {
             var sortedUpdates = TitleUpdates.OrderByDescending(update => update.Version);
 
+            // NOTE(jpr): this works around a bug where calling Views.Clear also clears SelectedUpdate for
+            // some reason. so we save the item here and restore it after
+            var selected = SelectedUpdate;
+
             Views.Clear();
-            Views.Add(new BaseModel());
+            Views.Add(new TitleUpdateViewNoUpdateSentinal());
             Views.AddRange(sortedUpdates);
 
-            if (SelectedUpdate == null)
+            SelectedUpdate = selected;
+
+            if (SelectedUpdate is TitleUpdateViewNoUpdateSentinal)
             {
                 SelectedUpdate = Views[0];
             }
-            else if (!TitleUpdates.Contains(SelectedUpdate))
+            // this is mainly to handle a scenario where the user removes the selected update
+            else if (!TitleUpdates.Contains((TitleUpdateModel)SelectedUpdate))
             {
-                if (Views.Count > 1)
+                SelectedUpdate = Views.Count > 1 ? Views[1] : Views[0];
-                {
-                    SelectedUpdate = Views[1];
-                }
-                else
-                {
-                    SelectedUpdate = Views[0];
-                }
             }
         }
 
-        private void AddUpdate(string path, bool ignoreNotFound = false, bool selected = false)
+        private bool AddUpdate(string path, out int numUpdatesAdded)
         {
-            if (!File.Exists(path) || TitleUpdates.Any(x => x.Path == path))
+            numUpdatesAdded = 0;
+
+            if (!File.Exists(path))
             {
-                return;
+                return false;
             }
 
-            IntegrityCheckLevel checkLevel = ConfigurationState.Instance.System.EnableFsIntegrityChecks
+            if (!ApplicationLibrary.TryGetTitleUpdatesFromFile(path, out var updates))
-                ? IntegrityCheckLevel.ErrorOnInvalid
-                : IntegrityCheckLevel.None;
-
-            try
             {
-                using IFileSystem pfs = PartitionFileSystemUtils.OpenApplicationFileSystem(path, VirtualFileSystem);
+                return false;
+            }
 
-                Dictionary<ulong, ContentMetaData> updates = pfs.GetContentData(ContentMetaType.Patch, VirtualFileSystem, checkLevel);
+            var updatesForThisGame = updates.Where(it => it.TitleIdBase == ApplicationData.Id).ToList();
+            if (updatesForThisGame.Count == 0)
+            {
+                return false;
+            }
 
-                Nca patchNca = null;
+            foreach (var update in updatesForThisGame)
-                Nca controlNca = null;
+            {
-
+                if (!TitleUpdates.Contains(update))
-                if (updates.TryGetValue(ApplicationData.Id, out ContentMetaData content))
                 {
-                    patchNca = content.GetNcaByType(VirtualFileSystem.KeySet, ContentType.Program);
-                    controlNca = content.GetNcaByType(VirtualFileSystem.KeySet, ContentType.Control);
-                }
-
-                if (controlNca != null && patchNca != null)
-                {
-                    ApplicationControlProperty controlData = new();
-
-                    using UniqueRef<IFile> nacpFile = new();
-
-                    controlNca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.None).OpenFile(ref nacpFile.Ref, "/control.nacp".ToU8Span(), OpenMode.Read).ThrowIfFailure();
-                    nacpFile.Get.Read(out _, 0, SpanHelpers.AsByteSpan(ref controlData), ReadOption.None).ThrowIfFailure();
-
-                    var displayVersion = controlData.DisplayVersionString.ToString();
-                    var update = new TitleUpdateModel(content.Version.Version, displayVersion, path);
-
                     TitleUpdates.Add(update);
+                    SelectedUpdate = update;
 
-                    if (selected)
+                    numUpdatesAdded++;
-                    {
-                        Dispatcher.UIThread.InvokeAsync(() => SelectedUpdate = update);
-                    }
-                }
-                else
-                {
-                    if (!ignoreNotFound)
-                    {
-                        Dispatcher.UIThread.InvokeAsync(() => ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogUpdateAddUpdateErrorMessage]));
-                    }
                 }
             }
-            catch (Exception ex)
+
+            if (numUpdatesAdded > 0)
             {
-                Dispatcher.UIThread.InvokeAsync(() => ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogLoadFileErrorMessage, ex.Message, path)));
+                SortUpdates();
             }
+
+            return true;
         }
 
         public void RemoveUpdate(TitleUpdateModel update)
         {
-            TitleUpdates.Remove(update);
+            if (!update.IsBundled)
+            {
+                TitleUpdates.Remove(update);
+            }
+            else if (update == SelectedUpdate as TitleUpdateModel)
+            {
+                SelectedUpdate = new TitleUpdateViewNoUpdateSentinal();
+            }
 
             SortUpdates();
         }
@@ -236,30 +201,36 @@ namespace Ryujinx.Ava.UI.ViewModels
                 },
             });
 
+            var totalUpdatesAdded = 0;
             foreach (var file in result)
             {
-                AddUpdate(file.Path.LocalPath, selected: true);
+                if (!AddUpdate(file.Path.LocalPath, out var newUpdatesAdded))
+                {
+                    await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogUpdateAddUpdateErrorMessage]);
+                }
+
+                totalUpdatesAdded += newUpdatesAdded;
             }
 
-            SortUpdates();
+            if (totalUpdatesAdded > 0)
+            {
+                await ShowNewUpdatesAddedDialog(totalUpdatesAdded);
+            }
         }
 
         public void Save()
         {
-            TitleUpdateWindowData.Paths.Clear();
+            var updates = TitleUpdates.Select(it => (it, it == SelectedUpdate as TitleUpdateModel)).ToList();
-            TitleUpdateWindowData.Selected = "";
+            ApplicationLibrary.SaveTitleUpdatesForGame(ApplicationData, updates);
+        }
 
-            foreach (TitleUpdateModel update in TitleUpdates)
+        private Task ShowNewUpdatesAddedDialog(int numAdded)
+        {
+            var msg = string.Format(LocaleManager.Instance[LocaleKeys.UpdateWindowUpdateAddedMessage], numAdded);
+            return Dispatcher.UIThread.InvokeAsync(async () =>
             {
-                TitleUpdateWindowData.Paths.Add(update.Path);
+                await ContentDialogHelper.ShowTextDialog(LocaleManager.Instance[LocaleKeys.DialogConfirmationTitle], msg, "", "", "", LocaleManager.Instance[LocaleKeys.InputDialogOk], (int)Symbol.Checkmark);
-
+            });
-                if (update == SelectedUpdate)
-                {
-                    TitleUpdateWindowData.Selected = update.Path;
-                }
-            }
-
-            JsonHelper.SerializeToFile(TitleUpdateJsonPath, TitleUpdateWindowData, _serializerContext.TitleUpdateMetadata);
         }
     }
 }

src/Ryujinx/UI/Views/Main/MainMenuBarView.axaml

@@ -34,6 +34,16 @@
                     Header="{locale:Locale MenuBarFileOpenUnpacked}"
                     IsEnabled="{Binding EnableNonGameRunningControls}"
                     ToolTip.Tip="{locale:Locale LoadApplicationFolderTooltip}" />
+                <MenuItem
+                    Command="{Binding LoadDlcFromFolder}"
+                    Header="{locale:Locale MenuBarFileLoadDlcFromFolder}"
+                    IsEnabled="{Binding EnableNonGameRunningControls}"
+                    ToolTip.Tip="{locale:Locale LoadDlcFromFolderTooltip}" />
+                <MenuItem
+                    Command="{Binding LoadTitleUpdatesFromFolder}"
+                    Header="{locale:Locale MenuBarFileLoadTitleUpdatesFromFolder}"
+                    IsEnabled="{Binding EnableNonGameRunningControls}"
+                    ToolTip.Tip="{locale:Locale LoadTitleUpdatesFromFolderTooltip}" />
                 <MenuItem Header="{locale:Locale MenuBarFileOpenApplet}" IsEnabled="{Binding IsAppletMenuActive}">
                     <MenuItem
                         Click="OpenMiiApplet"

src/Ryujinx/UI/Views/Settings/SettingsUIView.axaml

@@ -85,8 +85,8 @@
                     Orientation="Vertical"
                     Spacing="10">
                     <ListBox
-                        Name="GameList"
+                        Name="GameDirsList"
-                        MinHeight="230"
+                        MinHeight="120"
                         ItemsSource="{Binding GameDirectories}">
                         <ListBox.Styles>
                             <Style Selector="ListBoxItem">
@@ -102,27 +102,78 @@
                             <ColumnDefinition Width="Auto" />
                         </Grid.ColumnDefinitions>
                         <TextBox
-                            Name="PathBox"
+                            Name="GameDirPathBox"
                             Margin="0"
                             ToolTip.Tip="{locale:Locale AddGameDirBoxTooltip}"
                             VerticalAlignment="Stretch" />
                         <Button
-                            Name="AddButton"
+                            Name="AddGameDirButton"
                             Grid.Column="1"
                             MinWidth="90"
                             Margin="10,0,0,0"
                             ToolTip.Tip="{locale:Locale AddGameDirTooltip}"
-                            Click="AddButton_OnClick">
+                            Click="AddGameDirButton_OnClick">
                             <TextBlock HorizontalAlignment="Center"
                                        Text="{locale:Locale SettingsTabGeneralAdd}" />
                         </Button>
                         <Button
-                            Name="RemoveButton"
+                            Name="RemoveGameDirButton"
                             Grid.Column="2"
                             MinWidth="90"
                             Margin="10,0,0,0"
                             ToolTip.Tip="{locale:Locale RemoveGameDirTooltip}"
-                            Click="RemoveButton_OnClick">
+                            Click="RemoveGameDirButton_OnClick">
+                            <TextBlock HorizontalAlignment="Center"
+                                       Text="{locale:Locale SettingsTabGeneralRemove}" />
+                        </Button>
+                    </Grid>
+                </StackPanel>
+                <Separator Height="1" />
+                <TextBlock Classes="h1" Text="{locale:Locale SettingsTabGeneralAutoloadDirectories}" />
+                <StackPanel
+                    Margin="10,0,0,0"
+                    HorizontalAlignment="Stretch"
+                    Orientation="Vertical"
+                    Spacing="10">
+                    <ListBox
+                        Name="AutoloadDirsList"
+                        MinHeight="120"
+                        ItemsSource="{Binding AutoloadDirectories}">
+                        <ListBox.Styles>
+                            <Style Selector="ListBoxItem">
+                                <Setter Property="Padding" Value="10" />
+                                <Setter Property="Background" Value="{DynamicResource ListBoxBackground}" />
+                            </Style>
+                        </ListBox.Styles>
+                    </ListBox>
+                    <Grid HorizontalAlignment="Stretch">
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="*" />
+                            <ColumnDefinition Width="Auto" />
+                            <ColumnDefinition Width="Auto" />
+                        </Grid.ColumnDefinitions>
+                        <TextBox
+                            Name="AutoloadDirPathBox"
+                            Margin="0"
+                            ToolTip.Tip="{locale:Locale AddAutoloadDirBoxTooltip}"
+                            VerticalAlignment="Stretch" />
+                        <Button
+                            Name="AddAutoloadDirButton"
+                            Grid.Column="1"
+                            MinWidth="90"
+                            Margin="10,0,0,0"
+                            ToolTip.Tip="{locale:Locale AddAutoloadDirTooltip}"
+                            Click="AddAutoloadDirButton_OnClick">
+                            <TextBlock HorizontalAlignment="Center"
+                                       Text="{locale:Locale SettingsTabGeneralAdd}" />
+                        </Button>
+                        <Button
+                            Name="RemoveAutoloadDirButton"
+                            Grid.Column="2"
+                            MinWidth="90"
+                            Margin="10,0,0,0"
+                            ToolTip.Tip="{locale:Locale RemoveAutoloadDirTooltip}"
+                            Click="RemoveAutoloadDirButton_OnClick">
                             <TextBlock HorizontalAlignment="Center"
                                        Text="{locale:Locale SettingsTabGeneralRemove}" />
                         </Button>

src/Ryujinx/UI/Views/Settings/SettingsUIView.axaml.cs

@@ -19,14 +19,14 @@ namespace Ryujinx.Ava.UI.Views.Settings
             InitializeComponent();
         }
 
-        private async void AddButton_OnClick(object sender, RoutedEventArgs e)
+        private async void AddGameDirButton_OnClick(object sender, RoutedEventArgs e)
         {
-            string path = PathBox.Text;
+            string path = GameDirPathBox.Text;
 
             if (!string.IsNullOrWhiteSpace(path) && Directory.Exists(path) && !ViewModel.GameDirectories.Contains(path))
             {
                 ViewModel.GameDirectories.Add(path);
-                ViewModel.DirectoryChanged = true;
+                ViewModel.GameDirectoryChanged = true;
             }
             else
             {
@@ -40,25 +40,68 @@ namespace Ryujinx.Ava.UI.Views.Settings
                     if (result.Count > 0)
                     {
                         ViewModel.GameDirectories.Add(result[0].Path.LocalPath);
-                        ViewModel.DirectoryChanged = true;
+                        ViewModel.GameDirectoryChanged = true;
                     }
                 }
             }
         }
 
-        private void RemoveButton_OnClick(object sender, RoutedEventArgs e)
+        private void RemoveGameDirButton_OnClick(object sender, RoutedEventArgs e)
         {
-            int oldIndex = GameList.SelectedIndex;
+            int oldIndex = GameDirsList.SelectedIndex;
 
-            foreach (string path in new List<string>(GameList.SelectedItems.Cast<string>()))
+            foreach (string path in new List<string>(GameDirsList.SelectedItems.Cast<string>()))
             {
                 ViewModel.GameDirectories.Remove(path);
-                ViewModel.DirectoryChanged = true;
+                ViewModel.GameDirectoryChanged = true;
             }
 
-            if (GameList.ItemCount > 0)
+            if (GameDirsList.ItemCount > 0)
             {
-                GameList.SelectedIndex = oldIndex < GameList.ItemCount ? oldIndex : 0;
+                GameDirsList.SelectedIndex = oldIndex < GameDirsList.ItemCount ? oldIndex : 0;
+            }
+        }
+
+        private async void AddAutoloadDirButton_OnClick(object sender, RoutedEventArgs e)
+        {
+            string path = AutoloadDirPathBox.Text;
+
+            if (!string.IsNullOrWhiteSpace(path) && Directory.Exists(path) && !ViewModel.AutoloadDirectories.Contains(path))
+            {
+                ViewModel.AutoloadDirectories.Add(path);
+                ViewModel.AutoloadDirectoryChanged = true;
+            }
+            else
+            {
+                if (this.GetVisualRoot() is Window window)
+                {
+                    var result = await window.StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
+                    {
+                        AllowMultiple = false,
+                    });
+
+                    if (result.Count > 0)
+                    {
+                        ViewModel.AutoloadDirectories.Add(result[0].Path.LocalPath);
+                        ViewModel.AutoloadDirectoryChanged = true;
+                    }
+                }
+            }
+        }
+
+        private void RemoveAutoloadDirButton_OnClick(object sender, RoutedEventArgs e)
+        {
+            int oldIndex = AutoloadDirsList.SelectedIndex;
+
+            foreach (string path in new List<string>(AutoloadDirsList.SelectedItems.Cast<string>()))
+            {
+                ViewModel.AutoloadDirectories.Remove(path);
+                ViewModel.AutoloadDirectoryChanged = true;
+            }
+
+            if (AutoloadDirsList.ItemCount > 0)
+            {
+                AutoloadDirsList.SelectedIndex = oldIndex < AutoloadDirsList.ItemCount ? oldIndex : 0;
             }
         }
     }

src/Ryujinx/UI/Windows/DownloadableContentManagerWindow.axaml

@@ -6,22 +6,44 @@
     xmlns:locale="clr-namespace:Ryujinx.Ava.Common.Locale"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:viewModels="clr-namespace:Ryujinx.Ava.UI.ViewModels"
-    xmlns:models="clr-namespace:Ryujinx.Ava.UI.Models"
+    xmlns:models="clr-namespace:Ryujinx.UI.Common.Models;assembly=Ryujinx.UI.Common"
     xmlns:ui="clr-namespace:FluentAvalonia.UI.Controls;assembly=FluentAvalonia"
+    xmlns:helpers="clr-namespace:Ryujinx.Ava.UI.Helpers"
     Width="500"
     Height="380"
     mc:Ignorable="d"
     x:DataType="viewModels:DownloadableContentManagerViewModel"
     Focusable="True">
+    <UserControl.Resources>
+        <helpers:DownloadableContentLabelConverter x:Key="DownloadableContentLabel" />
+    </UserControl.Resources>
     <Grid>
         <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
             <RowDefinition Height="Auto" />
             <RowDefinition Height="*" />
             <RowDefinition Height="Auto" />
         </Grid.RowDefinitions>
+        <StackPanel
+            Grid.Row="0"
+            Margin="0 0 0 10"
+            Spacing="5"
+            Orientation="Horizontal"
+            IsVisible="{Binding ShowBundledContentNotice}">
+            <ui:FontIcon
+                Margin="0"
+                HorizontalAlignment="Stretch"
+                FontFamily="avares://FluentAvalonia/Fonts#Symbols"
+                Glyph="{helpers:GlyphValueConverter Important}" />
+            <!-- NOTE: aligning to bottom for better visual alignment with glyph -->
+            <TextBlock
+                FontStyle="Italic"
+                VerticalAlignment="Bottom"
+                Text="{locale:Locale DlcWindowBundledContentNotice}" />
+        </StackPanel>
         <Panel
             Margin="0 0 0 10"
-            Grid.Row="0">
+            Grid.Row="1">
             <Grid>
                 <Grid.ColumnDefinitions>
                     <ColumnDefinition Width="Auto" />
@@ -60,7 +82,7 @@
             </Grid>
         </Panel>
         <Border
-            Grid.Row="1"
+            Grid.Row="2"
             Margin="0 0 0 24"
             HorizontalAlignment="Stretch"
             VerticalAlignment="Stretch"
@@ -73,7 +95,7 @@
                 SelectionMode="Multiple, Toggle"
                 Background="Transparent"
                 SelectionChanged="OnSelectionChanged"
-                SelectedItems="{Binding SelectedDownloadableContents, Mode=TwoWay}"
+                SelectedItems="{Binding SelectedDownloadableContents, Mode=OneWay}"
                 ItemsSource="{Binding Views}">
                 <ListBox.DataTemplates>
                     <DataTemplate
@@ -96,8 +118,14 @@
                                         VerticalAlignment="Center"
                                         MaxLines="2"
                                         TextWrapping="Wrap"
-                                        TextTrimming="CharacterEllipsis"
+                                        TextTrimming="CharacterEllipsis">
-                                        Text="{Binding Label}" />
+                                        <TextBlock.Text>
+                                            <MultiBinding Converter="{StaticResource DownloadableContentLabel}">
+                                                <Binding Path="FileName" />
+                                                <Binding Path="IsBundled" />
+                                            </MultiBinding>
+                                        </TextBlock.Text>
+                                    </TextBlock>
                                     <TextBlock
                                         Grid.Column="1"
                                         Margin="10 0"
@@ -147,7 +175,7 @@
             </ListBox>
         </Border>
         <Panel
-            Grid.Row="2"
+            Grid.Row="3"
             HorizontalAlignment="Stretch">
             <StackPanel
                 Orientation="Horizontal"

src/Ryujinx/UI/Windows/DownloadableContentManagerWindow.axaml.cs

@@ -3,11 +3,10 @@ using Avalonia.Interactivity;
 using Avalonia.Styling;
 using FluentAvalonia.UI.Controls;
 using Ryujinx.Ava.Common.Locale;
-using Ryujinx.Ava.UI.Models;
 using Ryujinx.Ava.UI.ViewModels;
-using Ryujinx.HLE.FileSystem;
 using Ryujinx.UI.App.Common;
 using Ryujinx.UI.Common.Helper;
+using Ryujinx.UI.Common.Models;
 using System.Threading.Tasks;
 
 namespace Ryujinx.Ava.UI.Windows
@@ -23,21 +22,21 @@ namespace Ryujinx.Ava.UI.Windows
             InitializeComponent();
         }
 
-        public DownloadableContentManagerWindow(VirtualFileSystem virtualFileSystem, ApplicationData applicationData)
+        public DownloadableContentManagerWindow(ApplicationLibrary applicationLibrary, ApplicationData applicationData)
         {
-            DataContext = ViewModel = new DownloadableContentManagerViewModel(virtualFileSystem, applicationData);
+            DataContext = ViewModel = new DownloadableContentManagerViewModel(applicationLibrary, applicationData);
 
             InitializeComponent();
         }
 
-        public static async Task Show(VirtualFileSystem virtualFileSystem, ApplicationData applicationData)
+        public static async Task Show(ApplicationLibrary applicationLibrary, ApplicationData applicationData)
         {
             ContentDialog contentDialog = new()
             {
                 PrimaryButtonText = "",
                 SecondaryButtonText = "",
                 CloseButtonText = "",
-                Content = new DownloadableContentManagerWindow(virtualFileSystem, applicationData),
+                Content = new DownloadableContentManagerWindow(applicationLibrary, applicationData),
                 Title = string.Format(LocaleManager.Instance[LocaleKeys.DlcWindowTitle], applicationData.Name, applicationData.IdBaseString),
             };
 
@@ -88,12 +87,7 @@ namespace Ryujinx.Ava.UI.Windows
             {
                 if (content is DownloadableContentModel model)
                 {
-                    var index = ViewModel.DownloadableContents.IndexOf(model);
+                    ViewModel.Enable(model);
-
-                    if (index != -1)
-                    {
-                        ViewModel.DownloadableContents[index].Enabled = true;
-                    }
                 }
             }
 
@@ -101,12 +95,7 @@ namespace Ryujinx.Ava.UI.Windows
             {
                 if (content is DownloadableContentModel model)
                 {
-                    var index = ViewModel.DownloadableContents.IndexOf(model);
+                    ViewModel.Disable(model);
-
-                    if (index != -1)
-                    {
-                        ViewModel.DownloadableContents[index].Enabled = false;
-                    }
                 }
             }
         }

src/Ryujinx/UI/Windows/MainWindow.axaml.cs

@@ -4,6 +4,7 @@ using Avalonia.Controls.Primitives;
 using Avalonia.Interactivity;
 using Avalonia.Platform;
 using Avalonia.Threading;
+using DynamicData;
 using FluentAvalonia.UI.Controls;
 using LibHac.Tools.FsSystem;
 using Ryujinx.Ava.Common;
@@ -26,6 +27,7 @@ using Ryujinx.UI.Common.Configuration;
 using Ryujinx.UI.Common.Helper;
 using System;
 using System.Collections.Generic;
+using System.Reactive.Linq;
 using System.Runtime.Versioning;
 using System.Threading;
 using System.Threading.Tasks;
@@ -45,6 +47,7 @@ namespace Ryujinx.Ava.UI.Windows
         private static string _launchApplicationId;
         private static bool _startFullscreen;
         internal readonly AvaHostUIHandler UiHandler;
+        private IDisposable _appLibraryAppsSubscription;
 
         public VirtualFileSystem VirtualFileSystem { get; private set; }
         public ContentManager ContentManager { get; private set; }
@@ -136,14 +139,6 @@ namespace Ryujinx.Ava.UI.Windows
             Program.DesktopScaleFactor = this.RenderScaling;
         }
 
-        private void ApplicationLibrary_ApplicationAdded(object sender, ApplicationAddedEventArgs e)
-        {
-            Dispatcher.UIThread.Post(() =>
-            {
-                ViewModel.Applications.Add(e.AppData);
-            });
-        }
-
         private void ApplicationLibrary_ApplicationCountUpdated(object sender, ApplicationCountUpdatedEventArgs e)
         {
             LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.StatusBarGamesLoaded, e.NumAppsLoaded, e.NumAppsFound);
@@ -472,7 +467,12 @@ namespace Ryujinx.Ava.UI.Windows
                 this);
 
             ApplicationLibrary.ApplicationCountUpdated += ApplicationLibrary_ApplicationCountUpdated;
-            ApplicationLibrary.ApplicationAdded += ApplicationLibrary_ApplicationAdded;
+            _appLibraryAppsSubscription?.Dispose();
+            _appLibraryAppsSubscription = ApplicationLibrary.Applications
+                    .Connect()
+                    .ObserveOn(SynchronizationContext.Current)
+                    .Bind(ViewModel.Applications)
+                    .Subscribe();
 
             ViewModel.RefreshFirmwareStatus();
 
@@ -575,6 +575,7 @@ namespace Ryujinx.Ava.UI.Windows
 
             ApplicationLibrary.CancelLoading();
             InputManager.Dispose();
+            _appLibraryAppsSubscription?.Dispose();
             Program.Exit();
 
             base.OnClosing(e);
@@ -596,7 +597,6 @@ namespace Ryujinx.Ava.UI.Windows
         public void LoadApplications()
         {
             _applicationsLoadedOnce = true;
-            ViewModel.Applications.Clear();
 
             StatusBarView.LoadProgressBar.IsVisible = true;
             ViewModel.StatusBarProgressMaximum = 0;
@@ -638,8 +638,18 @@ namespace Ryujinx.Ava.UI.Windows
             Thread applicationLibraryThread = new(() =>
             {
                 ApplicationLibrary.DesiredLanguage = ConfigurationState.Instance.System.Language;
+
                 ApplicationLibrary.LoadApplications(ConfigurationState.Instance.UI.GameDirs);
 
+                var autoloadDirs = ConfigurationState.Instance.UI.AutoloadDirs.Value;
+                if (autoloadDirs.Count > 0)
+                {
+                    var updatesLoaded = ApplicationLibrary.AutoLoadTitleUpdates(autoloadDirs);
+                    var dlcLoaded = ApplicationLibrary.AutoLoadDownloadableContents(autoloadDirs);
+
+                    ShowNewContentAddedDialog(dlcLoaded, updatesLoaded);
+                }
+
                 _isLoading = false;
             })
             {
@@ -648,5 +658,33 @@ namespace Ryujinx.Ava.UI.Windows
             };
             applicationLibraryThread.Start();
         }
+
+        private Task ShowNewContentAddedDialog(int numDlcAdded, int numUpdatesAdded)
+        {
+            var msg = "";
+
+            if (numDlcAdded > 0 && numUpdatesAdded > 0)
+            {
+                msg = string.Format(LocaleManager.Instance[LocaleKeys.AutoloadDlcAndUpdateAddedMessage], numDlcAdded, numUpdatesAdded);
+            }
+            else if (numDlcAdded > 0)
+            {
+                msg = string.Format(LocaleManager.Instance[LocaleKeys.AutoloadDlcAddedMessage], numDlcAdded);
+            }
+            else if (numUpdatesAdded > 0)
+            {
+                msg = string.Format(LocaleManager.Instance[LocaleKeys.AutoloadUpdateAddedMessage], numUpdatesAdded);
+            }
+            else
+            {
+                return Task.CompletedTask;
+            }
+
+            return Dispatcher.UIThread.InvokeAsync(async () =>
+            {
+                await ContentDialogHelper.ShowTextDialog(LocaleManager.Instance[LocaleKeys.DialogConfirmationTitle],
+                    msg, "", "", "", LocaleManager.Instance[LocaleKeys.InputDialogOk], (int)Symbol.Checkmark);
+            });
+        }
     }
 }

src/Ryujinx/UI/Windows/SettingsWindow.axaml.cs

@@ -39,7 +39,7 @@ namespace Ryujinx.Ava.UI.Windows
         {
             InputPage.InputView?.SaveCurrentProfile();
 
-            if (Owner is MainWindow window && ViewModel.DirectoryChanged)
+            if (Owner is MainWindow window && (ViewModel.GameDirectoryChanged || ViewModel.AutoloadDirectoryChanged))
             {
                 window.LoadApplications();
             }

src/Ryujinx/UI/Windows/TitleUpdateWindow.axaml

@@ -6,20 +6,42 @@
     xmlns:locale="clr-namespace:Ryujinx.Ava.Common.Locale"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:viewModels="clr-namespace:Ryujinx.Ava.UI.ViewModels"
-    xmlns:models="clr-namespace:Ryujinx.Ava.UI.Models"
+    xmlns:models="clr-namespace:Ryujinx.UI.Common.Models;assembly=Ryujinx.UI.Common"
     xmlns:ui="clr-namespace:FluentAvalonia.UI.Controls;assembly=FluentAvalonia"
+    xmlns:helpers="clr-namespace:Ryujinx.Ava.UI.Helpers"
     Width="500"
     Height="300"
     mc:Ignorable="d"
     x:DataType="viewModels:TitleUpdateViewModel"
     Focusable="True">
+    <UserControl.Resources>
+        <helpers:TitleUpdateLabelConverter x:Key="TitleUpdateLabel" />
+    </UserControl.Resources>
     <Grid>
         <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
             <RowDefinition Height="*" />
             <RowDefinition Height="Auto" />
         </Grid.RowDefinitions>
-        <Border
+        <StackPanel
             Grid.Row="0"
+            Margin="0 0 0 10"
+            Spacing="5"
+            Orientation="Horizontal"
+            IsVisible="{Binding ShowBundledContentNotice}">
+            <ui:FontIcon
+                Margin="0"
+                HorizontalAlignment="Stretch"
+                FontFamily="avares://FluentAvalonia/Fonts#Symbols"
+                Glyph="{helpers:GlyphValueConverter Important}" />
+            <!-- NOTE: aligning to bottom for better visual alignment with glyph -->
+            <TextBlock
+                FontStyle="Italic"
+                VerticalAlignment="Bottom"
+                Text="{locale:Locale UpdateWindowBundledContentNotice}" />
+        </StackPanel>
+        <Border
+            Grid.Row="1"
             Margin="0 0 0 24"
             HorizontalAlignment="Stretch"
             VerticalAlignment="Stretch"
@@ -38,8 +60,14 @@
                             <TextBlock
                                 HorizontalAlignment="Left"
                                 VerticalAlignment="Center"
-                                TextWrapping="Wrap"
+                                TextWrapping="Wrap">
-                                Text="{Binding Label}" />
+                                <TextBlock.Text>
+                                    <MultiBinding Converter="{StaticResource TitleUpdateLabel}">
+                                        <Binding Path="DisplayVersion" />
+                                        <Binding Path="IsBundled" />
+                                    </MultiBinding>
+                                </TextBlock.Text>
+                            </TextBlock>
                             <StackPanel
                                 Spacing="10"
                                 Orientation="Horizontal"
@@ -72,7 +100,7 @@
                         </Panel>
                     </DataTemplate>
                     <DataTemplate
-                        DataType="viewModels:BaseModel">
+                        DataType="viewModels:TitleUpdateViewNoUpdateSentinal">
                         <Panel
                             Height="33"
                             Margin="10">
@@ -92,7 +120,7 @@
             </ListBox>
         </Border>
         <Panel
-            Grid.Row="1"
+            Grid.Row="2"
             HorizontalAlignment="Stretch">
             <StackPanel
                 Orientation="Horizontal"

src/Ryujinx/UI/Windows/TitleUpdateWindow.axaml.cs

@@ -5,11 +5,10 @@ using Avalonia.Interactivity;
 using Avalonia.Styling;
 using FluentAvalonia.UI.Controls;
 using Ryujinx.Ava.Common.Locale;
-using Ryujinx.Ava.UI.Models;
 using Ryujinx.Ava.UI.ViewModels;
-using Ryujinx.HLE.FileSystem;
 using Ryujinx.UI.App.Common;
 using Ryujinx.UI.Common.Helper;
+using Ryujinx.UI.Common.Models;
 using System.Threading.Tasks;
 
 namespace Ryujinx.Ava.UI.Windows
@@ -25,21 +24,21 @@ namespace Ryujinx.Ava.UI.Windows
             InitializeComponent();
         }
 
-        public TitleUpdateWindow(VirtualFileSystem virtualFileSystem, ApplicationData applicationData)
+        public TitleUpdateWindow(ApplicationLibrary applicationLibrary, ApplicationData applicationData)
         {
-            DataContext = ViewModel = new TitleUpdateViewModel(virtualFileSystem, applicationData);
+            DataContext = ViewModel = new TitleUpdateViewModel(applicationLibrary, applicationData);
 
             InitializeComponent();
         }
 
-        public static async Task Show(VirtualFileSystem virtualFileSystem, ApplicationData applicationData)
+        public static async Task Show(ApplicationLibrary applicationLibrary, ApplicationData applicationData)
         {
             ContentDialog contentDialog = new()
             {
                 PrimaryButtonText = "",
                 SecondaryButtonText = "",
                 CloseButtonText = "",
-                Content = new TitleUpdateWindow(virtualFileSystem, applicationData),
+                Content = new TitleUpdateWindow(applicationLibrary, applicationData),
                 Title = LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.GameUpdateWindowHeading, applicationData.Name, applicationData.IdBaseString),
             };
 
@@ -60,17 +59,6 @@ namespace Ryujinx.Ava.UI.Windows
         {
             ViewModel.Save();
 
-            if (Application.Current?.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime al)
-            {
-                foreach (Window window in al.Windows)
-                {
-                    if (window is MainWindow mainWindow)
-                    {
-                        mainWindow.LoadApplications();
-                    }
-                }
-            }
-
             ((ContentDialog)Parent).Hide();
         }