Move solution and projects to src

src/Ryujinx.Ava/UI/ViewModels/AboutWindowViewModel.cs

@@ -0,0 +1,133 @@
+using Avalonia;
+using Avalonia.Media.Imaging;
+using Avalonia.Threading;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Common.Utilities;
+using Ryujinx.Ui.Common.Configuration;
+using System;
+using System.Net.Http;
+using System.Net.NetworkInformation;
+using System.Threading.Tasks;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class AboutWindowViewModel : BaseModel
+    {
+        private Bitmap _githubLogo;
+        private Bitmap _discordLogo;
+        private Bitmap _patreonLogo;
+        private Bitmap _twitterLogo;
+
+        private string _version;
+        private string _supporters;
+
+        public Bitmap GithubLogo
+        {
+            get => _githubLogo;
+            set
+            {
+                _githubLogo = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public Bitmap DiscordLogo
+        {
+            get => _discordLogo;
+            set
+            {
+                _discordLogo = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public Bitmap PatreonLogo
+        {
+            get => _patreonLogo;
+            set
+            {
+                _patreonLogo = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public Bitmap TwitterLogo
+        {
+            get => _twitterLogo;
+            set
+            {
+                _twitterLogo = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public string Supporters
+        {
+            get => _supporters;
+            set
+            {
+                _supporters = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public string Version
+        {
+            get => _version;
+            set
+            {
+                _version = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public string Developers => LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.AboutPageDeveloperListMore, "gdkchan, Ac_K, marysaka, rip in peri peri, LDj3SNuD, emmaus, Thealexbarney, GoffyDude, TSRBerry, IsaacMarovitz");
+
+        public AboutWindowViewModel()
+        {
+            Version = Program.Version;
+
+            var assets = AvaloniaLocator.Current.GetService<Avalonia.Platform.IAssetLoader>();
+
+            if (ConfigurationState.Instance.Ui.BaseStyle.Value == "Light")
+            {
+                GithubLogo = new Bitmap(assets.Open(new Uri("resm:Ryujinx.Ui.Common.Resources.Logo_GitHub_Light.png?assembly=Ryujinx.Ui.Common")));
+                DiscordLogo = new Bitmap(assets.Open(new Uri("resm:Ryujinx.Ui.Common.Resources.Logo_Discord_Light.png?assembly=Ryujinx.Ui.Common")));
+                PatreonLogo = new Bitmap(assets.Open(new Uri("resm:Ryujinx.Ui.Common.Resources.Logo_Patreon_Light.png?assembly=Ryujinx.Ui.Common")));
+                TwitterLogo = new Bitmap(assets.Open(new Uri("resm:Ryujinx.Ui.Common.Resources.Logo_Twitter_Light.png?assembly=Ryujinx.Ui.Common")));
+            }
+            else
+            {
+                GithubLogo = new Bitmap(assets.Open(new Uri("resm:Ryujinx.Ui.Common.Resources.Logo_GitHub_Dark.png?assembly=Ryujinx.Ui.Common")));
+                DiscordLogo = new Bitmap(assets.Open(new Uri("resm:Ryujinx.Ui.Common.Resources.Logo_Discord_Dark.png?assembly=Ryujinx.Ui.Common")));
+                PatreonLogo = new Bitmap(assets.Open(new Uri("resm:Ryujinx.Ui.Common.Resources.Logo_Patreon_Dark.png?assembly=Ryujinx.Ui.Common")));
+                TwitterLogo = new Bitmap(assets.Open(new Uri("resm:Ryujinx.Ui.Common.Resources.Logo_Twitter_Dark.png?assembly=Ryujinx.Ui.Common")));
+            }
+
+            Dispatcher.UIThread.InvokeAsync(DownloadPatronsJson);
+        }
+
+        private async Task DownloadPatronsJson()
+        {
+            if (!NetworkInterface.GetIsNetworkAvailable())
+            {
+                Supporters = LocaleManager.Instance[LocaleKeys.ConnectionError];
+
+                return;
+            }
+
+            HttpClient httpClient = new();
+
+            try
+            {
+                string patreonJsonString = await httpClient.GetStringAsync("https://patreon.ryujinx.org/");
+
+                Supporters = string.Join(", ", JsonHelper.Deserialize(patreonJsonString, CommonJsonContext.Default.StringArray)) + "\n\n";
+            }
+            catch
+            {
+                Supporters = LocaleManager.Instance[LocaleKeys.ApiError];
+            }
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/AmiiboWindowViewModel.cs

@@ -0,0 +1,467 @@
+using Avalonia;
+using Avalonia.Collections;
+using Avalonia.Media.Imaging;
+using Avalonia.Threading;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.Helpers;
+using Ryujinx.Ava.UI.Windows;
+using Ryujinx.Common;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Logging;
+using Ryujinx.Common.Utilities;
+using Ryujinx.Ui.Common.Models.Amiibo;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IO;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+using AmiiboJsonSerializerContext = Ryujinx.Ui.Common.Models.Amiibo.AmiiboJsonSerializerContext;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class AmiiboWindowViewModel : BaseModel, IDisposable
+    {
+        private const string DefaultJson = "{ \"amiibo\": [] }";
+        private const float AmiiboImageSize = 350f;
+
+        private readonly string _amiiboJsonPath;
+        private readonly byte[] _amiiboLogoBytes;
+        private readonly HttpClient _httpClient;
+        private readonly StyleableWindow _owner;
+
+        private Bitmap _amiiboImage;
+        private List<AmiiboApi> _amiiboList;
+        private AvaloniaList<AmiiboApi> _amiibos;
+        private ObservableCollection<string> _amiiboSeries;
+
+        private int _amiiboSelectedIndex;
+        private int _seriesSelectedIndex;
+        private bool _enableScanning;
+        private bool _showAllAmiibo;
+        private bool _useRandomUuid;
+        private string _usage;
+
+        private static readonly AmiiboJsonSerializerContext SerializerContext = new(JsonHelper.GetDefaultSerializerOptions());
+
+        public AmiiboWindowViewModel(StyleableWindow owner, string lastScannedAmiiboId, string titleId)
+        {
+            _owner = owner;
+
+            _httpClient = new HttpClient
+            {
+                Timeout = TimeSpan.FromSeconds(30)
+            };
+
+            LastScannedAmiiboId = lastScannedAmiiboId;
+            TitleId = titleId;
+
+            Directory.CreateDirectory(Path.Join(AppDataManager.BaseDirPath, "system", "amiibo"));
+
+            _amiiboJsonPath = Path.Join(AppDataManager.BaseDirPath, "system", "amiibo", "Amiibo.json");
+            _amiiboList = new List<AmiiboApi>();
+            _amiiboSeries = new ObservableCollection<string>();
+            _amiibos = new AvaloniaList<AmiiboApi>();
+
+            _amiiboLogoBytes = EmbeddedResources.Read("Ryujinx.Ui.Common/Resources/Logo_Amiibo.png");
+
+            _ = LoadContentAsync();
+        }
+
+        public AmiiboWindowViewModel() { }
+
+        public string TitleId { get; set; }
+        public string LastScannedAmiiboId { get; set; }
+
+        public UserResult Response { get; private set; }
+
+        public bool UseRandomUuid
+        {
+            get => _useRandomUuid;
+            set
+            {
+                _useRandomUuid = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public bool ShowAllAmiibo
+        {
+            get => _showAllAmiibo;
+            set
+            {
+                _showAllAmiibo = value;
+
+                ParseAmiiboData();
+
+                OnPropertyChanged();
+            }
+        }
+
+        public AvaloniaList<AmiiboApi> AmiiboList
+        {
+            get => _amiibos;
+            set
+            {
+                _amiibos = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public ObservableCollection<string> AmiiboSeries
+        {
+            get => _amiiboSeries;
+            set
+            {
+                _amiiboSeries = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public int SeriesSelectedIndex
+        {
+            get => _seriesSelectedIndex;
+            set
+            {
+                _seriesSelectedIndex = value;
+
+                FilterAmiibo();
+
+                OnPropertyChanged();
+            }
+        }
+
+        public int AmiiboSelectedIndex
+        {
+            get => _amiiboSelectedIndex;
+            set
+            {
+                _amiiboSelectedIndex = value;
+
+                EnableScanning = _amiiboSelectedIndex >= 0 && _amiiboSelectedIndex < _amiibos.Count;
+
+                SetAmiiboDetails();
+
+                OnPropertyChanged();
+            }
+        }
+
+        public Bitmap AmiiboImage
+        {
+            get => _amiiboImage;
+            set
+            {
+                _amiiboImage = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public string Usage
+        {
+            get => _usage;
+            set
+            {
+                _usage = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public bool EnableScanning
+        {
+            get => _enableScanning;
+            set
+            {
+                _enableScanning = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public void Dispose()
+        {
+            _httpClient.Dispose();
+        }
+
+        private async Task LoadContentAsync()
+        {
+            string amiiboJsonString = DefaultJson;
+
+            if (File.Exists(_amiiboJsonPath))
+            {
+                amiiboJsonString = await File.ReadAllTextAsync(_amiiboJsonPath);
+
+                if (await NeedsUpdate(JsonHelper.Deserialize(amiiboJsonString, SerializerContext.AmiiboJson).LastUpdated))
+                {
+                    amiiboJsonString = await DownloadAmiiboJson();
+                }
+            }
+            else
+            {
+                try
+                {
+                    amiiboJsonString = await DownloadAmiiboJson();
+                }
+                catch (Exception ex)
+                {
+                    Logger.Error?.Print(LogClass.Application, $"Failed to download amiibo data: {ex}");
+
+                    ShowInfoDialog();
+                }
+            }
+
+            _amiiboList = JsonHelper.Deserialize(amiiboJsonString, SerializerContext.AmiiboJson).Amiibo;
+            _amiiboList = _amiiboList.OrderBy(amiibo => amiibo.AmiiboSeries).ToList();
+
+            ParseAmiiboData();
+        }
+
+        private void ParseAmiiboData()
+        {
+            _amiiboSeries.Clear();
+            _amiibos.Clear();
+
+            for (int i = 0; i < _amiiboList.Count; i++)
+            {
+                if (!_amiiboSeries.Contains(_amiiboList[i].AmiiboSeries))
+                {
+                    if (!ShowAllAmiibo)
+                    {
+                        foreach (AmiiboApiGamesSwitch game in _amiiboList[i].GamesSwitch)
+                        {
+                            if (game != null)
+                            {
+                                if (game.GameId.Contains(TitleId))
+                                {
+                                    AmiiboSeries.Add(_amiiboList[i].AmiiboSeries);
+
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                    else
+                    {
+                        AmiiboSeries.Add(_amiiboList[i].AmiiboSeries);
+                    }
+                }
+            }
+
+            if (LastScannedAmiiboId != "")
+            {
+                SelectLastScannedAmiibo();
+            }
+            else
+            {
+                SeriesSelectedIndex = 0;
+            }
+        }
+
+        private void SelectLastScannedAmiibo()
+        {
+            AmiiboApi scanned = _amiiboList.FirstOrDefault(amiibo => amiibo.GetId() == LastScannedAmiiboId);
+
+            SeriesSelectedIndex = AmiiboSeries.IndexOf(scanned.AmiiboSeries);
+            AmiiboSelectedIndex = AmiiboList.IndexOf(scanned);
+        }
+
+        private void FilterAmiibo()
+        {
+            _amiibos.Clear();
+
+            if (_seriesSelectedIndex < 0)
+            {
+                return;
+            }
+
+            List<AmiiboApi> amiiboSortedList = _amiiboList
+                .Where(amiibo => amiibo.AmiiboSeries == _amiiboSeries[SeriesSelectedIndex])
+                .OrderBy(amiibo => amiibo.Name).ToList();
+
+            for (int i = 0; i < amiiboSortedList.Count; i++)
+            {
+                if (!_amiibos.Contains(amiiboSortedList[i]))
+                {
+                    if (!_showAllAmiibo)
+                    {
+                        foreach (AmiiboApiGamesSwitch game in amiiboSortedList[i].GamesSwitch)
+                        {
+                            if (game != null)
+                            {
+                                if (game.GameId.Contains(TitleId))
+                                {
+                                    _amiibos.Add(amiiboSortedList[i]);
+
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                    else
+                    {
+                        _amiibos.Add(amiiboSortedList[i]);
+                    }
+                }
+            }
+
+            AmiiboSelectedIndex = 0;
+        }
+
+        private void SetAmiiboDetails()
+        {
+            ResetAmiiboPreview();
+
+            Usage = string.Empty;
+
+            if (_amiiboSelectedIndex < 0)
+            {
+                return;
+            }
+
+            AmiiboApi selected = _amiibos[_amiiboSelectedIndex];
+
+            string imageUrl = _amiiboList.FirstOrDefault(amiibo => amiibo.Equals(selected)).Image;
+
+            string usageString = "";
+
+            for (int i = 0; i < _amiiboList.Count; i++)
+            {
+                if (_amiiboList[i].Equals(selected))
+                {
+                    bool writable = false;
+
+                    foreach (AmiiboApiGamesSwitch item in _amiiboList[i].GamesSwitch)
+                    {
+                        if (item.GameId.Contains(TitleId))
+                        {
+                            foreach (AmiiboApiUsage usageItem in item.AmiiboUsage)
+                            {
+                                usageString += Environment.NewLine +
+                                               $"- {usageItem.Usage.Replace("/", Environment.NewLine + "-")}";
+
+                                writable = usageItem.Write;
+                            }
+                        }
+                    }
+
+                    if (usageString.Length == 0)
+                    {
+                        usageString = LocaleManager.Instance[LocaleKeys.Unknown] + ".";
+                    }
+
+                    Usage = $"{LocaleManager.Instance[LocaleKeys.Usage]} {(writable ? $" ({LocaleManager.Instance[LocaleKeys.Writable]})" : "")} : {usageString}";
+                }
+            }
+
+            _ = UpdateAmiiboPreview(imageUrl);
+        }
+
+        private async Task<bool> NeedsUpdate(DateTime oldLastModified)
+        {
+            try
+            {
+                HttpResponseMessage response =
+                    await _httpClient.SendAsync(new HttpRequestMessage(HttpMethod.Head, "https://amiibo.ryujinx.org/"));
+
+                if (response.IsSuccessStatusCode)
+                {
+                    return response.Content.Headers.LastModified != oldLastModified;
+                }
+
+                return false;
+            }
+            catch (Exception ex)
+            {
+                Logger.Error?.Print(LogClass.Application, $"Failed to check for amiibo updates: {ex}");
+
+                ShowInfoDialog();
+
+                return false;
+            }
+        }
+
+        private async Task<string> DownloadAmiiboJson()
+        {
+            HttpResponseMessage response = await _httpClient.GetAsync("https://amiibo.ryujinx.org/");
+
+            if (response.IsSuccessStatusCode)
+            {
+                string amiiboJsonString = await response.Content.ReadAsStringAsync();
+
+                using (FileStream amiiboJsonStream = File.Create(_amiiboJsonPath, 4096, FileOptions.WriteThrough))
+                {
+                    amiiboJsonStream.Write(Encoding.UTF8.GetBytes(amiiboJsonString));
+                }
+
+                return amiiboJsonString;
+            }
+
+            Logger.Error?.Print(LogClass.Application, $"Failed to download amiibo data. Response status code: {response.StatusCode}");
+
+            await ContentDialogHelper.CreateInfoDialog(LocaleManager.Instance[LocaleKeys.DialogAmiiboApiTitle],
+                LocaleManager.Instance[LocaleKeys.DialogAmiiboApiFailFetchMessage],
+                LocaleManager.Instance[LocaleKeys.InputDialogOk],
+                "",
+                LocaleManager.Instance[LocaleKeys.RyujinxInfo]);
+
+            Close();
+
+            return DefaultJson;
+        }
+
+        private void Close()
+        {
+            Dispatcher.UIThread.Post(_owner.Close);
+        }
+
+        private async Task UpdateAmiiboPreview(string imageUrl)
+        {
+            HttpResponseMessage response = await _httpClient.GetAsync(imageUrl);
+
+            if (response.IsSuccessStatusCode)
+            {
+                byte[] amiiboPreviewBytes = await response.Content.ReadAsByteArrayAsync();
+                using (MemoryStream memoryStream = new(amiiboPreviewBytes))
+                {
+                    Bitmap bitmap = new(memoryStream);
+
+                    double ratio = Math.Min(AmiiboImageSize / bitmap.Size.Width,
+                        AmiiboImageSize / bitmap.Size.Height);
+
+                    int resizeHeight = (int)(bitmap.Size.Height * ratio);
+                    int resizeWidth = (int)(bitmap.Size.Width * ratio);
+
+                    AmiiboImage = bitmap.CreateScaledBitmap(new PixelSize(resizeWidth, resizeHeight));
+                }
+            }
+            else
+            {
+                Logger.Error?.Print(LogClass.Application, $"Failed to get amiibo preview. Response status code: {response.StatusCode}");
+            }
+        }
+
+        private void ResetAmiiboPreview()
+        {
+            using (MemoryStream memoryStream = new(_amiiboLogoBytes))
+            {
+                Bitmap bitmap = new(memoryStream);
+
+                AmiiboImage = bitmap;
+            }
+        }
+
+        private async void ShowInfoDialog()
+        {
+            await ContentDialogHelper.CreateInfoDialog(LocaleManager.Instance[LocaleKeys.DialogAmiiboApiTitle],
+                LocaleManager.Instance[LocaleKeys.DialogAmiiboApiConnectErrorMessage],
+                LocaleManager.Instance[LocaleKeys.InputDialogOk],
+                "",
+                LocaleManager.Instance[LocaleKeys.RyujinxInfo]);
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/AvatarProfileViewModel.cs

@@ -0,0 +1,363 @@
+using Avalonia.Media;
+using DynamicData;
+using LibHac.Common;
+using LibHac.Fs;
+using LibHac.Fs.Fsa;
+using LibHac.FsSystem;
+using LibHac.Ncm;
+using LibHac.Tools.Fs;
+using LibHac.Tools.FsSystem;
+using LibHac.Tools.FsSystem.NcaUtils;
+using Ryujinx.Ava.UI.Models;
+using Ryujinx.HLE.FileSystem;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.Formats.Png;
+using SixLabors.ImageSharp.PixelFormats;
+using SixLabors.ImageSharp.Processing;
+using System;
+using System.Buffers.Binary;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IO;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Color = Avalonia.Media.Color;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    internal class AvatarProfileViewModel : BaseModel, IDisposable
+    {
+        private const int MaxImageTasks = 4;
+        
+        private static readonly Dictionary<string, byte[]> _avatarStore = new();
+        private static bool _isPreloading;
+        private static Action _loadCompleteAction;
+
+        private ObservableCollection<ProfileImageModel> _images;
+        private Color _backgroundColor = Colors.White;
+
+        private int _selectedIndex;
+        private int _imagesLoaded;
+        private bool _isActive;
+        private byte[] _selectedImage;
+        private bool _isIndeterminate = true;
+
+        public bool IsActive
+        {
+            get => _isActive;
+            set => _isActive = value;
+        }
+
+        public AvatarProfileViewModel()
+        {
+            _images = new ObservableCollection<ProfileImageModel>();
+        }
+        
+        public AvatarProfileViewModel(Action loadCompleteAction)
+        {
+            _images = new ObservableCollection<ProfileImageModel>();
+
+            if (_isPreloading)
+            {
+                _loadCompleteAction = loadCompleteAction;
+            }
+            else
+            {
+                ReloadImages();
+            }
+        }
+
+        public Color BackgroundColor
+        {
+            get => _backgroundColor;
+            set
+            {
+                _backgroundColor = value;
+
+                IsActive = false;
+                
+                ReloadImages();
+            }
+        }
+
+        public ObservableCollection<ProfileImageModel> Images
+        {
+            get => _images;
+            set
+            {
+                _images = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public bool IsIndeterminate
+        {
+            get => _isIndeterminate;
+            set
+            {
+                _isIndeterminate = value;
+                
+                OnPropertyChanged();
+            }
+        }
+
+        public int ImageCount => _avatarStore.Count;
+
+        public int ImagesLoaded
+        {
+            get => _imagesLoaded;
+            set
+            {
+                _imagesLoaded = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public int SelectedIndex
+        {
+            get => _selectedIndex;
+            set
+            {
+                _selectedIndex = value;
+
+                if (_selectedIndex == -1)
+                {
+                    SelectedImage = null;
+                }
+                else
+                {
+                    SelectedImage = _images[_selectedIndex].Data;
+                }
+
+                OnPropertyChanged();
+            }
+        }
+
+        public byte[] SelectedImage
+        {
+            get => _selectedImage;
+            private set => _selectedImage = value;
+        }
+
+        public void ReloadImages()
+        {
+            if (_isPreloading)
+            {
+                IsIndeterminate = false;
+                return;
+            }
+            Task.Run(() =>
+            {
+                IsActive = true;
+
+                Images.Clear();
+                int selectedIndex = _selectedIndex;
+                int index = 0;
+                
+                ImagesLoaded = 0;
+                IsIndeterminate = false;
+
+                var keys = _avatarStore.Keys.ToList();
+
+                var newImages = new List<ProfileImageModel>();
+                var tasks = new List<Task>();
+
+                for (int i = 0; i < MaxImageTasks; i++)
+                {
+                    var start = i;
+                    tasks.Add(Task.Run(() => ImageTask(start)));
+                }
+
+                Task.WaitAll(tasks.ToArray());
+                
+                Images.AddRange(newImages);
+
+                void ImageTask(int start)
+                {
+                    for (int i = start; i < keys.Count; i += MaxImageTasks)
+                    {
+                        if (!IsActive)
+                        {
+                            return;
+                        }
+
+                        var key = keys[i];
+                        var image = _avatarStore[keys[i]];
+
+                        var data = ProcessImage(image);
+                        newImages.Add(new ProfileImageModel(key, data));
+                        if (index++ == selectedIndex)
+                        {
+                            SelectedImage = data;
+                        }
+
+                        Interlocked.Increment(ref _imagesLoaded);
+                        OnPropertyChanged(nameof(ImagesLoaded));
+                    }
+                }
+            });
+        }
+
+        private byte[] ProcessImage(byte[] data)
+        {
+            using (MemoryStream streamJpg = new())
+            {
+                Image avatarImage = Image.Load(data, new PngDecoder());
+
+                avatarImage.Mutate(x => x.BackgroundColor(new Rgba32(BackgroundColor.R,
+                    BackgroundColor.G,
+                    BackgroundColor.B,
+                    BackgroundColor.A)));
+                avatarImage.SaveAsJpeg(streamJpg);
+
+                return streamJpg.ToArray();
+            }
+        }
+
+        public static void PreloadAvatars(ContentManager contentManager, VirtualFileSystem virtualFileSystem)
+        {
+            try
+            {
+                if (_avatarStore.Count > 0)
+                {
+                    return;
+                }
+
+                _isPreloading = true;
+
+                string contentPath =
+                    contentManager.GetInstalledContentPath(0x010000000000080A, StorageId.BuiltInSystem,
+                        NcaContentType.Data);
+                string avatarPath = virtualFileSystem.SwitchPathToSystemPath(contentPath);
+
+                if (!string.IsNullOrWhiteSpace(avatarPath))
+                {
+                    using (IStorage ncaFileStream = new LocalStorage(avatarPath, FileAccess.Read, FileMode.Open))
+                    {
+                        Nca nca = new(virtualFileSystem.KeySet, ncaFileStream);
+                        IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.ErrorOnInvalid);
+
+                        foreach (DirectoryEntryEx item in romfs.EnumerateEntries())
+                        {
+                            // TODO: Parse DatabaseInfo.bin and table.bin files for more accuracy.
+                            if (item.Type == DirectoryEntryType.File && item.FullPath.Contains("chara") &&
+                                item.FullPath.Contains("szs"))
+                            {
+                                using var file = new UniqueRef<IFile>();
+
+                                romfs.OpenFile(ref file.Ref, ("/" + item.FullPath).ToU8Span(), OpenMode.Read)
+                                    .ThrowIfFailure();
+
+                                using (MemoryStream stream = new())
+                                using (MemoryStream streamPng = new())
+                                {
+                                    file.Get.AsStream().CopyTo(stream);
+
+                                    stream.Position = 0;
+
+                                    Image avatarImage = Image.LoadPixelData<Rgba32>(DecompressYaz0(stream), 256, 256);
+
+                                    avatarImage.SaveAsPng(streamPng);
+
+                                    _avatarStore.Add(item.FullPath, streamPng.ToArray());
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            finally
+            {
+                _isPreloading = false;
+                _loadCompleteAction?.Invoke();
+            }
+        }
+
+        private static byte[] DecompressYaz0(Stream stream)
+        {
+            using (BinaryReader reader = new(stream))
+            {
+                reader.ReadInt32(); // Magic
+
+                uint decodedLength = BinaryPrimitives.ReverseEndianness(reader.ReadUInt32());
+
+                reader.ReadInt64(); // Padding
+
+                byte[] input = new byte[stream.Length - stream.Position];
+                stream.Read(input, 0, input.Length);
+
+                uint inputOffset = 0;
+
+                byte[] output = new byte[decodedLength];
+                uint outputOffset = 0;
+
+                ushort mask = 0;
+                byte header = 0;
+
+                while (outputOffset < decodedLength)
+                {
+                    if ((mask >>= 1) == 0)
+                    {
+                        header = input[inputOffset++];
+                        mask = 0x80;
+                    }
+
+                    if ((header & mask) != 0)
+                    {
+                        if (outputOffset == output.Length)
+                        {
+                            break;
+                        }
+
+                        output[outputOffset++] = input[inputOffset++];
+                    }
+                    else
+                    {
+                        byte byte1 = input[inputOffset++];
+                        byte byte2 = input[inputOffset++];
+
+                        uint dist = (uint)((byte1 & 0xF) << 8) | byte2;
+                        uint position = outputOffset - (dist + 1);
+
+                        uint length = (uint)byte1 >> 4;
+                        if (length == 0)
+                        {
+                            length = (uint)input[inputOffset++] + 0x12;
+                        }
+                        else
+                        {
+                            length += 2;
+                        }
+
+                        uint gap = outputOffset - position;
+                        uint nonOverlappingLength = length;
+
+                        if (nonOverlappingLength > gap)
+                        {
+                            nonOverlappingLength = gap;
+                        }
+
+                        Buffer.BlockCopy(output, (int)position, output, (int)outputOffset, (int)nonOverlappingLength);
+                        outputOffset += nonOverlappingLength;
+                        position += nonOverlappingLength;
+                        length -= nonOverlappingLength;
+
+                        while (length-- > 0)
+                        {
+                            output[outputOffset++] = output[position++];
+                        }
+                    }
+                }
+
+                return output;
+            }
+        }
+
+        public void Dispose()
+        {
+            _loadCompleteAction = null;
+            IsActive = false;
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/BaseModel.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class BaseModel : INotifyPropertyChanged
+    {
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/ControllerSettingsViewModel.cs

@@ -0,0 +1,899 @@
+using Avalonia.Collections;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Svg.Skia;
+using Avalonia.Threading;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.Input;
+using Ryujinx.Ava.UI.Helpers;
+using Ryujinx.Ava.UI.Models;
+using Ryujinx.Ava.UI.Windows;
+using Ryujinx.Common;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.Configuration.Hid.Controller;
+using Ryujinx.Common.Configuration.Hid.Controller.Motion;
+using Ryujinx.Common.Configuration.Hid.Keyboard;
+using Ryujinx.Common.Logging;
+using Ryujinx.Common.Utilities;
+using Ryujinx.Input;
+using Ryujinx.Ui.Common.Configuration;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IO;
+using System.Linq;
+using System.Text.Json;
+using ConfigGamepadInputId = Ryujinx.Common.Configuration.Hid.Controller.GamepadInputId;
+using ConfigStickInputId = Ryujinx.Common.Configuration.Hid.Controller.StickInputId;
+using Key = Ryujinx.Common.Configuration.Hid.Key;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class ControllerSettingsViewModel : BaseModel, IDisposable
+    {
+        private const string Disabled = "disabled";
+        private const string ProControllerResource = "Ryujinx.Ui.Common/Resources/Controller_ProCon.svg";
+        private const string JoyConPairResource = "Ryujinx.Ui.Common/Resources/Controller_JoyConPair.svg";
+        private const string JoyConLeftResource = "Ryujinx.Ui.Common/Resources/Controller_JoyConLeft.svg";
+        private const string JoyConRightResource = "Ryujinx.Ui.Common/Resources/Controller_JoyConRight.svg";
+        private const string KeyboardString = "keyboard";
+        private const string ControllerString = "controller";
+        private readonly MainWindow _mainWindow;
+
+        private PlayerIndex _playerId;
+        private int _controller;
+        private int _controllerNumber = 0;
+        private string _controllerImage;
+        private int _device;
+        private object _configuration;
+        private string _profileName;
+        private bool _isLoaded;
+        private readonly UserControl _owner;
+
+        private static readonly InputConfigJsonSerializerContext SerializerContext = new(JsonHelper.GetDefaultSerializerOptions());
+
+        public IGamepadDriver AvaloniaKeyboardDriver { get; }
+        public IGamepad SelectedGamepad { get; private set; }
+
+        public ObservableCollection<PlayerModel> PlayerIndexes { get; set; }
+        public ObservableCollection<(DeviceType Type, string Id, string Name)> Devices { get; set; }
+        internal ObservableCollection<ControllerModel> Controllers { get; set; }
+        public AvaloniaList<string> ProfilesList { get; set; }
+        public AvaloniaList<string> DeviceList { get; set; }
+
+        // XAML Flags
+        public bool ShowSettings => _device > 0;
+        public bool IsController => _device > 1;
+        public bool IsKeyboard => !IsController;
+        public bool IsRight { get; set; }
+        public bool IsLeft { get; set; }
+
+        public bool IsModified { get; set; }
+
+        public object Configuration
+        {
+            get => _configuration;
+            set
+            {
+                _configuration = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public PlayerIndex PlayerId
+        {
+            get => _playerId;
+            set
+            {
+                if (IsModified)
+                {
+                    return;
+                }
+
+                IsModified = false;
+                _playerId = value;
+
+                if (!Enum.IsDefined(typeof(PlayerIndex), _playerId))
+                {
+                    _playerId = PlayerIndex.Player1;
+                }
+
+                LoadConfiguration();
+                LoadDevice();
+                LoadProfiles();
+
+                _isLoaded = true;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public int Controller
+        {
+            get => _controller;
+            set
+            {
+                _controller = value;
+
+                if (_controller == -1)
+                {
+                    _controller = 0;
+                }
+
+                if (Controllers.Count > 0 && value < Controllers.Count && _controller > -1)
+                {
+                    ControllerType controller = Controllers[_controller].Type;
+
+                    IsLeft = true;
+                    IsRight = true;
+
+                    switch (controller)
+                    {
+                        case ControllerType.Handheld:
+                            ControllerImage = JoyConPairResource;
+                            break;
+                        case ControllerType.ProController:
+                            ControllerImage = ProControllerResource;
+                            break;
+                        case ControllerType.JoyconPair:
+                            ControllerImage = JoyConPairResource;
+                            break;
+                        case ControllerType.JoyconLeft:
+                            ControllerImage = JoyConLeftResource;
+                            IsRight = false;
+                            break;
+                        case ControllerType.JoyconRight:
+                            ControllerImage = JoyConRightResource;
+                            IsLeft = false;
+                            break;
+                    }
+
+                    LoadInputDriver();
+                    LoadProfiles();
+                }
+
+                OnPropertyChanged();
+                NotifyChanges();
+            }
+        }
+
+        public string ControllerImage
+        {
+            get => _controllerImage;
+            set
+            {
+                _controllerImage = value;
+
+                OnPropertyChanged();
+                OnPropertyChanged(nameof(Image));
+            }
+        }
+
+        public SvgImage Image
+        {
+            get
+            {
+                SvgImage image = new SvgImage();
+
+                if (!string.IsNullOrWhiteSpace(_controllerImage))
+                {
+                    SvgSource source = new SvgSource();
+
+                    source.Load(EmbeddedResources.GetStream(_controllerImage));
+
+                    image.Source = source;
+                }
+
+                return image;
+            }
+        }
+
+        public string ProfileName
+        {
+            get => _profileName; set
+            {
+                _profileName = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public int Device
+        {
+            get => _device;
+            set
+            {
+                _device = value < 0 ? 0 : value;
+
+                if (_device >= Devices.Count)
+                {
+                    return;
+                }
+
+                var selected = Devices[_device].Type;
+
+                if (selected != DeviceType.None)
+                {
+                    LoadControllers();
+
+                    if (_isLoaded)
+                    {
+                        LoadConfiguration(LoadDefaultConfiguration());
+                    }
+                }
+
+                OnPropertyChanged();
+                NotifyChanges();
+            }
+        }
+
+        public InputConfig Config { get; set; }
+
+        public ControllerSettingsViewModel(UserControl owner) : this()
+        {
+            _owner = owner;
+
+            if (Program.PreviewerDetached)
+            {
+                _mainWindow =
+                    (MainWindow)((IClassicDesktopStyleApplicationLifetime)Avalonia.Application.Current
+                        .ApplicationLifetime).MainWindow;
+
+                AvaloniaKeyboardDriver = new AvaloniaKeyboardDriver(owner);
+
+                _mainWindow.InputManager.GamepadDriver.OnGamepadConnected += HandleOnGamepadConnected;
+                _mainWindow.InputManager.GamepadDriver.OnGamepadDisconnected += HandleOnGamepadDisconnected;
+                if (_mainWindow.ViewModel.AppHost != null)
+                {
+                    _mainWindow.ViewModel.AppHost.NpadManager.BlockInputUpdates();
+                }
+
+                _isLoaded = false;
+
+                LoadDevices();
+
+                PlayerId = PlayerIndex.Player1;
+            }
+        }
+
+        public ControllerSettingsViewModel()
+        {
+            PlayerIndexes = new ObservableCollection<PlayerModel>();
+            Controllers = new ObservableCollection<ControllerModel>();
+            Devices = new ObservableCollection<(DeviceType Type, string Id, string Name)>();
+            ProfilesList = new AvaloniaList<string>();
+            DeviceList = new AvaloniaList<string>();
+
+            ControllerImage = ProControllerResource;
+
+            PlayerIndexes.Add(new(PlayerIndex.Player1, LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer1]));
+            PlayerIndexes.Add(new(PlayerIndex.Player2, LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer2]));
+            PlayerIndexes.Add(new(PlayerIndex.Player3, LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer3]));
+            PlayerIndexes.Add(new(PlayerIndex.Player4, LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer4]));
+            PlayerIndexes.Add(new(PlayerIndex.Player5, LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer5]));
+            PlayerIndexes.Add(new(PlayerIndex.Player6, LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer6]));
+            PlayerIndexes.Add(new(PlayerIndex.Player7, LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer7]));
+            PlayerIndexes.Add(new(PlayerIndex.Player8, LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer8]));
+            PlayerIndexes.Add(new(PlayerIndex.Handheld, LocaleManager.Instance[LocaleKeys.ControllerSettingsHandheld]));
+        }
+
+        private void LoadConfiguration(InputConfig inputConfig = null)
+        {
+            Config = inputConfig ?? ConfigurationState.Instance.Hid.InputConfig.Value.Find(inputConfig => inputConfig.PlayerIndex == _playerId);
+
+            if (Config is StandardKeyboardInputConfig keyboardInputConfig)
+            {
+                Configuration = new InputConfiguration<Key, ConfigStickInputId>(keyboardInputConfig);
+            }
+
+            if (Config is StandardControllerInputConfig controllerInputConfig)
+            {
+                Configuration = new InputConfiguration<ConfigGamepadInputId, ConfigStickInputId>(controllerInputConfig);
+            }
+        }
+
+        public void LoadDevice()
+        {
+            if (Config == null || Config.Backend == InputBackendType.Invalid)
+            {
+                Device = 0;
+            }
+            else
+            {
+                var type = DeviceType.None;
+
+                if (Config is StandardKeyboardInputConfig)
+                {
+                    type = DeviceType.Keyboard;
+                }
+
+                if (Config is StandardControllerInputConfig)
+                {
+                    type = DeviceType.Controller;
+                }
+
+                var item = Devices.FirstOrDefault(x => x.Type == type && x.Id == Config.Id);
+                if (item != default)
+                {
+                    Device = Devices.ToList().FindIndex(x => x.Id == item.Id);
+                }
+                else
+                {
+                    Device = 0;
+                }
+            }
+        }
+
+        public async void ShowMotionConfig()
+        {
+            await MotionSettingsWindow.Show(this);
+        }
+
+        public async void ShowRumbleConfig()
+        {
+            await RumbleSettingsWindow.Show(this);
+        }
+
+        private void LoadInputDriver()
+        {
+            if (_device < 0)
+            {
+                return;
+            }
+
+            string id = GetCurrentGamepadId();
+            var type = Devices[Device].Type;
+
+            if (type == DeviceType.None)
+            {
+                return;
+            }
+            else if (type == DeviceType.Keyboard)
+            {
+                if (_mainWindow.InputManager.KeyboardDriver is AvaloniaKeyboardDriver)
+                {
+                    // NOTE: To get input in this window, we need to bind a custom keyboard driver instead of using the InputManager one as the main window isn't focused...
+                    SelectedGamepad = AvaloniaKeyboardDriver.GetGamepad(id);
+                }
+                else
+                {
+                    SelectedGamepad = _mainWindow.InputManager.KeyboardDriver.GetGamepad(id);
+                }
+            }
+            else
+            {
+                SelectedGamepad = _mainWindow.InputManager.GamepadDriver.GetGamepad(id);
+            }
+        }
+
+        private void HandleOnGamepadDisconnected(string id)
+        {
+            Dispatcher.UIThread.Post(() =>
+            {
+                LoadDevices();
+            });
+        }
+
+        private void HandleOnGamepadConnected(string id)
+        {
+            Dispatcher.UIThread.Post(() =>
+            {
+                LoadDevices();
+            });
+        }
+
+        private string GetCurrentGamepadId()
+        {
+            if (_device < 0)
+            {
+                return string.Empty;
+            }
+
+            var device = Devices[Device];
+
+            if (device.Type == DeviceType.None)
+            {
+                return null;
+            }
+
+            return device.Id.Split(" ")[0];
+        }
+
+        public void LoadControllers()
+        {
+            Controllers.Clear();
+
+            if (_playerId == PlayerIndex.Handheld)
+            {
+                Controllers.Add(new(ControllerType.Handheld, LocaleManager.Instance[LocaleKeys.ControllerSettingsControllerTypeHandheld]));
+
+                Controller = 0;
+            }
+            else
+            {
+                Controllers.Add(new(ControllerType.ProController, LocaleManager.Instance[LocaleKeys.ControllerSettingsControllerTypeProController]));
+                Controllers.Add(new(ControllerType.JoyconPair, LocaleManager.Instance[LocaleKeys.ControllerSettingsControllerTypeJoyConPair]));
+                Controllers.Add(new(ControllerType.JoyconLeft, LocaleManager.Instance[LocaleKeys.ControllerSettingsControllerTypeJoyConLeft]));
+                Controllers.Add(new(ControllerType.JoyconRight, LocaleManager.Instance[LocaleKeys.ControllerSettingsControllerTypeJoyConRight]));
+
+                if (Config != null && Controllers.ToList().FindIndex(x => x.Type == Config.ControllerType) != -1)
+                {
+                    Controller = Controllers.ToList().FindIndex(x => x.Type == Config.ControllerType);
+                }
+                else
+                {
+                    Controller = 0;
+                }
+            }
+        }
+
+        private static string GetShortGamepadName(string str)
+        {
+            const string Ellipsis = "...";
+            const int MaxSize = 50;
+
+            if (str.Length > MaxSize)
+            {
+                return $"{str.AsSpan(0, MaxSize - Ellipsis.Length)}{Ellipsis}";
+            }
+
+            return str;
+        }
+
+        private static string GetShortGamepadId(string str)
+        {
+            const string Hyphen = "-";
+            const int Offset = 1;
+
+            return str.Substring(str.IndexOf(Hyphen) + Offset);
+        }
+
+        public void LoadDevices()
+        {
+            lock (Devices)
+            {
+                Devices.Clear();
+                DeviceList.Clear();
+                Devices.Add((DeviceType.None, Disabled, LocaleManager.Instance[LocaleKeys.ControllerSettingsDeviceDisabled]));
+
+                foreach (string id in _mainWindow.InputManager.KeyboardDriver.GamepadsIds)
+                {
+                    using IGamepad gamepad = _mainWindow.InputManager.KeyboardDriver.GetGamepad(id);
+
+                    if (gamepad != null)
+                    {
+                        Devices.Add((DeviceType.Keyboard, id, $"{GetShortGamepadName(gamepad.Name)}"));
+                    }
+                }
+
+                foreach (string id in _mainWindow.InputManager.GamepadDriver.GamepadsIds)
+                {
+                    using IGamepad gamepad = _mainWindow.InputManager.GamepadDriver.GetGamepad(id);
+
+                    if (gamepad != null)
+                    {
+                        if (Devices.Any(controller => GetShortGamepadId(controller.Id) == GetShortGamepadId(gamepad.Id)))
+                        {
+                            _controllerNumber++;
+                        }
+
+                        Devices.Add((DeviceType.Controller, id, $"{GetShortGamepadName(gamepad.Name)} ({_controllerNumber})"));
+                    }
+                }
+
+                _controllerNumber = 0;
+
+                DeviceList.AddRange(Devices.Select(x => x.Name));
+                Device = Math.Min(Device, DeviceList.Count);
+            }
+        }
+
+        private string GetProfileBasePath()
+        {
+            string path = AppDataManager.ProfilesDirPath;
+            var type = Devices[Device == -1 ? 0 : Device].Type;
+
+            if (type == DeviceType.Keyboard)
+            {
+                path = Path.Combine(path, KeyboardString);
+            }
+            else if (type == DeviceType.Controller)
+            {
+                path = Path.Combine(path, ControllerString);
+            }
+
+            return path;
+        }
+
+        private void LoadProfiles()
+        {
+            ProfilesList.Clear();
+
+            string basePath = GetProfileBasePath();
+
+            if (!Directory.Exists(basePath))
+            {
+                Directory.CreateDirectory(basePath);
+            }
+
+            ProfilesList.Add((LocaleManager.Instance[LocaleKeys.ControllerSettingsProfileDefault]));
+
+            foreach (string profile in Directory.GetFiles(basePath, "*.json", SearchOption.AllDirectories))
+            {
+                ProfilesList.Add(Path.GetFileNameWithoutExtension(profile));
+            }
+
+            if (string.IsNullOrWhiteSpace(ProfileName))
+            {
+                ProfileName = LocaleManager.Instance[LocaleKeys.ControllerSettingsProfileDefault];
+            }
+        }
+
+        public InputConfig LoadDefaultConfiguration()
+        {
+            var activeDevice = Devices.FirstOrDefault();
+
+            if (Devices.Count > 0 && Device < Devices.Count && Device >= 0)
+            {
+                activeDevice = Devices[Device];
+            }
+
+            InputConfig config;
+            if (activeDevice.Type == DeviceType.Keyboard)
+            {
+                string id = activeDevice.Id;
+
+                config = new StandardKeyboardInputConfig
+                {
+                    Version = InputConfig.CurrentVersion,
+                    Backend = InputBackendType.WindowKeyboard,
+                    Id = id,
+                    ControllerType = ControllerType.ProController,
+                    LeftJoycon = new LeftJoyconCommonConfig<Key>
+                    {
+                        DpadUp = Key.Up,
+                        DpadDown = Key.Down,
+                        DpadLeft = Key.Left,
+                        DpadRight = Key.Right,
+                        ButtonMinus = Key.Minus,
+                        ButtonL = Key.E,
+                        ButtonZl = Key.Q,
+                        ButtonSl = Key.Unbound,
+                        ButtonSr = Key.Unbound
+                    },
+                    LeftJoyconStick =
+                        new JoyconConfigKeyboardStick<Key>
+                        {
+                            StickUp = Key.W,
+                            StickDown = Key.S,
+                            StickLeft = Key.A,
+                            StickRight = Key.D,
+                            StickButton = Key.F
+                        },
+                    RightJoycon = new RightJoyconCommonConfig<Key>
+                    {
+                        ButtonA = Key.Z,
+                        ButtonB = Key.X,
+                        ButtonX = Key.C,
+                        ButtonY = Key.V,
+                        ButtonPlus = Key.Plus,
+                        ButtonR = Key.U,
+                        ButtonZr = Key.O,
+                        ButtonSl = Key.Unbound,
+                        ButtonSr = Key.Unbound
+                    },
+                    RightJoyconStick = new JoyconConfigKeyboardStick<Key>
+                    {
+                        StickUp = Key.I,
+                        StickDown = Key.K,
+                        StickLeft = Key.J,
+                        StickRight = Key.L,
+                        StickButton = Key.H
+                    }
+                };
+            }
+            else if (activeDevice.Type == DeviceType.Controller)
+            {
+                bool isNintendoStyle = Devices.ToList().Find(x => x.Id == activeDevice.Id).Name.Contains("Nintendo");
+
+                string id = activeDevice.Id.Split(" ")[0];
+
+                config = new StandardControllerInputConfig
+                {
+                    Version = InputConfig.CurrentVersion,
+                    Backend = InputBackendType.GamepadSDL2,
+                    Id = id,
+                    ControllerType = ControllerType.ProController,
+                    DeadzoneLeft = 0.1f,
+                    DeadzoneRight = 0.1f,
+                    RangeLeft = 1.0f,
+                    RangeRight = 1.0f,
+                    TriggerThreshold = 0.5f,
+                    LeftJoycon = new LeftJoyconCommonConfig<ConfigGamepadInputId>
+                    {
+                        DpadUp = ConfigGamepadInputId.DpadUp,
+                        DpadDown = ConfigGamepadInputId.DpadDown,
+                        DpadLeft = ConfigGamepadInputId.DpadLeft,
+                        DpadRight = ConfigGamepadInputId.DpadRight,
+                        ButtonMinus = ConfigGamepadInputId.Minus,
+                        ButtonL = ConfigGamepadInputId.LeftShoulder,
+                        ButtonZl = ConfigGamepadInputId.LeftTrigger,
+                        ButtonSl = ConfigGamepadInputId.Unbound,
+                        ButtonSr = ConfigGamepadInputId.Unbound
+                    },
+                    LeftJoyconStick = new JoyconConfigControllerStick<ConfigGamepadInputId, ConfigStickInputId>
+                    {
+                        Joystick = ConfigStickInputId.Left,
+                        StickButton = ConfigGamepadInputId.LeftStick,
+                        InvertStickX = false,
+                        InvertStickY = false
+                    },
+                    RightJoycon = new RightJoyconCommonConfig<ConfigGamepadInputId>
+                    {
+                        ButtonA = isNintendoStyle ? ConfigGamepadInputId.A : ConfigGamepadInputId.B,
+                        ButtonB = isNintendoStyle ? ConfigGamepadInputId.B : ConfigGamepadInputId.A,
+                        ButtonX = isNintendoStyle ? ConfigGamepadInputId.X : ConfigGamepadInputId.Y,
+                        ButtonY = isNintendoStyle ? ConfigGamepadInputId.Y : ConfigGamepadInputId.X,
+                        ButtonPlus = ConfigGamepadInputId.Plus,
+                        ButtonR = ConfigGamepadInputId.RightShoulder,
+                        ButtonZr = ConfigGamepadInputId.RightTrigger,
+                        ButtonSl = ConfigGamepadInputId.Unbound,
+                        ButtonSr = ConfigGamepadInputId.Unbound
+                    },
+                    RightJoyconStick = new JoyconConfigControllerStick<ConfigGamepadInputId, ConfigStickInputId>
+                    {
+                        Joystick = ConfigStickInputId.Right,
+                        StickButton = ConfigGamepadInputId.RightStick,
+                        InvertStickX = false,
+                        InvertStickY = false
+                    },
+                    Motion = new StandardMotionConfigController
+                    {
+                        MotionBackend = MotionInputBackendType.GamepadDriver,
+                        EnableMotion = true,
+                        Sensitivity = 100,
+                        GyroDeadzone = 1
+                    },
+                    Rumble = new RumbleConfigController
+                    {
+                        StrongRumble = 1f,
+                        WeakRumble = 1f,
+                        EnableRumble = false
+                    }
+                };
+            }
+            else
+            {
+                config = new InputConfig();
+            }
+
+            config.PlayerIndex = _playerId;
+
+            return config;
+        }
+
+        public async void LoadProfile()
+        {
+            if (Device == 0)
+            {
+                return;
+            }
+
+            InputConfig config = null;
+
+            if (string.IsNullOrWhiteSpace(ProfileName))
+            {
+                return;
+            }
+
+            if (ProfileName == LocaleManager.Instance[LocaleKeys.ControllerSettingsProfileDefault])
+            {
+                config = LoadDefaultConfiguration();
+            }
+            else
+            {
+                string path = Path.Combine(GetProfileBasePath(), ProfileName + ".json");
+
+                if (!File.Exists(path))
+                {
+                    var index = ProfilesList.IndexOf(ProfileName);
+                    if (index != -1)
+                    {
+                        ProfilesList.RemoveAt(index);
+                    }
+                    return;
+                }
+
+                try
+                {
+                    config = JsonHelper.DeserializeFromFile(path, SerializerContext.InputConfig);
+                }
+                catch (JsonException) { }
+                catch (InvalidOperationException)
+                {
+                    Logger.Error?.Print(LogClass.Configuration, $"Profile {ProfileName} is incompatible with the current input configuration system.");
+
+                    await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogProfileInvalidProfileErrorMessage, ProfileName));
+
+                    return;
+                }
+            }
+
+            if (config != null)
+            {
+                _isLoaded = false;
+
+                LoadConfiguration(config);
+
+                LoadDevice();
+
+                _isLoaded = true;
+
+                NotifyChanges();
+            }
+        }
+
+        public async void SaveProfile()
+        {
+            if (Device == 0)
+            {
+                return;
+            }
+
+            if (Configuration == null)
+            {
+                return;
+            }
+
+            if (ProfileName == LocaleManager.Instance[LocaleKeys.ControllerSettingsProfileDefault])
+            {
+                await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogProfileDefaultProfileOverwriteErrorMessage]);
+
+                return;
+            }
+            else
+            {
+                bool validFileName = ProfileName.IndexOfAny(Path.GetInvalidFileNameChars()) == -1;
+
+                if (validFileName)
+                {
+                    string path = Path.Combine(GetProfileBasePath(), ProfileName + ".json");
+
+                    InputConfig config = null;
+
+                    if (IsKeyboard)
+                    {
+                        config = (Configuration as InputConfiguration<Key, ConfigStickInputId>).GetConfig();
+                    }
+                    else if (IsController)
+                    {
+                        config = (Configuration as InputConfiguration<GamepadInputId, ConfigStickInputId>).GetConfig();
+                    }
+
+                    config.ControllerType = Controllers[_controller].Type;
+
+                    string jsonString = JsonHelper.Serialize(config, SerializerContext.InputConfig);
+
+                    await File.WriteAllTextAsync(path, jsonString);
+
+                    LoadProfiles();
+                }
+                else
+                {
+                    await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogProfileInvalidProfileNameErrorMessage]);
+                }
+            }
+        }
+
+        public async void RemoveProfile()
+        {
+            if (Device == 0 || ProfileName == LocaleManager.Instance[LocaleKeys.ControllerSettingsProfileDefault] || ProfilesList.IndexOf(ProfileName) == -1)
+            {
+                return;
+            }
+
+            UserResult result = await ContentDialogHelper.CreateConfirmationDialog(
+                LocaleManager.Instance[LocaleKeys.DialogProfileDeleteProfileTitle],
+                LocaleManager.Instance[LocaleKeys.DialogProfileDeleteProfileMessage],
+                LocaleManager.Instance[LocaleKeys.InputDialogYes],
+                LocaleManager.Instance[LocaleKeys.InputDialogNo],
+                LocaleManager.Instance[LocaleKeys.RyujinxConfirm]);
+
+            if (result == UserResult.Yes)
+            {
+                string path = Path.Combine(GetProfileBasePath(), ProfileName + ".json");
+
+                if (File.Exists(path))
+                {
+                    File.Delete(path);
+                }
+
+                LoadProfiles();
+            }
+        }
+
+        public void Save()
+        {
+            IsModified = false;
+
+            List<InputConfig> newConfig = new();
+
+            newConfig.AddRange(ConfigurationState.Instance.Hid.InputConfig.Value);
+
+            newConfig.Remove(newConfig.Find(x => x == null));
+
+            if (Device == 0)
+            {
+                newConfig.Remove(newConfig.Find(x => x.PlayerIndex == this.PlayerId));
+            }
+            else
+            {
+                var device = Devices[Device];
+
+                if (device.Type == DeviceType.Keyboard)
+                {
+                    var inputConfig = Configuration as InputConfiguration<Key, ConfigStickInputId>;
+                    inputConfig.Id = device.Id;
+                }
+                else
+                {
+                    var inputConfig = Configuration as InputConfiguration<GamepadInputId, ConfigStickInputId>;
+                    inputConfig.Id = device.Id.Split(" ")[0];
+                }
+
+                var config = !IsController
+                    ? (Configuration as InputConfiguration<Key, ConfigStickInputId>).GetConfig()
+                    : (Configuration as InputConfiguration<GamepadInputId, ConfigStickInputId>).GetConfig();
+                config.ControllerType = Controllers[_controller].Type;
+                config.PlayerIndex = _playerId;
+
+                int i = newConfig.FindIndex(x => x.PlayerIndex == PlayerId);
+                if (i == -1)
+                {
+                    newConfig.Add(config);
+                }
+                else
+                {
+                    newConfig[i] = config;
+                }
+            }
+
+            _mainWindow.ViewModel.AppHost?.NpadManager.ReloadConfiguration(newConfig, ConfigurationState.Instance.Hid.EnableKeyboard, ConfigurationState.Instance.Hid.EnableMouse);
+
+            // Atomically replace and signal input change.
+            // NOTE: Do not modify InputConfig.Value directly as other code depends on the on-change event.
+            ConfigurationState.Instance.Hid.InputConfig.Value = newConfig;
+
+            ConfigurationState.Instance.ToFileFormat().SaveConfig(Program.ConfigurationPath);
+        }
+
+        public void NotifyChange(string property)
+        {
+            OnPropertyChanged(property);
+        }
+
+        public void NotifyChanges()
+        {
+            OnPropertyChanged(nameof(Configuration));
+            OnPropertyChanged(nameof(IsController));
+            OnPropertyChanged(nameof(ShowSettings));
+            OnPropertyChanged(nameof(IsKeyboard));
+            OnPropertyChanged(nameof(IsRight));
+            OnPropertyChanged(nameof(IsLeft));
+        }
+
+        public void Dispose()
+        {
+            _mainWindow.InputManager.GamepadDriver.OnGamepadConnected -= HandleOnGamepadConnected;
+            _mainWindow.InputManager.GamepadDriver.OnGamepadDisconnected -= HandleOnGamepadDisconnected;
+
+            _mainWindow.ViewModel.AppHost?.NpadManager.UnblockInputUpdates();
+
+            SelectedGamepad?.Dispose();
+
+            AvaloniaKeyboardDriver.Dispose();
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/DownloadableContentManagerViewModel.cs

@@ -0,0 +1,338 @@
+using Avalonia.Collections;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Threading;
+using DynamicData;
+using LibHac.Common;
+using LibHac.Fs;
+using LibHac.Fs.Fsa;
+using LibHac.FsSystem;
+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 System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using Path = System.IO.Path;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class DownloadableContentManagerViewModel : BaseModel
+    {
+        private readonly List<DownloadableContentContainer> _downloadableContentContainerList;
+        private readonly string                             _downloadableContentJsonPath;
+
+        private VirtualFileSystem                      _virtualFileSystem;
+        private AvaloniaList<DownloadableContentModel> _downloadableContents = new();
+        private AvaloniaList<DownloadableContentModel> _views = new();
+        private AvaloniaList<DownloadableContentModel> _selectedDownloadableContents = new();
+
+        private string _search;
+        private ulong _titleId;
+        private string _titleName;
+
+        private static readonly DownloadableContentJsonSerializerContext SerializerContext = new(JsonHelper.GetDefaultSerializerOptions());
+
+        public AvaloniaList<DownloadableContentModel> DownloadableContents
+        {
+            get => _downloadableContents;
+            set
+            {
+                _downloadableContents = value;
+                OnPropertyChanged();
+                OnPropertyChanged(nameof(UpdateCount));
+                Sort();
+            }
+        }
+
+        public AvaloniaList<DownloadableContentModel> Views
+        {
+            get => _views;
+            set
+            {
+                _views = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public AvaloniaList<DownloadableContentModel> SelectedDownloadableContents
+        {
+            get => _selectedDownloadableContents;
+            set
+            {
+                _selectedDownloadableContents = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public string Search
+        {
+            get => _search;
+            set
+            {
+                _search = value;
+                OnPropertyChanged();
+                Sort();
+            }
+        }
+
+        public string UpdateCount
+        {
+            get => string.Format(LocaleManager.Instance[LocaleKeys.DlcWindowHeading], DownloadableContents.Count);
+        }
+
+        public DownloadableContentManagerViewModel(VirtualFileSystem virtualFileSystem, ulong titleId, string titleName)
+        {
+            _virtualFileSystem = virtualFileSystem;
+
+            _titleId   = titleId;
+            _titleName = titleName;
+
+            _downloadableContentJsonPath = Path.Combine(AppDataManager.GamesDirPath, titleId.ToString("x16"), "dlc.json");
+
+            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)
+            {
+                if (File.Exists(downloadableContentContainer.ContainerPath))
+                {
+                    using FileStream containerFile = File.OpenRead(downloadableContentContainer.ContainerPath);
+
+                    PartitionFileSystem partitionFileSystem = new(containerFile.AsStorage());
+
+                    _virtualFileSystem.ImportTickets(partitionFileSystem);
+
+                    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));
+                        }
+                    }
+                }
+            }
+
+            // NOTE: Save the list again to remove leftovers.
+            Save();
+            Sort();
+        }
+
+        public void Sort()
+        {
+            DownloadableContents.AsObservableChangeSet()
+                .Filter(Filter)
+                .Bind(out var view).AsObservableList();
+
+            _views.Clear();
+            _views.AddRange(view);
+            OnPropertyChanged(nameof(Views));
+        }
+
+        private bool Filter(object arg)
+        {
+            if (arg is DownloadableContentModel content)
+            {
+                return string.IsNullOrWhiteSpace(_search) || content.FileName.ToLower().Contains(_search.ToLower()) || content.TitleId.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.DialogLoadNcaErrorMessage], ex.Message, containerPath));
+                });
+            }
+
+            return null;
+        }
+
+        public async void Add()
+        {
+            OpenFileDialog dialog = new OpenFileDialog()
+            {
+                Title         = LocaleManager.Instance[LocaleKeys.SelectDlcDialogTitle],
+                AllowMultiple = true
+            };
+
+            dialog.Filters.Add(new FileDialogFilter
+            {
+                Name       = "NSP",
+                Extensions = { "nsp" }
+            });
+
+            if (Avalonia.Application.Current.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+            {
+                string[] files = await dialog.ShowAsync(desktop.MainWindow);
+
+                if (files != null)
+                {
+                    foreach (string file in files)
+                    {
+                        await AddDownloadableContent(file);
+                    }
+                }
+            }
+        }
+
+        private async Task AddDownloadableContent(string path)
+        {
+            if (!File.Exists(path) || DownloadableContents.FirstOrDefault(x => x.ContainerPath == path) != null)
+            {
+                return;
+            }
+
+            using FileStream containerFile = File.OpenRead(path);
+
+            PartitionFileSystem partitionFileSystem         = new(containerFile.AsStorage());
+            bool                containsDownloadableContent = false;
+
+            _virtualFileSystem.ImportTickets(partitionFileSystem);
+
+            foreach (DirectoryEntryEx fileEntry in partitionFileSystem.EnumerateEntries("/", "*.nca"))
+            {
+                using var ncaFile = new UniqueRef<IFile>();
+
+                partitionFileSystem.OpenFile(ref ncaFile.Ref, fileEntry.FullPath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
+
+                Nca nca = TryOpenNca(ncaFile.Get.AsStorage(), path);
+                if (nca == null)
+                {
+                    continue;
+                }
+
+                if (nca.Header.ContentType == NcaContentType.PublicData)
+                {
+                    if ((nca.Header.TitleId & 0xFFFFFFFFFFFFE000) != _titleId)
+                    {
+                        break;
+                    }
+
+                    var content = new DownloadableContentModel(nca.Header.TitleId.ToString("X16"), path, fileEntry.FullPath, true);
+                    DownloadableContents.Add(content);
+                    SelectedDownloadableContents.Add(content);
+
+                    OnPropertyChanged(nameof(UpdateCount));
+                    Sort();
+
+                    containsDownloadableContent = true;
+                }
+            }
+
+            if (!containsDownloadableContent)
+            {
+                await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogDlcNoDlcErrorMessage]);
+            }
+        }
+
+        public void Remove(DownloadableContentModel model)
+        {
+            DownloadableContents.Remove(model);
+            OnPropertyChanged(nameof(UpdateCount));
+            Sort();
+        }
+
+        public void RemoveAll()
+        {
+            DownloadableContents.Clear();
+            OnPropertyChanged(nameof(UpdateCount));
+            Sort();
+        }
+
+        public void EnableAll()
+        {
+            SelectedDownloadableContents = new(DownloadableContents);
+        }
+
+        public void DisableAll()
+        {
+            SelectedDownloadableContents.Clear();
+        }
+
+        public void Save()
+        {
+            _downloadableContentContainerList.Clear();
+
+            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);
+        }
+
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/SettingsViewModel.cs

@@ -0,0 +1,585 @@
+using Avalonia.Collections;
+using Avalonia.Controls;
+using Avalonia.Threading;
+using DynamicData;
+using LibHac.Tools.FsSystem;
+using Ryujinx.Audio.Backends.OpenAL;
+using Ryujinx.Audio.Backends.SDL2;
+using Ryujinx.Audio.Backends.SoundIo;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.Helpers;
+using Ryujinx.Ava.UI.Windows;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.GraphicsDriver;
+using Ryujinx.Common.Logging;
+using Ryujinx.Graphics.Vulkan;
+using Ryujinx.HLE.FileSystem;
+using Ryujinx.HLE.HOS.Services.Time.TimeZone;
+using Ryujinx.Ui.Common.Configuration;
+using Ryujinx.Ui.Common.Configuration.System;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Net.NetworkInformation;
+using TimeZone = Ryujinx.Ava.UI.Models.TimeZone;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class SettingsViewModel : BaseModel
+    {
+        private readonly VirtualFileSystem _virtualFileSystem;
+        private readonly ContentManager _contentManager;
+        private TimeZoneContentManager _timeZoneContentManager;
+
+        private readonly List<string> _validTzRegions;
+
+        private readonly Dictionary<string, string> _networkInterfaces;
+
+        private float _customResolutionScale;
+        private int _resolutionScale;
+        private int _graphicsBackendMultithreadingIndex;
+        private float _volume;
+        private bool _isVulkanAvailable = true;
+        private bool _directoryChanged;
+        private List<string> _gpuIds = new();
+        private KeyboardHotkeys _keyboardHotkeys;
+        private int _graphicsBackendIndex;
+        private string _customThemePath;
+        private int _scalingFilter;
+        private int _scalingFilterLevel;
+
+        public event Action CloseWindow;
+        public event Action SaveSettingsEvent;
+        private int _networkInterfaceIndex;
+
+        public int ResolutionScale
+        {
+            get => _resolutionScale;
+            set
+            {
+                _resolutionScale = value;
+
+                OnPropertyChanged(nameof(CustomResolutionScale));
+                OnPropertyChanged(nameof(IsCustomResolutionScaleActive));
+            }
+        }
+
+        public int GraphicsBackendMultithreadingIndex
+        {
+            get => _graphicsBackendMultithreadingIndex;
+            set
+            {
+                _graphicsBackendMultithreadingIndex = value;
+
+                if (_graphicsBackendMultithreadingIndex != (int)ConfigurationState.Instance.Graphics.BackendThreading.Value)
+                {
+                    Dispatcher.UIThread.Post(async () =>
+                    {
+                        await ContentDialogHelper.CreateInfoDialog(LocaleManager.Instance[LocaleKeys.DialogSettingsBackendThreadingWarningMessage],
+                            "",
+                            "",
+                            LocaleManager.Instance[LocaleKeys.InputDialogOk],
+                            LocaleManager.Instance[LocaleKeys.DialogSettingsBackendThreadingWarningTitle]);
+                    });
+                }
+
+                OnPropertyChanged();
+            }
+        }
+
+        public float CustomResolutionScale
+        {
+            get => _customResolutionScale;
+            set
+            {
+                _customResolutionScale = MathF.Round(value, 1);
+
+                OnPropertyChanged();
+            }
+        }
+
+        public bool IsVulkanAvailable
+        {
+            get => _isVulkanAvailable;
+            set
+            {
+                _isVulkanAvailable = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public bool IsOpenGLAvailable => !OperatingSystem.IsMacOS();
+
+        public bool IsHypervisorAvailable => OperatingSystem.IsMacOS() && RuntimeInformation.ProcessArchitecture == Architecture.Arm64;
+
+        public bool DirectoryChanged
+        {
+            get => _directoryChanged;
+            set
+            {
+                _directoryChanged = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public bool IsMacOS => OperatingSystem.IsMacOS();
+
+        public bool EnableDiscordIntegration { get; set; }
+        public bool CheckUpdatesOnStart { get; set; }
+        public bool ShowConfirmExit { get; set; }
+        public bool HideCursorOnIdle { get; set; }
+        public bool EnableDockedMode { get; set; }
+        public bool EnableKeyboard { get; set; }
+        public bool EnableMouse { get; set; }
+        public bool EnableVsync { get; set; }
+        public bool EnablePptc { get; set; }
+        public bool EnableInternetAccess { get; set; }
+        public bool EnableFsIntegrityChecks { get; set; }
+        public bool IgnoreMissingServices { get; set; }
+        public bool ExpandDramSize { get; set; }
+        public bool EnableShaderCache { get; set; }
+        public bool EnableTextureRecompression { get; set; }
+        public bool EnableMacroHLE { get; set; }
+        public bool EnableFileLog { get; set; }
+        public bool EnableStub { get; set; }
+        public bool EnableInfo { get; set; }
+        public bool EnableWarn { get; set; }
+        public bool EnableError { get; set; }
+        public bool EnableTrace { get; set; }
+        public bool EnableGuest { get; set; }
+        public bool EnableFsAccessLog { get; set; }
+        public bool EnableDebug { get; set; }
+        public bool IsOpenAlEnabled { get; set; }
+        public bool IsSoundIoEnabled { get; set; }
+        public bool IsSDL2Enabled { get; set; }
+        public bool EnableCustomTheme { get; set; }
+        public bool IsCustomResolutionScaleActive => _resolutionScale == 4;
+        public bool IsScalingFilterActive => _scalingFilter == (int)Ryujinx.Common.Configuration.ScalingFilter.Fsr;
+
+        public bool IsVulkanSelected => GraphicsBackendIndex == 0;
+        public bool UseHypervisor { get; set; }
+
+        public string TimeZone { get; set; }
+        public string ShaderDumpPath { get; set; }
+
+        public string CustomThemePath
+        {
+            get
+            {
+                return _customThemePath;
+            }
+            set
+            {
+                _customThemePath = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public int Language { get; set; }
+        public int Region { get; set; }
+        public int FsGlobalAccessLogMode { get; set; }
+        public int AudioBackend { get; set; }
+        public int MaxAnisotropy { get; set; }
+        public int AspectRatio { get; set; }
+        public int AntiAliasingEffect { get; set; }
+        public string ScalingFilterLevelText => ScalingFilterLevel.ToString("0");
+        public int ScalingFilterLevel
+        {
+            get => _scalingFilterLevel;
+            set
+            {
+                _scalingFilterLevel = value;
+                OnPropertyChanged();
+                OnPropertyChanged(nameof(ScalingFilterLevelText));
+            }
+        }
+        public int OpenglDebugLevel { get; set; }
+        public int MemoryMode { get; set; }
+        public int BaseStyleIndex { get; set; }
+        public int GraphicsBackendIndex
+        {
+            get => _graphicsBackendIndex;
+            set
+            {
+                _graphicsBackendIndex = value;
+                OnPropertyChanged();
+                OnPropertyChanged(nameof(IsVulkanSelected));
+            }
+        }
+        public int ScalingFilter
+        {
+            get => _scalingFilter;
+            set
+            {
+                _scalingFilter = value;
+                OnPropertyChanged();
+                OnPropertyChanged(nameof(IsScalingFilterActive));
+            }
+        }
+
+        public int PreferredGpuIndex { get; set; }
+
+        public float Volume
+        {
+            get => _volume;
+            set
+            {
+                _volume = value;
+
+                ConfigurationState.Instance.System.AudioVolume.Value = _volume / 100;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public DateTimeOffset DateOffset { get; set; }
+        public TimeSpan TimeOffset { get; set; }
+        internal AvaloniaList<TimeZone> TimeZones { get; set; }
+        public AvaloniaList<string> GameDirectories { get; set; }
+        public ObservableCollection<ComboBoxItem> AvailableGpus { get; set; }
+
+        public AvaloniaList<string> NetworkInterfaceList
+        {
+            get => new AvaloniaList<string>(_networkInterfaces.Keys);
+        }
+
+        public KeyboardHotkeys KeyboardHotkeys
+        {
+            get => _keyboardHotkeys;
+            set
+            {
+                _keyboardHotkeys = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public int NetworkInterfaceIndex
+        {
+            get => _networkInterfaceIndex;
+            set
+            {
+                _networkInterfaceIndex = value != -1 ? value : 0;
+                ConfigurationState.Instance.Multiplayer.LanInterfaceId.Value = _networkInterfaces[NetworkInterfaceList[_networkInterfaceIndex]];
+            }
+        }
+
+        public SettingsViewModel(VirtualFileSystem virtualFileSystem, ContentManager contentManager) : this()
+        {
+            _virtualFileSystem = virtualFileSystem;
+            _contentManager = contentManager;
+            if (Program.PreviewerDetached)
+            {
+                LoadTimeZones();
+            }
+        }
+
+        public SettingsViewModel()
+        {
+            GameDirectories = new AvaloniaList<string>();
+            TimeZones = new AvaloniaList<TimeZone>();
+            AvailableGpus = new ObservableCollection<ComboBoxItem>();
+            _validTzRegions = new List<string>();
+            _networkInterfaces = new Dictionary<string, string>();
+
+            CheckSoundBackends();
+            PopulateNetworkInterfaces();
+
+            if (Program.PreviewerDetached)
+            {
+                LoadAvailableGpus();
+                LoadCurrentConfiguration();
+            }
+        }
+
+        public void CheckSoundBackends()
+        {
+            IsOpenAlEnabled = OpenALHardwareDeviceDriver.IsSupported;
+            IsSoundIoEnabled = SoundIoHardwareDeviceDriver.IsSupported;
+            IsSDL2Enabled = SDL2HardwareDeviceDriver.IsSupported;
+        }
+
+        private void LoadAvailableGpus()
+        {
+            _gpuIds = new List<string>();
+            List<string> names = new();
+            var devices = VulkanRenderer.GetPhysicalDevices();
+
+            if (devices.Length == 0)
+            {
+                IsVulkanAvailable = false;
+                GraphicsBackendIndex = 1;
+            }
+            else
+            {
+                foreach (var device in devices)
+                {
+                    _gpuIds.Add(device.Id);
+                    names.Add($"{device.Name} {(device.IsDiscrete ? "(dGPU)" : "")}");
+                }
+            }
+
+            AvailableGpus.Clear();
+            AvailableGpus.AddRange(names.Select(x => new ComboBoxItem { Content = x }));
+        }
+
+        public void LoadTimeZones()
+        {
+            _timeZoneContentManager = new TimeZoneContentManager();
+
+            _timeZoneContentManager.InitializeInstance(_virtualFileSystem, _contentManager, IntegrityCheckLevel.None);
+
+            foreach ((int offset, string location, string abbr) in _timeZoneContentManager.ParseTzOffsets())
+            {
+                int hours = Math.DivRem(offset, 3600, out int seconds);
+                int minutes = Math.Abs(seconds) / 60;
+
+                string abbr2 = abbr.StartsWith('+') || abbr.StartsWith('-') ? string.Empty : abbr;
+
+                TimeZones.Add(new TimeZone($"UTC{hours:+0#;-0#;+00}:{minutes:D2}", location, abbr2));
+
+                _validTzRegions.Add(location);
+            }
+        }
+
+        private void PopulateNetworkInterfaces()
+        {
+            _networkInterfaces.Clear();
+            _networkInterfaces.Add(LocaleManager.Instance[LocaleKeys.NetworkInterfaceDefault], "0");
+
+            foreach (NetworkInterface networkInterface in NetworkInterface.GetAllNetworkInterfaces())
+            {
+                _networkInterfaces.Add(networkInterface.Name, networkInterface.Id);
+            }
+        }
+
+        public void ValidateAndSetTimeZone(string location)
+        {
+            if (_validTzRegions.Contains(location))
+            {
+                TimeZone = location;
+            }
+        }
+
+        public void LoadCurrentConfiguration()
+        {
+            ConfigurationState config = ConfigurationState.Instance;
+
+            // User Interface
+            EnableDiscordIntegration = config.EnableDiscordIntegration;
+            CheckUpdatesOnStart = config.CheckUpdatesOnStart;
+            ShowConfirmExit = config.ShowConfirmExit;
+            HideCursorOnIdle = config.HideCursorOnIdle;
+
+            GameDirectories.Clear();
+            GameDirectories.AddRange(config.Ui.GameDirs.Value);
+
+            EnableCustomTheme = config.Ui.EnableCustomTheme;
+            CustomThemePath = config.Ui.CustomThemePath;
+            BaseStyleIndex = config.Ui.BaseStyle == "Light" ? 0 : 1;
+
+            // Input
+            EnableDockedMode = config.System.EnableDockedMode;
+            EnableKeyboard = config.Hid.EnableKeyboard;
+            EnableMouse = config.Hid.EnableMouse;
+
+            // Keyboard Hotkeys
+            KeyboardHotkeys = config.Hid.Hotkeys.Value;
+
+            // System
+            Region = (int)config.System.Region.Value;
+            Language = (int)config.System.Language.Value;
+            TimeZone = config.System.TimeZone;
+
+            DateTime dateTimeOffset = DateTime.Now.AddSeconds(config.System.SystemTimeOffset);
+
+            DateOffset = dateTimeOffset.Date;
+            TimeOffset = dateTimeOffset.TimeOfDay;
+            EnableVsync = config.Graphics.EnableVsync;
+            EnableFsIntegrityChecks = config.System.EnableFsIntegrityChecks;
+            ExpandDramSize = config.System.ExpandRam;
+            IgnoreMissingServices = config.System.IgnoreMissingServices;
+
+            // CPU
+            EnablePptc = config.System.EnablePtc;
+            MemoryMode = (int)config.System.MemoryManagerMode.Value;
+            UseHypervisor = config.System.UseHypervisor;
+
+            // Graphics
+            GraphicsBackendIndex = (int)config.Graphics.GraphicsBackend.Value;
+            PreferredGpuIndex = _gpuIds.Contains(config.Graphics.PreferredGpu) ? _gpuIds.IndexOf(config.Graphics.PreferredGpu) : 0;
+            EnableShaderCache = config.Graphics.EnableShaderCache;
+            EnableTextureRecompression = config.Graphics.EnableTextureRecompression;
+            EnableMacroHLE = config.Graphics.EnableMacroHLE;
+            ResolutionScale = config.Graphics.ResScale == -1 ? 4 : config.Graphics.ResScale - 1;
+            CustomResolutionScale = config.Graphics.ResScaleCustom;
+            MaxAnisotropy = config.Graphics.MaxAnisotropy == -1 ? 0 : (int)(MathF.Log2(config.Graphics.MaxAnisotropy));
+            AspectRatio = (int)config.Graphics.AspectRatio.Value;
+            GraphicsBackendMultithreadingIndex = (int)config.Graphics.BackendThreading.Value;
+            ShaderDumpPath = config.Graphics.ShadersDumpPath;
+            AntiAliasingEffect = (int)config.Graphics.AntiAliasing.Value;
+            ScalingFilter = (int)config.Graphics.ScalingFilter.Value;
+            ScalingFilterLevel = config.Graphics.ScalingFilterLevel.Value;
+
+            // Audio
+            AudioBackend = (int)config.System.AudioBackend.Value;
+            Volume = config.System.AudioVolume * 100;
+
+            // Network
+            EnableInternetAccess = config.System.EnableInternetAccess;
+
+            // Logging
+            EnableFileLog = config.Logger.EnableFileLog;
+            EnableStub = config.Logger.EnableStub;
+            EnableInfo = config.Logger.EnableInfo;
+            EnableWarn = config.Logger.EnableWarn;
+            EnableError = config.Logger.EnableError;
+            EnableTrace = config.Logger.EnableTrace;
+            EnableGuest = config.Logger.EnableGuest;
+            EnableDebug = config.Logger.EnableDebug;
+            EnableFsAccessLog = config.Logger.EnableFsAccessLog;
+            FsGlobalAccessLogMode = config.System.FsGlobalAccessLogMode;
+            OpenglDebugLevel = (int)config.Logger.GraphicsDebugLevel.Value;
+
+            NetworkInterfaceIndex = _networkInterfaces.Values.ToList().IndexOf(config.Multiplayer.LanInterfaceId.Value);
+        }
+
+        public void SaveSettings()
+        {
+            ConfigurationState config = ConfigurationState.Instance;
+
+            // User Interface
+            config.EnableDiscordIntegration.Value = EnableDiscordIntegration;
+            config.CheckUpdatesOnStart.Value = CheckUpdatesOnStart;
+            config.ShowConfirmExit.Value = ShowConfirmExit;
+            config.HideCursorOnIdle.Value = HideCursorOnIdle;
+
+            if (_directoryChanged)
+            {
+                List<string> gameDirs = new(GameDirectories);
+                config.Ui.GameDirs.Value = gameDirs;
+            }
+
+            config.Ui.EnableCustomTheme.Value = EnableCustomTheme;
+            config.Ui.CustomThemePath.Value = CustomThemePath;
+            config.Ui.BaseStyle.Value = BaseStyleIndex == 0 ? "Light" : "Dark";
+
+            // Input
+            config.System.EnableDockedMode.Value = EnableDockedMode;
+            config.Hid.EnableKeyboard.Value = EnableKeyboard;
+            config.Hid.EnableMouse.Value = EnableMouse;
+
+            // Keyboard Hotkeys
+            config.Hid.Hotkeys.Value = KeyboardHotkeys;
+
+            // System
+            config.System.Region.Value = (Region)Region;
+            config.System.Language.Value = (Language)Language;
+
+            if (_validTzRegions.Contains(TimeZone))
+            {
+                config.System.TimeZone.Value = TimeZone;
+            }
+
+            TimeSpan systemTimeOffset = DateOffset - DateTime.Now;
+
+            config.System.SystemTimeOffset.Value = systemTimeOffset.Seconds;
+            config.Graphics.EnableVsync.Value = EnableVsync;
+            config.System.EnableFsIntegrityChecks.Value = EnableFsIntegrityChecks;
+            config.System.ExpandRam.Value = ExpandDramSize;
+            config.System.IgnoreMissingServices.Value = IgnoreMissingServices;
+
+            // CPU
+            config.System.EnablePtc.Value = EnablePptc;
+            config.System.MemoryManagerMode.Value = (MemoryManagerMode)MemoryMode;
+            config.System.UseHypervisor.Value = UseHypervisor;
+
+            // Graphics
+            config.Graphics.GraphicsBackend.Value = (GraphicsBackend)GraphicsBackendIndex;
+            config.Graphics.PreferredGpu.Value = _gpuIds.ElementAtOrDefault(PreferredGpuIndex);
+            config.Graphics.EnableShaderCache.Value = EnableShaderCache;
+            config.Graphics.EnableTextureRecompression.Value = EnableTextureRecompression;
+            config.Graphics.EnableMacroHLE.Value = EnableMacroHLE;
+            config.Graphics.ResScale.Value = ResolutionScale == 4 ? -1 : ResolutionScale + 1;
+            config.Graphics.ResScaleCustom.Value = CustomResolutionScale;
+            config.Graphics.MaxAnisotropy.Value = MaxAnisotropy == 0 ? -1 : MathF.Pow(2, MaxAnisotropy);
+            config.Graphics.AspectRatio.Value = (AspectRatio)AspectRatio;
+            config.Graphics.AntiAliasing.Value = (AntiAliasing)AntiAliasingEffect;
+            config.Graphics.ScalingFilter.Value = (ScalingFilter)ScalingFilter;
+            config.Graphics.ScalingFilterLevel.Value = ScalingFilterLevel;
+
+            if (ConfigurationState.Instance.Graphics.BackendThreading != (BackendThreading)GraphicsBackendMultithreadingIndex)
+            {
+                DriverUtilities.ToggleOGLThreading(GraphicsBackendMultithreadingIndex == (int)BackendThreading.Off);
+            }
+
+            config.Graphics.BackendThreading.Value = (BackendThreading)GraphicsBackendMultithreadingIndex;
+            config.Graphics.ShadersDumpPath.Value = ShaderDumpPath;
+
+            // Audio
+            AudioBackend audioBackend = (AudioBackend)AudioBackend;
+            if (audioBackend != config.System.AudioBackend.Value)
+            {
+                config.System.AudioBackend.Value = audioBackend;
+
+                Logger.Info?.Print(LogClass.Application, $"AudioBackend toggled to: {audioBackend}");
+            }
+
+            config.System.AudioVolume.Value = Volume / 100;
+
+            // Network
+            config.System.EnableInternetAccess.Value = EnableInternetAccess;
+
+            // Logging
+            config.Logger.EnableFileLog.Value = EnableFileLog;
+            config.Logger.EnableStub.Value = EnableStub;
+            config.Logger.EnableInfo.Value = EnableInfo;
+            config.Logger.EnableWarn.Value = EnableWarn;
+            config.Logger.EnableError.Value = EnableError;
+            config.Logger.EnableTrace.Value = EnableTrace;
+            config.Logger.EnableGuest.Value = EnableGuest;
+            config.Logger.EnableDebug.Value = EnableDebug;
+            config.Logger.EnableFsAccessLog.Value = EnableFsAccessLog;
+            config.System.FsGlobalAccessLogMode.Value = FsGlobalAccessLogMode;
+            config.Logger.GraphicsDebugLevel.Value = (GraphicsDebugLevel)OpenglDebugLevel;
+
+            config.Multiplayer.LanInterfaceId.Value = _networkInterfaces[NetworkInterfaceList[NetworkInterfaceIndex]];
+
+            config.ToFileFormat().SaveConfig(Program.ConfigurationPath);
+
+            MainWindow.UpdateGraphicsConfig();
+
+            SaveSettingsEvent?.Invoke();
+
+            _directoryChanged = false;
+        }
+
+        public void RevertIfNotSaved()
+        {
+            Program.ReloadConfig();
+        }
+
+        public void ApplyButton()
+        {
+            SaveSettings();
+        }
+
+        public void OkButton()
+        {
+            SaveSettings();
+            CloseWindow?.Invoke();
+        }
+
+        public void CancelButton()
+        {
+            RevertIfNotSaved();
+            CloseWindow?.Invoke();
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/TitleUpdateViewModel.cs

@@ -0,0 +1,252 @@
+using Avalonia.Collections;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Threading;
+using LibHac.Common;
+using LibHac.Fs;
+using LibHac.Fs.Fsa;
+using LibHac.FsSystem;
+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.HOS;
+using Ryujinx.Ui.App.Common;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using Path = System.IO.Path;
+using SpanHelpers = LibHac.Common.SpanHelpers;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class TitleUpdateViewModel : BaseModel
+    {
+        public TitleUpdateMetadata _titleUpdateWindowData;
+        public readonly string     _titleUpdateJsonPath;
+        private VirtualFileSystem  _virtualFileSystem { get; }
+        private ulong              _titleId           { get; }
+        private string             _titleName         { get; }
+
+        private AvaloniaList<TitleUpdateModel> _titleUpdates = new();
+        private AvaloniaList<object> _views = new();
+        private object _selectedUpdate;
+
+        private static readonly TitleUpdateMetadataJsonSerializerContext SerializerContext = new(JsonHelper.GetDefaultSerializerOptions());
+
+        public AvaloniaList<TitleUpdateModel> TitleUpdates
+        {
+            get => _titleUpdates;
+            set
+            {
+                _titleUpdates = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public AvaloniaList<object> Views
+        {
+            get => _views;
+            set
+            {
+                _views = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public object SelectedUpdate
+        {
+            get => _selectedUpdate;
+            set
+            {
+                _selectedUpdate = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public TitleUpdateViewModel(VirtualFileSystem virtualFileSystem, ulong titleId, string titleName)
+        {
+            _virtualFileSystem = virtualFileSystem;
+
+            _titleId   = titleId;
+            _titleName = titleName;
+
+            _titleUpdateJsonPath = Path.Combine(AppDataManager.GamesDirPath, titleId.ToString("x16"), "updates.json");
+
+            try
+            {
+                _titleUpdateWindowData = JsonHelper.DeserializeFromFile(_titleUpdateJsonPath, SerializerContext.TitleUpdateMetadata);
+            }
+            catch
+            {
+                Logger.Warning?.Print(LogClass.Application, $"Failed to deserialize title update data for {_titleId} at {_titleUpdateJsonPath}");
+
+                _titleUpdateWindowData = new TitleUpdateMetadata
+                {
+                    Selected = "",
+                    Paths    = new List<string>()
+                };
+
+                Save();
+            }
+
+            LoadUpdates();
+        }
+
+        private void LoadUpdates()
+        {
+            foreach (string path in _titleUpdateWindowData.Paths)
+            {
+                AddUpdate(path);
+            }
+
+            TitleUpdateModel selected = TitleUpdates.FirstOrDefault(x => x.Path == _titleUpdateWindowData.Selected, null);
+
+            SelectedUpdate = selected;
+
+            // NOTE: Save the list again to remove leftovers.
+            Save();
+            SortUpdates();
+        }
+
+        public void SortUpdates()
+        {
+            var list = TitleUpdates.ToList();
+
+            list.Sort((first, second) =>
+            {
+                if (string.IsNullOrEmpty(first.Control.DisplayVersionString.ToString()))
+                {
+                    return -1;
+                }
+                else if (string.IsNullOrEmpty(second.Control.DisplayVersionString.ToString()))
+                {
+                    return 1;
+                }
+
+                return Version.Parse(first.Control.DisplayVersionString.ToString()).CompareTo(Version.Parse(second.Control.DisplayVersionString.ToString())) * -1;
+            });
+
+            Views.Clear();
+            Views.Add(new BaseModel());
+            Views.AddRange(list);
+
+            if (SelectedUpdate == null)
+            {
+                SelectedUpdate = Views[0];
+            }
+            else if (!TitleUpdates.Contains(SelectedUpdate))
+            {
+                if (Views.Count > 1)
+                {
+                    SelectedUpdate = Views[1];
+                }
+                else
+                {
+                    SelectedUpdate = Views[0];
+                }
+            }
+        }
+
+        private void AddUpdate(string path)
+        {
+            if (File.Exists(path) && TitleUpdates.All(x => x.Path != path))
+            {
+                using FileStream file = new(path, FileMode.Open, FileAccess.Read);
+
+                try
+                {
+                    (Nca patchNca, Nca controlNca) = ApplicationLibrary.GetGameUpdateDataFromPartition(_virtualFileSystem, new PartitionFileSystem(file.AsStorage()), _titleId.ToString("x16"), 0);
+
+                    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();
+
+                        TitleUpdates.Add(new TitleUpdateModel(controlData, path));
+                    }
+                    else
+                    {
+                        Dispatcher.UIThread.Post(async () =>
+                        {
+                            await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogUpdateAddUpdateErrorMessage]);
+                        });
+                    }
+                }
+                catch (Exception ex)
+                {
+                    Dispatcher.UIThread.Post(async () =>
+                    {
+                        await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogLoadNcaErrorMessage, ex.Message, path));
+                    });
+                }
+            }
+        }
+
+        public void RemoveUpdate(TitleUpdateModel update)
+        {
+            TitleUpdates.Remove(update);
+
+            SortUpdates();
+        }
+
+        public async void Add()
+        {
+            OpenFileDialog dialog = new()
+            {
+                Title         = LocaleManager.Instance[LocaleKeys.SelectUpdateDialogTitle],
+                AllowMultiple = true
+            };
+
+            dialog.Filters.Add(new FileDialogFilter
+            {
+                Name       = "NSP",
+                Extensions = { "nsp" }
+            });
+
+            if (Avalonia.Application.Current.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+            {
+                string[] files = await dialog.ShowAsync(desktop.MainWindow);
+
+                if (files != null)
+                {
+                    foreach (string file in files)
+                    {
+                        AddUpdate(file);
+                    }
+                }
+            }
+
+            SortUpdates();
+        }
+
+        public void Save()
+        {
+            _titleUpdateWindowData.Paths.Clear();
+            _titleUpdateWindowData.Selected = "";
+
+            foreach (TitleUpdateModel update in TitleUpdates)
+            {
+                _titleUpdateWindowData.Paths.Add(update.Path);
+
+                if (update == SelectedUpdate)
+                {
+                    _titleUpdateWindowData.Selected = update.Path;
+                }
+            }
+
+            JsonHelper.SerializeToFile(_titleUpdateJsonPath, _titleUpdateWindowData, SerializerContext.TitleUpdateMetadata);
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/UserFirmwareAvatarSelectorViewModel.cs

@@ -0,0 +1,230 @@
+using Avalonia.Media;
+using LibHac.Common;
+using LibHac.Fs;
+using LibHac.Fs.Fsa;
+using LibHac.FsSystem;
+using LibHac.Ncm;
+using LibHac.Tools.Fs;
+using LibHac.Tools.FsSystem;
+using LibHac.Tools.FsSystem.NcaUtils;
+using Ryujinx.Ava.UI.Models;
+using Ryujinx.HLE.FileSystem;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.PixelFormats;
+using System;
+using System.Buffers.Binary;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IO;
+using Color = Avalonia.Media.Color;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    internal class UserFirmwareAvatarSelectorViewModel : BaseModel
+    {
+        private static readonly Dictionary<string, byte[]> _avatarStore = new();
+
+        private ObservableCollection<ProfileImageModel> _images;
+        private Color _backgroundColor = Colors.White;
+
+        private int _selectedIndex;
+        private byte[] _selectedImage;
+
+        public UserFirmwareAvatarSelectorViewModel()
+        {
+            _images = new ObservableCollection<ProfileImageModel>();
+
+            LoadImagesFromStore();
+        }
+
+        public Color BackgroundColor
+        {
+            get => _backgroundColor;
+            set
+            {
+                _backgroundColor = value;
+                OnPropertyChanged();
+                ChangeImageBackground();
+            }
+        }
+
+        public ObservableCollection<ProfileImageModel> Images
+        {
+            get => _images;
+            set
+            {
+                _images = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public int SelectedIndex
+        {
+            get => _selectedIndex;
+            set
+            {
+                _selectedIndex = value;
+
+                if (_selectedIndex == -1)
+                {
+                    SelectedImage = null;
+                }
+                else
+                {
+                    SelectedImage = _images[_selectedIndex].Data;
+                }
+
+                OnPropertyChanged();
+            }
+        }
+
+        public byte[] SelectedImage
+        {
+            get => _selectedImage;
+            private set => _selectedImage = value;
+        }
+
+        private void LoadImagesFromStore()
+        {
+            Images.Clear();
+
+            foreach (var image in _avatarStore)
+            {
+                Images.Add(new ProfileImageModel(image.Key, image.Value));
+            }
+        }
+
+        private void ChangeImageBackground()
+        {
+            foreach (var image in Images)
+            {
+                image.BackgroundColor = new SolidColorBrush(BackgroundColor);
+            }
+        }
+
+        public static void PreloadAvatars(ContentManager contentManager, VirtualFileSystem virtualFileSystem)
+        {
+            if (_avatarStore.Count > 0)
+            {
+                return;
+            }
+
+            string contentPath = contentManager.GetInstalledContentPath(0x010000000000080A, StorageId.BuiltInSystem, NcaContentType.Data);
+            string avatarPath = virtualFileSystem.SwitchPathToSystemPath(contentPath);
+
+            if (!string.IsNullOrWhiteSpace(avatarPath))
+            {
+                using (IStorage ncaFileStream = new LocalStorage(avatarPath, FileAccess.Read, FileMode.Open))
+                {
+                    Nca nca = new(virtualFileSystem.KeySet, ncaFileStream);
+                    IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, IntegrityCheckLevel.ErrorOnInvalid);
+
+                    foreach (DirectoryEntryEx item in romfs.EnumerateEntries())
+                    {
+                        // TODO: Parse DatabaseInfo.bin and table.bin files for more accuracy.
+                        if (item.Type == DirectoryEntryType.File && item.FullPath.Contains("chara") && item.FullPath.Contains("szs"))
+                        {
+                            using var file = new UniqueRef<IFile>();
+
+                            romfs.OpenFile(ref file.Ref, ("/" + item.FullPath).ToU8Span(), OpenMode.Read).ThrowIfFailure();
+
+                            using (MemoryStream stream = new())
+                            using (MemoryStream streamPng = new())
+                            {
+                                file.Get.AsStream().CopyTo(stream);
+
+                                stream.Position = 0;
+
+                                Image avatarImage = Image.LoadPixelData<Rgba32>(DecompressYaz0(stream), 256, 256);
+
+                                avatarImage.SaveAsPng(streamPng);
+
+                                _avatarStore.Add(item.FullPath, streamPng.ToArray());
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        private static byte[] DecompressYaz0(Stream stream)
+        {
+            using (BinaryReader reader = new(stream))
+            {
+                reader.ReadInt32(); // Magic
+
+                uint decodedLength = BinaryPrimitives.ReverseEndianness(reader.ReadUInt32());
+
+                reader.ReadInt64(); // Padding
+
+                byte[] input = new byte[stream.Length - stream.Position];
+                stream.Read(input, 0, input.Length);
+
+                uint inputOffset = 0;
+
+                byte[] output = new byte[decodedLength];
+                uint outputOffset = 0;
+
+                ushort mask = 0;
+                byte header = 0;
+
+                while (outputOffset < decodedLength)
+                {
+                    if ((mask >>= 1) == 0)
+                    {
+                        header = input[inputOffset++];
+                        mask = 0x80;
+                    }
+
+                    if ((header & mask) != 0)
+                    {
+                        if (outputOffset == output.Length)
+                        {
+                            break;
+                        }
+
+                        output[outputOffset++] = input[inputOffset++];
+                    }
+                    else
+                    {
+                        byte byte1 = input[inputOffset++];
+                        byte byte2 = input[inputOffset++];
+
+                        uint dist = (uint)((byte1 & 0xF) << 8) | byte2;
+                        uint position = outputOffset - (dist + 1);
+
+                        uint length = (uint)byte1 >> 4;
+                        if (length == 0)
+                        {
+                            length = (uint)input[inputOffset++] + 0x12;
+                        }
+                        else
+                        {
+                            length += 2;
+                        }
+
+                        uint gap = outputOffset - position;
+                        uint nonOverlappingLength = length;
+
+                        if (nonOverlappingLength > gap)
+                        {
+                            nonOverlappingLength = gap;
+                        }
+
+                        Buffer.BlockCopy(output, (int)position, output, (int)outputOffset, (int)nonOverlappingLength);
+                        outputOffset += nonOverlappingLength;
+                        position += nonOverlappingLength;
+                        length -= nonOverlappingLength;
+
+                        while (length-- > 0)
+                        {
+                            output[outputOffset++] = output[position++];
+                        }
+                    }
+                }
+
+                return output;
+            }
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/UserProfileImageSelectorViewModel.cs

@@ -0,0 +1,18 @@
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    internal class UserProfileImageSelectorViewModel : BaseModel
+    {
+        private bool _firmwareFound;
+
+        public bool FirmwareFound
+        {
+            get => _firmwareFound;
+        
+            set
+            {
+                _firmwareFound = value;
+                OnPropertyChanged();
+            }
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/UserProfileViewModel.cs

@@ -0,0 +1,25 @@
+using Microsoft.IdentityModel.Tokens;
+using System;
+using System.Collections.ObjectModel;
+using UserProfile = Ryujinx.Ava.UI.Models.UserProfile;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class UserProfileViewModel : BaseModel, IDisposable
+    {
+        public UserProfileViewModel()
+        {
+            Profiles = new ObservableCollection<BaseModel>();
+            LostProfiles = new ObservableCollection<UserProfile>();
+            IsEmpty = LostProfiles.IsNullOrEmpty();
+        }
+
+        public ObservableCollection<BaseModel> Profiles { get; set; }
+
+        public ObservableCollection<UserProfile> LostProfiles { get; set; }
+
+        public bool IsEmpty { get; set; }
+
+        public void Dispose() { }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/UserSaveManagerViewModel.cs

@@ -0,0 +1,120 @@
+using DynamicData;
+using DynamicData.Binding;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.Models;
+using Ryujinx.HLE.HOS.Services.Account.Acc;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class UserSaveManagerViewModel : BaseModel
+    {
+        private int _sortIndex;
+        private int _orderIndex;
+        private string _search;
+        private ObservableCollection<SaveModel> _saves = new();
+        private ObservableCollection<SaveModel> _views = new();
+        private AccountManager _accountManager;
+
+        public string SaveManagerHeading => LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.SaveManagerHeading, _accountManager.LastOpenedUser.Name, _accountManager.LastOpenedUser.UserId);
+
+        public int SortIndex
+        {
+            get => _sortIndex;
+            set
+            {
+                _sortIndex = value;
+                OnPropertyChanged();
+                Sort();
+            }
+        }
+
+        public int OrderIndex
+        {
+            get => _orderIndex;
+            set
+            {
+                _orderIndex = value;
+                OnPropertyChanged();
+                Sort();
+            }
+        }
+
+        public string Search
+        {
+            get => _search;
+            set
+            {
+                _search = value;
+                OnPropertyChanged();
+                Sort();
+            }
+        }
+
+        public ObservableCollection<SaveModel> Saves
+        {
+            get => _saves;
+            set
+            {
+                _saves = value;
+                OnPropertyChanged();
+                Sort();
+            }
+        }
+
+        public ObservableCollection<SaveModel> Views
+        {
+            get => _views;
+            set
+            {
+                _views = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public UserSaveManagerViewModel(AccountManager accountManager)
+        {
+            _accountManager = accountManager;
+        }
+
+        public void Sort()
+        {
+            Saves.AsObservableChangeSet()
+                .Filter(Filter)
+                .Sort(GetComparer())
+                .Bind(out var view).AsObservableList();
+
+            _views.Clear();
+            _views.AddRange(view);
+            OnPropertyChanged(nameof(Views));
+        }
+
+        private bool Filter(object arg)
+        {
+            if (arg is SaveModel save)
+            {
+                return string.IsNullOrWhiteSpace(_search) || save.Title.ToLower().Contains(_search.ToLower());
+            }
+
+            return false;
+        }
+
+        private IComparer<SaveModel> GetComparer()
+        {
+            switch (SortIndex)
+            {
+                case 0:
+                    return OrderIndex == 0
+                        ? SortExpressionComparer<SaveModel>.Ascending(save => save.Title)
+                        : SortExpressionComparer<SaveModel>.Descending(save => save.Title);
+                case 1:
+                    return OrderIndex == 0
+                        ? SortExpressionComparer<SaveModel>.Ascending(save => save.Size)
+                        : SortExpressionComparer<SaveModel>.Descending(save => save.Size);
+                default:
+                    return null;
+            }
+        }
+    }
+}