diff --git a/Directory.Packages.props b/Directory.Packages.props
index 602295d15..ccbcb3f6b 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -42,8 +42,6 @@
     <PackageVersion Include="Ryujinx.Graphics.Vulkan.Dependencies.MoltenVK" Version="1.2.0" />
     <PackageVersion Include="Ryujinx.LibHac" Version="0.20.0" />
     <PackageVersion Include="Ryujinx.SDL2-CS" Version="2.30.0-build32" />
-    <PackageVersion Include="Ryujinx.UpdateClient" Version="1.0.29" />
-    <PackageVersion Include="Ryujinx.Systems.Update.Common" Version="1.0.29" />
     <PackageVersion Include="Gommon" Version="2.7.1.1" />
     <PackageVersion Include="securifybv.ShellLink" Version="0.1.0" />
     <PackageVersion Include="Sep" Version="0.6.0" />
diff --git a/assets/locales.json b/assets/locales.json
index d931017aa..3102b7d2f 100644
--- a/assets/locales.json
+++ b/assets/locales.json
@@ -13144,7 +13144,7 @@
         "tr_TR": "",
         "uk_UA": "",
         "zh_CN": "无法转换从更新服务器接收的 Ryujinx 版本。",
-        "zh_TW": "無法轉換從更新伺服器接收的 Ryujinx 版本。"
+        "zh_TW": "無法轉換從更新何服器接收的 Ryujinx 版本。"
       }
     },
     {
@@ -23669,7 +23669,7 @@
         "tr_TR": "",
         "uk_UA": "Вимкнути хостинг P2P мережі, піри будуть підключатися через майстер-сервер замість прямого з'єднання з вами.",
         "zh_CN": "禁用 P2P 网络连接，对方将通过主服务器进行连接，而不是直接连接到您。",
-        "zh_TW": "停用對等網路代管 (P2P Network Hosting), 用戶群會經過代理伺服器而非直接連線至你的主機。"
+        "zh_TW": "停用對等網路代管 (P2P Network Hosting), 用戶群會經過代理何服器而非直接連線至你的主機。"
       }
     },
     {
diff --git a/nuget.config b/nuget.config
index 26f795ba1..77eadcf88 100644
--- a/nuget.config
+++ b/nuget.config
@@ -10,13 +10,11 @@
     </packageSources>
     <packageSourceMapping>
         <!-- key value for <packageSource> should match key values from <packageSources> element -->
-        <!-- These are defined and .NET still yells about multiple package sources with no mappings. Not sure what to do, this is in the docs lol -->
         <packageSource key="nuget.org">
             <package pattern="*" />
         </packageSource>
         <packageSource key="Ryujinx.UpdateClient">
             <package pattern="Ryujinx.UpdateClient" />
-            <package pattern="Ryujinx.Systems.Update.Common" />
         </packageSource>
         <!--<packageSource key="LibHacAlpha">
             <package pattern="Ryujinx.LibHac" />
diff --git a/src/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ILibraryAppletCreator.cs b/src/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ILibraryAppletCreator.cs
index f1ae81f8d..23ba99b04 100644
--- a/src/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ILibraryAppletCreator.cs
+++ b/src/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ILibraryAppletCreator.cs
@@ -21,21 +21,6 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
             return ResultCode.Success;
         }
 
-        [CommandCmif(3)] // 20.0.0+
-        // CreateLibraryAppletEx(u32, u32, u64) -> object<nn::am::service::ILibraryAppletAccessor>
-        public ResultCode CreateLibraryAppletEx(ServiceCtx context)
-        {
-            AppletId appletId = (AppletId)context.RequestData.ReadInt32();
-
-            _ = context.RequestData.ReadInt32(); // libraryAppletMode
-
-            _ = context.RequestData.ReadUInt64(); // threadId
-
-            MakeObject(context, new ILibraryAppletAccessor(appletId, context.Device.System));
-
-            return ResultCode.Success;
-        }
-
         [CommandCmif(10)]
         // CreateStorage(u64) -> object<nn::am::service::IStorage>
         public ResultCode CreateStorage(ServiceCtx context)
diff --git a/src/Ryujinx/Common/Models/Github/GithubReleaseAssetJsonResponse.cs b/src/Ryujinx/Common/Models/Github/GithubReleaseAssetJsonResponse.cs
new file mode 100644
index 000000000..633e16596
--- /dev/null
+++ b/src/Ryujinx/Common/Models/Github/GithubReleaseAssetJsonResponse.cs
@@ -0,0 +1,9 @@
+namespace Ryujinx.Ava.Common.Models.Github
+{
+    public class GithubReleaseAssetJsonResponse
+    {
+        public string Name { get; set; }
+        public string State { get; set; }
+        public string BrowserDownloadUrl { get; set; }
+    }
+}
diff --git a/src/Ryujinx/Common/Models/Github/GithubReleasesJsonResponse.cs b/src/Ryujinx/Common/Models/Github/GithubReleasesJsonResponse.cs
new file mode 100644
index 000000000..af00121fe
--- /dev/null
+++ b/src/Ryujinx/Common/Models/Github/GithubReleasesJsonResponse.cs
@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+
+namespace Ryujinx.Ava.Common.Models.Github
+{
+    public class GithubReleasesJsonResponse
+    {
+        public string Name { get; set; }
+
+        public string TagName { get; set; }
+        public List<GithubReleaseAssetJsonResponse> Assets { get; set; }
+    }
+}
diff --git a/src/Ryujinx/Common/Models/Github/GithubReleasesJsonSerializerContext.cs b/src/Ryujinx/Common/Models/Github/GithubReleasesJsonSerializerContext.cs
new file mode 100644
index 000000000..a450ab22d
--- /dev/null
+++ b/src/Ryujinx/Common/Models/Github/GithubReleasesJsonSerializerContext.cs
@@ -0,0 +1,7 @@
+using System.Text.Json.Serialization;
+
+namespace Ryujinx.Ava.Common.Models.Github
+{
+    [JsonSerializable(typeof(GithubReleasesJsonResponse), GenerationMode = JsonSourceGenerationMode.Metadata)]
+    public partial class GithubReleasesJsonSerializerContext : JsonSerializerContext;
+}
diff --git a/src/Ryujinx/Ryujinx.csproj b/src/Ryujinx/Ryujinx.csproj
index 480d14781..6860e2c4e 100644
--- a/src/Ryujinx/Ryujinx.csproj
+++ b/src/Ryujinx/Ryujinx.csproj
@@ -65,8 +65,6 @@
     <PackageReference Include="Ryujinx.Audio.OpenAL.Dependencies" Condition="'$(RuntimeIdentifier)' != 'linux-x64' AND '$(RuntimeIdentifier)' != 'linux-arm64' AND '$(RuntimeIdentifier)' != 'osx-x64' AND '$(RuntimeIdentifier)' != 'osx-arm64'" />
     <PackageReference Include="Ryujinx.Graphics.Nvdec.Dependencies.AllArch" />
     <PackageReference Include="Ryujinx.Graphics.Vulkan.Dependencies.MoltenVK" Condition="'$(RuntimeIdentifier)' != 'linux-x64' AND '$(RuntimeIdentifier)' != 'linux-arm64' AND '$(RuntimeIdentifier)' != 'win-x64' AND '$(RuntimeIdentifier)' != 'win-arm64'" />
-    <PackageReference Include="Ryujinx.UpdateClient" />
-    <PackageReference Include="Ryujinx.Systems.Update.Common" />
     <PackageReference Include="securifybv.ShellLink" />
     <PackageReference Include="Sep" />
     <PackageReference Include="Silk.NET.Vulkan" />
diff --git a/src/Ryujinx/Systems/AppHost.cs b/src/Ryujinx/Systems/AppHost.cs
index 1c5f64309..74005400c 100644
--- a/src/Ryujinx/Systems/AppHost.cs
+++ b/src/Ryujinx/Systems/AppHost.cs
@@ -75,7 +75,6 @@ namespace Ryujinx.Ava.Systems
 
         private readonly long _ticksPerFrame;
         private readonly Stopwatch _chrono;
-        private readonly Stopwatch _playTimer;
         private long _ticks;
 
         private readonly AccountManager _accountManager;
@@ -176,7 +175,6 @@ namespace Ryujinx.Ava.Systems
 
             _chrono = new Stopwatch();
             _ticksPerFrame = Stopwatch.Frequency / TargetFps;
-            _playTimer = new Stopwatch();
 
             if (ApplicationPath.StartsWith("@SystemContent"))
             {
@@ -567,7 +565,6 @@ namespace Ryujinx.Ava.Systems
         public void Stop()
         {
             _isActive = false;
-            _playTimer.Stop();
         }
 
         private void Exit()
@@ -619,7 +616,7 @@ namespace Ryujinx.Ava.Systems
         private void Dispose()
         {
             if (Device.Processes != null)
-                MainWindowViewModel.UpdateGameMetadata(Device.Processes.ActiveApplication.ProgramIdText, _playTimer.Elapsed);
+                MainWindowViewModel.UpdateGameMetadata(Device.Processes.ActiveApplication.ProgramIdText);
 
             ConfigurationState.Instance.System.IgnoreMissingServices.Event -= UpdateIgnoreMissingServicesState;
             ConfigurationState.Instance.Graphics.AspectRatio.Event -= UpdateAspectRatioState;
@@ -638,7 +635,6 @@ namespace Ryujinx.Ava.Systems
             _gpuCancellationTokenSource.Dispose();
 
             _chrono.Stop();
-            _playTimer.Stop();
         }
 
         public void DisposeGpu()
@@ -872,7 +868,6 @@ namespace Ryujinx.Ava.Systems
             ApplicationLibrary.LoadAndSaveMetaData(Device.Processes.ActiveApplication.ProgramIdText,
                 appMetadata => appMetadata.UpdatePreGame()
             );
-            _playTimer.Start();
 
             return true;
         }
@@ -882,7 +877,6 @@ namespace Ryujinx.Ava.Systems
             Device?.System.TogglePauseEmulation(false);
 
             _viewModel.IsPaused = false;
-            _playTimer.Start();
             _viewModel.Title = TitleHelper.ActiveApplicationTitle(Device?.Processes.ActiveApplication, Program.Version, !ConfigurationState.Instance.ShowOldUI);
             Logger.Info?.Print(LogClass.Emulation, "Emulation was resumed");
         }
@@ -892,7 +886,6 @@ namespace Ryujinx.Ava.Systems
             Device?.System.TogglePauseEmulation(true);
 
             _viewModel.IsPaused = true;
-            _playTimer.Stop();
             _viewModel.Title = TitleHelper.ActiveApplicationTitle(Device?.Processes.ActiveApplication, Program.Version, !ConfigurationState.Instance.ShowOldUI, LocaleManager.Instance[LocaleKeys.Paused]);
             Logger.Info?.Print(LogClass.Emulation, "Emulation was paused");
         }
diff --git a/src/Ryujinx/Systems/AppLibrary/ApplicationMetadata.cs b/src/Ryujinx/Systems/AppLibrary/ApplicationMetadata.cs
index 8940657b0..9d8488aeb 100644
--- a/src/Ryujinx/Systems/AppLibrary/ApplicationMetadata.cs
+++ b/src/Ryujinx/Systems/AppLibrary/ApplicationMetadata.cs
@@ -33,11 +33,19 @@ namespace Ryujinx.Ava.Systems.AppLibrary
         /// <summary>
         /// Updates <see cref="LastPlayed"/> and <see cref="TimePlayed"/>. Call this after a game ends.
         /// </summary>
-        /// <param name="playTime">The active gameplay time this past session.</param>
-        public void UpdatePostGame(TimeSpan playTime)
+        public void UpdatePostGame()
         {
+            DateTime? prevLastPlayed = LastPlayed;
             UpdatePreGame();
-            TimePlayed += playTime;
+
+            if (!prevLastPlayed.HasValue)
+            {
+                return;
+            }
+
+            TimeSpan diff = DateTime.UtcNow - prevLastPlayed.Value;
+            double newTotalSeconds = TimePlayed.Add(diff).TotalSeconds;
+            TimePlayed = TimeSpan.FromSeconds(Math.Round(newTotalSeconds, MidpointRounding.AwayFromZero));
         }
     }
 }
diff --git a/src/Ryujinx/Systems/Updater/Updater.GitLab.cs b/src/Ryujinx/Systems/Updater/Updater.GitLab.cs
index 3411daa5d..f49f60ab9 100644
--- a/src/Ryujinx/Systems/Updater/Updater.GitLab.cs
+++ b/src/Ryujinx/Systems/Updater/Updater.GitLab.cs
@@ -4,26 +4,42 @@ using Ryujinx.Ava.UI.Helpers;
 using Ryujinx.Common;
 using Ryujinx.Common.Helper;
 using Ryujinx.Common.Logging;
-using Ryujinx.Systems.Update.Client;
-using Ryujinx.Systems.Update.Common;
 using System;
+using System.Net.Http;
+using System.Net.Http.Json;
+using System.Runtime.InteropServices;
+using System.Text.Json.Serialization;
 using System.Threading.Tasks;
 
 namespace Ryujinx.Ava.Systems
 {
     internal static partial class Updater
     {
-        private static VersionResponse _versionResponse;
+        private static string CreateUpdateQueryUrl()
+        {
+#pragma warning disable CS8524
+            var os = RunningPlatform.CurrentOS switch
+#pragma warning restore CS8524
+            {
+                OperatingSystemType.MacOS => "mac",
+                OperatingSystemType.Linux => "linux",
+                OperatingSystemType.Windows => "win"
+            };
 
-        private static UpdateClient CreateUpdateClient()
-            => UpdateClient.Builder()
-                .WithServerEndpoint("https://update.ryujinx.app") // This is the default, and doesn't need to be provided; it's here for transparency.
-                .WithLogger((format, args, caller) => 
-                    Logger.Info?.Print(
-                        LogClass.Application, 
-                        args.Length is 0 ? format : format.Format(args), 
-                        caller: caller)
-                    );
+            var arch = RunningPlatform.Architecture switch
+            {
+                Architecture.Arm64 => "arm",
+                Architecture.X64 => "amd64",
+                _ => null
+            };
+
+            if (arch is null)
+                return null;
+
+            var rc = ReleaseInformation.IsCanaryBuild ? "canary" : "stable";
+
+            return $"https://update.ryujinx.app/latest/query?os={os}&arch={arch}&rc={rc}";
+        }
 
         public static async Task<Optional<(Version Current, Version Incoming)>> CheckVersionAsync(bool showVersionUpToDate = false)
         {
@@ -41,31 +57,39 @@ namespace Ryujinx.Ava.Systems
                 return default;
             }
 
-            using UpdateClient updateClient = CreateUpdateClient();
+            if (CreateUpdateQueryUrl() is not {} updateUrl)
+            {
+                Logger.Error?.Print(LogClass.Application, "Could not determine URL for updates.");
+                
+                _running = false;
+
+                return default;
+            }
+
+            Logger.Info?.Print(LogClass.Application, $"Checking for updates from {updateUrl}.");
+
+            // Get latest version number from update.ryujinx.app API
+            using HttpClient jsonClient = ConstructHttpClient();
 
             try
             {
-                _versionResponse = await updateClient.QueryLatestAsync(ReleaseInformation.IsCanaryBuild
-                    ? ReleaseChannel.Canary
-                    : ReleaseChannel.Stable);
+                UpdaterResponse response =
+                    await jsonClient.GetFromJsonAsync(updateUrl, UpdaterResponseJsonContext.Default.UpdaterResponse);
+
+                _buildVer = response.Tag;
+                _buildUrl = response.DownloadUrl;
+                _changelogUrlFormat = response.ReleaseUrlFormat;
             }
             catch (Exception e)
             {
-                Logger.Error?.Print(LogClass.Application, $"An error occurred when requesting for updates ({e.GetType().AsFullNamePrettyString()}): {e.Message}");
+                Logger.Error?.Print(LogClass.Application, $"An error occurred when parsing JSON response from API ({e.GetType().AsFullNamePrettyString()}): {e.Message}");
 
                 _running = false;
                 return default;
             }
-            
-            if (_versionResponse == null)
-            {
-                // logging is done via the UpdateClient library
-                _running = false;
-                return default;
-            }
 
             // If build URL not found, assume no new update is available.
-            if (_versionResponse.ArtifactUrl is null or "")
+            if (_buildUrl is null or "")
             {
                 if (showVersionUpToDate)
                 {
@@ -75,7 +99,7 @@ namespace Ryujinx.Ava.Systems
 
                     if (userResult is UserResult.Ok)
                     {
-                        OpenHelper.OpenUrl(_versionResponse.ReleaseUrlFormat.Format(currentVersion));
+                        OpenHelper.OpenUrl(_changelogUrlFormat.Format(currentVersion));
                     }
                 }
 
@@ -87,7 +111,7 @@ namespace Ryujinx.Ava.Systems
             }
 
 
-            if (!Version.TryParse(_versionResponse.Version, out Version newVersion))
+            if (!Version.TryParse(_buildVer, out Version newVersion))
             {
                 Logger.Error?.Print(LogClass.Application,
                     $"Failed to convert the received {RyujinxApp.FullAppName} version from the update server!");
@@ -103,5 +127,17 @@ namespace Ryujinx.Ava.Systems
 
             return (currentVersion, newVersion);
         }
+        
+        [JsonSerializable(typeof(UpdaterResponse))]
+        partial class UpdaterResponseJsonContext : JsonSerializerContext;
+
+        public class UpdaterResponse
+        {
+            [JsonPropertyName("tag")] public string Tag { get; set; }
+            [JsonPropertyName("download_url")] public string DownloadUrl { get; set; }
+            [JsonPropertyName("web_url")] public string ReleaseUrl { get; set; }
+
+            [JsonIgnore] public string ReleaseUrlFormat => ReleaseUrl.Replace(Tag, "{0}");
+        }
     }
 }
diff --git a/src/Ryujinx/Systems/Updater/Updater.cs b/src/Ryujinx/Systems/Updater/Updater.cs
index 39bb5d9d4..40c1da175 100644
--- a/src/Ryujinx/Systems/Updater/Updater.cs
+++ b/src/Ryujinx/Systems/Updater/Updater.cs
@@ -5,11 +5,13 @@ using ICSharpCode.SharpZipLib.GZip;
 using ICSharpCode.SharpZipLib.Tar;
 using ICSharpCode.SharpZipLib.Zip;
 using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.Common.Models.Github;
 using Ryujinx.Ava.UI.Helpers;
 using Ryujinx.Ava.Utilities;
 using Ryujinx.Common;
 using Ryujinx.Common.Helper;
 using Ryujinx.Common.Logging;
+using Ryujinx.Common.Utilities;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
@@ -33,13 +35,17 @@ namespace Ryujinx.Ava.Systems
         private static readonly string _updateDir = Path.Combine(Path.GetTempPath(), "Ryujinx", "update");
         private static readonly string _updatePublishDir = Path.Combine(_updateDir, "publish");
         private const int ConnectionCount = 4;
-        
+
+        private static string _buildVer;
+        private static string _buildUrl;
         private static long _buildSize;
         private static bool _updateSuccessful;
         private static bool _running;
 
         private static readonly string[] _windowsDependencyDirs = [];
         
+        private static string _changelogUrlFormat = null;
+        
         public static async Task BeginUpdateAsync(bool showVersionUpToDate = false)
         {
             if (_running)
@@ -66,7 +72,7 @@ namespace Ryujinx.Ava.Systems
 
                     if (userResult is UserResult.Ok)
                     {
-                        OpenHelper.OpenUrl(_versionResponse.ReleaseUrlFormat.Format(currentVersion));
+                        OpenHelper.OpenUrl(_changelogUrlFormat.Format(currentVersion));
                     }
                 }
 
@@ -86,7 +92,7 @@ namespace Ryujinx.Ava.Systems
                 // GitLab instance is located in Ukraine. Connection times will vary across the world.
                 buildSizeClient.Timeout = TimeSpan.FromSeconds(10);
 
-                HttpResponseMessage message = await buildSizeClient.GetAsync(new Uri(_versionResponse.ArtifactUrl), HttpCompletionOption.ResponseHeadersRead);
+                HttpResponseMessage message = await buildSizeClient.GetAsync(new Uri(_buildUrl), HttpCompletionOption.ResponseHeadersRead);
 
                 _buildSize = message.Content.Headers.ContentRange.Length.Value;
             }
@@ -116,7 +122,7 @@ namespace Ryujinx.Ava.Systems
                 switch (shouldUpdate)
                 {
                     case UserResult.Yes:
-                        await UpdateRyujinx(_versionResponse.ArtifactUrl);
+                        await UpdateRyujinx(_buildUrl);
                         break;
                     // Secondary button maps to no, which in this case is the show changelog button.
                     case UserResult.No:
diff --git a/src/Ryujinx/UI/ViewModels/MainWindowViewModel.cs b/src/Ryujinx/UI/ViewModels/MainWindowViewModel.cs
index 5e7df4d62..8b9b04511 100644
--- a/src/Ryujinx/UI/ViewModels/MainWindowViewModel.cs
+++ b/src/Ryujinx/UI/ViewModels/MainWindowViewModel.cs
@@ -1688,8 +1688,8 @@ namespace Ryujinx.Ava.UI.ViewModels
                 RendererHostControl.Focus();
             });
 
-        public static void UpdateGameMetadata(string titleId, TimeSpan playTime)
-            => ApplicationLibrary.LoadAndSaveMetaData(titleId, appMetadata => appMetadata.UpdatePostGame(playTime));
+        public static void UpdateGameMetadata(string titleId)
+            => ApplicationLibrary.LoadAndSaveMetaData(titleId, appMetadata => appMetadata.UpdatePostGame());
 
         public void RefreshFirmwareStatus()
         {
diff --git a/src/Ryujinx/UI/Windows/MainWindow.axaml.cs b/src/Ryujinx/UI/Windows/MainWindow.axaml.cs
index 195b1470a..a2d7ff657 100644
--- a/src/Ryujinx/UI/Windows/MainWindow.axaml.cs
+++ b/src/Ryujinx/UI/Windows/MainWindow.axaml.cs
@@ -213,13 +213,13 @@ namespace Ryujinx.Ava.UI.Windows
             }
         }
 
-        public async void Application_Opened(object sender, ApplicationOpenedEventArgs args)
+        public void Application_Opened(object sender, ApplicationOpenedEventArgs args)
         {
             if (args.Application != null)
             {
                 ViewModel.SelectedIcon = args.Application.Icon;
 
-                await ViewModel.LoadApplication(args.Application);
+                ViewModel.LoadApplication(args.Application).Wait();
             }
 
             args.Handled = true;