diff --git a/EllieHub/EllieHub.csproj b/EllieHub/EllieHub.csproj
index 1c3af54..45e59e6 100644
--- a/EllieHub/EllieHub.csproj
+++ b/EllieHub/EllieHub.csproj
@@ -8,7 +8,6 @@
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <WarningsAsErrors>Nullable</WarningsAsErrors>
-        <TreatWarningsAsErrors>True</TreatWarningsAsErrors>
         <EnforceCodeStyleInBuild>True</EnforceCodeStyleInBuild>
         <GenerateDocumentationFile>True</GenerateDocumentationFile>
         <BuiltInComInteropSupport>True</BuiltInComInteropSupport>
@@ -16,11 +15,12 @@
 
         <!--Publishing-->
         <PublishSingleFile>true</PublishSingleFile>
+        <EnableCompressionInSingleFile>true</EnableCompressionInSingleFile>
         <SelfContained>true</SelfContained>
         <DebugType>embedded</DebugType>
 
         <!--Version-->
-        <VersionPrefix>1.0.2.0</VersionPrefix>
+        <VersionPrefix>1.0.3.0</VersionPrefix>
 
         <!--Avalonia Settings-->
         <ApplicationManifest>app.manifest</ApplicationManifest>
@@ -30,6 +30,13 @@
         <UseAppHost>true</UseAppHost>
     </PropertyGroup>
 
+    <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+        <TreatWarningsAsErrors>False</TreatWarningsAsErrors>
+    </PropertyGroup>
+    <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
+        <TreatWarningsAsErrors>True</TreatWarningsAsErrors>
+    </PropertyGroup>
+
     <ItemGroup>
         <AvaloniaResource Include="Assets\**" />
 
diff --git a/EllieHub/Extensions/WindowExt.cs b/EllieHub/Extensions/WindowExt.cs
index 02de951..71bbe95 100644
--- a/EllieHub/Extensions/WindowExt.cs
+++ b/EllieHub/Extensions/WindowExt.cs
@@ -83,8 +83,8 @@ public static class WindowExt
     {
         return (!activeView.TryFindResource(resourceName, theme, out var resource))
             ? throw new InvalidOperationException($"Resource '{resourceName}' was not found.")
-            : (!Utilities.TryCastTo<T>(resource, out var result))
-                ? throw new InvalidCastException($"Could not convert resource of type '{resource?.GetType()?.FullName}' to '{nameof(T)}'.")
-                : result;
+            : (resource is T castResource)
+                ? castResource
+                : throw new InvalidCastException($"Could not convert resource of type '{resource?.GetType()?.FullName}' to '{nameof(T)}'.");
     }
 }
\ No newline at end of file
diff --git a/EllieHub/Features/AppConfig/ViewModels/ConfigViewModel.cs b/EllieHub/Features/AppConfig/ViewModels/ConfigViewModel.cs
index 08d1c41..54861b0 100644
--- a/EllieHub/Features/AppConfig/ViewModels/ConfigViewModel.cs
+++ b/EllieHub/Features/AppConfig/ViewModels/ConfigViewModel.cs
@@ -20,7 +20,7 @@ namespace EllieHub.Features.AppConfig.ViewModels;
 /// </summary>
 public class ConfigViewModel : ViewModelBase<ConfigView>
 {
-    private static readonly string _unixNotice = Environment.OSVersion.Platform is not PlatformID.Unix
+    private static readonly string _unixNotice = (Environment.OSVersion.Platform is not PlatformID.Unix)
         ? string.Empty
         : Environment.NewLine + "To make the dependencies accessible to your bot instances without this updater, consider installing " +
         $"them through your package manager or adding the directory \"{AppStatics.AppDepsUri}\" to your PATH environment variable.";
diff --git a/EllieHub/Features/AppWindow/Views/Controls/LateralBarView.axaml.cs b/EllieHub/Features/AppWindow/Views/Controls/LateralBarView.axaml.cs
index 0e10701..1885fc6 100644
--- a/EllieHub/Features/AppWindow/Views/Controls/LateralBarView.axaml.cs
+++ b/EllieHub/Features/AppWindow/Views/Controls/LateralBarView.axaml.cs
@@ -69,10 +69,10 @@ public partial class LateralBarView : ReactiveUserControl<LateralBarViewModel>
     /// <exception cref="InvalidOperationException">Occurs when the visual tree has an unexpected structure.</exception>
     public void ApplyBotButtonBorder(Button button)
     {
-        if (!Utilities.TryCastTo<Border>(button.Parent?.Parent, out var border))
+        if (button.Parent?.Parent is not Border border)
             throw new InvalidOperationException("Visual tree has an unexpected structure.");
 
-        if (!Utilities.TryCastTo<ImmutableSolidColorBrush>(this.FindResource(base.ActualThemeVariant, "BotSelectionColor"), out var resourceColor))
+        if (this.FindResource(base.ActualThemeVariant, "BotSelectionColor") is not ImmutableSolidColorBrush resourceColor)
             return;
 
         border.BorderBrush = resourceColor;
@@ -95,7 +95,7 @@ public partial class LateralBarView : ReactiveUserControl<LateralBarViewModel>
     private void LoadBotViewModel(object sender, RoutedEventArgs eventArgs)
     {
         // "sender", for some reason, is not one of the buttons stored in the lateral bar's view-model.
-        if (Utilities.TryCastTo<Button>(sender, out var button) && this.ViewModel!.BotButtonList.First(x => x.Content == button.Content).IsEnabled)
+        if (sender is Button button && this.ViewModel!.BotButtonList.First(x => x.Content == button.Content).IsEnabled)
             BotButtonClick?.Invoke(button, eventArgs);
     }
 
@@ -108,10 +108,11 @@ public partial class LateralBarView : ReactiveUserControl<LateralBarViewModel>
     /// <exception cref="InvalidOperationException">Occurs when the visual tree has an unexpected structure.</exception>
     private void OnBotButtonLoad(object? sender, VisualTreeAttachmentEventArgs eventArgs)
     {
-        if (!Utilities.TryCastTo<Panel>(sender, out var panel)
-            || !Utilities.TryCastTo<SKImageView>(((Border)panel.Children[0]).Child, out var botAvatar)
-            || !Utilities.TryCastTo<Button>(panel.Children[1], out var button)
-            || !Utilities.TryCastTo<Guid>(button.Content, out var botId))
+        if (sender is not Panel panel
+            || panel.Children[0] is not Border border
+            || border.Child is not SKImageView botAvatar
+            || panel.Children[1] is not Button button
+            || button.Content is not Guid botId)
             throw new InvalidOperationException("Visual tree has an unexpected structure.");
 
         // Set the avatar
@@ -132,7 +133,7 @@ public partial class LateralBarView : ReactiveUserControl<LateralBarViewModel>
     /// <exception cref="InvalidOperationException">Occurs when <paramref name="sender"/> is not a <see cref="Button"/>.</exception>
     private void DownsizeBotAvatar(object? sender, PointerPressedEventArgs eventArgs)
     {
-        if (!Utilities.TryCastTo<Button>(sender, out var button))
+        if (sender is not Button button)
             throw new InvalidOperationException($"Sender is not a {nameof(Button)}.");
 
         var botAvatar = FindAvatarComponent(button);
@@ -149,7 +150,7 @@ public partial class LateralBarView : ReactiveUserControl<LateralBarViewModel>
     /// <exception cref="InvalidOperationException">Occurs when <paramref name="sender"/> is not a <see cref="Button"/>.</exception>
     private void UpsizeBotAvatar(object? sender, PointerReleasedEventArgs eventArgs)
     {
-        if (!Utilities.TryCastTo<Button>(sender, out var button))
+        if (sender is not Button button)
             throw new InvalidOperationException($"Sender is not a {nameof(Button)}.");
 
         var botAvatar = FindAvatarComponent(button);
@@ -167,7 +168,7 @@ public partial class LateralBarView : ReactiveUserControl<LateralBarViewModel>
     /// <exception cref="InvalidOperationException">Occurs when the component's content is not a Guid.</exception>
     private SKImageView FindAvatarComponent<T>(T component) where T : ContentControl
     {
-        return (!Utilities.TryCastTo<Guid>(component.Content, out var botId))
+        return (component.Content is not Guid botId)
             ? throw new InvalidOperationException($"{nameof(T)} does not contain a bot Id.")
             : FindAvatarComponent(botId);
     }
diff --git a/EllieHub/Features/AppWindow/Views/Windows/AppView.axaml.cs b/EllieHub/Features/AppWindow/Views/Windows/AppView.axaml.cs
index dd3aa09..70205f8 100644
--- a/EllieHub/Features/AppWindow/Views/Windows/AppView.axaml.cs
+++ b/EllieHub/Features/AppWindow/Views/Windows/AppView.axaml.cs
@@ -293,7 +293,7 @@ public partial class AppView : ReactiveWindow<AppViewModel>
     private static BotConfigViewModel GetBotConfigViewModel(Button button, IServiceScopeFactory scopeFactory)
     {
         using var scope = scopeFactory.CreateScope();
-        var botId = (Guid)(button.Content ?? throw new InvalidOperationException("Bot button has no valid Id."));
+        var botId = (button.Content ?? throw new InvalidOperationException("Bot button has no valid Id."));
         var botResolver = scope.ServiceProvider.GetParameterizedService<EllieResolver>(botId);
 
         return scope.ServiceProvider.GetParameterizedService<BotConfigViewModel>(botResolver);
diff --git a/EllieHub/Features/BotConfig/Services/EllieResolver.cs b/EllieHub/Features/BotConfig/Services/EllieResolver.cs
index 3571210..7b0f969 100644
--- a/EllieHub/Features/BotConfig/Services/EllieResolver.cs
+++ b/EllieHub/Features/BotConfig/Services/EllieResolver.cs
@@ -114,34 +114,10 @@ public sealed partial class EllieResolver : IBotResolver
             await _appConfigManager.UpdateBotEntryAsync(Id, x => x with { Version = null }, cToken);
             return null;
         }
-        
-        if (!string.IsNullOrWhiteSpace(botEntry.Version))
-            return botEntry.Version;
 
-        // Ellie is published as a single-file binary, so we have to extract
-        // its contents first in order to read the assembly for its version.
-        using var executableReader = new ExecutableReader(executableUri);
-        var extractDirectoryUri = Path.Combine(_tempDirectory, "EllieBotExtract");
-        var extractAssemblyUri = Path.Combine(extractDirectoryUri, "EllieBot.dll");
-
-        try
-        {
-            await executableReader.ExtractToDirectoryAsync(extractDirectoryUri, cToken);
-
-            var nadekoAssembly = Assembly.LoadFile(extractAssemblyUri);
-            var version = nadekoAssembly.GetName().Version
-                ?? throw new InvalidOperationException($"Could not find version of the assembly at {extractAssemblyUri}.");
-
-            var currentVersion = $"{version.Major}.{version.Minor}.{version.Build}";
-
-            await _appConfigManager.UpdateBotEntryAsync(Id, x => x with { Version = currentVersion }, cToken);
-
-            return currentVersion;
-        }
-        finally
-        {
-            Utilities.TryDeleteDirectory(extractDirectoryUri);
-        }
+        return (string.IsNullOrWhiteSpace(botEntry.Version))
+            ? await GetBotVersionFromAssemblyAsync(executableUri, cToken)
+            : botEntry.Version;
     }
 
     /// <inheritdoc/>
@@ -397,6 +373,51 @@ public sealed partial class EllieResolver : IBotResolver
         return response;
     }
 
+    /// <summary>
+    /// Gets the bot version from the bot's assembly.
+    /// </summary>
+    /// <param name="executableUri">The path to the bot's executable file.</param>
+    /// <param name="cToken">The cancellation token.</param>
+    /// <returns>The version of the bot or <see langword="null"/> if the executable file is not found.</returns>
+    /// <exception cref="InvalidOperationException">Occurs when the assembly file is not found.</exception>
+    private async ValueTask<string?> GetBotVersionFromAssemblyAsync(string executableUri, CancellationToken cToken)
+    {
+        if (!File.Exists(executableUri))
+            return null;
+
+        var directoryUri = Directory.GetParent(executableUri)?.FullName ?? Path.GetPathRoot(executableUri)!;
+        var assemblyUri = Path.Join(directoryUri, "EllieBot.dll");
+        var isSingleFile = !File.Exists(assemblyUri);
+
+        // If Ellie is published as a single-file binary, we have to extract
+        // its contents first in order to read the assembly for its version.
+        if (isSingleFile)
+        {
+            directoryUri = Path.Join(_tempDirectory, "EllieBotExtract_" + DateTimeOffset.Now.Ticks);
+            assemblyUri = Path.Join(directoryUri, "EllieBot.dll");
+            using var executableReader = new ExecutableReader(executableUri);
+            await executableReader.ExtractToDirectoryAsync(directoryUri, cToken);
+        }
+
+        try
+        {
+            var ellieAssembly = Assembly.LoadFile(assemblyUri);
+            var version = ellieAssembly.GetName().Version
+                ?? throw new InvalidOperationException($"Could not find version for the assembly at {assemblyUri}.");
+
+            var currentVersion = $"{version.Major}.{version.Minor}.{version.Build}";
+
+            await _appConfigManager.UpdateBotEntryAsync(Id, x => x with { Version = currentVersion }, cToken);
+
+            return currentVersion;
+        }
+        finally
+        {
+            if (isSingleFile)
+                Utilities.TryDeleteDirectory(directoryUri);
+        }
+    }
+
     [GeneratedRegex(@"^(?:\S+\-)(\S+\-\S+)\-", RegexOptions.Compiled)]
     private static partial Regex GenerateUnzipedDirRegex();
 }
\ No newline at end of file
diff --git a/EllieHub/Features/BotConfig/Views/Controls/BotConfigView.axaml.cs b/EllieHub/Features/BotConfig/Views/Controls/BotConfigView.axaml.cs
index d91e7ce..a8123cb 100644
--- a/EllieHub/Features/BotConfig/Views/Controls/BotConfigView.axaml.cs
+++ b/EllieHub/Features/BotConfig/Views/Controls/BotConfigView.axaml.cs
@@ -26,7 +26,7 @@ public partial class BotConfigView : ReactiveUserControl<BotConfigViewModel>
     /// <param name="eventArgs">The event arguments.</param>
     private void AvatarButtonHover(object? sender, PointerEventArgs eventArgs)
     {
-        if (!Utilities.TryCastTo<Button>(sender, out var button))
+        if (sender is not Button button)
             return;
 
         button.Opacity = 3.0;
@@ -40,7 +40,7 @@ public partial class BotConfigView : ReactiveUserControl<BotConfigViewModel>
     /// <param name="eventArgs">The event arguments.</param>
     private void AvatarButtonUnhover(object? sender, PointerEventArgs eventArgs)
     {
-        if (!Utilities.TryCastTo<Button>(sender, out var button))
+        if (sender is not Button button)
             return;
 
         button.Opacity = 0.0;
diff --git a/EllieHub/Features/Home/Services/AppResolver.cs b/EllieHub/Features/Home/Services/AppResolver.cs
index 994bbfc..80ae409 100644
--- a/EllieHub/Features/Home/Services/AppResolver.cs
+++ b/EllieHub/Features/Home/Services/AppResolver.cs
@@ -142,7 +142,7 @@ public sealed class AppResolver : IAppResolver
 
                 // Rename the original file from "file" to "file_old".
                 if (File.Exists(destinationUri))
-                    File.Move(destinationUri, destinationUri + OldFileSuffix);
+                    File.Move(destinationUri, destinationUri + OldFileSuffix, true);
 
                 // Move the new file to the application's directory.
                 if (Environment.OSVersion.Platform is not PlatformID.Unix)