diff --git a/StabilityMatrix/App.xaml.cs b/StabilityMatrix/App.xaml.cs
index 64039843..154edff6 100644
--- a/StabilityMatrix/App.xaml.cs
+++ b/StabilityMatrix/App.xaml.cs
@@ -18,7 +18,6 @@ using Microsoft.Extensions.Logging;
 using NLog;
 using NLog.Config;
 using NLog.Extensions.Logging;
-using NLog.Layouts;
 using NLog.Targets;
 using Octokit;
 using Polly;
@@ -361,9 +360,13 @@ namespace StabilityMatrix
                 };
                 var exceptionWindow = new ExceptionWindow
                 {
-                    DataContext = vm,
-                    Owner = MainWindow
+                    DataContext = vm
                 };
+
+                if (MainWindow?.IsActive ?? false)
+                {
+                    exceptionWindow.Owner = MainWindow;
+                }
                 exceptionWindow.ShowDialog();
             }
             e.Handled = true;
diff --git a/StabilityMatrix/CheckpointBrowserPage.xaml b/StabilityMatrix/CheckpointBrowserPage.xaml
index cd6513d2..3a784e6e 100644
--- a/StabilityMatrix/CheckpointBrowserPage.xaml
+++ b/StabilityMatrix/CheckpointBrowserPage.xaml
@@ -139,7 +139,7 @@
                 <ui:TextBox
                     HorizontalAlignment="Stretch"
                     Margin="8,0,0,0"
-                    PlaceholderText="Query"
+                    PlaceholderText="Search models, #tags, or @users"
                     Text="{Binding SearchQuery, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
 
                 <ui:Button
@@ -238,6 +238,15 @@
             </StackPanel>
         </StackPanel>
 
+        <TextBlock
+            Grid.Row="0"
+            Grid.RowSpan="3"
+            FontSize="20"
+            HorizontalAlignment="Center"
+            VerticalAlignment="Center"
+            Text="{Binding NoResultsText, FallbackValue=No results found}"
+            Visibility="{Binding NoResultsFound, Converter={StaticResource BoolToVisibilityConverter}}" />
+        
         <ui:ProgressRing
             Grid.Row="0"
             Grid.RowSpan="3"
diff --git a/StabilityMatrix/Converters/Json/DefaultUnknownEnumConverter.cs b/StabilityMatrix/Converters/Json/DefaultUnknownEnumConverter.cs
new file mode 100644
index 00000000..da44e3ab
--- /dev/null
+++ b/StabilityMatrix/Converters/Json/DefaultUnknownEnumConverter.cs
@@ -0,0 +1,41 @@
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using StabilityMatrix.Extensions;
+
+namespace StabilityMatrix.Converters.Json;
+
+public class DefaultUnknownEnumConverter<T> : JsonConverter<T> where T : Enum
+{
+    public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+    {
+        if (reader.TokenType != JsonTokenType.String) 
+        {
+            throw new JsonException();
+        }
+
+        var enumText = reader.GetString();
+        if (Enum.TryParse(typeof(T), enumText, true, out var result))
+        {
+            return (T) result!;
+        }
+
+        // Unknown value handling
+        if (Enum.TryParse(typeof(T), "Unknown", true, out var unknownResult)) 
+        {
+            return (T) unknownResult!;
+        }
+        
+        throw new JsonException($"Unable to parse '{enumText}' to enum '{typeof(T)}'.");
+    }
+
+    public override void Write(Utf8JsonWriter writer, T? value, JsonSerializerOptions options)
+    {
+        if (value == null)
+        {
+            writer.WriteNullValue();
+            return;
+        }
+        writer.WriteStringValue(value.GetStringValue());
+    }
+}
diff --git a/StabilityMatrix/Helper/IPrerequisiteHelper.cs b/StabilityMatrix/Helper/IPrerequisiteHelper.cs
index 1bb577ad..6dc948c9 100644
--- a/StabilityMatrix/Helper/IPrerequisiteHelper.cs
+++ b/StabilityMatrix/Helper/IPrerequisiteHelper.cs
@@ -8,10 +8,13 @@ public interface IPrerequisiteHelper
 {
     string GitBinPath { get; }
     
+    bool IsPythonInstalled { get; }
+ 
     Task InstallAllIfNecessary(IProgress<ProgressReport>? progress = null);
     Task UnpackResourcesIfNecessary(IProgress<ProgressReport>? progress = null);
     Task InstallGitIfNecessary(IProgress<ProgressReport>? progress = null);
     Task InstallVcRedistIfNecessary(IProgress<ProgressReport>? progress = null);
+    Task InstallPythonIfNecessary(IProgress<ProgressReport>? progress = null);
 
     /// <summary>
     /// Run embedded git with the given arguments.
diff --git a/StabilityMatrix/Helper/PrerequisiteHelper.cs b/StabilityMatrix/Helper/PrerequisiteHelper.cs
index f4e0a8a2..e317ad65 100644
--- a/StabilityMatrix/Helper/PrerequisiteHelper.cs
+++ b/StabilityMatrix/Helper/PrerequisiteHelper.cs
@@ -42,6 +42,8 @@ public class PrerequisiteHelper : IPrerequisiteHelper
     private string PortableGitDownloadPath => Path.Combine(HomeDir, "PortableGit.7z.exe");
     private string GitExePath => Path.Combine(PortableGitInstallDir, "bin", "git.exe");
     public string GitBinPath => Path.Combine(PortableGitInstallDir, "bin");
+    
+    public bool IsPythonInstalled => File.Exists(PythonDllPath);
 
     public PrerequisiteHelper(ILogger<PrerequisiteHelper> logger, IGitHubClient gitHubClient,
         IDownloadService downloadService, ISettingsManager settingsManager)
@@ -215,9 +217,8 @@ public class PrerequisiteHelper : IPrerequisiteHelper
         
         logger.LogInformation("Git not found at {GitExePath}, downloading...", GitExePath);
 
-        var latestRelease = await gitHubClient.Repository.Release.GetLatest("git-for-windows", "git");
-        var portableGitUrl = latestRelease.Assets
-            .First(a => a.Name.EndsWith("64-bit.7z.exe")).BrowserDownloadUrl;
+        var portableGitUrl =
+            "https://github.com/git-for-windows/git/releases/download/v2.41.0.windows.1/PortableGit-2.41.0-64-bit.7z.exe";
 
         if (!File.Exists(PortableGitDownloadPath))
         {
diff --git a/StabilityMatrix/Models/Api/CivitModelType.cs b/StabilityMatrix/Models/Api/CivitModelType.cs
index e397cf23..29c9a169 100644
--- a/StabilityMatrix/Models/Api/CivitModelType.cs
+++ b/StabilityMatrix/Models/Api/CivitModelType.cs
@@ -1,13 +1,15 @@
 using System.Diagnostics.CodeAnalysis;
 using System.Text.Json.Serialization;
+using StabilityMatrix.Converters.Json;
 using StabilityMatrix.Extensions;
 
 namespace StabilityMatrix.Models.Api;
 
-[JsonConverter(typeof(JsonStringEnumConverter))]
+[JsonConverter(typeof(DefaultUnknownEnumConverter<CivitModelType>))]
 [SuppressMessage("ReSharper", "InconsistentNaming")]
 public enum CivitModelType
 {
+    Unknown,
     [ConvertTo<SharedFolderType>(SharedFolderType.StableDiffusion)]
     Checkpoint,
     [ConvertTo<SharedFolderType>(SharedFolderType.TextualInversion)]
diff --git a/StabilityMatrix/SettingsPage.xaml b/StabilityMatrix/SettingsPage.xaml
index 005bcd17..a3505e90 100644
--- a/StabilityMatrix/SettingsPage.xaml
+++ b/StabilityMatrix/SettingsPage.xaml
@@ -133,10 +133,25 @@
                             FontWeight="Bold"
                             Margin="0,8"
                             Text="Embedded Python" />
-                        <Button
-                            Command="{Binding PythonVersionCommand}"
-                            Content="Check Version Info"
-                            Margin="8" />
+                        <StackPanel Orientation="Horizontal">
+                            <ui:Button
+                                Command="{Binding PythonVersionCommand}"
+                                Content="Check Version Info"
+                                Margin="8" />
+                            <!--  Progress for python install if needed  -->
+                            <StackPanel Orientation="Horizontal" Visibility="{Binding IsPythonInstalling, Converter={StaticResource BoolToVisibilityConverter}, FallbackValue=Collapsed}">
+                                <ui:ProgressRing
+                                    Height="24"
+                                    IsEnabled="{Binding IsPythonInstalling}"
+                                    IsIndeterminate="True"
+                                    Margin="8"
+                                    Width="24" />
+                                <TextBlock
+                                    Margin="4"
+                                    Text="Preparing Environment"
+                                    VerticalAlignment="Center" />
+                            </StackPanel>
+                        </StackPanel>
                     </StackPanel>
                 </ui:Card>
 
diff --git a/StabilityMatrix/ViewModels/CheckpointBrowserViewModel.cs b/StabilityMatrix/ViewModels/CheckpointBrowserViewModel.cs
index 56b4ef1c..5b7a0591 100644
--- a/StabilityMatrix/ViewModels/CheckpointBrowserViewModel.cs
+++ b/StabilityMatrix/ViewModels/CheckpointBrowserViewModel.cs
@@ -46,13 +46,15 @@ public partial class CheckpointBrowserViewModel : ObservableObject
     [ObservableProperty] private bool canGoToNextPage;
     [ObservableProperty] private bool canGoToPreviousPage;
     [ObservableProperty] private bool isIndeterminate;
+    [ObservableProperty] private bool noResultsFound;
+    [ObservableProperty] private string noResultsText;
     
     public IEnumerable<CivitPeriod> AllCivitPeriods => Enum.GetValues(typeof(CivitPeriod)).Cast<CivitPeriod>();
     public IEnumerable<CivitSortMode> AllSortModes => Enum.GetValues(typeof(CivitSortMode)).Cast<CivitSortMode>();
 
     public IEnumerable<CivitModelType> AllModelTypes => Enum.GetValues(typeof(CivitModelType))
         .Cast<CivitModelType>()
-        .Where(t => t != CivitModelType.AestheticGradient && t != CivitModelType.Poses)
+        .Where(t => t == CivitModelType.All || t.ConvertTo<SharedFolderType>() > 0)
         .OrderBy(t => t.ToString());
 
     public CheckpointBrowserViewModel(
@@ -100,10 +102,25 @@ public partial class CheckpointBrowserViewModel : ObservableObject
             var models = modelsResponse.Items;
             if (models is null)
             {
-                Logger.Debug("CivitAI Query {Text} returned no results (in {Elapsed:F1} s)", queryText, timer.Elapsed.TotalSeconds);
+                Logger.Debug("CivitAI Query {Text} returned no results (in {Elapsed:F1} s)",
+                    queryText, timer.Elapsed.TotalSeconds);
                 return;
             }
-            Logger.Debug("CivitAI Query {Text} returned {Results} results (in {Elapsed:F1} s)", queryText, models.Count, timer.Elapsed.TotalSeconds);
+
+            Logger.Debug("CivitAI Query {Text} returned {Results} results (in {Elapsed:F1} s)",
+                queryText, models.Count, timer.Elapsed.TotalSeconds);
+
+            var unknown = models.Where(m => m.Type == CivitModelType.Unknown).ToList();
+            if (unknown.Any())
+            {
+                var names = unknown.Select(m => m.Name).ToList();
+                Logger.Warn("Excluded {Unknown} unknown model types: {Models}", unknown.Count,
+                    names);
+            }
+
+            // Filter out unknown model types
+            models = models.Where(m => m.Type.ConvertTo<SharedFolderType>() > 0).ToList();
+
             // Database update calls will invoke `OnModelsUpdated`
             // Add to database
             await liteDbContext.UpsertCivitModelAsync(models);
@@ -116,7 +133,7 @@ public partial class CheckpointBrowserViewModel : ObservableObject
                 Items = models,
                 Metadata = modelsResponse.Metadata
             });
-            
+
             if (cacheNew)
             {
                 Logger.Debug("New cache entry, updating model cards");
@@ -133,6 +150,11 @@ public partial class CheckpointBrowserViewModel : ObservableObject
                 "CivitAI can't be reached right now").SafeFireAndForget();
             Logger.Log(LogLevel.Error, e);
         }
+        finally
+        {
+            ShowMainLoadingSpinner = false;
+            UpdateResultsText();
+        }
     }
     
     /// <summary>
@@ -160,23 +182,43 @@ public partial class CheckpointBrowserViewModel : ObservableObject
         HasSearched = true;
     }
 
+    private string previousSearchQuery = string.Empty;
+
     [RelayCommand]
     private async Task SearchModels()
     {
         if (string.IsNullOrWhiteSpace(SearchQuery)) return;
-        
         var timer = Stopwatch.StartNew();
-
+        
+        if (SearchQuery != previousSearchQuery)
+        {
+            // Reset page number
+            CurrentPageNumber = 1;
+            previousSearchQuery = SearchQuery;
+        }
+        
         // Build request
         var modelRequest = new CivitModelsRequest
         {
-            Query = SearchQuery,
             Limit = MaxModelsPerPage,
             Nsfw = "true", // Handled by local view filter
             Sort = SortMode,
             Period = SelectedPeriod,
             Page = CurrentPageNumber,
         };
+
+        if (SearchQuery.StartsWith("#"))
+        {
+            modelRequest.Tag = SearchQuery[1..];
+        }
+        else if (SearchQuery.StartsWith("@"))
+        {
+            modelRequest.Username = SearchQuery[1..];
+        }
+        else
+        {
+            modelRequest.Query = SearchQuery;
+        }
         
         if (SelectedModelType != CivitModelType.All)
         {
@@ -189,7 +231,7 @@ public partial class CheckpointBrowserViewModel : ObservableObject
             .FindByIdAsync(ObjectHash.GetMd5Guid(modelRequest));
         
         // If cached, update model cards
-        if (cachedQuery?.Items is not null && cachedQuery.Items.Any())
+        if (cachedQuery is not null)
         {
             var elapsed = timer.Elapsed;
             Logger.Debug("Using cached query for {Text} [{RequestHash}] (in {Elapsed:F1} s)", 
@@ -199,14 +241,13 @@ public partial class CheckpointBrowserViewModel : ObservableObject
             // Start remote query (background mode)
             // Skip when last query was less than 2 min ago
             var timeSinceCache = DateTimeOffset.UtcNow - cachedQuery.InsertedAt;
-            if (timeSinceCache?.TotalMinutes < 2)
+            if (timeSinceCache?.TotalMinutes >= 2)
             {
-                Logger.Debug("Cached query was less than 2 minutes ago ({Seconds:F0} s), skipping remote query",
+                CivitModelQuery(modelRequest).SafeFireAndForget();
+                Logger.Debug(
+                    "Cached query was more than 2 minutes ago ({Seconds:F0} s), updating cache with remote query",
                     timeSinceCache.Value.TotalSeconds);
-                return;
             }
-            
-            CivitModelQuery(modelRequest).SafeFireAndForget();
         }
         else
         {
@@ -214,6 +255,8 @@ public partial class CheckpointBrowserViewModel : ObservableObject
             ShowMainLoadingSpinner = true;
             await CivitModelQuery(modelRequest);
         }
+        
+        UpdateResultsText();
     }
 
     [RelayCommand]
@@ -251,6 +294,11 @@ public partial class CheckpointBrowserViewModel : ObservableObject
     {
         settingsManager.SetModelBrowserNsfwEnabled(value);
         ModelCardsView?.Refresh();
+        
+        if (!HasSearched) 
+            return;
+        
+        UpdateResultsText();
     }
 
     partial void OnSelectedPeriodChanged(CivitPeriod oldValue, CivitPeriod newValue)
@@ -281,4 +329,12 @@ public partial class CheckpointBrowserViewModel : ObservableObject
         // execute command instead of calling method directly so that the IsRunning property gets updated
         await SearchModelsCommand.ExecuteAsync(null);
     }
+
+    private void UpdateResultsText()
+    {
+        NoResultsFound = ModelCardsView?.IsEmpty ?? true;
+        NoResultsText = ModelCards?.Count > 0
+            ? $"{ModelCards.Count} results hidden by filters"
+            : "No results found";
+    }
 }
diff --git a/StabilityMatrix/ViewModels/SettingsViewModel.cs b/StabilityMatrix/ViewModels/SettingsViewModel.cs
index 6dd06d5c..03b22c8d 100644
--- a/StabilityMatrix/ViewModels/SettingsViewModel.cs
+++ b/StabilityMatrix/ViewModels/SettingsViewModel.cs
@@ -41,6 +41,7 @@ public partial class SettingsViewModel : ObservableObject
     private readonly IPyRunner pyRunner;
     private readonly ISnackbarService snackbarService;
     private readonly ILiteDbContext liteDbContext;
+    private readonly IPrerequisiteHelper prerequisiteHelper;
     private static string LicensesPath => "pack://application:,,,/Assets/licenses.json";
     public TextToFlowDocumentConverter? TextToFlowDocumentConverter { get; set; }
 
@@ -62,6 +63,8 @@ public partial class SettingsViewModel : ObservableObject
     [ObservableProperty] private bool isFileSearchFlyoutOpen;
     [ObservableProperty] private double fileSearchProgress;
 
+    [ObservableProperty] private bool isPythonInstalling;
+
     [ObservableProperty] private string? webApiHost;
     [ObservableProperty] private string? webApiPort;
     [ObservableProperty] private string? webApiActivePackageHost;
@@ -94,7 +97,8 @@ public partial class SettingsViewModel : ObservableObject
         ISnackbarService snackbarService, 
         ILogger<SettingsViewModel> logger, 
         IPackageFactory packageFactory,
-        ILiteDbContext liteDbContext)
+        ILiteDbContext liteDbContext,
+        IPrerequisiteHelper prerequisiteHelper)
     {
         this.logger = logger;
         this.settingsManager = settingsManager;
@@ -104,6 +108,7 @@ public partial class SettingsViewModel : ObservableObject
         this.a3WebApiManager = a3WebApiManager;
         this.pyRunner = pyRunner;
         this.liteDbContext = liteDbContext;
+        this.prerequisiteHelper = prerequisiteHelper;
         SelectedTheme = settingsManager.Settings.Theme ?? "Dark";
         WindowBackdropType = settingsManager.Settings.WindowBackdropType ?? WindowBackdropType.Mica;
     }
@@ -169,6 +174,16 @@ public partial class SettingsViewModel : ObservableObject
 
     public AsyncRelayCommand PythonVersionCommand => new(async () =>
     {
+        // Ensure python installed
+        if (!prerequisiteHelper.IsPythonInstalled)
+        {
+            IsPythonInstalling = true;
+            // Need 7z as well for site packages repack
+            await prerequisiteHelper.UnpackResourcesIfNecessary();
+            await prerequisiteHelper.InstallPythonIfNecessary();
+            IsPythonInstalling = false;
+        }
+
         // Get python version
         await pyRunner.Initialize();
         var result = await pyRunner.GetVersionInfo();