diff --git a/src/Recyclarr.Gui/Pages/CustomFormatPage.razor b/src/Recyclarr.Gui/Pages/CustomFormatPage.razor
new file mode 100644
index 00000000..f911deac
--- /dev/null
+++ b/src/Recyclarr.Gui/Pages/CustomFormatPage.razor
@@ -0,0 +1,24 @@
+@page "/custom-format"
+@inherits ReactiveInjectableComponentBase<CustomFormatViewModel>
+
+@if (ViewModel is null)
+{
+    return;
+}
+
+<MudPaper>
+    <CustomFormatGroup ViewModel="@ViewModel.Groups[0]" />
+</MudPaper>
+
+@code {
+
+    protected override async Task OnInitializedAsync()
+    {
+        await base.OnInitializedAsync();
+        if (ViewModel != null)
+        {
+            await ViewModel.OnInit.Execute();
+        }
+    }
+
+}
diff --git a/src/Recyclarr.Gui/Shared/CustomFormatGroup.razor b/src/Recyclarr.Gui/Shared/CustomFormatGroup.razor
new file mode 100644
index 00000000..c1a95198
--- /dev/null
+++ b/src/Recyclarr.Gui/Shared/CustomFormatGroup.razor
@@ -0,0 +1,20 @@
+@inherits ReactiveComponentBase<CustomFormatGroupViewModel>
+
+@if (ViewModel is null)
+{
+    return;
+}
+
+<MudPaper>
+    <h1>@ViewModel.GroupName</h1>
+
+    @foreach (var cf in ViewModel.CustomFormats)
+    {
+        <h2>@cf.Name</h2>
+    }
+</MudPaper>
+
+
+@code {
+
+}
diff --git a/src/Recyclarr.Gui/ViewModels/CustomFormatViewModel.cs b/src/Recyclarr.Gui/ViewModels/CustomFormatViewModel.cs
index eee7cd18..a54b71cd 100644
--- a/src/Recyclarr.Gui/ViewModels/CustomFormatViewModel.cs
+++ b/src/Recyclarr.Gui/ViewModels/CustomFormatViewModel.cs
@@ -1,21 +1,41 @@
+using System.Reactive;
+using System.Reactive.Linq;
 using ReactiveUI;
 using TrashLib.Radarr.CustomFormat.Models;
+using TrashLib.Radarr.CustomFormat.Processors;
 
 namespace Recyclarr.Gui.ViewModels;
 
 public class CustomFormatGroupViewModel : ReactiveObject
 {
-    public string GroupName { get; set; }
-    public ICollection<CustomFormatGroupItem> CustomFormats { get; set; }
+    public string GroupName { get; }
+    public ICollection<CustomFormatData> CustomFormats { get; }
 
-    public CustomFormatGroupViewModel()
+    public CustomFormatGroupViewModel(string groupName, ICollection<CustomFormatData> customFormats)
     {
+        GroupName = groupName;
+        CustomFormats = customFormats;
     }
 }
 
 public class CustomFormatViewModel : ReactiveObject
 {
-    public CustomFormatViewModel()
+    private readonly ICustomFormatLookup _cfLookup;
+    private readonly List<CustomFormatGroupViewModel> _groups = new();
+
+    public List<CustomFormatGroupViewModel> Groups => _groups;
+    public ReactiveCommand<Unit, Unit> OnInit;
+
+    public CustomFormatViewModel(ICustomFormatLookup cfLookup)
     {
+        _cfLookup = cfLookup;
+
+        OnInit = ReactiveCommand.Create(() =>
+        {
+            foreach (var (groupName, cfs) in _cfLookup.MapAllCustomFormats())
+            {
+                
+            }
+        });
     }
 }
diff --git a/src/Recyclarr.Gui/_Imports.razor b/src/Recyclarr.Gui/_Imports.razor
index 4914d1a5..fe545e82 100644
--- a/src/Recyclarr.Gui/_Imports.razor
+++ b/src/Recyclarr.Gui/_Imports.razor
@@ -9,3 +9,6 @@
 @using MudBlazor
 @using Recyclarr.Gui
 @using Recyclarr.Gui.Shared
+@using Recyclarr.Gui.ViewModels
+@using ReactiveUI.Blazor
+@using System.Reactive.Linq
diff --git a/src/TrashLib/Radarr/CustomFormat/Guide/IRadarrGuideService.cs b/src/TrashLib/Radarr/CustomFormat/Guide/IRadarrGuideService.cs
index 9f4d4896..91dbd885 100644
--- a/src/TrashLib/Radarr/CustomFormat/Guide/IRadarrGuideService.cs
+++ b/src/TrashLib/Radarr/CustomFormat/Guide/IRadarrGuideService.cs
@@ -4,5 +4,5 @@ namespace TrashLib.Radarr.CustomFormat.Guide;
 
 public interface IRadarrGuideService
 {
-    ICollection<CustomFormatData> GetCustomFormatData();
+    IObservable<CustomFormatData> GetCustomFormatData();
 }
diff --git a/src/TrashLib/Radarr/CustomFormat/Guide/LocalRepoCustomFormatJsonParser.cs b/src/TrashLib/Radarr/CustomFormat/Guide/LocalRepoCustomFormatJsonParser.cs
index cb7c2916..407aa671 100644
--- a/src/TrashLib/Radarr/CustomFormat/Guide/LocalRepoCustomFormatJsonParser.cs
+++ b/src/TrashLib/Radarr/CustomFormat/Guide/LocalRepoCustomFormatJsonParser.cs
@@ -23,7 +23,7 @@ public class LocalRepoCustomFormatJsonParser : IRadarrGuideService
         _fs = fs;
     }
 
-    public ICollection<CustomFormatData> GetCustomFormatData()
+    public IObservable<CustomFormatData> GetCustomFormatData()
     {
         var jsonDir = _paths.RepoDirectory
             .SubDirectory("docs")
@@ -33,9 +33,7 @@ public class LocalRepoCustomFormatJsonParser : IRadarrGuideService
         return jsonDir.EnumerateFiles("*.json").ToObservable()
             .Select(x => Observable.Defer(() => LoadJsonFromFile(x)))
             .Merge(8)
-            .NotNull()
-            .ToEnumerable()
-            .ToList();
+            .NotNull();
     }
 
     private IObservable<CustomFormatData?> LoadJsonFromFile(IFileInfo file)
diff --git a/src/TrashLib/Radarr/CustomFormat/Processors/CustomFormatLookup.cs b/src/TrashLib/Radarr/CustomFormat/Processors/CustomFormatLookup.cs
index de957e8c..e8647aff 100644
--- a/src/TrashLib/Radarr/CustomFormat/Processors/CustomFormatLookup.cs
+++ b/src/TrashLib/Radarr/CustomFormat/Processors/CustomFormatLookup.cs
@@ -1,10 +1,12 @@
+using System.Collections.ObjectModel;
+using System.Reactive.Linq;
 using Common.Extensions;
 using TrashLib.Radarr.CustomFormat.Guide;
 using TrashLib.Radarr.CustomFormat.Models;
 
 namespace TrashLib.Radarr.CustomFormat.Processors;
 
-public class CustomFormatLookup
+public class CustomFormatLookup : ICustomFormatLookup
 {
     private readonly ICustomFormatGroupParser _parser;
     private readonly IRadarrGuideService _guide;
@@ -22,8 +24,17 @@ public class CustomFormatLookup
                guideCfs.FirstOrDefault(x => x.Name.EqualsIgnoreCase(groupItem.Name));
     }
 
+    private async Task<IDictionary<string, ReadOnlyCollection<CustomFormatGroupItem>>> ParseGroupsAsync()
+    {
+    }
+
     public Dictionary<string, List<CustomFormatData>> MapAllCustomFormats()
     {
+        Observable.Defer(() => _parser.Parse().ToObservable())
+            .ToDictionary(
+                x => x.Key,
+                x => x.Value.Select(y => MatchDataWithCellEntry(guideCfs, y)).NotNull().ToList());
+
         var guideCfs = _guide.GetCustomFormatData();
         var groups = _parser.Parse();
 
diff --git a/src/TrashLib/Radarr/CustomFormat/Processors/ICustomFormatLookup.cs b/src/TrashLib/Radarr/CustomFormat/Processors/ICustomFormatLookup.cs
new file mode 100644
index 00000000..3ae7c70f
--- /dev/null
+++ b/src/TrashLib/Radarr/CustomFormat/Processors/ICustomFormatLookup.cs
@@ -0,0 +1,8 @@
+using TrashLib.Radarr.CustomFormat.Models;
+
+namespace TrashLib.Radarr.CustomFormat.Processors;
+
+public interface ICustomFormatLookup
+{
+    Dictionary<string, List<CustomFormatData>> MapAllCustomFormats();
+}