More work

Hyperbar.Windows/SecondaryViewModel.cs

@@ -0,0 +1,17 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace Hyperbar.Widget;
+
+public partial class SecondaryViewModel(ITemplateFactory templateFactory,
+    IServiceFactory serviceFactory,
+    IMediator mediator,
+    IDisposer disposer,
+    int index) :
+    ObservableCollectionViewModel<IDisposable>(serviceFactory, mediator, disposer),
+    ITemplatedViewModel
+{
+    [ObservableProperty]
+    private int index = index;
+
+    public ITemplateFactory TemplateFactory => templateFactory;
+}