From e24fc6bcc52440681cb8b3362fc9a090816a6520 Mon Sep 17 00:00:00 2001
From: JerrettDavis <mxjerrett@gmail.com>
Date: Tue, 19 May 2026 19:31:56 -0500
Subject: [PATCH] fix: isolate POS DI singleton from demo counters

---
 .../PatternKitExampleServiceCollectionExtensions.cs   | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/PatternKit.Examples/DependencyInjection/PatternKitExampleServiceCollectionExtensions.cs b/src/PatternKit.Examples/DependencyInjection/PatternKitExampleServiceCollectionExtensions.cs
index 7690629f..f5549ff9 100644
--- a/src/PatternKit.Examples/DependencyInjection/PatternKitExampleServiceCollectionExtensions.cs
+++ b/src/PatternKit.Examples/DependencyInjection/PatternKitExampleServiceCollectionExtensions.cs
@@ -267,7 +267,16 @@ public static IServiceCollection AddPaymentProcessorDecoratorExample(this IServi
 
     public static IServiceCollection AddPosAppStateSingletonExample(this IServiceCollection services)
     {
-        services.AddSingleton(_ => PosAppStateDemo.BuildLazy());
+        services.AddSingleton(_ => Singleton<PosAppState>
+            .Create(static () => new PosAppState
+            {
+                Config = StoreConfig.Load(),
+                Pricing = new PricingCache(),
+                Devices = new DeviceRegistry()
+            })
+            .Init(static state => state.Pricing.Prewarm(["SKU-1", "SKU-2", "SKU-3"]))
+            .Init(static state => state.Devices.ConnectAll())
+            .Build());
         services.AddSingleton<PosAppStateSingletonExample>(sp => new(sp.GetRequiredService<Singleton<PosAppState>>()));
         return services.RegisterExample<PosAppStateSingletonExample>("POS App State Singleton", ExampleIntegrationSurface.LibraryOnly | ExampleIntegrationSurface.DependencyInjection);
     }