diff --git a/TimetableDesigner.Backend.Events/EventQueue.cs b/TimetableDesigner.Backend.Events/EventQueue.cs
index 27d30f4..062f6ba 100644
--- a/TimetableDesigner.Backend.Events/EventQueue.cs
+++ b/TimetableDesigner.Backend.Events/EventQueue.cs
@@ -2,7 +2,10 @@
 
 namespace TimetableDesigner.Backend.Events;
 
-public abstract class EventQueue
+public abstract class EventQueue<TSelf> where TSelf : EventQueue<TSelf>
 {
-    public abstract void Setup(IServiceCollection services);
+    public abstract void Setup<TBuilder>(IServiceCollection services, TBuilder configuration)
+        where TBuilder : EventQueueBuilder<TSelf>;
+    
+    public abstract void Setup(IServiceCollection services, string connectionString);
 }
diff --git a/TimetableDesigner.Backend.Events/EventQueueBuilder.cs b/TimetableDesigner.Backend.Events/EventQueueBuilder.cs
new file mode 100644
index 0000000..a854ef0
--- /dev/null
+++ b/TimetableDesigner.Backend.Events/EventQueueBuilder.cs
@@ -0,0 +1,3 @@
+namespace TimetableDesigner.Backend.Events;
+
+public abstract class EventQueueBuilder<TQueue> where TQueue : EventQueue<TQueue>;
\ No newline at end of file