composeApp/src/androidMain/kotlin/su/reya/coop/screens/HomeScreen.kt

@@ -110,7 +110,9 @@ fun HomeScreen(
         ?: remember { mutableStateOf(null) }
 
     LaunchedEffect(Unit) {
-        viewModel.getChatRooms()
+        if (qrResult == null) {
+            viewModel.getChatRooms()
+        }
     }
 
     LaunchedEffect(qrResult) {

shared/src/commonMain/kotlin/su/reya/coop/NostrViewModel.kt

@@ -436,7 +436,13 @@ class NostrViewModel(
 
     fun getChatRooms() {
         viewModelScope.launch {
-            _chatRooms.value = nostr.getChatRooms() ?: emptySet()
+            val rooms = nostr.getChatRooms() ?: emptySet()
+            _chatRooms.update { currentRooms ->
+                val virtualRooms = currentRooms.filter { local ->
+                    rooms.none { db -> db.id == local.id }
+                }
+                rooms + virtualRooms
+            }
         }
     }