diff --git a/ViewModels/Sources/ViewModels/AddIdentityViewModel.swift b/ViewModels/Sources/ViewModels/AddIdentityViewModel.swift
index 48aa697..939cf08 100644
--- a/ViewModels/Sources/ViewModels/AddIdentityViewModel.swift
+++ b/ViewModels/Sources/ViewModels/AddIdentityViewModel.swift
@@ -27,7 +27,7 @@ public final class AddIdentityViewModel: ObservableObject {
         self.instanceURLService = instanceURLService
 
         let url = $urlFieldText
-            .debounce(for: 0.5, scheduler: DispatchQueue.global())
+            .debounce(for: .seconds(Self.textFieldDebounceInterval), scheduler: DispatchQueue.global())
             .removeDuplicates()
             .flatMap {
                 instanceURLService.url(text: $0).publisher
@@ -86,6 +86,7 @@ public extension AddIdentityViewModel {
 }
 
 private extension AddIdentityViewModel {
+    private static let textFieldDebounceInterval: TimeInterval = 0.5
     func addIdentity(kind: AllIdentitiesService.IdentityCreation) {
         instanceURLService.url(text: urlFieldText).publisher
             .map { ($0, kind) }
diff --git a/ViewModels/Sources/ViewModels/CollectionItemsViewModel.swift b/ViewModels/Sources/ViewModels/CollectionItemsViewModel.swift
index 0efe066..f90e814 100644
--- a/ViewModels/Sources/ViewModels/CollectionItemsViewModel.swift
+++ b/ViewModels/Sources/ViewModels/CollectionItemsViewModel.swift
@@ -49,7 +49,7 @@ public final class CollectionItemsViewModel: ObservableObject {
                 identification.appPreferences.positionBehavior(markerTimeline: markerTimeline) == .rememberPosition
             lastReadId.compactMap { $0 }
                 .removeDuplicates()
-                .debounce(for: 0.5, scheduler: DispatchQueue.global())
+                .debounce(for: .seconds(Self.lastReadIdDebounceInterval), scheduler: DispatchQueue.global())
                 .flatMap { identification.service.setLastReadId($0, forMarker: markerTimeline) }
                 .sink { _ in } receiveValue: { _ in }
                 .store(in: &cancellables)
@@ -283,6 +283,8 @@ extension CollectionItemsViewModel: CollectionViewModel {
 }
 
 private extension CollectionItemsViewModel {
+    private static let lastReadIdDebounceInterval: TimeInterval = 0.5
+
     var lastUpdateWasContextParentOnly: Bool {
         collectionService is ContextService && lastUpdate.items.map(\.count) == [0, 1, 0]
     }