diff --git a/Development Assets/DevelopmentModels.swift b/Development Assets/DevelopmentModels.swift
index 5193a57..b4bec4e 100644
--- a/Development Assets/DevelopmentModels.swift	
+++ b/Development Assets/DevelopmentModels.swift	
@@ -86,19 +86,17 @@ extension AddIdentityViewModel {
     static let development = RootViewModel.development.addIdentityViewModel()
 }
 
-extension MainNavigationViewModel {
-    static let development = RootViewModel.development.mainNavigationViewModel!
+extension TabNavigationViewModel {
+    static let development = RootViewModel.development.tabNavigationViewModel!
 }
 
-#if os(iOS)
 extension SecondaryNavigationViewModel {
-    static let development = MainNavigationViewModel.development.secondaryNavigationViewModel()
+    static let development = TabNavigationViewModel.development.secondaryNavigationViewModel()
 }
 
 extension IdentitiesViewModel {
     static let development = IdentitiesViewModel(identityService: .development)
 }
-#endif
 
 extension PreferencesViewModel {
     static let development = PreferencesViewModel(identityService: .development)
diff --git a/Development Assets/Mastodon API Stubs/TimelinesEndpoint+Stubbing.swift b/Development Assets/Mastodon API Stubs/TimelinesEndpoint+Stubbing.swift
index 66fad3b..f633e61 100644
--- a/Development Assets/Mastodon API Stubs/TimelinesEndpoint+Stubbing.swift	
+++ b/Development Assets/Mastodon API Stubs/TimelinesEndpoint+Stubbing.swift	
@@ -1,11 +1,7 @@
 // Copyright © 2020 Metabolist. All rights reserved.
 
 import Foundation
-#if canImport(UIKit)
 import UIKit
-#elseif canImport(AppKit)
-import AppKit
-#endif
 
 extension TimelinesEndpoint: Stubbing {
     func data(url: URL) -> Data? {
diff --git a/Extensions/NSMutableAttributedString+Extensions.swift b/Extensions/NSMutableAttributedString+Extensions.swift
index ae79f47..1800a96 100644
--- a/Extensions/NSMutableAttributedString+Extensions.swift
+++ b/Extensions/NSMutableAttributedString+Extensions.swift
@@ -1,10 +1,6 @@
 // Copyright © 2020 Metabolist. All rights reserved.
 
-#if canImport(UIKit)
 import UIKit
-#elseif canImport(AppKit)
-import AppKit
-#endif
 import Kingfisher
 
 extension NSMutableAttributedString {
diff --git a/System/AppDelegate.swift b/System/AppDelegate.swift
index 68fe88d..e61674d 100644
--- a/System/AppDelegate.swift
+++ b/System/AppDelegate.swift
@@ -1,19 +1,10 @@
 // Copyright © 2020 Metabolist. All rights reserved.
 
-#if os(macOS)
-import AppKit
-typealias AppDelegateType = NSApplicationDelegate
-typealias ApplicationType = NSApplication
-#else
 import UIKit
-typealias AppDelegateType = UIApplicationDelegate
-typealias ApplicationType = UIApplication
-#endif
-
 import Combine
 
 class AppDelegate: NSObject {
-    @Published private var application: ApplicationType?
+    @Published private var application: UIApplication?
     private let remoteNotificationDeviceTokens = PassthroughSubject<Data, Error>()
 }
 
@@ -30,12 +21,7 @@ extension AppDelegate {
     }
 }
 
-extension AppDelegate: AppDelegateType {
-    #if os(macOS)
-    func applicationDidFinishLaunching(_ notification: Notification) {
-        application = notification.object as? ApplicationType
-    }
-    #else
+extension AppDelegate: UIApplicationDelegate {
     func application(
         _ application: UIApplication,
         didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
@@ -43,15 +29,13 @@ extension AppDelegate: AppDelegateType {
 
         return true
     }
-    #endif
 
-    func application(_ application: ApplicationType,
+    func application(_ application: UIApplication,
                      didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
-        // this doesn't get called on macOS, need to figure out why
         remoteNotificationDeviceTokens.send(deviceToken)
     }
 
-    func application(_ application: ApplicationType,
+    func application(_ application: UIApplication,
                      didFailToRegisterForRemoteNotificationsWithError error: Error) {
         remoteNotificationDeviceTokens.send(completion: .failure(error))
     }
diff --git a/System/MetatextApp.swift b/System/MetatextApp.swift
index aef7394..d94c4e0 100644
--- a/System/MetatextApp.swift
+++ b/System/MetatextApp.swift
@@ -5,11 +5,7 @@ import SwiftUI
 @main
 struct MetatextApp: App {
     // swiftlint:disable weak_delegate
-    #if os(macOS)
-    @NSApplicationDelegateAdaptor(AppDelegate.self) private var appDelegate
-    #else
     @UIApplicationDelegateAdaptor(AppDelegate.self) private var appDelegate
-    #endif
     // swiftlint:enable weak_delegate
 
     private let allIdentitiesService: AllIdentitiesService = {
diff --git a/Tests/View Models/RootViewModelTests.swift b/Tests/View Models/RootViewModelTests.swift
index 0ff3989..c6ad723 100644
--- a/Tests/View Models/RootViewModelTests.swift	
+++ b/Tests/View Models/RootViewModelTests.swift	
@@ -14,7 +14,7 @@ class RootViewModelTests: XCTestCase {
                                     identityDatabase: .fresh(),
                                     environment: .development),
                                 userNotificationService: UserNotificationService())
-        let recorder = sut.$mainNavigationViewModel.record()
+        let recorder = sut.$tabNavigationViewModel.record()
 
         XCTAssertNil(try wait(for: recorder.next(), timeout: 1))
 
diff --git a/View Models/RootViewModel.swift b/View Models/RootViewModel.swift
index 2b47a03..22780e3 100644
--- a/View Models/RootViewModel.swift	
+++ b/View Models/RootViewModel.swift	
@@ -4,7 +4,7 @@ import Foundation
 import Combine
 
 class RootViewModel: ObservableObject {
-    @Published private(set) var mainNavigationViewModel: MainNavigationViewModel?
+    @Published private(set) var tabNavigationViewModel: TabNavigationViewModel?
     @Published private var mostRecentlyUsedIdentityID: UUID?
 
     // swiftlint:disable weak_delegate
@@ -38,7 +38,7 @@ class RootViewModel: ObservableObject {
 extension RootViewModel {
     func newIdentitySelected(id: UUID?) {
         guard let id = id else {
-            mainNavigationViewModel = nil
+            tabNavigationViewModel = nil
 
             return
         }
@@ -70,7 +70,7 @@ extension RootViewModel {
             .sink { _ in } receiveValue: { _ in }
             .store(in: &cancellables)
 
-        mainNavigationViewModel = MainNavigationViewModel(identityService: identityService)
+        tabNavigationViewModel = TabNavigationViewModel(identityService: identityService)
     }
 
     func deleteIdentity(_ identity: Identity) {
diff --git a/Views/AddIdentityView.swift b/Views/AddIdentityView.swift
index 836ccd5..dfcce47 100644
--- a/Views/AddIdentityView.swift
+++ b/Views/AddIdentityView.swift
@@ -8,15 +8,10 @@ struct AddIdentityView: View {
 
     var body: some View {
         Form {
-            #if os(macOS)
-            Spacer()
-            urlTextField
-            #else
             urlTextField
                 .autocapitalization(.none)
                 .disableAutocorrection(true)
                 .keyboardType(.URL)
-            #endif
             Group {
                 if viewModel.loading {
                     ProgressView()
@@ -28,11 +23,7 @@ struct AddIdentityView: View {
             .frame(maxWidth: .infinity, alignment: .center)
             Button("add-identity.browse-anonymously", action: viewModel.browseAnonymouslyTapped)
                 .frame(maxWidth: .infinity, alignment: .center)
-            #if os(macOS)
-            Spacer()
-            #endif
         }
-        .paddingIfMac()
         .alertItem($viewModel.alertItem)
         .onReceive(viewModel.addedIdentityID) { id in
             withAnimation {
@@ -48,16 +39,6 @@ extension AddIdentityView {
     }
 }
 
-private extension View {
-    func paddingIfMac() -> some View {
-        #if os(macOS)
-        return padding()
-        #else
-        return self
-        #endif
-    }
-}
-
 #if DEBUG
 struct AddAccountView_Previews: PreviewProvider {
     static var previews: some View {
diff --git a/Views/RootView.swift b/Views/RootView.swift
index 606f8dc..9719a92 100644
--- a/Views/RootView.swift
+++ b/Views/RootView.swift
@@ -2,18 +2,12 @@
 
 import SwiftUI
 
-#if os(macOS)
-typealias MainNavigationViewModel = SidebarNavigationViewModel
-#else
-typealias MainNavigationViewModel = TabNavigationViewModel
-#endif
-
 struct RootView: View {
     @StateObject var viewModel: RootViewModel
 
     var body: some View {
-        if let mainNavigationViewModel = viewModel.mainNavigationViewModel {
-            Self.mainNavigation(mainNavigationViewModel: mainNavigationViewModel)
+        if let tabNavigationViewModel = viewModel.tabNavigationViewModel {
+            TabNavigationView(viewModel: tabNavigationViewModel)
                 .id(UUID())
                 .environmentObject(viewModel)
                 .transition(.opacity)
@@ -25,18 +19,6 @@ struct RootView: View {
     }
 }
 
-private extension RootView {
-    @ViewBuilder
-    private static func mainNavigation(mainNavigationViewModel: MainNavigationViewModel) -> some View {
-        #if os(macOS)
-        SidebarNavigationView(viewModel: mainNavigationViewModel)
-            .frame(minWidth: 900, maxWidth: .infinity, minHeight: 500, maxHeight: .infinity)
-        #else
-        TabNavigationView(viewModel: mainNavigationViewModel)
-        #endif
-    }
-}
-
 #if DEBUG
 struct ContentView_Previews: PreviewProvider {
     static var previews: some View {