Remember the last set playback speed

HackerTube/Domain/UserDefaultsKey.swift

@@ -0,0 +1,12 @@
+//
+//  UserDefaultsKey.swift
+//  HackerTube
+//
+//  Created by Mathijs Bernson on 11/08/2025.
+//
+
+import Foundation
+
+enum UserDefaultsKey: String {
+    case playbackRate = "playbackRate"
+}

HackerTube/Features/Talk/TalkPlayerViewModel.swift

@@ -22,6 +22,8 @@ final class TalkPlayerViewModel {
         subsystem: Bundle.main.bundleIdentifier!, category: "TalkPlayerViewModel")
 
     func prepareForPlayback(recording: Recording, talk: Talk) async {
+        player.defaultRate = UserDefaults.standard.float(forKey: UserDefaultsKey.playbackRate.rawValue)
+
         let playerItem = AVPlayerItem(url: recording.recordingURL)
         playerItem.externalMetadata = factory.createMetadataItems(for: recording, talk: talk)
 

HackerTube/Features/VideoPlayer/VideoPlayerView.swift

@@ -58,6 +58,18 @@ class VideoPlayerCoordinator: NSObject, AVPlayerViewControllerDelegate {
 }
 
 class VideoPlayerViewController: AVPlayerViewController {
+    private var selectedSpeedObserver: NSKeyValueObservation?
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        selectedSpeedObserver = self.observe(\.selectedSpeed, options: [.new]) { controller, change in
+            if let selectedSpeed = change.newValue.flatMap({ $0 }) {
+                UserDefaults.standard.set(selectedSpeed.rate, forKey: UserDefaultsKey.playbackRate.rawValue)
+            }
+        }
+    }
+
     override func viewDidAppear(_ animated: Bool) {
         super.viewDidAppear(animated)
 

HackerTube/HackerTubeApp.swift

@@ -11,6 +11,8 @@ import CCCApi
 
 @main
 struct HackerTubeApp: App {
+    @UIApplicationDelegateAdaptor var appDelegate: HackerTubeAppDelegate
+
     var body: some Scene {
         WindowGroup {
             ContentView()

HackerTube/HackerTubeAppDelegate.swift

@@ -0,0 +1,21 @@
+//
+//  HackerTubeAppDelegate.swift
+//  HackerTube
+//
+//  Created by Mathijs Bernson on 11/08/2025.
+//
+
+import UIKit
+
+class HackerTubeAppDelegate: NSObject, UIApplicationDelegate {
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
+        registerDefaultSettings()
+        return true
+    }
+
+    private func registerDefaultSettings() {
+        UserDefaults.standard.register(defaults: [
+            UserDefaultsKey.playbackRate.rawValue : 1.0 as Float,
+        ])
+    }
+}