Persistence for queue, history and last played

Extensions/CMTime+DefaultTimescale.swift

@@ -0,0 +1,10 @@
+import CoreMedia
+import Foundation
+
+extension CMTime {
+    static let defaultTimescale: CMTimeScale = 1_000_000
+
+    static func secondsInDefaultTimescale(_ seconds: TimeInterval) -> CMTime {
+        CMTime(seconds: seconds, preferredTimescale: CMTime.defaultTimescale)
+    }
+}