During October 2025, Paidion contributed to the firebase/quickstart-ios repository by enhancing notification presentation handling across iOS versions. They unified notification logic in both Swift and Objective-C, ensuring consistent user experience for iOS 14 and above with .list and .banner options, while maintaining legacy .alert and .sound support for older versions. Paidion also improved codebase hygiene by removing trailing whitespace in AppDelegate.swift, focusing on readability without altering functionality. Their work addressed deprecated UNNotificationPresentationOptions usage and synchronized changes across Swift and Objective-C files, demonstrating a solid grasp of mobile and iOS development with attention to cross-language consistency and maintainability.