Apple Services Engineering (ASE) is the organisation responsible for products such as Apple Music, Podcasts, TV+, tvOS, App Store, iCloud, and many others. We, at ASE Analytics and Data Engineering, are responsible for collecting, analysing and reporting on insights derived from user and device generated data from across all Apple media services. Reporting plays a crucial role in this process, enabling teams at Apple to gain valuable insights and make informed decisions about their daily activities. Reporting involves integrating data from multiple data pipelines managed by different teams, which...