Looking at previous year's submissions and prior to that (2019 submissions), I could notice the change in the format of playgroundbook content in. XCode, such as in chapter pages it was Contents.swift and Manifest.plist (for 2019 submissions) with Sources and PrivateResources directories for code base and assets, whereas for 2020 submissions it was main.swift ,LiveView.swift for chapter pages and UserModules directory for the codebase. Is there any compulsion regarding which of the above two structures I should use to build my playgroundbook or am I free to use any of it ? Thanks.
