Hey I started working on an idea for the swift student challenge but I created a xcode project instead of a playground, is this okay or does it have to be a playground? Thank you !
XCode Project for Student Project
I believe you are only allowed to submit App Playgrounds (.swiftpm) files as it is described on the eligibility page. That was the case for last year's challenge as well.
Make sure you submit an App Playground, not an Xcode Playground. Here is a thread that explains how to properly choose the right thing in Xcode or Swift Playgrounds.
Most likely you will be able to move your code into an App Playground with minor changes if you use SwiftUI, as I explained in this thread. It should be a mater of drag and dropping the View files. If you use resources such as ML models, these might require additional work.