Questions about swift student challenge 27

I'm excited to see the announcement of Swift Student Challenge 27, but I have a couple of questions:

The rules mention that Xcode Apps are allowed. Does this mean we can create and submit a folder containing an .xcodeproj file instead of a .swiftpm Swift Playgrounds package?

While it's great to see support across all Apple platforms this year, I'm a bit concerned about whether the judges will test submissions on physical devices or in the simulator. I had a similar concern last year (https://developer.apple.com/forums/thread/812429).

Thanks!