User Profile

Hello, according to this document - https://developer.apple.com/fonts/system-fonts/#downloadable the YuKyokasho Japanese font should be available for download on iOS 13+ devices but I'm unable to find how to use it on a SwiftUI app. I have the font installed on my Mac through Font Book but I'm not sure if I can just copy it to my app's resources folder and use it as a custom font, because I may be breaking some obscure licensing terms. Could somebody give me any hint on which is the proper way of doing this or point me to documentation? Thanks!