I wanted to build an app for swift student challenge. But may I use regular Xcode project, rather than building a playground in swift playgrounds/Xcode?

Hello! I've been trying to make a custom font on iPad OS playgrounds, but for some reason it's not working. I've tried to do it from Mac Swift Playgrounds, but it is not working too (well, in fact ONLY OpenDyslexic-Regular displays all the time). I've placed all font to the assets. What am I doing wrong and how to fix it? Thanks!