1 from me for adding UWB to the nearbyinteraction... Keep safe.

Projects are created in Xcode, a macOS app which only runs on Macs. My advice is to search online for simple app tutorials which Interest you and follow them to learn. As you grow, take apart open sourced Xcode projects to see how they work. if you have an iPad, Swift Playgrounds is an excellent way to learn the Swift language. Above all, keep safe...