https://www.youtube.com/watch?v=BB3Gi4CGKrA&list=PLuoeXyslFTuZRi4q4VT6lZKxYbr7so1Mr&index=2
https://www.avanderlee.com/swift/struct-class-differences/
https://itnext.io/drawing-in-swiftui-code-shapes-with-paths-in-swift-ui-3d6b7373f75f
https://www.youtube.com/playlist?list=PLuoeXyslFTuZNAZKB3FAYqiJZKigjC3VG