macos app overlay on top code - SERP Analysis

https://gaitatzis.medium.com/create-a-translucent-overlay-window-on-macos-in-swift-67d5e000ce90

https://discussions.apple.com/thread/253474519

https://stackoverflow.com/questions/76462673/how-to-keep-my-overlay-on-top-while-another-app-is-in-full-screen-mode

https://www.reddit.com/r/macapps/comments/1alpafj/is_there_a_mac_app_that_will_allow_me_to_keep_any/

https://apple.stackexchange.com/questions/219116/any-nice-stable-ways-to-keep-a-window-always-on-top-on-the-mac

https://stackoverflow.com/questions/75204465/how-to-create-whole-screen-overlay-in-macos-with-swift

https://github.com/tchlux/macos-grok-overlay

https://github.com/kamranahmedse/pennywise/issues/5

https://developer.apple.com/documentation/swiftui/view/overlay(_:alignment:)

https://superuser.com/questions/407334/how-can-i-see-a-visual-overlay-of-shortcut-keys-ive-pressed