Aiolos, ancient greek for quick-moving/nimble, is a Swift UI framework inspired by the floating panel, that was introduced to Maps app in iOS 11. Give it a try in MindNode 5 for iOS (free trial available).
It is fully gesture-driven, takes safe area insets into account, has support for right-to-left languages baked in and automatically reacts to the on-screen keyboard. Compared to many other open source panel solutions, Aiolos is designed to be an always-visible child view controller, and therefore does not use the custom view controller transition API of iOS.
