Too Long; Didn't Read
Flutter is a cross-platform open source open-source development system. The first alpha edition was published in May 2017; after 1.5 years, Flutter received its first stable 1.0 update on 4 December 2018. Flutter will be the primary tool for creating apps for the new Google operating system, Fuchsia, which is currently under development and will replace Android, potentially and gradually. It is one of the few languages that can be compiled both AOT (ahead-of-time ⏳) and JIT (Just In Time)