Flutter and programming language,

[cathylister]

Flutter is a cross platform UI toolkit. It allows code reuse across platforms such as iOS or Android and also allows applications to interact directly with underlying platform services. Developers will be able to create high-performance apps that work on all platforms. This allows them to embrace differences and share as much code as they can.

[gracewmuinamo]

The state can be modified in many places: the color box and the hue slider clean architecture in flutter architecture samples https://surf.dev/flutter-architecture-guide/. Changes made to the UI must be reflected by the user as they interact with it. Worse, even a small change to one area of the interface could cause ripple effects on seemingly unrelated code pieces.