The SwiftUI `@Entry` macro introduced in recent SwiftUI versions makes the open-source library EnvironmentKit obsolete. EnvironmentKit was built to reduce boilerplate when creating custom SwiftUI environment values. With `@Entry`, you simply annotate a property in an `EnvironmentValues` extension and the macro handles the rest — no custom key types or manual getters/setters needed. The author has decided to deprecate and remove EnvironmentKit from GitHub as a result.