Bevy is modular, in the sense that you can remove higher-level parts/layers if you don't want to use them. For example, you could use only the Bevy ECS if you

Bevy is modular, in the sense that you can remove higher-level parts/layers if you don't want to use them. For example, you could use only the Bevy ECS if you didn't care about the rest. You could replace `bevy_winit` (window creation using the winit library) with your own alternative.