First, install Haxe. Then, run the following commands in a terminal.

haxelib install feathersui
haxelib run openfl setup

To create your first project, run the next command.

haxelib run feathersui new-project MyFirstProject

To build and launch in a web browser, run the next command inside your project folder.

openfl test html5

If you prefer, create a project in Visual Studio Code, HaxeDevelop, and Moonshine IDE.

Create your first project using the Application and Button components:

import feathers.controls.Application;
import feathers.controls.Button;
import feathers.events.TriggerEvent;

class ExampleProject extends Application {
  public function new() {
    super();

    var button = new Button();
    button.text = "Click Me";
    button.addEventListener(TriggerEvent.TRIGGER, onTrigger);
    addChild(button);
  }

  private function onTrigger(event:TriggerEvent):Void {
    trace("Button was clicked or tapped");
  }
}