This article describes general app deployment with App Studio.
Fusion Webapps service
Fusion Web app deployment gives you an embedded instance of App Studio in each of your Fusion instances.
Package your search app in a Java WAR file, which can be deployed in a servlet container such as Tomcat or Jetty. This is the most common way to deploy a search app.
Package your search app in a Java JAR file that also contains an embedded Tomcat web server. The app is ready to deploy in a production environment. It isn’t necessary to build a WAR file and deploy that in a servlet container or application server.
Package your search app in a Java JAR file. You can run the app with the Java launcher.