Do I need to use lerna in my own project ?

The LuciadRIA distribution ships with a lerna.json file, but that doesn’t mean that you must use lerna in your own projects. The Hello world: create your first LuciadRIA-based app illustrates how you can add LuciadRIA to a project without lerna.

The LuciadRIA distribution includes a lerna.json file so that you can edit the LuciadRIA sample code. For more information, see the Explore and edit the sample code tutorial.