You might think:
Author: Well, in previous chapters we were using only server components.
Reader: Server what?
Author: Server components, or simply components, such as
Author: That's right. Vaadin team performed the compilation for us and packaged the generated "widget set" inside one of the jars we are using.
Reader: Wait! What is a widget set?
Author: Oh, I'm sorry. I'm kind of a messy teacher. Well, what you see on ...