I sometimes see the term Bootstrapper. I saw it last when creating some learning exercises for Prism. I stumbled upon UnityBootstrapper class. My question is: when would you call a class a Bootstrapper? Why? What does it say about the class?
What is a Bootstrapper in programming?
terminology;naming;concepts
In your specific example you're talking about a Dependency Injection Container Bootstrapper.  This is where you configure all of your instances and generally prepare the container for use.  It also ends up being where most of the coupling in your application resides (it has to reside somewhere), but this is a side effect, not the purpose.In more general terms, a bootstrapper is just a class or method which prepares/configures a group of classes/objects or an entire API for your specific needs and use.