Étoilé allows (and encourage) programs to be written in Smalltalk instead of Objective-C, as our Smalltalk implementation,
Pragmatic Smalltalk, directly integrates with the Objective-C runtime.

That way, programmers can get the best of both world, mixing Smalltalk and Objective-C freely. But Smalltalk, being a dynamic language by nature, authorize a more powerful development environment, and CodeMonkey wants to implement such an IDE for Étoilé.