[niam]

The title writer might be doing the project a disservice by using the term "formal" to describe it, given that the project talks a lot about "specs". I mistook it to imply something about formal specification.

My quick understanding is that isn't really trying to utilize any formal specification but is instead trying to more-clearly map the relationship between, say, an individual human-language requirement you have of your application, and the code which implements that requirement.