Most problems solved with technology are like this, stringing together the right libraries with a thin layer of business logic. However many startups or resear

Most problems solved with technology are like this, stringing together the right libraries with a thin layer of business logic. However many startups or research-oriented technology development will require some part of your stack to be reinvented from scratch to solve whatever problem is the premise of the business. In these situations it becomes clear pretty quickly who is comfortable solving technology problems from first principles, situations that these educational exercises are aiming towards.