It certainly can be. It doesn't have to be thought. It really depends a lot on your team. I've worked on teams where building large scale, but minimal, well

It certainly can be. It doesn't have to be thought. It really depends a lot on your team. I've worked on teams where building large scale, but minimal, well tested systems was their bread and butter. I've also worked on teams where hooking up existing frameworks was what they were comfortable with and any footstep taken outside of that activity was marked with considerable rancour. Not invented here syndrome is also a real thing and sometimes people sit there building "game engines" instead of "games" ;-) On the other hand "Invented here" syndrome is also a real thing and sometimes people completely panic when faced with the thought of writing something novel. You need to go with your team. I think it was Alan Kay who summed it up best: If your team is capable of building a compiler, you must build a compiler. If your team is not capable of building a compiler, you must not build a compiler. That matches my experience exactly ;-)