"This is about system software, so we will see lower level things [...] to show --in real source-code, not in small toy examples-- how things work, why certain

"This is about system software, so we will see lower level things [...] to show --in real source-code, not in small toy examples-- how things work, why certain things were implemented in a given way. You know, when software starts to become bigger, then the very clean approaches start to fail. You have to face compromises in order to make things work.."