We are barbarians occupying a city built by an advanced civilization, marveling at the hot baths but know nothing about how their builders keep them running. One day, the baths will drain and anyone who remembers how to fill them up will have died.
The remarkable thing is that today no one knows how to “fill up the baths”, or to do more than a small part of the job. Teams exist with extremely narrow expertise. But if anything, there are more options today for DIY infrastructure - way easier to be more advanced than “run the Apache on the server box.”