That involves knowing the one line on the terminal, and when you google &quot;rails set up&quot; you will get a bunch of out-of-date tutorials, and not knowing rails you won&#x27;t know which is out-of-date.<p>On the other hand, 30 year old C code will often compile right out of the box, because the people maintaining them weren&#x27;t chasing the New Flashy every year.<p>The modern systems suck in terms of maintainability.