For me, getting the first working example running is often the biggest step. Up until then, you don't know whether what you are doing will work at all. After

For me, getting the first working example running is often the biggest step. Up until then, you don't know whether what you are doing will work at all. After that, you can start fiddling with it and changing bits and pieces. Saying "Serve a website with 1 line of code!" and then starting apache with that 1 line is useful, because I can then go from there to changing configurations. Fewer lines for the rough draft => fewer places to mess up in unknown ways.