While using git as an example is a bit over simplifying I agree with the comment. Over time, if you plan ahead, your build up a set of building blocks and at so

While using git as an example is a bit over simplifying I agree with the comment. Over time, if you plan ahead, your build up a set of building blocks and at some point you can put together an application very quickly. I suppose it is all relative though. While a month might seem fast to me someone else might expect a solid, fully featured application in a day or a weekend.