Good programmers know what to write. Great ones know what to rewrite (and reuse).
—Eric S. Raymond
For the past three chapters, we discussed things we can do to make the JollyFarm a good software system, both in the present as well as in the future. Making sure the code is well compartmentalized, the code quality is up to standards, and there is a good test suite wrapping all this. But we all know that one time or the other, things slip. ...