I used to optimise for this, but different customers have different requirements anyway. Also dev en to me is my macbook pro + terminal + text editors, but on top of that there's set up for each project. I used to optimise for this, but it took a week or so 3 years ago and I now I don't care how painful it was. I'm sure it matters a lot more for open source projects, where you want to encourage lots of ad hoc contributors who can set up easily.