I was the third engineer hired at Stitch Fix, and Ruby and Rails has been a key part of our success as an engineering team.  We spent the first 12 months delivering value and keeping up with the business.  We didn&#x27;t spend time dealing with tool selection, choosing plumbing options, or any of that and it was key in establishing our team as a partner in the business (as opposed to just being the IT shop).  I can&#x27;t imagine a startup using anything else(<i>), especially early on.  While we may replace parts of our code with more specialized tools, Ruby and Rails will continue delivering value for quite some time.<p>(</i>) certainly if your domain is something specialized, this statement makes no sense.