These days applications are getting more and more complex. It's becoming quite difficult to keep track of all the different components an application needs to function (a database, an AMQP, a web server, a document store...). It keeps getting harder and harder to setup new development environments and to bring new developers into the team. Stuff works on one dev machine but doesn't on others? Code breaks often when deployed to production even though all tests were passing and it worked on the dev machine?
The idea of this talk is to convey how important it is that we have our development environment as close to production as possible. That means setting up all those various services on your laptop/workstation.