My friends and I, are starting to create our own startup, we have no intend on revolution the world but some of our idea seems to be interesting enough to try. My main goal, as a developper is to provide a great start for our idea. But I'm facing an interesting question. How do I write my first php line of code. I mean, I'v started plenty of little project but what make a startup a great startup? What is the first thing you need to do when you'r the developper? And the secondary question, there probably many technological challenges so does startup rely on framework (and trust other) or prefer to use a custom solution?