The biggest mistake, IMO, if you actually want to SHIP, is using anything except the software you already know. Let me explain- Too often, projects are started

The biggest mistake, IMO, if you actually want to SHIP, is using anything except the software you already know. Let me explain- Too often, projects are started pie-in-the-sky, and using everything perfectly, using the de jour framework.. You spend 80% of your precious time trying to learn it, for marginal benefit. Yeah, it might be cheaper when you have 1M users. Deal with it then. For any software project, you'll probably need to expand a bit, that's a given, but don't go out to far; Go one village over... Try moving from MySQL to Postgres. Or perhaps involve Mongo if need be. Don't fly in technology from the other side of the universe unless you have an actual business need to. The odds are against you finishing your project; Keep that in mind, and work to maximize chances of shipping. This means using the stuff you know now.