In a quest for the best technology stacks and web app development trends, we have discovered a few golden rules of the industry. These rules we’ve found are universal and they are useful for both an enterprise and startup. To help you out, here’s a list of 5 golden rules for developing modern web applications. For instance, how long your user base will spend on your app? How long will your user want to spend on it? In what environment will people be using it? Decide on your API.