Yep, eventually you become sufficiently skilled at enough of those disciplines as to be able to call yourself a specialist in many/most of them. At which point, you're either in high enough demand that only those that are desperate for you are willing to pay, or you're priced out of the market... or you still just do it for fun.
And yes, in a startup you will learn these things, whether you want to or not... and that growth curve will be painful. And you'll either thrive, or you'll die.
And yes, in a startup you will learn these things, whether you want to or not... and that growth curve will be painful. And you'll either thrive, or you'll die.