sure, it's not trivial. just easy. you can start baking buns in your own oven, and then you can sell them. people will buy them, and then you can buy another oven. that is, if you're the first. if you're not the first, the established bakery next door will make 100 times more buns with 10 % of the cost, and you can't compete against it without serious initial investment.
Finland