How to Launch a Product on Etse?

On etsie, in products, is super fast. There's not even a 24 hour wait. And on top of that, you don't need a barcod and a you can launch ther atse ad very quickly as well. How are you fulfilling these orders? Are you using like w f s for walmart? Or do you doing it all yourself? Itl rigt now, because it’s ten to one between amazon and etsi. You know, hat like cheron is for walmor etsy's a different beast. Like, do you actually sell more on etsey than amazon? Or is amazon bigger? And what's the difference