Only the sample products and layout change. Every setup includes the same shop, checkout, and admin, and you can replace the sample content later.
Start with a .drops.st address based on your shop name. You can edit it now or connect your own domain later.
Choose a starting shop, pick your shop URL, and create your login.
Use an email address you can open now so you can verify your account.
Choose a starting setup and the address customers will use.