Development preparation steps before new SaaS

Hello Hackers!

Before I start the development of a micro saas, I would like to ask you how do you prepare and setup all the workflow when there's the possibility of selling the saas later on. The saas will be subscription based.

  - Do you create a dedicated Gitlab/Github account?
  - Do you create a decicated AWS/Firebase account?
  - Do you create a dedicated email account?
  - Do I have to create a company in order to run the saas?
  - Do I have to register the product?

When I mean dedicated, I'm refering at no using personal accounts whatsoever.

Do you now any articles/books on this kind of subject? How to prepare the more technical aspects considering the product can be sold.

Deeply appreciated.