Master PC - The Multiverse Amnesia

The premise is the following:

• The main character has had access to a mystical piece of technology that made their every sordid fantasy come true by altering the world, and everyone in it. They lived a life of debauchery for lifetimes, until nothing felt new anymore.
• Our stories pick up after they have pressed the reset button on reality, creating a new world where they set themselves up with favorable circumstances to live their dream anew.
• The protagonist wakes up with no memories of their previous world, but have perhaps left themselves some hints to get started.
• The Master PC, a device that can change anything, may exist or come into the protagonist's possession in the new world, but would likely be locked behind some sort of failure-state condition.