A: It's a time machine that only goes back to the 90s, but not really.
A: You don't, it's not a real thing. But if it were, you'd use a manual, but it would just be a bunch of scribbles in a notebook.
A: It's not a physical object, so it's safe from physical harm. But if you were to imagine it as a physical object, it's probably not safe from lawsuits from the 90s.