Products
You set the rules, once
You decide what your customers can see, what they can do, and how much they can spend, once. Nothing they build can ever go further than that.
Every customer only ever sees their own information, never anyone else's, and nothing they build can reach a system you haven't approved.
Every build is saved as a version you can undo, and you can put a spending cap on what any one customer's builds can cost.