The concept: setup guides for the things in your home. Routers, printers, smart homes: one action per step, a drawing for every step, plain words throughout.
An illustration: an example guide; there is no live service behind this concept.
Each step asks for one thing, then says what you should see when it worked.
Ports, buttons and lights are drawn and labeled, so you know where to look.
No jargon without a meaning beside it. If a step can go wrong, the fix is right under it.
howsetup.com is the name for it. The domain is for sale.