Plenty of real businesses started with one lawnmower and a flyer on a corner-store bulletin board.

The gap between nothing and a real business is much narrower than it looks. One tool, one way of telling people, and somebody willing to pay is the entire structure, and a great many large things began that modestly. Waiting for a proper setup is usually waiting for permission. What makes it real is the first customer and not the branding.

Work out the cheapest honest version of what you could offer with things you already own. A mower, a camera, a sewing machine, one free afternoon. Tell twenty people in a way they can reply to, and take the first yes seriously.