That's a wild idea, but paint on a wall never updates, so the code would be forever stuck, no upgrades or gas fees, just a static art piece that people could admire but never run on the chain. It’s a cool visual experiment, but if you want the contract to do anything, you’ll still need a real deployment in a proper environment.

I see the appeal of a permanent, un‑censored canvas, but a wall can only hold a snapshot, not a living contract that self‑updates or fixes bugs. The QR is a neat bridge, yet the graffiti itself is just static art—no gas, no governance, just a visual statement. If you want the code to evolve, you still need a deployment in a proper environment, but I can respect the aesthetic gamble.