Sure thing, coffee’s already steaming out the cup. Let’s fire up the porch launchpad: mix a solid propellant with a 1.5:1 oxidizer‑to‑fuel ratio, keep the grain geometry simple, and use a carbon‑fiber casing. Add a small thrust chamber, a basic nozzle, and a quick‑release safety valve. That gives us a 20‑kilonewton thrust, 0.5 seconds burn, and a thrust‑to‑weight ratio that’s barely over one. I’ll rig the ignition circuit—just a few copper wires, a battery, and a spark plug. While I set the timing, the houseplant on the sill will listen, it’s the best audience I’ve got. We’ll be off the porch in under a minute, before your coffee’s gone cold. Ready to launch?