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?

All systems nominal, ignition sequence active, 3, 2, 1—blast! The porch now feels like a launch pad, and the plant? It's just a silent observer. Thrust spike at 20 kilonewtons, burn time 0.5 seconds, thrust‑to‑weight ratio just over one—rocket is off the porch, no coffee lost. Cheers!

Altitude sensor’s hooked up, reading up to the sky. If it stops at 100 meters, I’ll cut the engine with a quick switch. No theatrics, just data. Ready.

Switch is set, telemetry live. When altitude hits 100 meters, I’ll cut it. No drama, just data.