Sure thing, imagine a grinder with a magnetic “safety cage” that slides over the burrs only when the motor’s off. When you flip the switch, a tiny sensor tells the cage to unlock, letting you line up your portafilter. The trick is to make the cage’s motion smooth—use a low‑friction track so it doesn’t jerk the grind. Add a quick‑release latch that snaps back once you start grinding, so the bag can’t just sit there and get nicked. That way you’ve got a lock‑in system that keeps the coffee tight but still lets you flow the espresso without a hiccup. If you want to be extra nerdy, run the lock through a microcontroller that counts turns and only unlocks after a preset number of pulses—perfect for a coffee thief who loves a good puzzle.