A design studio with no receptionist, and a door that finally answers

The studio takes up half a floor in an old print building, one open room, five desks, headphones on more often than not. There used to be a buzzer by the glass door, wired to nothing in particular since the last renovation. A client would arrive for a portfolio review, knock on the glass, wait, knock again a little harder, and eventually someone at the desk nearest the door would notice movement out of the corner of their eye and go let them in. It worked, more or less, as long as that desk happened to be occupied by someone who wasn't deep in a deadline with their back to the door.

Hiring someone just to watch the entrance never made sense for five people. The work is billable by the hour, and a studio this size runs on everyone doing design, not front desk duty. They tried a shared number taped to the glass - "text us, we'll come down" - but couriers don't text, and clients standing outside with a laptop bag don't want to feel like they're inconveniencing someone by asking to be let in at all. More than once a delivery just left the package leaning against the door frame and walked off.

Someone printed a small QR code and taped it next to the buzzer, with three words under it: scan, tap, someone's coming. A visitor points their phone camera at it, no app to find or install, and taps to send a ping straight to whoever in the studio has the door duty that day. It costs nothing to set up and nothing to use, and because it's its own code, separate from anything else in the building, whoever gets the notification knows exactly what it means: someone is standing at the studio door right now.

The same client comes back a few weeks later for the next round of revisions. She scans, taps, and goes back to checking her phone. Across the room, a designer's watch buzzes once. He glances at the door, sees her through the glass, and gets up without breaking whatever thought he was mid-sentence on with a colleague. Less than a minute later the door opens and she's inside, coat still on, no apology needed on either side.

Nobody sits by the entrance anymore. Nobody has to. The door still gets answered, usually by whoever happens to be closest to done with what they're doing, and the studio stays exactly as small and exactly as busy as it was before anyone thought to print anything at all.