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How I built it

A quiz night game

A TV-style quiz show played on phones and tablets over the local Wi-Fi, with buzzers, rounds and live scores. No internet or app store needed.

Home Wi-Fi, no internet
Sam
  • Samfirst
  • Jo+0.034s
  • Priya
  • Tom

The problem

A proper TV-style quiz night at home, on the phones and tablets already in the house. No app store, no internet during play, and no cost.

What I built

A quiz game run from a laptop over the home Wi-Fi. Players join from their own phone or tablet, the host runs it from a tablet with the answers, and every screen shows the question and the buzzers at the same moment.

How it works

  1. 1

    Scan to join

    The laptop shows a big QR code. Up to four players scan it, type a name and pick a seat colour. No app to install.

  2. 2

    A buzzer that's actually fair

    Each tablet keeps checking how far its clock is from the laptop's and times a press the moment a finger lands, so the quickest player wins, not the one with the best Wi-Fi. Presses within 20 thousandths of a second are a dead heat.

  3. 3

    The host keeps control

    A PIN-protected host screen shows the answers, with big Right, Wrong and Undo buttons and the scores.

  4. 4

    Nothing gets lost

    The game is saved after every move. A tablet that sleeps rejoins in the same seat, and even a laptop restart carries on from the same question.

What it uses

  • Node.js
  • Socket.IO
  • Phone and tablet web apps
  • Automated rehearsals with Playwright

What something like this could do for your business

Interactive quizzes for events, training days or a pub quiz night, played on people's own phones with nothing to download.

Let’s have a chatMessage David on WhatsApp

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Let’s have a chat

Tell me a little about your business and I’ll come and see you. I work with businesses in Braintree, Chelmsford and the surrounding areas.

WhatsApp me: 07733 260092

Or call 07733 260092 or email david@rabbitrabbit.com

No hard sell. If there’s nothing worth fixing, I’ll say so.