Pickle

A pickleball scoreboard a whole group runs on their phones at the court.

What it does

In a rotating doubles group the same questions come up every evening: who sits out next, what's the score, who has played whom. Pickle answers them on one screen.

• Live rally scoring that any phone at the court can tap, so nobody has to be the official scorer.
• Gathering days with who turned up, every match, and a won/lost table for the day.
• Next match picks who plays next from who has sat out longest.

How it's built

• One HTML file with plain JavaScript. No framework, no build step.
• Each phone keeps its own copy in the browser, so it works with bad court Wi-Fi. A small Cloudflare function keeps everyone's copies in step.
• Two phones tapping a point at the same moment can't both count it. The store only accepts a change built on the latest version of the game.
• The same page is wrapped as an Android app, where each buyer's data stays on their own phone.

I built it with Claude, one feature at a time, testing each one at the court the next evening.