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Agents in the Wild

A receipt printer anyone can message: 700+ notes from around the world

Their first Raspberry Pi project, built with Cursor and a little ChatGPT: a website that prints visitors' messages on a thermal printer in San Diego. They've been mostly incredibly kind.

Done withCursorChatGPTSpotted· by HN user maddiedreese· Oct 15, 2026

Result Mostly incredibly kind messages

“I’ve already received over 700 (mostly incredibly kind) messages from all around the world.”
From the source: Hacker News · 2025-11-04

Spotted: found in the wild. Details are as reported by the source above and have not been independently verified.

What they did

Built a site that sends messages straight to a receipt printer in San Diego, using Cursor, a Raspberry Pi 4B, a generic thermal receipt printer, a Convex database and a front end hosted on Netlify, with some help from ChatGPT. It’s open source.

How it went

Their first project of its kind has received over 700 messages, mostly incredibly kind, from all around the world.

Try it yourself with Cursor
Help me build a project where people can send a short message from a web page and it prints on a thermal receipt printer at my home, connected to a Raspberry Pi. Include a message length limit, a profanity and spam filter, a queue so nothing is lost if the printer is offline, and step-by-step setup instructions for a beginner.

A starting prompt written by Agents in the Wild. Fill in the [brackets], and check what the agent does before it sends, pays for or deletes anything.

★ 91 · MIT · HTML · Last update Nov 29, 2025

The builder's own repo, as the source says. We haven't audited this code. Read it before you run it.

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