It prints a note at his desk.
In about 5 seconds.
Your note is printing at his desk.
A side project Sean built with Claude (Anthropic's AI) — the server, the printer agent, and this page were all coded with AI as his pair programmer.
Pop is a small thermal receipt printer at Sean's desk. When you send a note, it prints on paper in about five seconds. Sean calls them PopNotes.
He reads them and replies when he can — sometimes right away, sometimes at the next break, sometimes later by message. No inbox, no dashboard, just a note on his desk.