# Eject yourself from work with a little help from Codex > Source: > Published: 2026-11-03 04:40:30+00:00 Red Card is a webcam-powered Codex skill that ejects you from work, and you can build it yourself. Hold up a red card and the app sends your goodbye, leaves the call, blocks time on your calendar, turns on your vacation responder, and runs a tiny referee animation. You do not need to know how to code—Codex walks you through setup and helps you make it your own. - A Mac with ChatGPT for macOS and Codex access - Google Chrome, signed into the account you want Red Card to use - Python 3.11 or newer and the Xcode Command Line Tools - Your Mac's camera, or a connected webcam - A physical red card, or a phone showing the screen below Open [this image](https://raw.githubusercontent.com/openai/redcard/main/assets/red-card.png) full-screen on your phone—or print it—and hold it up to the webcam. Open ChatGPT on macOS in Codex mode and type: ``` Help me build the project at https://github.com/openai/redcard ``` Codex will install a self-contained `$redcard` skill, build its native helpers, and run the required permission and camera checks. Setup stops before the real Red Card sequence starts. If Codex asks you to reload or start a fresh task after setup, do that once so the newly installed skill becomes available. Once setup is finished: 1. Join a Meet call in Chrome. 2. Type `$redcard` in Codex. 3. Hold up your red card when you are ready to leave. Red Card takes it from there. Press **Esc** at any time to stop Red Card, even while Chrome is focused. The setup installer checks permissions before the first real `$redcard` run. When macOS asks, click **Allow**. If a setting needs to be changed manually, Codex will take you to: - **System Settings > Privacy & Security > Camera** - **System Settings > Privacy & Security > Accessibility** - **System Settings > Privacy & Security > Input Monitoring** , if macOS asks for it so the global Esc shortcut can work Enable **ChatGPT** for these permissions. You may need to quit and reopen ChatGPT after changing a permission. In Chrome, also enable **View > Developer > Allow JavaScript from Apple Events**. Setup and every real Red Card launch verify this setting. Ask Codex to change the goodbye message, calendar block, vacation response, sleep behavior, red-card sensitivity, or referee animation. Describe what you want in plain language and Codex will update and test it with you.