You're preparing a technical talk on your new favorite open source project to present to your local software meetup group. You decide to create a Choose Your Own Adventure presentation using Reveal.js, Flask, WebSockets, and Twilio SMS. The final product will have decision screens where SMS votes from the audience are counted and displayed in real-time to determine the next step in the presentation story. To build the presentation, you'll need to install dependencies like Flask, Flask-SocketIO, Gunicorn, redis-py, Redis, and Twilio. You'll create a directory structure, set up environment variables, and write Python code for the Flask app, including views, templates, and websockets. The presentation will be served via a localhost tunnel using Ngrok, allowing it to be accessed from other computers. You'll also add a Twilio phone number on the screen, use Twilio SMS to let the audience vote, and persist votes in Redis. Finally, you'll set up websockets for real-time updates, allowing the presentation slide to update as soon as new messages are emitted by the server. With this setup, you can now create interactive Choose Your Own Adventure presentations with Reveal.js, Python, and WebSockets.