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OpenAI Codex Crash Course – Build & Deploy Apps with Autonomous AI

freeCodeCamp.org

14.8K views10 Sept 2026

YouTube

Learn the core fundamentals of OpenAI Codex, from setting up scheduled automations and custom skills to mastering Plan and Go modes. Follow along step-by-step as we build, test, and deploy a voice-controlled Flappy Bird game built entirely with Codex. Course developed by @SkyrocketingTech ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp ⭐️ Chapters ⭐️ - 00:00 Introduction to OpenAI Codex - 01:17 Download & Installation - 02:08 Pricing & Plan Options - 03:27 Left Sidebar Overview & Scheduled Automations - 05:08 Projects vs. Chats - 07:09 Integrations & Plugins (Supabase, Notion, Gmail) - 09:21 Updated Interface & ChatGPT Desktop Integration - 11:08 GitHub Pull Requests in Codex - 12:07 Deploying Web Apps with Sites - 14:02 Main Work Area: Voice Input, Models & Speed Settings - 17:06 Permission Levels & Context Inputs - 19:13 Commands, Codex Pet & Reusable Skills - 26:04 Plan Mode vs. Go Mode Explained - 30:25 Building the Voice-Controlled Flappy Bird Game - 34:32 Testing & Demonstrating the Game - 38:20 Open-Source Repo & Converting to Mobile with Expo - 39:30 Conclusion & What's Next 🎉 Thanks to our Champion and Sponsor supporters: 👾 @omerhattapoglu1158 👾 @goddardtan 👾 @akihayashi6629 👾 @kikilogsin 👾 @anthonycampbell2148 👾 @tobymiller7790 👾 @rajibdassharma497 👾 @CloudVirtualizationEnthusiast 👾 @adilsoncarlosvianacarlos 👾 @martinmacchia1564 👾 @ulisesmoralez4160 👾 @_Oscar_ 👾 @jedi-or-sith2728 👾 @justinhual1290 -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news

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