freeCodeCamp Releases Full Free OpenAI Codex Crash Course with Voice-Controlled Game Build
Roger_M_Taylor · x · 2026-09-13
freeCodeCamp has released a complete hands-on beginner course for OpenAI Codex on YouTube, covering installation, pricing tiers, interface tour, scheduled background automations, external context via Notion and Supabase, and handling GitHub pull requests inside the environment.
The course focuses on Codex's two core operating modes: Plan Mode (iterative questioning and architecture outlining) and Go Mode (autonomously driving an MVP to completion). The capstone builds a voice-controlled Flappy Bird-style game entirely through Codex prompts, demonstrating iterative prompt refinement, instant browser deployment, and microphone input testing, before converting the open-source repo into native iOS/Android apps with Expo.
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