OpenAI Codex: The Complete Beginner’s Tutorial (2026)
🔗 Link do vídeo: https://www.youtube.com/watch?v=VX3RXec-Ots
🆔 ID do vídeo: VX3RXec-Ots
📅 Publicado em: 2026-07-02T13:00:07Z
📺 Canal: Leon van Zyl
⏱️ Duração (ISO): PT19M2S
⏱️ Duração formatada: 00:19:02
📊 Estatísticas:
– Views: 925
– Likes: 45
– Comentários: 5
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Learn how to use OpenAI Codex step by step — build a full AI-powered web app using the Codex desktop workspace, without writing the code yourself.
🚀 My AI coding courses, live Q&A, weekly builder challenges, direct access to me, and a serious builder community:
https://skool.com/agentic-labs
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Disclosure: This video is not sponsored. Some links are affiliate links, which means I may earn a small commission at no extra cost to you.
In this video, I show you how to build an AI native fitness app from scratch inside the OpenAI Codex desktop app, powered by a free local model running on Ollama. You'll learn how to set up and navigate the Codex workspace, plan properly using plan mode, the grill-me skill, and feature files, and build plus test a real app end to end, all running multiple agents in a single visual workspace.
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Resources Mentioned
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📦 Source code, prompts, workflows + peer discussion:
https://skool.com/leonvanzyl
– OpenAI Codex (download): https://openai.com/codex
– Ollama (run local models): https://ollama.com
– Qwen 3.6 model on Ollama: https://ollama.com/library/qwen3.6
– grill-me skill (skills.sh): https://skills.sh
– Vercel AI SDK: https://ai-sdk.dev
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Watch This Next
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▶️ Codex CLI Tutorial (the terminal version):
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Go Deeper with Agentic Labs
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https://skool.com/agentic-labs
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Subscribe / Connect
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Business & sponsorship enquiries:
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Question
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What are you building with the Codex app right now?
⏱️ Chapters
0:00 Why Try OpenAI Codex
0:21 Install The Codex App
1:27 Workspaces And Sessions
2:23 Codex Settings Tour
5:21 Create Project Select Model
6:23 Using Plan Mode
6:55 Plugins And Agent Skills
9:18 Plan App With Grill Me
10:46 Parallel Sessions And Mockups
11:45 Design System And AI SDK
13:06 Save And Split Plan
15:14 Implement With Goal Command
16:32 Pet Command And Testing
17:59 Final Result And Recap
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About This Video
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In this video, I show you how to build a real, working AI app using the OpenAI Codex app and a free local model on Ollama. This tutorial is for developers, AI builders, and serious no-code/low-code builders who want practical workflows for building real apps, AI agents, automations, and coding systems.
On this channel, I share practical AI engineering and agentic coding workflows using tools like Claude Code, OpenCode, Codex, Cursor, n8n, Next.js, MCP, local AI models, and modern AI development workflows.
#agenticcoding #codex #aicoding