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BUILD 39 · Setup & first result
How to install Claude Code desktop or Codex (ChatGPT desktop) on Windows and Mac
Reference library · Use when needed, not as the four-week syllabus. Existing access and billing are unchanged. A live-cohort seat requires confirmation for that cohort. Explore the four-week course →
From never having done it to your first success: four routes — read one file, write one file, approve once
Step cards · real screenshots
Fully recorded on real machines: a real screenshot for every step, practice pack, reference output and checker.
What you walk away with
What you're holding when this lesson is done: an installed AI that has read one of your files, written one file, and been approved by you once.
How the lesson goes
- Before you start
- Download it from the official page
- Install it into Applications, open it the first time, reach the sign-in page
- After signing in: you're already in the workspace
- Connect the workstation
- Set the permission mode to Manual
- Have it read one file
- Have it write one file, and approve it once
- Installed
- Install Git first
- Download Claude from the official page
- Run the installer, open it the first time, reach the sign-in page
- Install it into Applications, open it the first time, sign in
- Switch to Codex
Real status
Fully recorded on real machines: a real screenshot for every step, practice pack, reference output and checker.
91 screenshot references
Check this lesson’s tool and computer requirements. The setup lesson covers Claude Code / Codex on Mac and Windows.
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FAQ
Do I need to code?
Beginner and everyday-work lessons are designed for non-technical users. Website, software and automation lessons require practice and testing; copying instructions does not guarantee a working deployment.
What do I install first?
Check the tools and account requirements in this lesson. Start with Build 39 if you have not installed Claude Code or Codex. The Codex app is not the ChatGPT chat interface.
Is this lesson free?
This is a public preview of the existing member library. Full materials remain subject to existing membership access. The new four-week course is a separate teaching programme and is not accepting payment. Try a free task first, then read the course details.