Module 03: Developer Environment Setup


Codex Zero to Hero

Module 03: Developer Environment Setup

A practical module for moving from concept to safe Codex execution.

Learning Outcomes

  • Explain the topic in beginner-friendly language.
  • Prompt Codex with context, constraints, and done-when criteria.
  • Review output safely before publishing.

Safety Note

Use branches, backups, previews, and human review. Do not deploy untested code or commit secrets.

Module progress

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Lessons

Lesson 01

What a Terminal Is

By the end, learners can explain what a terminal is, ask Codex for focused help, review the result, and decide the next safe step.

Open lesson

Lesson 02

What a Command Is

By the end, learners can explain what a command is, ask Codex for focused help, review the result, and decide the next safe step.

Open lesson

Lesson 03

Local Project vs Production Site

By the end, learners can explain local project vs production site, ask Codex for focused help, review the result, and decide the next safe step.

Open lesson

Lesson 04

Install and Check Git Conceptually

By the end, learners can explain install and check git conceptually, ask Codex for focused help, review the result, and decide the next safe step.

Open lesson

Lesson 05

Node.js, npm, and Project Scripts

By the end, learners can explain node.js, npm, and project scripts, ask Codex for focused help, review the result, and decide the next safe step.

Open lesson

Lesson 06

Editors, IDEs, and Codex Context

By the end, learners can explain editors, ides, and codex context, ask Codex for focused help, review the result, and decide the next safe step.

Open lesson

Lesson 07

Module Capstone: Prepare a Safe Local Workspace

By the end, learners can explain module capstone: prepare a safe local workspace, ask Codex for focused help, review the result, and decide the next safe step.

Open lesson

Module Project

Create a practical artifact for developer environment setup: a prompt pack, checklist, issue brief, page draft, QA report, or deployment note.

Quiz

  1. What context should Codex inspect first?
  2. What should you review before accepting changes?
  3. What rollback step protects the work?
Answer key

Inspect relevant files and errors, review diffs and tests, and keep a backup, branch, or preview rollback plan.

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