{"id":2972,"date":"2026-04-25T21:52:35","date_gmt":"2026-04-25T21:52:35","guid":{"rendered":"https:\/\/aiopsschool.com\/blog\/?p=2972"},"modified":"2026-04-25T21:52:35","modified_gmt":"2026-04-25T21:52:35","slug":"how-to-install-codex-on-macbook-air-using-command-line-and-app-complete-tutorial","status":"publish","type":"post","link":"https:\/\/aiopsschool.com\/blog\/how-to-install-codex-on-macbook-air-using-command-line-and-app-complete-tutorial\/","title":{"rendered":"How to Install Codex on MacBook Air Using Command Line and App: Complete Tutorial"},"content":{"rendered":"\n<p>Codex is OpenAI\u2019s AI coding agent that helps developers understand code, modify projects, review changes, debug issues, and work inside development environments. On a MacBook Air, you can use Codex in two main ways:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Codex CLI<\/strong> \u2014 command-line tool used inside Terminal.<\/li>\n\n\n\n<li><strong>Codex App<\/strong> \u2014 desktop app for macOS with a visual interface.<\/li>\n<\/ol>\n\n\n\n<p>OpenAI\u2019s official Codex documentation says the CLI supports macOS and can be installed with <strong>npm<\/strong> or <strong>Homebrew<\/strong>. The Codex app is available for <strong>macOS and Windows<\/strong>, with a separate macOS Apple Silicon build for modern Macs like MacBook Air M-series devices. (<a href=\"https:\/\/developers.openai.com\/codex\/cli?utm_source=chatgpt.com\">OpenAI Developers<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. System Requirement for MacBook Air<\/h2>\n\n\n\n<p>Your MacBook Air with Apple Silicon chip, 16GB unified memory, and 512GB SSD is suitable for Codex.<\/p>\n\n\n\n<p>Recommended setup:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>macOS: Latest available version\nChip: Apple Silicon M1\/M2\/M3\/M4\/M5\nRAM: 8GB minimum, 16GB recommended\nDisk: At least a few GB free\nTools: Terminal, Git, Homebrew, Node.js\/npm\n<\/code><\/pre>\n\n\n\n<p>Before installing Codex, open <strong>Terminal<\/strong>.<\/p>\n\n\n\n<p>You can find Terminal here:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Applications \u2192 Utilities \u2192 Terminal\n<\/code><\/pre>\n\n\n\n<p>Or press:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Command + Space \u2192 type Terminal \u2192 Enter\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Part 1: Install Codex Using Command Line<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">2. Check Your Mac Architecture<\/h2>\n\n\n\n<p>Run:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>uname -m\n<\/code><\/pre>\n\n\n\n<p>If you see:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>arm64\n<\/code><\/pre>\n\n\n\n<p>That means your MacBook Air is Apple Silicon. This is expected for M-series MacBooks.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. Install Homebrew<\/h2>\n\n\n\n<p>Homebrew is a package manager for macOS. It helps install developer tools easily.<\/p>\n\n\n\n<p>Check whether Homebrew is already installed:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>brew --version\n<\/code><\/pre>\n\n\n\n<p>If you see a version number, Homebrew is already installed.<\/p>\n\n\n\n<p>If you see:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>zsh: command not found: brew\n<\/code><\/pre>\n\n\n\n<p>install Homebrew using:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/bin\/bash -c \"$(curl -fsSL https:\/\/raw.githubusercontent.com\/Homebrew\/install\/HEAD\/install.sh)\"\n<\/code><\/pre>\n\n\n\n<p>After installation, add Homebrew to your shell path:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>echo 'eval \"$(\/opt\/homebrew\/bin\/brew shellenv)\"' &gt;&gt; ~\/.zprofile\neval \"$(\/opt\/homebrew\/bin\/brew shellenv)\"\n<\/code><\/pre>\n\n\n\n<p>Verify again:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>brew --version\n<\/code><\/pre>\n\n\n\n<p>Expected output:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Homebrew 4.x.x\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. Install Git<\/h2>\n\n\n\n<p>Codex works best inside Git projects because you can review and revert code changes safely.<\/p>\n\n\n\n<p>Install Git:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>brew install git\n<\/code><\/pre>\n\n\n\n<p>Verify:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>git --version\n<\/code><\/pre>\n\n\n\n<p>Example output:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>git version 2.x.x\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. Install Node.js and npm<\/h2>\n\n\n\n<p>Codex CLI can be installed using npm. npm comes with Node.js.<\/p>\n\n\n\n<p>Install Node.js:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>brew install node\n<\/code><\/pre>\n\n\n\n<p>Verify:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>node -v\nnpm -v\n<\/code><\/pre>\n\n\n\n<p>Example output:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>v24.x.x\n11.x.x\n<\/code><\/pre>\n\n\n\n<p>If both commands show versions, Node.js and npm are ready.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. Install Codex CLI Using npm<\/h2>\n\n\n\n<p>OpenAI\u2019s official CLI install command is: (<a href=\"https:\/\/developers.openai.com\/codex\/cli?utm_source=chatgpt.com\">OpenAI Developers<\/a>)<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm i -g @openai\/codex\n<\/code><\/pre>\n\n\n\n<p>After installation, check Codex:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>codex --version\n<\/code><\/pre>\n\n\n\n<p>Then start Codex:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>codex\n<\/code><\/pre>\n\n\n\n<p>The first time you run it, Codex will ask you to sign in using your <strong>ChatGPT account<\/strong> or an <strong>API key<\/strong>. (<a href=\"https:\/\/developers.openai.com\/codex\/cli?utm_source=chatgpt.com\">OpenAI Developers<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. Alternative: Install Codex CLI Using Homebrew<\/h2>\n\n\n\n<p>OpenAI also lists Homebrew as an official install option for Codex CLI. (<a href=\"https:\/\/developers.openai.com\/codex\/quickstart?utm_source=chatgpt.com\">OpenAI Developers<\/a>)<\/p>\n\n\n\n<p>Run:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>brew install codex\n<\/code><\/pre>\n\n\n\n<p>Then start:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>codex\n<\/code><\/pre>\n\n\n\n<p>Use either <strong>npm<\/strong> or <strong>Homebrew<\/strong>. Do not worry if you installed using npm already. For most developers, npm installation is simple and widely used.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">8. Use Codex Inside a Project<\/h2>\n\n\n\n<p>Create a test project:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mkdir ~\/codex-demo\ncd ~\/codex-demo\ngit init\n<\/code><\/pre>\n\n\n\n<p>Create a simple file:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cat &gt; app.py &lt;&lt;'EOF'\ndef add(a, b):\n    return a + b\n\nprint(add(2, 3))\nEOF\n<\/code><\/pre>\n\n\n\n<p>Commit your starting code:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>git add .\ngit commit -m \"Initial project before Codex\"\n<\/code><\/pre>\n\n\n\n<p>Now start Codex:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>codex\n<\/code><\/pre>\n\n\n\n<p>Try this prompt inside Codex:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Explain this project and suggest improvements. Do not edit files yet.\n<\/code><\/pre>\n\n\n\n<p>Another useful prompt:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Add basic error handling and comments to app.py. Show me the changes before finalizing.\n<\/code><\/pre>\n\n\n\n<p>After Codex makes changes, check:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>git diff\n<\/code><\/pre>\n\n\n\n<p>If changes look good:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>git add .\ngit commit -m \"Update code using Codex\"\n<\/code><\/pre>\n\n\n\n<p>If you want to discard changes:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>git restore .\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Part 2: Install Codex App on MacBook Air<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">9. Download Codex App for macOS<\/h2>\n\n\n\n<p>OpenAI provides a Codex desktop app for macOS. The Codex app documentation says it is available on macOS and Windows, and for Mac you should choose the <strong>Apple Silicon<\/strong> build unless you are using an Intel-based Mac. (<a href=\"https:\/\/developers.openai.com\/codex\/app?utm_source=chatgpt.com\">OpenAI Developers<\/a>)<\/p>\n\n\n\n<p>Go to the official Codex page from your Mac desktop browser:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>https:&#47;&#47;openai.com\/codex\/\n<\/code><\/pre>\n\n\n\n<p>or:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>https:&#47;&#47;developers.openai.com\/codex\/app\n<\/code><\/pre>\n\n\n\n<p>Choose:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Download for macOS \u2014 Apple Silicon\n<\/code><\/pre>\n\n\n\n<p>For your MacBook Air M-series, use <strong>Apple Silicon<\/strong>, not Intel.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">10. Install the Codex App<\/h2>\n\n\n\n<p>After downloading:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Open the downloaded <code>.dmg<\/code> file.<\/li>\n\n\n\n<li>Drag <strong>Codex<\/strong> into the <strong>Applications<\/strong> folder.<\/li>\n\n\n\n<li>Open <strong>Applications<\/strong>.<\/li>\n\n\n\n<li>Launch <strong>Codex<\/strong>.<\/li>\n\n\n\n<li>Sign in with your ChatGPT account or API key.<\/li>\n<\/ol>\n\n\n\n<p>OpenAI\u2019s getting-started page says the Codex app welcome screen allows users to continue with ChatGPT or enter an API key. (<a href=\"https:\/\/openai.com\/codex\/get-started\/?utm_source=chatgpt.com\">OpenAI<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">11. macOS Security Warning Fix<\/h2>\n\n\n\n<p>Sometimes macOS may show:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\"Codex\" cannot be opened because Apple cannot check it for malicious software.\n<\/code><\/pre>\n\n\n\n<p>To allow it:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>System Settings \u2192 Privacy &amp; Security \u2192 Open Anyway\n<\/code><\/pre>\n\n\n\n<p>Then open Codex again.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">12. How to Use Codex App<\/h2>\n\n\n\n<p>After opening Codex app:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Sign in.<\/li>\n\n\n\n<li>Open or connect a project folder.<\/li>\n\n\n\n<li>Ask Codex to inspect, modify, or review code.<\/li>\n\n\n\n<li>Review the generated diff.<\/li>\n\n\n\n<li>Accept or reject changes.<\/li>\n<\/ol>\n\n\n\n<p>Useful prompts:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Review this project and explain the folder structure.\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Find security issues in this Laravel application.\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Create a README file for this project.\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Refactor this code but keep the existing behavior unchanged.\n<\/code><\/pre>\n\n\n\n<p>The Codex app is designed as a visual command center for managing coding agents, reviewing diffs, and working on longer coding tasks. (<a href=\"https:\/\/openai.com\/index\/introducing-the-codex-app\/?utm_source=chatgpt.com\">OpenAI<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Part 3: Optional \u2014 Use Codex with VS Code<\/h1>\n\n\n\n<p>If you use VS Code, you can use Codex inside your editor. OpenAI says the Codex VS Code extension is compatible with VS Code and many VS Code forks, and for other IDEs you can run Codex CLI inside the IDE terminal. (<a href=\"https:\/\/help.openai.com\/en\/articles\/11369540-using-codex-with-your-chatgpt-plan?utm_source=chatgpt.com\">OpenAI Help Center<\/a>)<\/p>\n\n\n\n<p>Install VS Code:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>brew install --cask visual-studio-code\n<\/code><\/pre>\n\n\n\n<p>Open your project:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cd ~\/codex-demo\ncode .\n<\/code><\/pre>\n\n\n\n<p>Then you can run Codex inside VS Code terminal:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>codex\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Part 4: Common Errors and Fixes<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Error 1: <code>npm: command not found<\/code><\/h2>\n\n\n\n<p>Reason: Node.js is not installed.<\/p>\n\n\n\n<p>Fix:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>brew install node\n<\/code><\/pre>\n\n\n\n<p>Verify:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>node -v\nnpm -v\n<\/code><\/pre>\n\n\n\n<p>Then install Codex:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm i -g @openai\/codex\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Error 2: <code>brew: command not found<\/code><\/h2>\n\n\n\n<p>Reason: Homebrew is not installed or PATH is not configured.<\/p>\n\n\n\n<p>Fix:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/bin\/bash -c \"$(curl -fsSL https:\/\/raw.githubusercontent.com\/Homebrew\/install\/HEAD\/install.sh)\"\n<\/code><\/pre>\n\n\n\n<p>Then:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>echo 'eval \"$(\/opt\/homebrew\/bin\/brew shellenv)\"' &gt;&gt; ~\/.zprofile\neval \"$(\/opt\/homebrew\/bin\/brew shellenv)\"\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Error 3: <code>codex: command not found<\/code><\/h2>\n\n\n\n<p>Reason: Codex installed, but global npm path is not available.<\/p>\n\n\n\n<p>Check npm global path:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm bin -g\n<\/code><\/pre>\n\n\n\n<p>Check where Codex is installed:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>which codex\n<\/code><\/pre>\n\n\n\n<p>Try reinstalling:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm uninstall -g @openai\/codex\nnpm i -g @openai\/codex\n<\/code><\/pre>\n\n\n\n<p>Restart Terminal and run:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>codex\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Error 4: Permission error during npm install<\/h2>\n\n\n\n<p>Avoid using <code>sudo<\/code> unless absolutely necessary.<\/p>\n\n\n\n<p>Try:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mkdir ~\/.npm-global\nnpm config set prefix '~\/.npm-global'\necho 'export PATH=~\/.npm-global\/bin:$PATH' &gt;&gt; ~\/.zprofile\nsource ~\/.zprofile\nnpm i -g @openai\/codex\n<\/code><\/pre>\n\n\n\n<p>Then:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>codex\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Error 5: Bubblewrap warning<\/h2>\n\n\n\n<p>You may see something like:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Codex could not find bubblewrap on PATH.\n<\/code><\/pre>\n\n\n\n<p>On macOS, this is usually not something you need to fix manually. Bubblewrap is mainly a Linux sandboxing tool. If Codex continues running, you can ignore it.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Part 5: Recommended Safe Workflow<\/h1>\n\n\n\n<p>Because Codex can edit your files, always use Git.<\/p>\n\n\n\n<p>Before using Codex:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>git status\ngit add .\ngit commit -m \"Before Codex changes\"\n<\/code><\/pre>\n\n\n\n<p>Run Codex:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>codex\n<\/code><\/pre>\n\n\n\n<p>After Codex finishes:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>git diff\n<\/code><\/pre>\n\n\n\n<p>If good:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>git add .\ngit commit -m \"Codex changes\"\n<\/code><\/pre>\n\n\n\n<p>If bad:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>git restore .\n<\/code><\/pre>\n\n\n\n<p>OpenAI\u2019s quickstart also recommends using Git checkpoints because Codex can modify your codebase. (<a href=\"https:\/\/developers.openai.com\/codex\/quickstart?utm_source=chatgpt.com\">OpenAI Developers<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Part 6: Best Prompts for Beginners<\/h1>\n\n\n\n<p>Use clear instructions.<\/p>\n\n\n\n<p>Good examples:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Explain this codebase like I am a beginner.\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Find bugs but do not change any files.\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Create a plan before editing code.\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Make the smallest possible change to fix this issue.\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Update this Laravel controller but keep all existing logic.\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Review the security of this API route.\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Write tests for this function.\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Show me the diff before I accept the changes.\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Final Recommended Installation Commands<\/h1>\n\n\n\n<p>For most MacBook Air users, this is the clean full setup:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Install Homebrew\n\/bin\/bash -c \"$(curl -fsSL https:\/\/raw.githubusercontent.com\/Homebrew\/install\/HEAD\/install.sh)\"\n\n# Add Homebrew to PATH for Apple Silicon Mac\necho 'eval \"$(\/opt\/homebrew\/bin\/brew shellenv)\"' &gt;&gt; ~\/.zprofile\neval \"$(\/opt\/homebrew\/bin\/brew shellenv)\"\n\n# Install Git and Node.js\nbrew install git node\n\n# Install Codex CLI\nnpm i -g @openai\/codex\n\n# Verify\nnode -v\nnpm -v\ngit --version\ncodex --version\n\n# Start Codex\ncodex\n<\/code><\/pre>\n\n\n\n<p>For the app version:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Download Codex App \u2192 choose macOS Apple Silicon \u2192 install \u2192 open \u2192 sign in \u2192 open project \u2192 start coding\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>On a MacBook Air, Codex can be installed in two ways. The <strong>Codex CLI<\/strong> is best for developers who like Terminal and want to work directly inside project folders. The <strong>Codex App<\/strong> is best for users who prefer a visual interface, project overview, diffs, and agent-based workflows.<\/p>\n\n\n\n<p>For the best setup, install both:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Codex CLI + Codex App + Git + VS Code\n<\/code><\/pre>\n\n\n\n<p>This gives you a complete AI coding environment on your MacBook Air.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Codex is OpenAI\u2019s AI coding agent that helps developers understand code, modify projects, review changes, debug issues, and work inside [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2972","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/aiopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/2972","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aiopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aiopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aiopsschool.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/aiopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=2972"}],"version-history":[{"count":1,"href":"https:\/\/aiopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/2972\/revisions"}],"predecessor-version":[{"id":2973,"href":"https:\/\/aiopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/2972\/revisions\/2973"}],"wp:attachment":[{"href":"https:\/\/aiopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=2972"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aiopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=2972"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aiopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=2972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}