Infrastructure & DevOps
8 guides publishedDNS, VPS, SSH, Docker, nginx, CI/CD — getting your apps from localhost to the real internet. The stuff AI builds but rarely explains how to operate.
Start Here: The Basics
What Is an Environment Variable?
Secrets explained for AI builders — .env files, process.env, and why your API keys should NEVER be in your code. The #1 security mistake.
🌐 DNSWhat Is DNS?
How domain names actually work for vibe coders — A records, CNAME, nameservers, and why your site shows "DNS_PROBE_FINISHED_NXDOMAIN."
🖥️ HostingWhat Is a VPS?
Virtual private servers explained for AI coders — why you'd use DigitalOcean or Hetzner instead of Vercel, and what you get for $5/month.
Containers & Deployment
What Is Docker?
Containers explained for AI coders — Dockerfile, docker-compose, images, and why "it works on my machine" is no longer an excuse.
⚙️ AutomationWhat Is CI/CD?
Continuous integration and deployment for AI coders — GitHub Actions, automated tests, and how to go from git push to live site automatically.
🌍 PerformanceWhat Is a CDN?
Content delivery networks explained — why Cloudflare makes your site load faster everywhere, and why AI often includes CDN setup in production configs.
Servers & Access
What Is nginx?
The web server and reverse proxy explained — serving static files, proxying to Node.js, and reading the nginx configs AI generates.
🔒 SSHWhat Is SSH?
Connecting to remote servers explained for AI coders — key pairs, ssh-keygen, ssh-copy-id, and why "Permission denied (publickey)" happens.
Essential Dev Tools
Git, GitHub, terminal commands — the toolkit every builder needs.