All posts.
Every EasySpawn article, newest first — deploying AI-built apps, Claude Code, databases, security, and the infrastructure underneath.
422 posts · page 9 of 18
Claude Code vs GitHub Copilot: What's the Difference?
GitHub Copilot started as autocomplete and grew into agents; Claude Code started as an agent. How they compare on workflow, models, GitHub integration and pricing — and why Copilot can even run Claude for you.
Claude Code vs Cursor: Which Should You Use in 2026?
Cursor is an AI code editor; Claude Code is an AI agent that runs in your terminal, IDE, desktop app or browser. How they differ in workflow, models, pricing and where they run — and why plenty of people use both.
Claude Code vs OpenAI Codex: An Honest Comparison
Claude Code and OpenAI's Codex are the two big terminal-first coding agents. How they compare on where they run, which plans include them, models, cloud tasks and day-to-day workflow — without picking a winner for you.
Claude Code Tutorial for Beginners: Build Your First App, Step by Step
A start-to-finish Claude Code tutorial for complete beginners: set up a project folder, write a CLAUDE.md, plan before building, review changes, run the app, fix errors, commit with git, and avoid the mistakes most first-timers make.
Claude Code GitHub Actions: Set Up @claude on Issues and Pull Requests
How to set up the Claude Code GitHub Action so you can mention @claude on issues and PRs: quick setup with /install-github-app, manual setup, API key vs subscription token, interactive vs automation mode, scheduled runs, cost controls, and security.
Claude Code /compact vs /clear: Managing Context Without Losing Your Place
When to compact, when to clear, and when to let auto-compaction handle it. What /compact actually does, custom compaction instructions, the auto-compact window and /autocompact, why compacting a huge session is itself expensive, and a workflow that keeps sessions sharp.
How to Change the Model in Claude Code (and Which One to Pick)
Switch models in Claude Code with /model, the --model flag, an environment variable or settings.json. What the aliases mean — opus, sonnet, haiku, fable, opusplan, [1m] — which is the default, and how to choose for cost and quality.
"Cannot Read Properties of Undefined": What It Means and How to Fix It
The most common JavaScript error, explained for beginners: what "TypeError: Cannot read properties of undefined (reading 'map')" means, the five usual causes, how to find the exact line, and the right fixes — not just sprinkling ?. everywhere.
Async/Await in JavaScript, Explained Simply (With the Mistakes AI Code Makes)
Why some JavaScript code has to wait, what a Promise is, how async and await work, how to handle errors, how to run things in parallel, and the common async bugs — like the missing await — that show up in AI-generated code.
How to Add a Favicon to Your Website (HTML, Next.js, and Vite)
The small set of favicon files a modern site actually needs, the HTML tags to add, the Next.js and Vite shortcuts, the sizes Google and iPhones use, and why your new favicon still isn't showing.
How to Add a CAPTCHA to Your Forms (Cloudflare Turnstile, reCAPTCHA, hCaptcha)
Stop bots spamming your signup, login and contact forms. How modern CAPTCHAs work, Turnstile vs reCAPTCHA vs hCaptcha, a working Cloudflare Turnstile example with the server-side check most tutorials forget, and when a CAPTCHA isn't the right tool.
How to Add an AI Chatbot to Your App (Without Leaking Your API Key)
A beginner-friendly guide to adding an AI chat feature: the safe architecture, a working Next.js backend route that streams Claude's replies, the frontend code to display them, and the limits, costs and abuse protection you need before launch.
Why Refreshing Your React Page Gives a 404 (and How to Fix It on Any Host)
Your single-page app works when you click around but shows 404 Not Found when you refresh or share a link. Why client-side routing causes it, and the exact fix for Nginx, Caddy, Netlify, Vercel, GitHub Pages and Express.
Zero-Downtime Deploys for a Small App
You don't need Kubernetes to deploy without dropping requests. What actually causes downtime during a deploy — stopping before starting, no health checks, killed requests, and database changes the old code can't handle — and the four practices that fix each one.
What Is XSS? Cross-Site Scripting Explained for Beginners
Cross-site scripting lets an attacker run their JavaScript in your users' browsers — stealing sessions, changing pages, acting as the user. How XSS works, the three types, why React mostly protects you, the escape hatches that don't, and the defences that matter.
Getting AI to Write Tests That Actually Catch Bugs
Ask an AI for tests and you'll get plenty: tests that mock everything, assert nothing useful, and pass no matter what the code does. How to get tests that fail when behaviour breaks — what to test, how to prompt, how to check a test is real, and how tests become the agent's safety net.
How to Write Good Commit Messages (and Why It Matters With AI)
'fix', 'update', and 'wip' tell you nothing six months later. What a commit message is for, the simple format most teams use, examples of good and bad messages, how often to commit when an AI tool is making the changes, and how to get Claude Code to write useful ones.
How to Write a README for Your Project
The README is the front page of your project — for collaborators, clients, future you, and AI tools that read it for context. What to include, a template you can copy, how it differs from a CLAUDE.md, and the mistakes that make READMEs useless.
How to Write a Good Bug Report (for Humans and AI Tools)
'It's broken' can't be fixed. 'On /checkout, clicking Pay with an empty cart returns a 500' can. The five parts of a useful bug report, how to find reproduction steps, what evidence to attach, and a template you can paste into GitHub issues or your AI coding tool.
Why Is My Website Slow? A Beginner's Guide to Finding Out
Slow sites lose visitors. How to measure speed properly, what Core Web Vitals mean, and the usual culprits in AI-built apps — huge images, too much JavaScript, slow database queries, waterfalls of API calls, and a server far from your users — with a fix for each.
Why Does My App Work Locally but Not in Production?
The app runs perfectly on your machine and breaks the moment it's deployed. It's almost always one of about a dozen causes — missing environment variables, localhost URLs, a filesystem that doesn't persist. How to find which one, in the order most likely to be it.
Where Should User Uploads Go? Object Storage Explained
Profile photos that vanish after a deploy, a database bloated with images, a public bucket full of private documents. Where uploaded files should live, how object storage works, and the three decisions — public or private, who uploads, and how files are served — that keep uploads fast and safe.
What Is Web Hosting? A Plain-English Guide for First-Time App Builders
Your app has to run on a computer that's always on and connected to the internet. That's hosting. The main kinds — static hosting, app hosting, servers you manage, and managed platforms — what each is for, and how to tell which one your app needs.
What Is Vibe Coding? What It's Great For, and Where It Breaks
Vibe coding means building software by describing what you want to an AI and accepting what it produces, often without reading the code. It's genuinely powerful for some things and genuinely risky for others. An honest guide to where the line is.