How to Use GitHub Copilot to Write Your First Application in 1 Hour

If you're a solo founder or indie hacker, you know that time is often your most precious resource. Learning to code can feel like a monumental task, especially if you're just trying to build that first application. But what if I told you that you could leverage AI to speed up the process? In this guide, we'll show you how to use GitHub Copilot to write your first application in just one hour.

Prerequisites: Setting the Stage

Before diving in, you'll need a few things:

1. GitHub Account: Sign up for free if you don't have one.
2. Visual Studio Code (VS Code): Download and install the latest version.
3. GitHub Copilot Subscription: As of August 2026, GitHub Copilot costs $10/month or $100/year. It offers a free trial for 30 days, so you can test it out without any upfront cost.
4. Basic Understanding of JavaScript: While Copilot can help you with code, having a foundational understanding will make the process smoother.

Step 1: Set Up Your Environment (10 Minutes)

1. Install Visual Studio Code: Make sure you have it installed and updated.
2. Install GitHub Copilot: Open VS Code, go to the Extensions view (Ctrl+Shift+X), and search for "GitHub Copilot" to install it.
3. Sign In: After installation, sign in with your GitHub account to activate Copilot.

Expected output: You should see Copilot's suggestions as you type in VS Code.

Step 2: Create a New Project (10 Minutes)

1. Open a New Folder in VS Code where your project will reside.
2. Create a New File: Name it app.js for a simple JavaScript application.
3. Initialize npm: Open the terminal (Ctrl+) and run npm init -y` to create a package.json file.

Expected output: A new folder with app.js and package.json created.

Step 3: Write Your Application (30 Minutes)

Now, let's start coding. For this example, we'll create a simple to-do list application.

1. Define Your Structure: Begin by defining what your application should do. For instance, it should allow users to add and remove tasks.

2. Start Coding: Begin typing comments in your app.js file, and Copilot will suggest code snippets.

   // Create an array to hold tasks
   const tasks = [];
   
   // Function to add a task
   function addTask(task) {
       tasks.push(task);
       console.log(`Task added: ${task}`);
   }
   

3. Iterate on Suggestions: You can accept, reject, or modify Copilot's suggestions. For example, if you type a comment like // Function to remove a task, Copilot will suggest the corresponding function.

4. Build the User Interface: You can also ask Copilot to generate HTML and CSS. Just type:

   // Create a simple HTML structure
   

   Copilot will suggest a basic HTML template.

Expected output: A basic to-do list application that can add and remove tasks.

Step 4: Test Your Application (5 Minutes)

1. Run Your Application: Use the terminal to run your application using Node.js with the command node app.js.
2. Check for Errors: If there are any errors, Copilot can help you debug by providing suggestions based on the error messages.

Expected output: Your application should run without issues, displaying added tasks in the console.

Troubleshooting: What Could Go Wrong

1. Syntax Errors: If Copilot suggests something that doesn’t work, double-check the syntax.
2. Missing Dependencies: If you need external libraries (like Express for a web app), you can easily install them using npm, and Copilot will help you integrate them.

What's Next: Building Beyond the Basics

Now that you have a simple application up and running, consider the following steps:

1. Add Persistence: Integrate a database (like MongoDB) to store tasks.
2. Build a User Interface: Use frameworks like React or Vue.js to make your app more interactive.
3. Deploy Your Application: Use platforms like Heroku or Vercel for deployment.

Conclusion: Start Here

Using GitHub Copilot can drastically cut down the time it takes to build your first application. With just an hour, you can create something functional and start iterating on it. The key is to have a clear idea of what you want to build and let Copilot assist you along the way.

In our experience, the combination of Copilot's suggestions with a basic coding understanding can lead you to surprising results. So, grab your laptop, set up your environment, and give it a shot!