# Check in: Unit 1 - Setup

> Tutorial: Build your first Astro blog —
Prepare your development environment, and create and deploy your first Astro site

Now that you know what you’re going to build, it’s time to set up all the tools you’ll need!

This unit shows you how to set up your development environment and deploy to Netlify. Skip ahead to [Unit 2](/en/tutorial/2-pages/) if you are already comfortable with your environment and workflow.

Take the tutorial in an online code editor

Want to complete this tutorial in an online code editor instead? Follow the instructions below for getting started on Google IDX.

Using Google IDX: Follow these instructions, then go directly to Unit 2!

**Set up IDX**

1. Follow the external link to [open the “Empty Project” template in a new workspace on IDX](https://astro.new/minimal?on=idx).

2. Follow the prompt to log into your Google account if you are not already logged in.

3. Enter a name for your project if you want to change it from the default “Empty Project”. Click **Create**.

4. Wait for the workspace to be created. This may take 30 - 60 seconds. If all goes well, you will see the Astro project loaded in an online code editor.

5. Wait for IDX to run two scripts: one to install Astro and another to start the development server. Note that you may briefly see a message that your workspace “couldn’t find Astro” if your workspace loads before Astro has finished installing. This message can be ignored and cancelled if it does not clear itself.

**Make a Change**

If all goes well, you should see the code for the file `src/pages/index.astro` opened in split screen with a live preview of the website. Follow the instruction to [“Write your first line of Astro”](/en/tutorial/1-setup/3/) to make a change to this file.

**Create a GitHub Repository**

1. Navigate to the “Source Control” navigation item in the vertical menu bar, or open with `CTRL + SHIFT + G`.

2. Select the option to Publish to GitHub. This will create a new repository in your GitHub account.

3. Follow the prompts to sign in to your GitHub account.

4. Once you are signed in, return to the IDX tab and you will be given the choice to name your new repository, and whether you want to create a private or public repository. You can choose any name and either kind of repository for this tutorial.

5. IDX will make an initial commit and publish to your new GitHub repo.

6. Going forward, whenever you have changes to be committed back to GitHub, the Source Control navigation icon will show a number. This is the number of files that have changed since your last commit. Navigating to this tab and performing two steps (commit and publish) will allow you to enter a commit message, and update your repository.

**Deploy your Site**

If you’d like to deploy to Netlify, and have a live published version of your site while you work, go ahead in Unit 1 to [Deploy your site to the web](/en/tutorial/1-setup/5/).

Otherwise, skip to [Unit 2](/en/tutorial/2-pages/) to start building with Astro!

## Where are you going?

[Section titled “Where are you going?”](#where-are-you-going)

In this unit, you will **create a new project** that is **stored online in GitHub** and **connected to Netlify**.

As you write code, you will periodically commit your changes to GitHub. Netlify will use the files in your GitHub repository to build your website, and then publish it on the internet at a unique address where anyone can view it.

Every time you commit a change to GitHub, a notification will be sent to Netlify. Then, Netlify will automatically rebuild and republish your live site to reflect those changes.

## Checklist

[Section titled “Checklist”](#checklist)

* I’m ready to prepare a development environment for an Astro project!