# Remix from Github

Kickstart your project from an existing extension on Github.

## Find an extension to remix

We’ve published several open-source Interface Extensions that you can use as a starting point. Browse them here: [Airtable Interface Extensions on GitHub](https://github.com/orgs/Airtable/repositories?type=all&q=interface-extensions)

Each repo contains a working example built with the Blocks SDK. You’re free to clone, run, and modify any of them.

## Set it up locally

Once you’ve found a repo you want to remix, follow the same setup steps as in the ["Hello, world" tutorial](https://airtable.com/developers/interface-extensions/guides/hello-world-tutorial.md).
When you reach the **Initialize your extension** step, replace the `block init` command with the GitHub URL of the extension you’re remixing.

For example:

```
block init NONE/<your-extension-id> --template=https://github.com/Airtable/interface-extensions-sliding-bar-chart my-extension-name
```

Everything else—running the extension locally and enabling development mode—remains the same.

## Make it your own

Once your extension is running, dive into the code and start customizing. Update the layout, logic, or data to fit your needs.

When you're ready, release your version using the CLI and add it to other bases across your organization.