> For the complete documentation index, see [llms.txt](https://docs.a11n.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.a11n.io/tutorial/getting-set-up/build-and-run-app.md).

# Build and run app

Change to the cloned project directory and open two tabs.

In the first tab change to the folder './backend/go'.

Copy the '.env.example' file to '.env' and change the JWT\_SECRET variable to your own secret.

Then start the app with docker:

```
docker-compose build
docker-compose up
```

This will start up the backend, listening on port 8081

In the second tab change to the folder './frontend/react', and start the app with npm:

```
npm start
```

This will start the react frontend on port 3001

Open a browser and navigate to <localhost:3001>

Register a user, and start playing around in the app to get a feeling for how it works.