## Documentation Index

Fetch the complete documentation index at: [https://docs.subtrace.dev/docs/llms.txt](https://docs.subtrace.dev/docs/llms.txt)

Use this file to discover all available pages before exploring further.

For this guide, we’ll use a minimal Next.js app as an example, but any Next.js app should work fine.

You can find the complete source code used in this demo [here](https://github.com/subtrace/nextjs-demo). To get started, download the latest version of Subtrace using the following command:

```
curl -fsSL https://subtrace.dev/install.sh | sh
```

Then get a `SUBTRACE_TOKEN` from the Subtrace [dashboard](/content/dashboard/index.html) for free and set it as an environment variable.

```
# get a tracer token for free at https://subtrace.dev/dashboard
export SUBTRACE_TOKEN=
```

Build and start your server using Subtrace:

```
npm install
subtrace run -- npm run dev
```

That’s it! You can now visit [localhost:3000](localhost:3000) to see them automatically appear in the Subtrace [dashboard](/content/dashboard/index.html) in realtime.

[Express.js](/content/docs/nodejs-express/index.html) [SvelteKit](/content/docs/sveltekit/index.html)