> For the complete documentation index, see [llms.txt](https://docs.function.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.function.network/function-network/using-function-network/run-a-node/configuration.md).

# Configuration

The Function node uses a set of configuration files located in the `~/.fxn` directory in your user's home folder.

* `config.yaml`: The main configuration file for the node server.
* `model_backend.yaml`: Configuration for the model backend
* `nodekey.json`: Stores your node's private key.

## Starting the Node

You can start the node using:

```bash
fxn start
```

`nodekey.json` will created for you upon start if it wasn't created before.

### Text-based User Interface (TUI)

For a more interactive experience with easier debugging and state monitoring, you can start the node with a Text-based User Interface (TUI):

```bash
fxn start --tui
```

## Account Management

Before starting a node, you need to generate a node key. This key is used to identify your node on the Function Network.

### Creating a New Account

To generate a new node key, run the following command:

```bash
fxn account new
```

This command will create a `nodekey.json` file in your `~/.fxn` directory.

### Viewing Your Account

To display your existing node key and address, use:

```bash
fxn account show
```

## Configuration Details

For a detailed breakdown of the configuration options, please see the following sections:

* [Node](/function-network/using-function-network/run-a-node/configuration/config.md)
* [Model Backend](/function-network/using-function-network/run-a-node/configuration/model-backend.md)