> ## Documentation Index
> Fetch the complete documentation index at: https://baseten-philip-copy-0226.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Config options

> Set your model resources, dependencies, and more

Truss is configurable to its core. Every Truss must include a file config.yaml in its root directory, which is automatically generated when the Truss is created. However, configuration is optional. Every configurable value has a sensible default, and a completely empty config file is valid.

<Accordion title="YAML syntax help">
  YAML syntax can be a bit non-obvious when dealing with empty lists and dictionaries. You may notice the following in the default Truss config file:

  ```yaml
  requirements: []
  secrets: {}
  ```

  When you fill them in with values, lists and dictionaries should look like this:

  ```yaml
  requirements:
    - dep1
    - dep2
  secrets:
    key1: default_value1
    key2: default_value2
  ```
</Accordion>

## Example

Here's an example config file for a Truss that uses the [WizardLM](https://huggingface.co/WizardLM/WizardLM-7B-V1.0) model:

```yaml WizardLM config
description: An instruction-following LLM Using Evol-Instruct.
environment_variables: {}
model_name: WizardLM
requirements:
- accelerate==0.20.3
- bitsandbytes==0.39.1
- peft==0.3.0
- protobuf==4.23.3
- sentencepiece==0.1.99
- torch==2.0.1
- transformers==4.30.2
resources:
  cpu: "3"
  memory: 14Gi
  use_gpu: true
  accelerator: A10G
secrets: {}
system_packages: []
```

## Full config reference

<Snippet file="config-params.mdx" />