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

# post_build_cmds

> The `post_build_cmds` key defines custom actions

## Overview

```yaml alto.yml theme={null}
...
post_build_cmds:
  - "sudo yum install gcc"
  ...
```

The `post_build_cmds` key should contain any custom actions to perform within your
infrastructure build (e.g., installing additional Linux packages).