Config file deployments are straightforward in both theory and practice. 

It's the idea of deploying only your <a href="https://www.deployhq.com/support/config-files" target="_blank">config files</a> whenever you need to change a configuration in your environment, without the need of performing a full deployment, or waiting for the next deployment cycle in your roadmap.

These deployments can be done in the same manner as a regular deployment. Just go into your project of choice, and once you have your config file ready for deployment, click on the "**New Config File Deployment**", and select the server group to which you wish to deploy. 

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And that's it! The config files are transferred to your servers without the need of transferring anything else.