# Configuration
The configuration is based on the file
-[defaults.hjson](https://yerbamate.dev/LemmyNet/lemmy/src/branch/master/server/config/defaults.hjson).
+[defaults.hjson](https://yerbamate.dev/LemmyNet/lemmy/src/branch/main/config/defaults.hjson).
This file also contains documentation for all the available options. To override the defaults, you
can copy the options you want to change into your local `config.hjson` file.
+To use a different `config.hjson` location than the current directory, set the environment variable `LEMMY_CONFIG_LOCATION`. Make sure you copy the `defaults.hjson` if you do this, otherwise you will be missing settings.
+
Additionally, you can override any config files with environment variables. These have the same
name as the config options, and are prefixed with `LEMMY_`. For example, you can override the
`database.password` with `LEMMY_DATABASE__POOL_SIZE=10`.