Any WPENV_ prefixed variables in the .env will be used to override the WordPress options. For example, if you’d like to set a specific environment to “Discourage search engines from indexing this site”, you can add WPENV_BLOG_PUBLIC=0 to your .env file.
Any option in the wp_options table or retrieved by get_option() can be set this way.
You can define keys either as WPENV_BLOGDESCRIPTION or as WPENV_blogdescription, both will work.
If you’d like to define the location of your .env file, rather than the plugin looking for it, you can filter dotenv_location to be a directory path.
You can also change the WPENV_ prefix by filtering dotev_key_prefix to be a different prefix.