Netlify provides a feature to manage environment variables, making it easier for developers to store configuration details and protect sensitive values. With the new functions for importing/exporting variables in .env format from the Netlify UI, users can move environment variables around in bulk, even if they need them to honor contextual variable values. The `netlify env` commands on the CLI allow for more control over managing variables, such as copying and pasting variables between sites, or using shared variables across all sites in a team. Additionally, owners on Pro accounts and above can set shared environment variables at Team Settings > Environment Variables, making it easier to manage configuration details across multiple sites.