> ## Documentation Index > Fetch the complete documentation index at: https://bruno-a6972042-docs-clustered-top-nav.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Environments in Generated Docs The generated documentation ships with the environments you chose to include, so readers can see real, resolved values instead of raw `{{var}}` placeholders. ## Switch Environments Use the topbar environment switcher to pick an active environment, and turn on **Show vars** to resolve `{{var}}` placeholders across URLs, headers, body, and code snippets. * Resolves collection and global variables against the active environment * Switch environments without reloading the page * Secret variables stay masked even when Show variables is on * Environment and toggle preferences persist for that docs file across refreshes environment support