How I Locked Down a Static Site with Lambda@Edge and Cognito (No Backend Required)

Your internal docs are wide open. That Docusaurus site you deployed to S3? The one with your API specs, runbooks, onboarding guides? Anyone with the URL can read it. S3 + CloudFront gives you HTTPS, caching, and global distribution out of the box. What it doesn't give you is a login page. Most teams solve this by moving docs to a platform (Notion, Confluence, whatever) and giving up control. Or they shove everything behind a VPN and call it a day. Both options work. Both have trade-offs that g...