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Nginx Reverse Proxy With Free SSL on Ubuntu

Put Nginx in front of a Node.js app, then add free Let's Encrypt SSL with Certbot, an HTTPS redirect and automatic renewal.

PostgreSQL streaming replication with Docker Compose: one primary, three read-only replicas, deployable as a Portainer stack.

Replace hand-written useEffect fetching with TanStack Query: caching, loading states, mutations and cache invalidation.