SQLite can now run at the edge - inside Cloudflare Workers via D1, on Fly.io via LiteFS replicated volumes, and in any V8 isolate through embedded WASM builds. This gives you sub-millisecond read queries by placing your database physically close to your users on a global CDN. The key innovations that made this practical are LiteFS for transparent SQLite replication across distributed nodes, Cloudflare D1 as a managed edge SQLite service, Turso with its libSQL fork adding server mode and built-in replication, and Litestream for continuous WAL-based streaming to S3. Combined with SQLite’s zero-dependency, single-file architecture, you get a relational database that deploys as part of your application binary, needs no connection pooling, and handles thousands of reads per second per node with microsecond-level latency.