Fly.io cooked up their own super-speedy system, Corrosion, to replicate SQLite globally in under a second! They ditched their old Consul setup because it just couldn't keep up with their massive network.
Corrosion, built with Rust, uses clever CRDTs and a gossip protocol to keep everything in sync without needing a central bottleneck. It's a total masterclass in building robust, high-performance distributed systems.
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