Fly.io gave HashiCorp's Consul the boot because it couldn't scale, building their own speedy solution called Corrosion instead! This snazzy engine, built with Rust and SQLite, replicates data globally in less than a second.
It uses clever tech like CRDTs and the SWIM gossip protocol to keep everything in sync without a central leader, making for a super-resilient, eventually consistent distributed system.
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