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AWS’s us-east-1 outage took down ChatGPT, Snapchat & Perplexity. The same happened in 2021: Netflix, Disney+, and Robinhood all went dark. The reason? Often a lack of true geo-replication. Here's how you can run apps with zero downtime during a region failure using Restate 🧵

Traditional geo-replication is brutally hard: - Complex distributed state management - Custom replication logic & conflict resolution - Leader election - Restructuring your entire application code It's an expert-level undertaking that costs companies months of engineering time.

With Restate, geo-replication is a deployment detail, not an application concern. Write normal business logic. Deploy across regions with one config line: 'default-replication = "{region: 2, node: 3}"'