Moving Baselime from AWS to Cloudflare: simpler architecture, improved performance, over 80% lower cloud costs

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Baselime migrated its observability platform from AWS to Cloudflare, rebuilding its data pipeline on Cloudflare Workers, Durable Objects, and Workers Analytics Engine. This resulted in a simplified architecture, improved performance (lower latency), enhanced scalability and reliability, and over 80% cost reduction. Key technical changes include using JavaScript-native RPC for inter-component communication, leveraging Durable Objects for stateful processing (error tracking, pattern detection, alerting), and utilizing Workers Analytics Engine with ABR analytics for high-cardinality data analysis. The migration also involved transitioning from AWS EventBridge and SQS to Cloudflare Queues using the strangler fig pattern.