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DevHacker Noonabout 5 hours ago
Global Low-Latency App Without BackendChartMini, a browser-based trading practice tool, achieves P99 under 200 ms globally without a traditional backend. The stack uses SvelteKit compiled to Bun, deployed across multiple Fly.io regions. Price data lives in read-only SQLite files replicated via Litestream. A single Postgres handles minimal state. The entire infrastructure bill stays under four figures.
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