Backend Engineering
Migrating a Node.js API to FastAPI: A Real Cost/Benefit Breakdown
An honest cost/benefit ledger from migrating production Node.js APIs to FastAPI for AI-heavy workloads — timeline, team ramp-up, and where it wasn't the right call.
Sachin SharmaCreator
Jul 8, 2026
6 min read
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An honest cost/benefit ledger from migrating production Node.js APIs to FastAPI for AI-heavy workloads — timeline, team ramp-up, and where it wasn't the right call.
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Synthetic Data Generation for Fine-Tuning Specialist Models
Real labeled data for a narrow task is often scarce, expensive, or both. Generating it synthetically works — but only if you take the quality filtering and diversity steps as seriously as the generation itself.
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Building a Model Router: Picking the Cheapest Model That Still Works
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