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Building a Multi-Stage ETL That Doesn't Lose Work Under Failure with NATS JetStream tutorial thumbnail
Python Automationcategory

Building a Multi-Stage ETL That Doesn't Lose Work Under Failure with NATS JetStream

A walkthrough of the backpressure-aware ingestion pipeline in EvidenceLens: durable consumers, manual acknowledgment, how a 60-second ack_wait caused a redelivery storm under load, and a backpressure loop that pauses consumption when the downstream indexer falls behind.

Intermediate
25 minutes
Aug 5, 2026
PythonGoNATSJetStream +2 more
EvidenceLens: A Self-Hosted Biomedical Search Engine with Hybrid Ranking and Conflict-of-Interest Transparency project thumbnail
Web Developmentcategory Generative AIcategory Python Automationcategory Biomedical Engineeringcategory

EvidenceLens: A Self-Hosted Biomedical Search Engine with Hybrid Ranking and Conflict-of-Interest Transparency

EvidenceLens unifies 20+ fragmented medical literature sources into a single hybrid-ranked interface, surfaces author conflict-of-interest badges from public CMS Open Payments data, and runs answer synthesis entirely on the user's own inference key — zero recurring backend cost.

GoPythonTypeScriptNestJS +11 more
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