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Honest analysis of n8n self-hosted: advantages, risks, security, maintenance, and cases where I would not use it.

Limits of low-code tools like n8n: when to automate and when to write real software.

How to integrate an LLM into a real backend: layered architecture, provider abstraction, limits, errors, costs, and tests.

How to organize raw, staging, and marts layers in a real data pipeline. A practical follow-up to the ETL vs ELT article.