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Tutorials, guides, explainers and career articles — organised into franchises so you can follow one thread rather than a feed.
Why Your RAG Evaluation Is Wrong
Most RAG evaluations measure the wrong thing, on the wrong data, with a judge that rewards the wrong behaviour. Here is what to measure instead.
Why Most Backtests Lie
Backtests fail in a consistent direction — optimistic. Here are the five structural reasons, with a detection method for each. Educational research only.
Power BI Developer to Fabric Engineer: A Roadmap
A staged plan for moving from report development into platform engineering on Microsoft Fabric — including an honest read on which existing skills carry over.
DuckDB vs pandas vs Polars: When Each One Wins
A practical decision guide based on workload shape rather than benchmark scores — because the fastest tool depends on what you are actually doing.
The Analytics Portfolio That Actually Gets Interviews
Three real projects beat thirty notebooks. What hiring managers screen for, and the structure that survives a five-minute skim.
Automation That Survives Monday Morning
Most business automations break quietly within a month. Idempotency, error handling and observability are what separate a demo from a system.
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