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One chronological stream for articles, diary entries, and short learning notes. Development samples are clearly labelled inside each entry.

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September 2026 August 2026

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Saturday 12 September 2026

A first note from the rebuilt KenChen.info, clearly marked as sample content.

diary · 1 min · site-building · Permalink

Tuesday 8 September 2026

A practical framework for choosing transformation tools without treating either as a religion.

article · 1 min · data-engineering, pyspark, sql · Permalink

Thursday 3 September 2026

A compact reminder that ownership and failure behaviour belong beside the schema.

note · 1 min · learning, data-engineering · Permalink