
I Have Been Scanning My Mail for More Than Ten Years
I have scanned almost every letter for more than ten years. Today I ask my archive a question and receive the answer together with its source.

SERIES · 9 PARTS
Nine chapters about turning more than ten years of scanned mail into a local, searchable archive with verifiable answers.

I have scanned almost every letter for more than ten years. Today I ask my archive a question and receive the answer together with its source.

Insurance policies, contracts and tax assessments: I wanted them searchable, but I did not want them to leave my network. That was the first decision.

What happens when the NAS disappears for a moment? How Operus Search watches my folders, picks up new letters and avoids forgetting anything prematurely.

A scanned letter looks perfectly readable yet may not contain a single word for a search engine. Text recognition is what makes my archive searchable.

Operus Search is a search engine first. Full-text search works without a language model — and reveals where its limits lie.

Instead of guessing search terms, I ask my archive an ordinary question — and receive an answer together with the letter it came from.

Who did I spend the most with in 2024? The answer is spread across many letters. Why AI may understand the question but should not do the arithmetic itself.

Quotation against invoice, old contract against new, warranty against statutory rights: how a strictly limited research assistant compares letters.

More than ten years of scanned mail — and today my archive answers questions. Locally, with verifiable sources and clear boundaries.