Ubunatic Coding
Books ยท Decks ยท Research

The Ubunatic Library

Books, slide decks, and research by Uwe Jugel โ€” written with agents, verified like code, and built entirely offline.

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โฆ The Shelf

Two mdBooks, two voices: a playbook and a chronicle. Pick one up.

Click a book to sit down with it โ€” or use โ† โ†’ and Enter, Esc to put it back.

โฆ Reference & Templates

The theme reference and starter template behind this library.

template

The Style Codex

Every callout, table, figure, and ornament, with markup to copy and goldens that keep it honest.

โฆ The Deck Drawer

The books, compressed to slides โ€” premium single-page HTML decks, compiled from the same markdown sources.

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The Solo Fleet, Reviewed

CLI-first & local-first โ€” strengths, limits, and what companies should steal

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Agentic Development Manifesto

Core principles for co-creating software with AI

โฆ The Research Wing

Before the agentic era: a doctorate on one stubborn question โ€” why send a million rows to a chart that is 400 pixels wide? The paper and the thesis now live on this shelf, each with its own deck; the journal version remains at its publisher.

Best of VLDB 2014

M4: A Visualization-Oriented Time Series Data Aggregation

PVLDB 7(10), 2014 ยท Jugel, Jerzak, Hackenbroich, Markl

Four tuples per pixel column โ€” min, max, first, last โ€” are enough for a pixel-perfect line chart. Data reduced by orders of magnitude, error: zero.

Live demo โ†’ Play deck Paper (PDF)

VDDA: Visualization-Driven Data Aggregation in Relational Databases

The VLDB Journal 25(1), 2016 ยท invited extended version

The full theory: data reduction operators that mimic the overplotting of every common chart type โ€” in plain relational algebra, on any RDBMS.

Live demo โ†’ Play deck Article โ†—

Visualization-Driven Data Aggregation

Dr.-Ing. thesis ยท data management & visualization

Rethinking data acquisition for visualization systems: let the chart tell the database what it can actually show.

Play deck โ†’ Thesis (PDF)