Garajeando: 2026

Monday, October 12, 2026

Interesting Video: Save HOURS Of Work & Automate Your AI Agent's Feedback Loop

I've just watched this interesting video by Gojko Adzic

Save HOURS Of Work & Automate Your AI Agent's Feedback Loop

Interesting Podcaast: AI Skills with Matt Pocock

I've just watched this interesting interview with Matt Pocock on The Pragmatic Engineer channel

AI Skills with Matt Pocock

Interesting Podcast: The AI Resistance is Forming

I've just watched this interesting video by Cal Newport

The AI Resistance is Forming

Interesting Video: Why "Vibe Coding" is a Lie (And Startups are Paying the Price)

I've just watched this interesting video by Dave Farley

Why "Vibe Coding" is a Lie (And Startups are Paying the Price)

Wednesday, September 30, 2026

Books I read (January - September 2026)

January
- The Fraud, Zadie Smith
- Son de Mar, Manuel Vicent
- Alien Clay, Adrian Tchaikovsky
- Misterios de Madrid, Antonio Muñoz Molina
- Simple Rules: How to Thrive in a Complex World, Donald Sull, Kathleen M. Eisenhardt
- The war of art, Steven Pressfield
- Solving the procrastination puzzle, Timothy A. Pychyl

February
- Ava en la noche, Manuel Vicent
- Dream Count, Chimamanda Ngozi Adichie
- Saturday night and Sunday morning, Alan Sillitoe
- Vibe Coding, Gene Kim, Steve Yegge

March
- Conscious Coaching: The Art and Science of Building Buy-In, Brett Bartholomew
- How to Understand Almost Anything: A Practitioner's Guide to Domain Analysis, Markus Voelter
- Last and First Men: A Story of the Near and Far Future, Olaf Stapledon

April
- Architecting for Scale 2nd Edition, Lee Atchison
- Birthday, Alan Sillitoe

May
- Shroud, Adrian Tchaikovsky
- El primer siglo después de Beatrice (Le premier siècle apès Beatrice), Amin Maalouf
- Methuselah's children, Robert A. Heinlein
- Extremophile, Ian Green
- Understanding Distributed Systems 2nd Edition, Roberto Vitillo

June
- Las escalas de Levante (Les Échelles du Levant), Amin Maalouf
- AI changes the Tools, you still own the Craft, Hoang Nguyen
- Nonstop, Brian Aldiss
- Earth abides, George R. Stewart
- Babel-17, Samuel R. Delany
- Halcyon Years, Alastair Reynolds

July
- Children of Strife, Adrian Tchaikovsky
- Jamás tendré 20 años, Jaime Martín
- Jóvenes Hombres lobo (Werewolves in Their Youth), Michael Chabon

August
- Becoming a Harness-Driven Developer, Miloš Kecman
- Aventuras en oriente de Mikael Karvajalka (Mikael Hakim), Mika Waltari
- Spec Driven Development: Construye con IA sin Perder el Control, Bezael Pérez
- OOP the easy way, Graham Lee
- Secure By Design, Dan Bergh Johnsson, Daniel Deogun and Daniel Sawano
- Get Your Hands Dirty on Clean Architecture 2nd edition, Tom Hombergs
- Testing Spring Boot Applications Demystified, Philip Riecks

September
- Acerca de Roderer, Guillermo Martínez
- Process over Magic: Beyond Vibe Coding, Uberto Barbini
- Risk-First Software Development 2nd Edition, Rob Moffat

Saturday, September 12, 2026

Interesting Interview: Why The Best Software Engineers Focus On System Design

I've just watched this great interview with Bassem Dghaidi on Beyond Coding Podcast

Why The Best Software Engineers Focus On System Design

Interesting Talk: AI made me doubt everything about programming

I've just watched this interesting talk by Felienne Hermans:

AI made me doubt everything about programming

Interesting Talk: Understanding is the new bottleneck

I've just watched this interesting talk by Geoffrey Litt:

Understanding is the new bottleneck

Interesting Video: Is TDD Actually Useful for AI Agents?

I've just watched this interesting video by Alex Bolboaca

Is TDD Actually Useful for AI Agents?

He's commenting this great article: TDD inside the agent loop - theater or actual value? by Birgitta Böckeler

Interesting Video: How To Build a Dark Software Factory in 3 Months

I've just watched this interesting video by Ray Myers

How To Build a Dark Software Factory in 3 Months

From his series: Dark Factory Considered Harmful.

Interesting Interview: From Technical Debt to Triple Debt: The Hidden Cost of AI-Generated Code

I've just watched this great interview with Margaret-Anne Storey on Tech Lead Journal channel

From Technical Debt to Triple Debt: The Hidden Cost of AI-Generated Code

Interesting Interview: Signals & Levers: Systems Thinking to Navigate Software Delivery Illusions

I've just watched this great interview with Elisabeth Hendrickson and Joel Tosi on Tech Lead Journal channel

Signals & Levers: Systems Thinking to Navigate Software Delivery Illusions

Tuesday, September 1, 2026

Books I read (January - August 2026)

Saturday, August 1, 2026

Books I read (January - July 2026)

Saturday, July 4, 2026

Books I read (January - June 2026)

Thursday, June 4, 2026

Books I read (January - May 2026)

Thursday, April 2, 2026

Books I read (January - March 2026)

Saturday, February 28, 2026

Relevant Mutants in a Flash

Relevant Mutants.

Not all surviving mutants indicate weaknesses in tests.
Not relevant surviving mutants (don’t signal any test weakness):
- Ignore these ones:
  - In dead code (unreachable code)
  - In legacy seams (intentionally excluded from test execution).
  - Code not used because of legacy seams (also intentional).
- Mutants in superfluous code:
  - They survive because the mutation did not change any behavior.
  - Still useful 💰: signal a possible simplification (refactoring opportunity).
Relevant surviving mutants 💰: reveal genuine gaps in the test suite
- e.g. missing boundaries, too lenient assertions, etc.
Read Relevant Mutants.

Books I read (January - February 2026)

Wednesday, February 25, 2026

Interesting Talk: No Vibes Allowed: Solving Hard Problems in Complex Codebases

I've just watched this great talk by Dex Horthy

No Vibes Allowed: Solving Hard Problems in Complex Codebases

Interesting Talk: From Vibe Coding To Vibe Engineering

I've just watched this funny talk by Kitze:

From Vibe Coding To Vibe Engineering

Interesting Video: Does Code Quality Matter When AI Writes the Code?

I've just watched this interesting video by Tim Corey

Does Code Quality Matter When AI Writes the Code?

Interesting Talk: Making Codebases Agent Ready

I've just watched this great talk by Eno Reyes

Making Codebases Agent Ready

Interesting Talk: Can you prove AI ROI in Software Eng?

I've just watched this great talk by Yegor Denisov-Blanch

Can you prove AI ROI in Software Eng? (Stanford 120k Devs Study)

This is a continuation of the study that appears in his previous talk: Does AI Actually Boost Developer Productivity? (100k Devs Study)

Interesting Talk: Using AI to Refactor Legacy Code: A Practical Guide

I've just watched this interesting talk by Scott Wierschem:

Using AI to Refactor Legacy Code: A Practical Guide

Interesting Talk: Don’t get one-shotted: Use AI to test, review, merge, and deploy code

I've just watched this interesting talk by Tomas Reimers:

Don’t get one-shotted: Use AI to test, review, merge, and deploy code

Interesting video: Claude Code is all you need in 2026

I've just watched this interesting video by Brian Casel

Claude Code is all you need in 2026

Interesting Talk: Dispatch from the Future: building an AI-native Company

I've just watched this interesting talk by Dan Shipper:

Dispatch from the Future: building an AI-native Company

Interesting Talk: Vibe coding and the evolution of developer experience tools

I've just watched this interesting talk by Harsha Shivanna:

Vibe coding and the evolution of developer experience tools

Interesting Interview: Vibe Coding Solved What I Couldn't in 13 YEARS

I've just watched this great interview with Gene Kim on Tech Lead Journal channel

Vibe Coding Solved What I Couldn't in 13 YEARS

Tuesday, February 17, 2026

Interesting Video: When to Vibe Code?

I've just watched this super interesting video by Graham Lee on a new dimension of technical debt in vibe-coded solutions:

When to Vibe Code?

Interesting Talk: From autocomplete to agents: AI coding assistance state of play

I've just watched this interesting talk by Birgitta Böckeler

From autocomplete to agents: AI coding assistance state of play

Monday, February 16, 2026

Interesting Talk: Automated software refactoring with OpenRewrite and OpenAI

I've just watched this interesting talk by Olga Kundzich and Sam Snyder

Automated software refactoring with OpenRewrite and OpenAI

Interesting Talk: AI Hates Legacy Code

I've just watched this great talk by Ray Myers

AI Hates Legacy Code

Interesting short conversation: How Agents Decide What to Use and When

I've just watched this great short conversation by Guy Podjarny and Simon Maple

How Agents Decide What to Use and When

Interesting Talk: AI Coding: The State of The Mend

I've just watched this great talk by Ray Myers

AI Coding: The State of The Mend

Interesting Video: Agents are Easy. REALLY : A Vibe Coding Journey

I've just watched this interesting video by Matt Maher

Agents are Easy. REALLY : A Vibe Coding Journey

Interesting Talk: Self Coding Agents

I've just watched this great talk by Colin Flaherty

Self Coding Agents

Interesting Talk: Playing the long game

I've just watched this great talk by Sheena O'Connell

Playing the long game

Wednesday, February 11, 2026

Interesting Talk: Beyond Code: The Role of Developers in the Age of AI

I've just watched this great talk by Kesha Williams

Beyond Code: The Role of Developers in the Age of AI

Interesting Talk: Making AI coding assistants better, even for your weird DSLs

I've just watched this great talk by George Fahmy

Making AI coding assistants better, even for your weird DSLs

Interesting Talk: AI assisted programming: from inline completions to agentic workflows

I've just watched this great talk by Anton Arhipov

AI assisted programming: from inline completions to agentic workflows

Interesting Talk: Large-scale refactors with Agents

I've just watched this great talk by Robert Brennan

Large-scale refactors with Agents

Interesting Talk: Automating Large Scale Refactors with Parallel Agents

I've just watched this great talk by Robert Brennan

Automating Large Scale Refactors with Parallel Agents

Interesting Talk: Beyond Tests What to Verify in AI Generated Code

I've just watched this great talk by Jennifer Sand and Brandy Pielech

Beyond Tests What to Verify in AI Generated Code

Interesting Talk: Agent Skills, Rules, Subagents: Explained!

I've just watched this great short talk by Lee Robinson

Agent Skills, Rules, Subagents: Explained!

Interesting Podcast: Don’t Trust AI Reporting! (Three Traps to Avoid)

I've just listened to this great podcast by Cal Newport

Don’t Trust AI Reporting! (Three Traps to Avoid)

The discussion about AI Reporting traps occurs during the first 29 minutes of the podcast.

Interesting Talk: We Studied 150 Developers Using AI

I've just watched this interesting short talk by Dave Farley

We Studied 150 Developers Using AI

Tuesday, February 10, 2026

Interesting Talk: How I Tamed Claude

I've just watched this interesting talk by Emmz Rendle

How I Tamed Claude

Interesting Talk: Relax

I've just watched this interesting talk by Maximilian Schwarzmüller

Spec-Driven Development in the Real World

Interesting Talk: "I shipped code I don't understand and I bet you have too"

I've just watched this interesting talk by Jake Nations

"I shipped code I don't understand and I bet you have too"

Interesting Talk: The New Code

I've just watched this interesting talk by Sean Grove

The New Code

Interesting Talk: ChatGPT & Copilot are NOT Refactoring Tools

I've just watched this interesting talk by Emily Bache

ChatGPT & Copilot are NOT Refactoring Tools

Interesting Video: Can Claude help with legacy code?

I've just watched this interesting video by Alex Bolboaca

Can Claude help with legacy code?

Interesting Talk: Augmented Coding: Mapping the Uncharted Territory

I've just watched this interesting talk by Lada Kesseler

Augmented Coding: Mapping the Uncharted Territory

Saturday, January 31, 2026

Books I read (January 2026)

What I wrote in 2025

- A case of Shotgun Surgery (a translation and update of a previous post in Spanish coauthored with Fran Reyes).
- The class is not the unit in the London school style of TDD.
- Sprouting or wrapping?.
- Mutantes relevantes (a translation and update of a previous post in English).
- Integrando ApprovalsJS con WebStorm (coauthored with Fran Reyes).
- "Isolated" test means something very different to different people!.
- Usando conjuntamente ApprovalsJs y StrykerJS en WebStorm (coauthored with Fran Reyes).
- ¿Tamaño y nivel de detalle adecuados para una historia de usuario? (coauthored with Fran Reyes).
- Heuristics to determine unit boundaries: object peer stereotypes, detecting effects and FIRS-ness.
- Mejorar nuestros rojos (a translation and update of a previous post in English).
- Using prompt patterns to enhance how you learn about prompt patterns.
- Convirtiendo tests no paramétricos en paramétricos con la IA (e intentando generar ejemplos).
- Segregating a test builder applying the curiously recurring template pattern.
- Removing commented-out code (a translation and update of a previous post in Spanish coauthored with Fran Reyes).
- La clase no es la unidad en el estilo de TDD de Londres (a translation and update of a previous post in English).
- Nuestro flujo de decisión para refinar Historias de Usuario poco antes de empezar a desarrollarla (coauthored with Fran Reyes).
- Breaking out to improve cohesion (peer detection techniques).
- Refactoring the tests after a "Breaking Out" (peer detection techniques).
- Parallel change example: simplifying some test builders" (peer detection techniques).
- A simple example of the temporary field code smell.

Sunday, January 4, 2026

Books I read 2025

January
- The three body problem, Liu Cixin
- Dark Forest, Liu Cixin
- Programming with Types, Vlad Riscutia
- Saturation point, Adrian Tchaikovsky
- Death's End, Liu Cixin

February
- One Day All This Will Be Yours, Adrian Tchaikovsky

March
- El invierno en Lisboa, Antonio Muñoz Molina
- Walking to Aldebaran, Adrian Tchaikovsky
- Interface-Oriented Design, Ken Pugh

April
- Elegant objects 2, Yegor Bugayenko
- Orbital, Samantha Harvey
- Song yet sung, James McBride
- Extreme Programming Applied: Playing to Win, Ken Auer, Roy W. Miller

May
- Extreme Programming Explored, William C. Wake
- Some desperate Glory, Emily Tesh
- Refactoring in large software projects, Stefan Roock, Martín Lippert
- Test-lists utilization in TDD: The role of test-lists in requirements traceability, Hassan Mahmood Khan, Ibrar Arshad (master thesis)
- The role of slicing in TDD, Dieste et al. (paper)
- Impact Mapping, Gojko Adzic

June
- Searching for Opportunities of Refactoring Sequences: Reducing the Search Space, Piveta et al. (paper)
- Be a Learning Machine, Alberto Souza
- GRASP and GOF Patterns in Solving Design Problems, R.M.Noorullah (paper)
- Raciones de diseño de software: Mini ensayos para developers, Fran Iglesias
- Test-Driven Development: A Practical Guide, Dave Astels
- Flexible, Reliable Software, Using Patterns and Agile Development, Henrik Bærbak Christensen
- The BDD Books - Discovery: Explore behaviour using examples, Gáspár Nagy, Seb Rose

July
- Pon tu código en forma con calistenia, Fran Iglesias
- Designing Object Systems: Object-oriented Modelling with Syntropy, Steve Cook, John Daniels
- How the Practice of TDD Influences Class Design in Object-Oriented Systems: Patterns of Unit Tests Feedback, Mauricio Aniche, Marco Aurelio Gerosa (paper)
- Taming your dragon: Addressing Your Technical Debt, Dr. Andrew Richard Brown

August
- Domain-Driven Refactoring: A hands-on DDD guide to transforming monoliths into modular systems and microservices, Alessandro Colla, Alberto Acerbis
- Through a mirror darkly: How programmers understand legacy code, Carlos L. Burgos, Julie J. C. H. Ryan, Edward Lile Murphree (paper)
- Software Archeology, Andy Hunt, Dave Thomas (article)
- AI-assisted Programming, Tom Taulli
- Sensemaking: What Makes Human Intelligence Essential in the Age of the Algorithm, Christian Madsbjerg
- Software Testing with Generative AI, Mark Winteringham
- Refactoring vs Refuctoring: Advancing the state of AI- automated Code improvements, Adam Tornhill, Markus Borg, Enys Mones (white paper)
- Leveraging Code Smell Detection with Inter-smell Relations, Błażej Pietrzak, Bartosz Walter (paper)

September
- When and why your Code starts to smell bad (paper), Michele Tufano et al.
- Stone and Sky, Ben Aaronovitch
- It can't happen here, Sinclair Lewis
- El código generado con IA necesita frenos, no acelerador (post), Jorge Castro
- Should we revisit Extreme Programming in the age of AI? (post), Jacob Clark
- Efective software design practices, Alberto Souza
- What is the point of learning to write in a world with AI? (post), Daisy Christodoulou
- Del capitalismo sin alternativa a la IA sin preguntas (post), Pau Samo
- Assuring good style for OO programs. Demeter Law (paper), Karl Lleberherr, Ian Holland

October
- Eyes on the code: Analyzing developers' responses during code snippet analysis (paper), Vinícius Martins et al
- Beltenebros, Antonio Muñoz Molina
- Tranvía a la Malvarrosa, Manuel Vicent
- The Pragmatic Programmer 20th anniversary edition, David Thomas, Andrew Hunt
- On Writing, Stephen King
- La gesta del marrano, Marcos Aguinis
- Thinking in Bets: Making Smarter Decisions When You Don't Have All the Facts, Annie Duke
- Test-Driven Development: Concepts, Taxonomy,and Future Direction (paper), David Janzen, Hossein Saiedian
- Balancing Coupling in Software Design: Universal Design Principles for Architecting Modular Software Systems, Vlad Khononov

November
- Beyond Vibe Coding, Addy Osmani
- Observability Engineering, Charity Majors, Liz Fong-Jones, George Miranda

December
- AI Engineering, Chip Huyen
- Java Design Patterns Workbook, Steve Metsker, William C. Wake
- ¡No pasarán!, Vittorio Giardino
- The Martian Contingency, Mary Robinette Kowal
- Kill it with fire, Marianne Bellotti
- Una historia particular, Manuel Vicent