Series · 4 chapters
Blog
When a problem shows up across three clients, I write about it here.
This blog doesn't follow a syllabus. It follows repeated patterns. Data, AI, architecture, processes, Google Sheets and quick tips that solve something I've been asked more than once, with the source linked.
The paper
Weekly edition · APFerrer
October 14, 2026
Series
Artificial intelligence
Series · 6 chapters
Digitaliza tu empresa por cero euros
Estrategia empresarial
Chapter 1 · Start here
Go digital with zero budget
From novice to sorted in less time than you'd think
Read chapter- 02
Digitalise your business for zero euros (Chapter 2)
Nov 14, 2024 17 min - 03
Go digital for free, Chapter 3: Document sharing with Google Workspace
Nov 21, 2024 21 min - 04
Digitise your business for free (Chapter 4): Making spreadsheets work for you
Nov 28, 2024 27 min - 05
Digitalise your business for zero euros (Chapter 5)
Dec 05, 2024 16 min - 06
Digitise your company for zero euros - Chapter 6: Automation with n8n without your own servers
Sep 17, 2026 15 min
Series · 3 chapters
Trucos rápidos
Series · 2 chapters
Google Sheets
Series · 2 chapters
Arquitectura de datos
Standalone articles
Inteligencia artificial
Artificial intelligence
GEO: how LLMs read your content and what to change so they cite you
Generative engines read your content as entities and relations. Building pages around well-named entities is what gets ChatGPT, Perplexity and Gemini to cite you in their answers.
Oct 14, 2026 18 min
Arquitectura de datos
Data architecture
Determinism before LLMs: when a dictionary or a well-written function beats the model
Putting an LLM on tasks that a 20-line function or an official catalogue already solves costs up to 24 times more and delivers worse accuracy. This post sets out when determinism beats the model on cost, accuracy and traceability.
Oct 07, 2026 18 min
Gestión de procesos
Process management
OpenAI shuts down the Assistants API and retires models: how to migrate your automations before 23 October
OpenAI shut down the Assistants API on 26 August and retires gpt-4-turbo, o1 and o3-mini on 23 October. How to inventory your automations and migrate them before they fail silently.
Oct 06, 2026 18 min
Inteligencia artificial
Artificial intelligence
Article 50 of the EU AI Act: what the Digital Omnibus has not postponed and what your company should review
The Digital Omnibus pushes the high-risk rules of the EU AI Act back to 2027, but since 2 August 2026 Article 50 has required companies to disclose their chatbots and mark AI-generated content.
Oct 02, 2026 18 min
Arquitectura de datos
Data architecture
AI model gateway: how to design an enterprise architecture without vendor lock-in
A model gateway routes each call to the right provider and lets you switch vendor without rebuilding the system. Lock-in doesn't come from using an API. It comes from gluing your architecture to a single provider.
Sep 30, 2026 18 min
Estrategia empresarial
Business strategy
Own vertical software vs vertical SaaS: when fit to process outweighs price
Vertical SaaS imposes the sector's average way of operating. Own vertical software keeps the operational particularities that generate margin. The difference shows in what the client can configure and what it cannot.
Sep 09, 2026 15 min
Inteligencia artificial
Artificial intelligence
The real cost of on-premise AI in a company: seven lines missing from the first invoice
A local SLM is sold on the price of the server. The real annual cost adds MLOps, staff, updates, security and continuity. This post breaks down the lines that never appear on the first invoice.
Sep 02, 2026 16 min
Inteligencia artificial
Artificial intelligence
Semantic Scale: seven levels to assign each task to the right mechanism
The seven levels of the Semantic Scale let you decide by design which mechanism handles each task in a business workflow at the lowest total cost, from deterministic code to pure human review.
Aug 26, 2026 18 min
Estrategia empresarial
Business strategy
Own Vertical Software: what a vertical body is and why it isn't a rebadged SaaS
A vertical body bundles the architecture and data model already solved for a sector. Each company adapts its own system on top of it, without reinventing the foundations or accepting the forced workflow of a SaaS.
Aug 19, 2026 20 min
Estrategia empresarial
Business strategy
How to raise consulting rates without expanding scope: repositioning strategy
The most common trap is assuming you must do more to charge more. A consultant earning €60 an hour imagines that to double to €120 they need to offer extra deliverables, more sessions, expanded scope. Something in the offer must change, …
Jul 23, 2026 15 min
Estrategia empresarial
Business strategy
Complete guide to artificial intelligence for businesses: when to use it, when not to, and how to get the most from it
AI is everywhere, chatbots, email, code, reports. Some companies fire staff to replace them with AI. Here's the thing:
Nov 06, 2024 27 min
Gestión de procesos
Process management
Process management: The house of flying AIs
You're not using generative AI properly.
Oct 24, 2024 24 min
Estrategia empresarial
Business strategy
Business Strategy: From Niche to Execution
Search "market niches 2024" on Google and you'll get millions of impractical results. The dilemma: you want to grow without losing what makes you different.
Oct 23, 2024 11 min
Estrategia empresarial
Business strategy
Business Strategy: Fundamentals and OGSM
Feet on earth, eyes on the stars.
Oct 18, 2024 22 min
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