Peter Eysermans

Peter Eysermans

CTO in residence

AI

Your company needs more than an LLM subscription

Handing everyone an LLM subscription gives them a model. A shared, self-hosted agent gives them a configured environment with company context, connected tools, and clear boundaries. Why a company should own that layer rather than rent it, and how to start small.

AI

My email agent invented a prompt injection, then fell for it

An autonomous email agent hit a missing script, spiralled through 25 pointless shell calls, then fabricated email content including a prompt injection, and acted on it. The fix is not more warnings. It is structural validation before the model ever sees the data.

Documentation

Documentation has a new reader and why it should belong inside the codebase

AI is now a reader of your documentation. When context lives outside the repository, gaps appear and assumptions creep in. Moving documentation closer to the code makes the system easier to reason about, for people and for machines.

AI

Building a slide deck with pencil.dev and Claude Design

A head-to-head of pencil.dev vs Claude Design on the same markdown input. Claude Design produced the more polished deck and handled speaker notes; pencil.dev still wins for iterative UI work where direct manipulation matters.

Documentation

Stop letting documentation rot

Five types of documentation, five different AI leverage stories. The question isn’t whether to involve AI in your docs; it’s where each type belongs and how much maintenance you can hand off.

AI

Agentic engineering is a bottleneck

The standard AI-assisted dev loop has created a new bottleneck: us. Peter Eysermans describes how deterministic orchestration via n8n, with GitHub as shared memory, gets the human off the loop without sacrificing quality.

Communication

The disconnect between management and engineering

A mobile app, past its usefulness, was days from being phased out. One email reversed the decision. No discussion. No input from engineering. This is what happens when decision-making drifts too far from the work.

AI

Hire for divers

The AI wave is here, and the industry is already splitting into two: those adapting fast and those falling behind. The gap is widening quickly.

madewithlove

A founder's commitment to their engineering team

Founders juggle endless demands, investors, sales, suppliers, and employees, all while building the plane mid-flight. But with engineering often being your biggest expense, there's one responsibility you can't delegate: ensuring your team builds the right thing.

AI

Out with multitasking, in with orchestrating

The return of multitasking, but not as we knew it. Running multiple Claude Code instances simultaneously isn't the context-switching productivity killer we've been warned about for years; it's orchestration

CTO

Communicate or be micromanaged - the CTO edition

CTOs often come from engineering backgrounds and, particularly when newly promoted, tend to focus on what they know best, the technology. While this is understandable given their previous success, technology is rarely the hardest part of the CTO role.

CTO

Communicate or be micromanaged - the engineering edition

Micromanagement rarely starts with bad intent. It usually starts with silence. When nobody knows what you are working on, meetings multiply, trust erodes, and focus disappears. This piece shows how clear, boring communication is your best defence.

AI

How to pragmatically leverage AI as a startup

If you believe what you see on LinkedIn, startups don't need employees anymore, real founders just have agents building their companies. You write a prompt, fire off the agent, and wait for customers. In reality, you get a vague workflow that produces a mediocre demo at best.

AI

No designer? No problem with v0

For small teams without a designer, v0 is a game-changer. The cost justifies itself by letting you explore and validate ideas in minutes rather than days.

AI

Why I switched from BugBot to Claude for code reviews

I switched from Cursor's BugBot ($40/month) to Claude Code for code reviews. Setup is straightforward in VS Code, and Claude's bug detection has been notably better. While it still flags null reference checks like most AI reviewers, the difference in catching actual bugs is significant.

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