Notes on AI that actually helps.

What we learn building AI tools for real businesses — written in plain language, with real examples. No hype, no names.

Strategy, costs & ROI

21 July 2026·5 min read

AI agents: France’s competition authority flags an 84% lock-in risk — what it means for your SMB

On July 17, 2026, the French competition authority published its opinion on the AI agents sector: OpenAI, Google and Anthropic together control more than 84% of it, and the regulator warns of a “platformization” risk that could shrink the diversity of what is on offer. What this means for an SMB choosing an AI agent vendor — or trying to get found by one.

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Strategy, costs & ROI

21 July 2026·5 min read

AI in accounting: what early field research says about where the time actually goes

The pitch is often "AI closes your books automatically." What field research on real accounting teams documents is more precise — and more useful for deciding what to automate first.

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Strategy, costs & ROI

21 July 2026·5 min read

Fine-tuning or better prompting: which one actually fixes your agent’s weak spot

When an AI agent gets something wrong, the instinct is often "we need to train it on our data." Most of the time, a better-designed prompt and retrieved context fix the problem faster, cheaper, and without the risks fine-tuning introduces.

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Strategy, costs & ROI

21 July 2026·4 min read

The real running cost of an AI agent: it is not the build, it is the tokens

The invoice for building an agent is a one-time number. The cost that determines whether it stays profitable is the one paid per request, forever — and it has been falling fast enough to change what is worth automating.

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Strategy, costs & ROI

17 July 2026·7 min read

AI Overviews in France: live since July 2026, SMB guide

Yes, Google AI Overviews and AI Mode are live in France since July 22, 2026. The timeline, what Google promised publishers, what the research says about clicks, and the checks an SMB can run in Search Console.

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Strategy, costs & ROI

16 July 2026·5 min read

AI coaching for business: build custom or subscribe to a platform?

AI coaching platforms for business are multiplying, almost all sold as a per-seat subscription. The three-question test to know whether you should build your own instead — and what that actually changes, costs and data included.

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