I'm Stéphane Klein, I live in Paris, Software Craftsman and table tennis player.

Since March 2026, I am on a sabbatical year: I chose to take twelve months to get better at AI-assisted development. I build real projects — tools I use daily, prototypes, and things that may be useful to others — I do open-source contributions, and I build methods and tools to code faster and better with AI agents.

You can follow my notes on notes.sklein.xyz and discover my projects on my GitHub profile.

Since July 2024, I have been offering freelance software engineering services (page in french).

I write code for fun (comments HN) and profit.

I'm on mamot.fr/@stephane_klein (Mastodon account), LinkedIn, Reddit, GitHub and Twitter (I do not use it much since November 2022),

My english blog posts :

• 2024-03-10 : Need advice on how to convert a filter string query on tags in SQL, for example "(tag1 and tag2) or tag3" in SQL?
• 2024-02-11 : Automated OS testing on physical laptops as a service?

Most of my content is written in French: https://sklein/fr/.

Web analytics: stats.sklein.xyz