Cyrille Martraire
banner
cyriux.bsky.social
Cyrille Martraire
@cyriux.bsky.social
Software socio-technical architect, DDD enthusiast, trainer, speaker, Arolla CTO & co-founder, living in Paris. Author of “Living Documentation” (Addison-Wesley), co-author “Software Craft” (Dunod). Also fan of modern electro & pop music production
Today’s newsletter is a firework of titles against the Zucman tax, with no less than 12 essays against it.

Notably, no mention of Mistral CEO being in supportive of the Zucman tax.
September 17, 2025 at 9:38 AM
French financial newspaper Les Echos clearly shows their opinion (and possibly fears) of their owner LVMH this week: 4 stories against taxing the richest and for more austerity.

Usually their editorial articles are more nuanced and balanced (even though it’s a liberal newspaper)
September 14, 2025 at 9:37 AM
Just visited (at last) the Soulages Museum in Rodez! Great to witness the evolution of the artist, in a beautiful building.
Extra bonus: the fantastic Café Bras on the premise 😋
August 17, 2025 at 3:02 PM
Wrong picture, here is the correct one of Herbert Simon PhD
June 6, 2025 at 9:31 PM
A somehow funny 3x3 mosaic collage of pictures of @cyetain.com Jabe Bloom on stage in multiple very dynamic body postures during his closing keynote at #dddeu
June 6, 2025 at 5:36 PM
"Create contexts in which options can be discovered, evaluated and selected.
These contexts themselves constrain the kinds, amounts and complexity of the things discovered." - @cyetain.com at #dddeu
June 6, 2025 at 5:23 PM
Some serious Herbert Simon vibes during @cyetain.com closing keynote at #dddeu 2025!
June 6, 2025 at 5:19 PM
Domain-driven Design’s magic is to convert complex problems into predictable, repeatable, orderly software - @settling-mud.bsky.social with @johncutle.fish at #dddeu
June 6, 2025 at 7:40 AM
That’s how we do Domain-Driven Design for real: @ericevans0.bsky.social can’t resist but going in-depth into learning the domain of how LLMs work, down to monosemantic and polysemantic neurons! #dddeu
June 5, 2025 at 1:53 PM
Feature Flag Alternatives to consider:
• Better Split (of user stories)
• GoF Design Patterns
• Domain-Driven Design
• Strangler Application Pattern
• Branch By Abstraction
• Circuit breaker

Dorra BARTAGUIZ at #DDDEU
June 4, 2025 at 2:03 PM
Thanks Tobias Goeshel for sharing your 4-month experiment of using AI agents to solve a domain problem directly! Lots of cues of what’s ahead of us, and all this thanks to last year @ericevans0.bsky.social talk! #dddeu
June 4, 2025 at 9:50 AM
If software engineers had named the automobile... ...it'd be called PistonCrankshaftGearWheelAssembly 😂 - Gregor Hohpe #dddeu
June 4, 2025 at 8:01 AM
And that’s a start of #DDDEU by @gienverschatse.com herself on the huge stage of the Antwerp Elizabeth Hall! 🎉 #ddd
June 4, 2025 at 7:37 AM
It was a pleasure to be with you @ruthmalan.bsky.social today! I learnt a lot, got a lot of food for thoughts, took 12 pages of notes to revisit, in just one day. And we can see again in the coming days at #DDDeu!
June 3, 2025 at 10:35 PM
“Control the narrative, provide hope, but fight when needed. Ah, et il faut bien manger.” - @nick-tune.me wrapping up his talk on legacy modernization at @flowcon.bsky.social
April 2, 2025 at 12:53 PM
ADRs come in series, like a Netflix series! We need to number them, reference prior episodes, check chronological consistency amd test them!
- DSI France Travail experience report on Continuous Architecture at @flowcon.bsky.social
April 2, 2025 at 10:19 AM
Explain your username.

I was a DJ at weddings and students parties as a teen. I was “DJ Cyriux” from my given name Cyrille. Our discomobile was named “MegaDance”.
January 12, 2025 at 9:57 AM