Dominique Siacci (@dsiacci) header
Dominique Siacci (@dsiacci) profile picture

Dominique Siacci

@dsiacci

CTO @GoodBarber. Clicks — and now prompts — into apps that last. Software architecture & AI. @CampusPlex — tech made in Corsica. ✈️🚴🏎️🏔️

 Ajaccio, Corsica
goodbarber.com
Joined October 2008
  • Tweets2K
  • Following437
  • Followers1.1K
In September an agent building a catalogue of our back-office settings took its score from 95% to 97.2% in half an hour. 51 of the 62 keys behind that jump were ones it had dropped. The next morning a second agent checked those 51, and every one was reachable.
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dev.to/dsiacci/my-agents-kep…
My agents kept dropping what resisted. 10 of my 19 vetoes were about that.

My agents kept dropping what resisted. 10 of my 19 vetoes were about that.

On September 30, an agent was building a catalogue of every setting in our back-office, nearly three...

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In September my agent ran a --dry-run and it wrote seven texts to our site anyway. The flag was before the subcommand, where argparse with parents= quietly resets it to False. No harm, they were the texts I wanted. A colleague had already fixed it, we just hadn't pulled yet.
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dev.to/dsiacci/my-agents-dry…
My agent's dry-run wrote seven texts to production. The fix was already on the remote.

My agent's dry-run wrote seven texts to production. The fix was already on the remote.

On September 15 at 10:27 UTC, an agent working for me ran a dry-run seven times, once per language of...

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Some of the apps calling our servers this morning were built years ago and never rebuilt. We don't force updates, so the older generation of our engine still answers them, in the format they were built for. I wrote up how that works and what it costs us.
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dev.to/goodbarber/old-apps-s…
Old apps still call home

Old apps still call home

Somewhere this morning, a phone opened an app that was built on our platform years ago. Its owner...

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Last week I told an agent we'd start an autonomous loop, I'd close my session and come back days later to find the job done. 28 coding agents put in 964 hours over six days, and I never really closed it. On Monday I made 63 decisions in one hour.
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dev.to/dsiacci/964-hours-of-…
964 hours of agent work in six days. Here's where my own hours went.

964 hours of agent work in six days. Here's where my own hours went.

On October 7 I dictated the plan to an agent: we would start an autonomous loop, I would close my...

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🙌🏻
GoodBarber (@goodbarber) profile pictureGoodBarber
@goodbarberOct 9
Hacktoberfest swag just landed in Ajaccio 📦 See you Oct 21 at CampusPlex for an evening on open source and open-weight AI. Free, with t-shirts while they last. Thanks @hacktoberfest, @MLHacks and @ThePracticalDev! events.mlh.com/events/14893-…
Image from GoodBarber (@goodbarber)
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Dominique Siacci retweeted
Mathieu Poli (@hellomathieup) profile picture
Mathieu Poli@hellomathieupOct 8
Apps are the future, chapitre 2. L'IA peut lire votre site à la place de vos lecteurs. Elle ne peut pas ouvrir votre app. Sites d'info -23 %, applis -9 % (ACPM). L'app redevient essentielle en 2026.
The Media Leader FR (@MediaLeaderFR) profile pictureThe Media Leader FR
@MediaLeaderFROct 8
AI Overviews : les sites d’info perdent 23% de visites, les applis résistent, selon l’ACPM. fr.themedialeader.com/ai-ove…
AI Overviews : les sites d’info perdent 23% de visites, les applis résistent, selon l’ACPM - The...

AI Overviews : les sites d’info perdent 23% de visites, les applis résistent, selon l’ACPM - The...

Deux mois après l'arrivée de Google AI Overviews en France, le classement ACPM de septembre 2026, publié ce mercredi, montre un net recul des marques d'information sur un an. Les sites, dépendants de...

fr.themedialeader.com
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We just shipped group sessions in Appointment booking. Pierre-Laurent @oPewmaker built the extra features: several people per slot, Google Calendar optional, and a Bookings tab that lists who is coming.
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goodbarber.com/blog/appointm…
Appointment booking now takes group sessions

Appointment booking now takes group sessions

Appointment booking now takes several people per time slot, works without a Google Calendar, and lists every attendee in a new Bookings tab of your back office.

goodbarber.com
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100%. I mainly work lile that since 4-5 months and it changes a lot, especially with long running tasks, but not only. And you can close your laptop whenever you want without worrying :-)
DHH (@dhh) profile pictureDHH
@dhhOct 4
Every developer needs an AI shed: An always-on machine running on their tailscale network where the majority of their herdr agents are running.
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Dominique Siacci retweeted
Mathieu Poli (@hellomathieup) profile picture
Mathieu Poli@hellomathieupOct 2
We never left native at @GoodBarber. Went from old fashioned to early without changing a thing 😄
Gergely Orosz (@GergelyOrosz) profile pictureGergely Orosz
@GergelyOroszOct 1
Start of a new trend and it’s once again Shopify being the trigger I have to say as someone who used to develop mobile apps (iOS, Android, even Windows Phone) I have always had a soft spot for native: it’s the one where you are in control of your destiny. It used to require more work - AI reduces this
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Dominique Siacci retweeted
Gergely Orosz (@GergelyOrosz) profile picture
Gergely Orosz
@GergelyOroszOct 1
Start of a new trend and it’s once again Shopify being the trigger I have to say as someone who used to develop mobile apps (iOS, Android, even Windows Phone) I have always had a soft spot for native: it’s the one where you are in control of your destiny. It used to require more work - AI reduces this
Mustafa Ali (@mustafa01ali) profile pictureMustafa Ali
@mustafa01aliOct 1
Coinbase is going native too. Judging by how many teams reached out after our native announcement, expect more of these soon.
Image from Mustafa Ali (@mustafa01ali)
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The DuoApps name dates from 2009, before it became GoodBarber. We brought it back, and made it an open knowledge base on designing apps for iPhone Duo. duoapps.com/
DuoApps

DuoApps

Designing an app for iPhone Duo: rules by screen type, a proof level on every line, and demos you can play with.

duoapps.com
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Got asked this week if we're worried about agents killing apps. Short version: Apple just sent Siri into installed apps, Google is doing the same with Gemini, and I think they're right. Long version, with the caveats: dev.to/goodbarber/agents-won…
Agents won't kill apps... on a phone, they can't act without them

Agents won't kill apps... on a phone, they can't act without them

At WWDC this year, in the keynote, Apple confirmed something I had been holding as a logical...

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Apps are the future
Mathieu Poli (@hellomathieup) profile pictureMathieu Poli@hellomathieupOct 1
Do I need an app in 2026? 2010: yes. 2015: a website will do. 2026: yes again. Thank Siri and Gemini. My take 👇 dev.to/goodbarber/the-assist…
The assistant is making the native app mandatory again

The assistant is making the native app mandatory again

For ten years, a well-built website was an acceptable answer to the question "do I need an app?"....

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Dominique Siacci retweeted
Mathieu Poli (@hellomathieup) profile picture
Mathieu Poli@hellomathieupOct 1
Do I need an app in 2026? 2010: yes. 2015: a website will do. 2026: yes again. Thank Siri and Gemini. My take 👇 dev.to/goodbarber/the-assist…
The assistant is making the native app mandatory again

The assistant is making the native app mandatory again

For ten years, a well-built website was an acceptable answer to the question "do I need an app?"....

dev.to
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