iiinova — where your digital self keeps evolving

Vaughn Vernon @vaughnvernon.bsky.social · 25/09/2026

Problem fitting a hexagonal peg into a round hole? Workshop: Implementing Domain-Driven Design 4 days: $400 12-15 October - DDD Strategic and Tactical Design - EventStorming, Impact Mapping - Ports & Adapters / Hexagonal Architecture - Event-Driven Architecture kalele.io/iddd-workshop

#EventDrivenArchitecture #EventSourcing #CQRS

010

Vaughn Vernon @vaughnvernon.bsky.social · 17/09/2026

This might be your final opportunity of 2026 to make me wake up at 4:00 AM to teach you how not to create software as you see below. L Workshop: Implementing Domain-Driven Design 4 days: $400 Dates: 12-15 October Each is one request of a large banking legacy that I'm working with.

#DDDesign #DomainDrivenDesign #DDD with Vaughn Vernon

Domain-Driven Design Workshop

Avoid this human-generated slop when you build software with #DDDesign #DomainDrivenDesign #DDD now.

130

Vaughn Vernon @vaughnvernon.bsky.social · 11/09/2026

The bazillion tweaks before release.

210

Vaughn Vernon @vaughnvernon.bsky.social · 09/09/2026

I just received two boxes full of Alex Lawrence's new book. Does anyone live around the Phoenix metro area and want to learn? "Message- and Event-Driven Systems with CQRS and Event Sourcing" Sorry, postage costs more than the book and I'm not sending these to anyone.

041

Vaughn Vernon @vaughnvernon.bsky.social · 03/09/2026

IT'S BACK 🎉🥳👏👏👏 Workshop: Implementing Domain-Driven Design 4 days: $400 12-15 October - DDD Strategic and Tactical Design - EventStorming, Impact Mapping - Ports & Adapters / Hexagonal Architecture - Event-Driven Architecture Limited: same seat limit as full price. kalele.io/iddd-workshop

Vaughn Vernon Implementing Domain-Driven Design Workshop

DISCOUNT SAVE LEARN ADVANCED Domain-Driven Design #DDDesign #EventDrvenArchitecture #EventSourcing #EventStorming

010

Vaughn Vernon @vaughnvernon.bsky.social · 15/08/2026

A Founder-CEO drives up to the front of his offices and his new Ferrari. Employees run outside to see up close. They rave over how awesome his Ferrari is, congratulating him. 1/2

141

Vaughn Vernon @vaughnvernon.bsky.social · 24/07/2026

People want to pay only $20/month for a coding agent but demand unlimited tokens. I see these complaints about @claudecode.bsky.social and others. With fists in the air, "I'm switching to blah!" What a silly take. The same people are probably willing to spend more than $20/week on coffee alone.

000

Vaughn Vernon @vaughnvernon.bsky.social · 09/07/2026

"Developer audits YC CEO Garry Tan's 37K AI lines-per-day claim" This could be a YC and/or personal hit piece, but it sure seems like reality. aiweekly.co/alerts/devel...

aiweekly.co

Developer audits YC CEO Garry Tan's 37K AI lines-per-day claim | AI Weekly

120

Vaughn Vernon @vaughnvernon.bsky.social · 08/07/2026

Many Linux UI-based (non-CLI) tools are completely unintuitive. Someone creates a tool to make it "easy" for non-technical users to use the CLI or to consolidate ps et al, and then they make it impossible to understand how to use them from past experience. 1/7

110

Vaughn Vernon @vaughnvernon.bsky.social · 06/07/2026

What will FPers do about Loop Engineering since loops are those nasty, imperative-procedural constructs that run on wretched von Neumann architecture? Could it be Monad Engineering? Engineering is an applied science, not mathematics. Agentic Monad? Recursive Agent? Agentic Recursion? Meh.

221

Vaughn Vernon @vaughnvernon.bsky.social · 05/06/2026

Thing is, if you're talking Core Domain, really talk Core Domain.

#DDDesign #DomainDrivenDesign #DDD Implementing Domain Driven Design Workshop.

000

Vaughn Vernon @vaughnvernon.bsky.social · 05/06/2026

So, you wanna build a digital bank?

000

Vaughn Vernon @vaughnvernon.bsky.social · 03/06/2026

New, IDDD Workshop dates: June 22-25 11:00 AM NYC/EDT, 8:00 AM PDT. $400 A team of 10 requested a later start time, so we opened this third week. Previously registered for Week 2, 10 tickets just opened for June 15-18. Join June 15-18 or June 22-25! kalele.io/iddd-workshop

Implementing Domain-Driven Design #DDDesign #DomainDrivenDesign #DDD #Agentic #CodingAgent

010

Vaughn Vernon @vaughnvernon.bsky.social · 02/06/2026

Workshop: Implementing Domain-Driven Design (almost sold out) $400 15-18 June - DDD Strategic and Tactical Design - EventStorming, Impact Mapping - Ports & Adapters/Hexagonal Architecture - Event-Driven Architecture Limited registration--same seat limit as full price. kalele.io/iddd-workshop

020

Vaughn Vernon @vaughnvernon.bsky.social · 02/06/2026

There's still time to RSVP before the meetup. "This Is Your Agent on Domain-Driven Design" 2 June - 17:00 Berlin/CEST, 08:00 NYC/EDT kommunity.com/ddd-vv/event...

kommunity.com

Let's share together | Kommunity

000

Vaughn Vernon @vaughnvernon.bsky.social · 28/05/2026

If you haven't joined my Kommunity, you should do so. I have another "lightning meetup" panned for next week: "This Is Your Agent on Domain-Driven Design" Join: kommunity.com/organizers/d... Register: kommunity.com/ddd-vv/event...

Vaughn Vernon #DDDesign #DomainDrivenDesign #DDD #AgenticCoding #CodingAgent #ClaudeCode #DigitalBanking

000

Vaughn Vernon @vaughnvernon.bsky.social · 28/05/2026

Have you noticed that coding agents know tables and like them even?

000

Vaughn Vernon @vaughnvernon.bsky.social · 27/05/2026

I've got a new portmanteau for you: alligarchy Get it?

000

Vaughn Vernon @vaughnvernon.bsky.social · 26/05/2026

Stating a position against coding agents and an argument to support it without a context is as misleading as AI hype.

020

Vaughn Vernon @vaughnvernon.bsky.social · 25/05/2026

Gemini's recommended agent use cases and framework: - Coding & Debugging - Lead Generation & Sales - IT & DevOps Use the ARR framework: Task must be Autonomous (operates independently); Recurring (happens regularly); and ***Reviewable*** (output can be clearly assessed).

120

Vaughn Vernon @vaughnvernon.bsky.social · 25/05/2026

Didn't you hear? Polsia *is* the CEO. Now, the board directs the vision, and Polsia does all the work. All the software people? They kick back until their severance goes poof. By then, the board has been fired, and the shareholders vote for the software people to save the company.

010

Reposted by Vaughn Vernon

Software Architecture Gathering @sagconference.bsky.social · 19/05/2026

🎙️ 𝗥𝗲𝗮𝗹𝗶𝘁𝘆 𝘃𝘀 𝗛𝘆𝗽𝗲: 𝗔𝗜 𝗶𝗻 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 | 𝗦𝗔𝗚 𝟮𝟬𝟮𝟱 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝘄𝗶𝘁𝗵 𝗩𝗮𝘂𝗴𝗵𝗻 𝗩𝗲𝗿𝗻𝗼𝗻 🤖 Where does real AI value end and hype begin? #DDD expert @vaughnvernon.bsky.social shares insights on #AI, #LLMs, productivity, hallucinations, and why developer craftsmanship still matters. 👉 t1p.de/mtpib

052

Vaughn Vernon @vaughnvernon.bsky.social · 18/05/2026

Several have asked us to extend my $400 IDDD Workshop offer. We listened. 15-18 June | 14:00h Berlin | 8:00am New York | Online Instructor: Vaughn Vernon 4 half-days | 4 hours per day kalele.io/iddd-workshop

000

Vaughn Vernon @vaughnvernon.bsky.social · 18/05/2026

Meet up with me on Monday, 18 May.

100

Reposted by Vaughn Vernon

Vaughn Vernon @vaughnvernon.bsky.social · 16/05/2026

Here we go again: IDDD Part 2 + New Products Let's meet up, Monday, 18 May 17h00 Berlin | 4:00 PM / 16:00 London | 11:00 AM NYC | 8:00 AM Los Angeles Is Domain-Driven Design applicable in the AI/LLM era, and if so, why and how? kommunity.com/ddd-vv/event...

Book: Implementing Domain-Driven Design by Vaughn Vernon
Training: Implementing Domain-Driven Design Workshop
Topic: Intro to Domain-Driven Design #DDDesign #DDD #DomainDrivenDesign

011

Vaughn Vernon @vaughnvernon.bsky.social · 16/05/2026

011

Vaughn Vernon @vaughnvernon.bsky.social · 10/05/2026

If it's wrong remember it's El Niño.

000

Vaughn Vernon @vaughnvernon.bsky.social · 06/05/2026

I have had 4 extra Chinese Simplified books, and I want to free up space. If you can prove that you can read this book, will benefit, promise not to sell it, and will pay for shipping and any VAT/tax, I will send you one of the books. (I will charge shipping costs only.) First come, first served.

000

Vaughn Vernon @vaughnvernon.bsky.social · 06/05/2026

"Intro: Implementing Domain-Driven Design" Meetup: Thursday 17h00 Berlin | 4:00 PM / 16:00 London | 11:00 AM NYC | 8:00 AM Los Angeles RSVP and attend live. The event may or may not be recorded. It depends, but it probably won't be. kommunity.com/ddd-vv/event...

Intro: Implementing Domain-Driven Design by Vaughn Vernon

011

Vaughn Vernon @vaughnvernon.bsky.social · 04/05/2026

vibe coded for 4 days. my codebase was a disaster. p.s. how could it take someone 6 months to figure that out?

It required 6 months for someone to realize that vibe code produces slop. Sad.

141

Vaughn Vernon @vaughnvernon.bsky.social · 04/05/2026

I've been working on an article for @kurrent-io.bsky.social (formerly #EventStore and #EventStoreDB) and it is now published. "Implementing Domain-Driven Design with KurrentDB" kurrent.io/blog/impleme... #DDDesign #DomainDrivenDesign #DDD #KurrentDB

Implementing Domain-Driven Design with KurrentDB by Vaughn Vernon

111

Vaughn Vernon @vaughnvernon.bsky.social · 04/05/2026

I now use Kommunity rather than Meetup. If you haven't joined my group, you might want to do so now. I'll be offering some events in the next few days and weeks. kommunity.com/organizers/d... Upcoming event with more on the way: kommunity.com/organizers/d...

Implementing Domain-Driven Design by Vaughn Vernon #DDD #DDDesign #DomainDrivenDesign #EventDrivenArchitecture #CQRS #EventSourcing #PortsAndAdapters #Hexagonal #SoftwareArchitecture #Serverless #Microservices

000

Vaughn Vernon @vaughnvernon.bsky.social · 28/04/2026

Oops! This is embarrassing. I didn't know the full price of my own workshop. 4 days: $̶2̶,̶0̶0̶0̶ $400 Info and registration in the below quoted post. #DDDesign #DDD #DomainDrivenDesign

000

Vaughn Vernon @vaughnvernon.bsky.social · 25/04/2026

His modeling days are done. Being 100 years old, Dick van Dyke is no longer allowed to play with Legos.

040

Vaughn Vernon @vaughnvernon.bsky.social · 24/04/2026

Workshop: Implementing Domain-Driven Design 4 days: ̶$̶1̶6̶0̶0̶ $400 - DDD Strategic and Tactical Design - EventStorming, Impact Mapping - Ports & Adapters / Hexagonal Architecture - Event-Driven Architecture Same seat limit as full price. kalele.io/iddd-workshop #DDDesign #DDD #DomainDrivenDesign

#DDDesign #DDD #DomainDrivenDesign Vaughn Vernon Domain-Driven Design IDDD Workshop #IDDDTour Throwback

021

Vaughn Vernon @vaughnvernon.bsky.social · 23/04/2026

Oh thank you, you’ve saved our city! But at what cost?

000

Vaughn Vernon @vaughnvernon.bsky.social · 23/04/2026

Workshop: Implementing Domain-Driven Design 4 days: $400 total - DDD Strategic and Tactical Design - EventStorming, Impact Mapping - Ports & Adapters / Hexagonal Architecture - Event-Driven Architecture - Live, virtual, online - Limited registration kalele.io/iddd-workshop

#DDDesign #DDD #DomainDrivenDesign Vaughn Vernon IDDD Workshop #IDDDTour Throwback

131

Vaughn Vernon @vaughnvernon.bsky.social · 21/04/2026

I'm feeling generous but even I have limits. $400 for my full #IDDDWorkshop My #IDDDTour Throwback is on, 2013 style. Same seat limit as full price (not crowded). kalele.io/iddd-workshop #DDDesign #DDD #DomainDrivenDesign

021

Vaughn Vernon @vaughnvernon.bsky.social · 21/04/2026

Don't look. This is nothing. It is literally not a thing at all.

100

Vaughn Vernon @vaughnvernon.bsky.social · 19/04/2026

Yan Lecun is correct: Don't listen to the doomers. Listen to experienced economists who understand that subscribing to an AI en masse isn't the same thing as achieving optimized automation and operations to achieve widespread human replacement. And that is only true of those who succeed.

011

Vaughn Vernon @vaughnvernon.bsky.social · 16/04/2026

Unlike many others, at least Claude is too embarrassed to admit that it doesn't understand technical debt, either. Claude @anthropic.com, just read Ward Cunningham's original explanation: wiki.c2.com?TechnicalDebt

wiki.c2.com

This site uses features not available in older browsers.

000

Vaughn Vernon @vaughnvernon.bsky.social · 13/04/2026

I hope you don't miss this opportunity.

011

Vaughn Vernon @vaughnvernon.bsky.social · 10/04/2026

My #IDDDTour Throwback is on, 2013 style. $400 for my full #IDDDWorkshop Seats limited. No joke. kalele.io/iddd-workshop

030

Vaughn Vernon @vaughnvernon.bsky.social · 10/04/2026

domo-actors v1.2.3 Actor Model toolkit for TypeScript domo-tactical v0.5.1 DDD Tactical patterns for TypeScript - Domain Modeling, Event Sourcing, Command Sourcing, CQRS domo-tactical-storage v0.2.1 Persistent storage - PostgreSQL, KurrentDB/EventStoreDB, and Cloudflare D1 github.com/VaughnVernon

github.com

VaughnVernon - Overview

Vaughn Vernon is the founder of @vlingo and @vlingo-net, a leading expert in Domain-Driven Design, and a champion of simplicity and reactive software. - VaughnVernon

020