Vaughn Vernon
@vaughnvernon.bsky.social
Software Architect and Modeler | #DDDesign | Systems Transformation | Simplicity | Writes Code | Actor Model | @kalele_io @kalele_domo | em dashes—my own
Reposted by Vaughn Vernon
𝗝𝗼𝗶𝗻 𝗼𝘂𝗿 𝗦𝗽𝗲𝗮𝗸𝗲𝗿 𝗣𝗮𝗻𝗲𝗹 – 𝗟𝗜𝗩𝗘 𝗼𝗻 𝗬𝗼𝘂𝗧𝘂𝗯𝗲! 🎥
TONIGHT, 18:45–19:45 CET: @vaughnvernon.bsky.social, Cheryl Hung, Avraham Poupko & @ewolff.com (moderated by Lisa Maria Schäfer) discuss how human expertise and #AI shape #SoftwareArchitecture 🤖
🤝 Powered by software-architektur.tv
Join us!👉 t1p.de/scn4f
TONIGHT, 18:45–19:45 CET: @vaughnvernon.bsky.social, Cheryl Hung, Avraham Poupko & @ewolff.com (moderated by Lisa Maria Schäfer) discuss how human expertise and #AI shape #SoftwareArchitecture 🤖
🤝 Powered by software-architektur.tv
Join us!👉 t1p.de/scn4f
Speaker Panel: #AI - Is It About Human Intelligence or Artificial Intelligence?
#iSAQB is livestreaming from the “Software Architecture Gathering 2025” in Berlin!
In this interactive fishbowl discussion, four renowned experts in Software Architecture and Artificial Intelligence e...
t1p.de
November 25, 2025 at 11:24 AM
𝗝𝗼𝗶𝗻 𝗼𝘂𝗿 𝗦𝗽𝗲𝗮𝗸𝗲𝗿 𝗣𝗮𝗻𝗲𝗹 – 𝗟𝗜𝗩𝗘 𝗼𝗻 𝗬𝗼𝘂𝗧𝘂𝗯𝗲! 🎥
TONIGHT, 18:45–19:45 CET: @vaughnvernon.bsky.social, Cheryl Hung, Avraham Poupko & @ewolff.com (moderated by Lisa Maria Schäfer) discuss how human expertise and #AI shape #SoftwareArchitecture 🤖
🤝 Powered by software-architektur.tv
Join us!👉 t1p.de/scn4f
TONIGHT, 18:45–19:45 CET: @vaughnvernon.bsky.social, Cheryl Hung, Avraham Poupko & @ewolff.com (moderated by Lisa Maria Schäfer) discuss how human expertise and #AI shape #SoftwareArchitecture 🤖
🤝 Powered by software-architektur.tv
Join us!👉 t1p.de/scn4f
Reposted by Vaughn Vernon
TOMORROW 18:45 CET:
Fish Bowl “Software Architecture – Is It About Human Intelligence or Artificial Intelligence?” with
Vaughn Vernon @vaughnvernon.bsky.social
Cheryl Hun
Avraham Poupko
Lisa Maria Schäfer
and me
live from @sagconference.bsky.social
software-architektur...
Fish Bowl “Software Architecture – Is It About Human Intelligence or Artificial Intelligence?” with
Vaughn Vernon @vaughnvernon.bsky.social
Cheryl Hun
Avraham Poupko
Lisa Maria Schäfer
and me
live from @sagconference.bsky.social
software-architektur...
November 24, 2025 at 6:01 AM
TOMORROW 18:45 CET:
Fish Bowl “Software Architecture – Is It About Human Intelligence or Artificial Intelligence?” with
Vaughn Vernon @vaughnvernon.bsky.social
Cheryl Hun
Avraham Poupko
Lisa Maria Schäfer
and me
live from @sagconference.bsky.social
software-architektur...
Fish Bowl “Software Architecture – Is It About Human Intelligence or Artificial Intelligence?” with
Vaughn Vernon @vaughnvernon.bsky.social
Cheryl Hun
Avraham Poupko
Lisa Maria Schäfer
and me
live from @sagconference.bsky.social
software-architektur...
New #DomoTactical #DDDesign #EventSourcing #CQRS modeling tools for #TypeScript
www.npmjs.com/package/domo...
github.com/VaughnVernon...
www.npmjs.com/package/domo...
github.com/VaughnVernon...
November 22, 2025 at 4:22 AM
New #DomoTactical #DDDesign #EventSourcing #CQRS modeling tools for #TypeScript
www.npmjs.com/package/domo...
github.com/VaughnVernon...
www.npmjs.com/package/domo...
github.com/VaughnVernon...
What's even more hilarious is that the bad astronaut has a white handgun to match their space suit.
It's not like they don't want to have a black handgun like everybody else, so nobody in space knows they have a handgun.
BTW, who makes those for NASA?
It's not like they don't want to have a black handgun like everybody else, so nobody in space knows they have a handgun.
BTW, who makes those for NASA?
November 20, 2025 at 3:38 PM
What's even more hilarious is that the bad astronaut has a white handgun to match their space suit.
It's not like they don't want to have a black handgun like everybody else, so nobody in space knows they have a handgun.
BTW, who makes those for NASA?
It's not like they don't want to have a black handgun like everybody else, so nobody in space knows they have a handgun.
BTW, who makes those for NASA?
To: @cloudflare.social Suggestion Box
1. Increase your D1 maximum database capacity to 500 GB
2. Increase your Durable Objects total file storage capacity to 500 GB
See attachment.
Incl.
Sincerely,
A Big Fan
www.axios.com/2025/11/18/c...
1. Increase your D1 maximum database capacity to 500 GB
2. Increase your Durable Objects total file storage capacity to 500 GB
See attachment.
Incl.
Sincerely,
A Big Fan
www.axios.com/2025/11/18/c...
Cloudflare traces hours-long outage to one single file
ChatGPT, X, Spotify and several other major online services were dark on Tuesday due to the outage
www.axios.com
November 19, 2025 at 1:53 PM
To: @cloudflare.social Suggestion Box
1. Increase your D1 maximum database capacity to 500 GB
2. Increase your Durable Objects total file storage capacity to 500 GB
See attachment.
Incl.
Sincerely,
A Big Fan
www.axios.com/2025/11/18/c...
1. Increase your D1 maximum database capacity to 500 GB
2. Increase your Durable Objects total file storage capacity to 500 GB
See attachment.
Incl.
Sincerely,
A Big Fan
www.axios.com/2025/11/18/c...
Reposted by Vaughn Vernon
𝗝𝗼𝗶𝗻 𝗼𝘂𝗿 𝗦𝗽𝗲𝗮𝗸𝗲𝗿 𝗣𝗮𝗻𝗲𝗹 – 𝗟𝗜𝗩𝗘 𝗼𝗻 𝗬𝗼𝘂𝗧𝘂𝗯𝗲! 🎥
25 Nov, 18:45–19:45 CET: @vaughnvernon.bsky.social, Cheryl Hung, Avraham Poupko & @ewolff.com (moderated by Lisa Maria Schäfer) discuss how human expertise and #AI shape #SoftwareArchitecture. 🤖
🤝 Powered by software-architektur.tv
Join us!👉 t1p.de/scn4f
25 Nov, 18:45–19:45 CET: @vaughnvernon.bsky.social, Cheryl Hung, Avraham Poupko & @ewolff.com (moderated by Lisa Maria Schäfer) discuss how human expertise and #AI shape #SoftwareArchitecture. 🤖
🤝 Powered by software-architektur.tv
Join us!👉 t1p.de/scn4f
Speaker Panel: #AI - Is It About Human Intelligence or Artificial Intelligence?
#iSAQB is livestreaming from the “Software Architecture Gathering 2025” in Berlin!
In this interactive fishbowl discussion, four renowned experts in Software Architecture and Artificial Intelligence e...
t1p.de
November 18, 2025 at 11:06 AM
𝗝𝗼𝗶𝗻 𝗼𝘂𝗿 𝗦𝗽𝗲𝗮𝗸𝗲𝗿 𝗣𝗮𝗻𝗲𝗹 – 𝗟𝗜𝗩𝗘 𝗼𝗻 𝗬𝗼𝘂𝗧𝘂𝗯𝗲! 🎥
25 Nov, 18:45–19:45 CET: @vaughnvernon.bsky.social, Cheryl Hung, Avraham Poupko & @ewolff.com (moderated by Lisa Maria Schäfer) discuss how human expertise and #AI shape #SoftwareArchitecture. 🤖
🤝 Powered by software-architektur.tv
Join us!👉 t1p.de/scn4f
25 Nov, 18:45–19:45 CET: @vaughnvernon.bsky.social, Cheryl Hung, Avraham Poupko & @ewolff.com (moderated by Lisa Maria Schäfer) discuss how human expertise and #AI shape #SoftwareArchitecture. 🤖
🤝 Powered by software-architektur.tv
Join us!👉 t1p.de/scn4f
In case you are freaking out over using some mysterious asynchronous messaging library for #TypeScript, don't worry. I worry! It will feel exactly like async/await because it is async/await, but with all the benefits of the #ActorModel.
#DomoActors-TS v1.1.0 of is now published; the #ActorModel toolkit for #TypeScript fault-tolerant and message-driven concurrency.
Stage's new registerValue(), registeredValue(), and deregisterValue(). See the documentation and source code:
www.npmjs.com/package/domo...
github.com/VaughnVernon...
Stage's new registerValue(), registeredValue(), and deregisterValue(). See the documentation and source code:
www.npmjs.com/package/domo...
github.com/VaughnVernon...
GitHub - VaughnVernon/DomoActors-TS: Actor Model toolkit for TypeScript: Fault-tolerant, message-driven concurrency.
Actor Model toolkit for TypeScript: Fault-tolerant, message-driven concurrency. - VaughnVernon/DomoActors-TS
github.com
November 17, 2025 at 8:07 PM
In case you are freaking out over using some mysterious asynchronous messaging library for #TypeScript, don't worry. I worry! It will feel exactly like async/await because it is async/await, but with all the benefits of the #ActorModel.
#DomoActors-TS v1.1.0 of is now published; the #ActorModel toolkit for #TypeScript fault-tolerant and message-driven concurrency.
Stage's new registerValue(), registeredValue(), and deregisterValue(). See the documentation and source code:
www.npmjs.com/package/domo...
github.com/VaughnVernon...
Stage's new registerValue(), registeredValue(), and deregisterValue(). See the documentation and source code:
www.npmjs.com/package/domo...
github.com/VaughnVernon...
GitHub - VaughnVernon/DomoActors-TS: Actor Model toolkit for TypeScript: Fault-tolerant, message-driven concurrency.
Actor Model toolkit for TypeScript: Fault-tolerant, message-driven concurrency. - VaughnVernon/DomoActors-TS
github.com
November 17, 2025 at 7:50 PM
#DomoActors-TS v1.1.0 of is now published; the #ActorModel toolkit for #TypeScript fault-tolerant and message-driven concurrency.
Stage's new registerValue(), registeredValue(), and deregisterValue(). See the documentation and source code:
www.npmjs.com/package/domo...
github.com/VaughnVernon...
Stage's new registerValue(), registeredValue(), and deregisterValue(). See the documentation and source code:
www.npmjs.com/package/domo...
github.com/VaughnVernon...
Now it's time for #DomoActors on #Python => DomoActors-Py the type-safe #ActorModel library for Python.
$ pip install domo-actors
Requires: Python 3.10+
Uses: asyncio for async/await
See below for links.
$ pip install domo-actors
Requires: Python 3.10+
Uses: asyncio for async/await
See below for links.
November 15, 2025 at 8:06 PM
Now it's time for #DomoActors on #Python => DomoActors-Py the type-safe #ActorModel library for Python.
$ pip install domo-actors
Requires: Python 3.10+
Uses: asyncio for async/await
See below for links.
$ pip install domo-actors
Requires: Python 3.10+
Uses: asyncio for async/await
See below for links.
Q on LinkedIn: How do you achieve fault-tolerance in a runtime like NodeJS that wasn't designed for it?
A: #DomoActors-TS is not designed for Node.js. It's designed for any JavaScript runtime, the primary one being V8 (@cloudflare.social Workers and Durable Objects), ...
1/3
A: #DomoActors-TS is not designed for Node.js. It's designed for any JavaScript runtime, the primary one being V8 (@cloudflare.social Workers and Durable Objects), ...
1/3
I have published #DomoActors for TypeScript, an #ActorModel toolkit for the JavaScript platform with fault-tolerant, message-driven concurrency.
$ npm -install domo-actors
See below for access. 1/3
$ npm -install domo-actors
See below for access. 1/3
November 14, 2025 at 3:39 PM
Q on LinkedIn: How do you achieve fault-tolerance in a runtime like NodeJS that wasn't designed for it?
A: #DomoActors-TS is not designed for Node.js. It's designed for any JavaScript runtime, the primary one being V8 (@cloudflare.social Workers and Durable Objects), ...
1/3
A: #DomoActors-TS is not designed for Node.js. It's designed for any JavaScript runtime, the primary one being V8 (@cloudflare.social Workers and Durable Objects), ...
1/3
Reposted by Vaughn Vernon
Very cool, we'll put it on our library watch segment!
November 14, 2025 at 4:21 AM
Very cool, we'll put it on our library watch segment!
I have published #DomoActors for TypeScript, an #ActorModel toolkit for the JavaScript platform with fault-tolerant, message-driven concurrency.
$ npm -install domo-actors
See below for access. 1/3
$ npm -install domo-actors
See below for access. 1/3
November 14, 2025 at 12:31 AM
I have published #DomoActors for TypeScript, an #ActorModel toolkit for the JavaScript platform with fault-tolerant, message-driven concurrency.
$ npm -install domo-actors
See below for access. 1/3
$ npm -install domo-actors
See below for access. 1/3
When I read the headline, "Does OpenAI Need a Bailout?"
a man in a plaid shirt and tie is making a surprised face .
ALT: a man in a plaid shirt and tie is making a surprised face .
media.tenor.com
November 10, 2025 at 6:50 PM
When I read the headline, "Does OpenAI Need a Bailout?"
I decided to change the SchemaMinder open source license to the Reciprocal Public License 1.5 (RPL 1.5).
See links to repository and license text.
github.com/VaughnVernon...
opensource.org/license/rpl-...
See links to repository and license text.
github.com/VaughnVernon...
opensource.org/license/rpl-...
November 7, 2025 at 3:04 PM
I decided to change the SchemaMinder open source license to the Reciprocal Public License 1.5 (RPL 1.5).
See links to repository and license text.
github.com/VaughnVernon...
opensource.org/license/rpl-...
See links to repository and license text.
github.com/VaughnVernon...
opensource.org/license/rpl-...
I decided to change the SchemaMinder open source license to the Reciprocal Public License 1.5 (RPL 1.5).
See:
github.com/VaughnVernon...
opensource.org/license/rpl-...
See:
github.com/VaughnVernon...
opensource.org/license/rpl-...
GitHub - VaughnVernon/SchemaMinder: A multi-tenant schema registry.
A multi-tenant schema registry. Contribute to VaughnVernon/SchemaMinder development by creating an account on GitHub.
github.com
November 7, 2025 at 2:48 PM
I decided to change the SchemaMinder open source license to the Reciprocal Public License 1.5 (RPL 1.5).
See:
github.com/VaughnVernon...
opensource.org/license/rpl-...
See:
github.com/VaughnVernon...
opensource.org/license/rpl-...
If there's anything that has become clear to me while using #GenAI, it's this:
AI speed is abundant. Craft is scarce.
Those inexperienced in software development while embracing GenAI may never understand how software is best constructed. 1/3
AI speed is abundant. Craft is scarce.
Those inexperienced in software development while embracing GenAI may never understand how software is best constructed. 1/3
November 4, 2025 at 2:17 AM
If there's anything that has become clear to me while using #GenAI, it's this:
AI speed is abundant. Craft is scarce.
Those inexperienced in software development while embracing GenAI may never understand how software is best constructed. 1/3
AI speed is abundant. Craft is scarce.
Those inexperienced in software development while embracing GenAI may never understand how software is best constructed. 1/3
There are many new topics and tools to share in my upcoming "Implementing Domain-Driven Design Workshop"
It starts in just one month. Register today.
kalele.io/iddd-workshop
It starts in just one month. Register today.
kalele.io/iddd-workshop
Register for my upcoming "Implementing Domain-Driven Design Workshop" December 8-11 and learn the latest on #DDDesign strategic and tactical modeling with #AI #LLM assistance on #Serverless. Yes, we're going there together.
It's not just time. It's deeper insights faster.
kalele.io/iddd-workshop
It's not just time. It's deeper insights faster.
kalele.io/iddd-workshop
November 3, 2025 at 3:35 PM
There are many new topics and tools to share in my upcoming "Implementing Domain-Driven Design Workshop"
It starts in just one month. Register today.
kalele.io/iddd-workshop
It starts in just one month. Register today.
kalele.io/iddd-workshop
Reposted by Vaughn Vernon
Register for my upcoming "Implementing Domain-Driven Design Workshop" December 8-11 and learn the latest on #DDDesign strategic and tactical modeling with #AI #LLM assistance on #Serverless. Yes, we're going there together.
It's not just time. It's deeper insights faster.
kalele.io/iddd-workshop
It's not just time. It's deeper insights faster.
kalele.io/iddd-workshop
October 30, 2025 at 3:44 PM
Register for my upcoming "Implementing Domain-Driven Design Workshop" December 8-11 and learn the latest on #DDDesign strategic and tactical modeling with #AI #LLM assistance on #Serverless. Yes, we're going there together.
It's not just time. It's deeper insights faster.
kalele.io/iddd-workshop
It's not just time. It's deeper insights faster.
kalele.io/iddd-workshop
Let's play Jeopardy!
A: OpenAI's IPO
.
.
.
.
.
.
.
.
.
.
Q: What is Ocean's 13 x 1,333.333333333
A: OpenAI's IPO
.
.
.
.
.
.
.
.
.
.
Q: What is Ocean's 13 x 1,333.333333333
October 31, 2025 at 4:58 AM
Let's play Jeopardy!
A: OpenAI's IPO
.
.
.
.
.
.
.
.
.
.
Q: What is Ocean's 13 x 1,333.333333333
A: OpenAI's IPO
.
.
.
.
.
.
.
.
.
.
Q: What is Ocean's 13 x 1,333.333333333
Register for my upcoming "Implementing Domain-Driven Design Workshop" December 8-11 and learn the latest on #DDDesign strategic and tactical modeling with #AI #LLM assistance on #Serverless. Yes, we're going there together.
It's not just time. It's deeper insights faster.
kalele.io/iddd-workshop
It's not just time. It's deeper insights faster.
kalele.io/iddd-workshop
October 30, 2025 at 3:44 PM
Register for my upcoming "Implementing Domain-Driven Design Workshop" December 8-11 and learn the latest on #DDDesign strategic and tactical modeling with #AI #LLM assistance on #Serverless. Yes, we're going there together.
It's not just time. It's deeper insights faster.
kalele.io/iddd-workshop
It's not just time. It's deeper insights faster.
kalele.io/iddd-workshop
I adore this reply:
"These answers thoroughly address all my questions and concerns. The additional context changes the entire design calculus" 😍
"These answers thoroughly address all my questions and concerns. The additional context changes the entire design calculus" 😍
October 24, 2025 at 11:54 PM
I adore this reply:
"These answers thoroughly address all my questions and concerns. The additional context changes the entire design calculus" 😍
"These answers thoroughly address all my questions and concerns. The additional context changes the entire design calculus" 😍
This is an amazing prediction by #CarlHewitt, inventor of the #ActorModel, regarding a revolution in #AI by 2025. It's sad that like many of the early pioneers, he didn't live to see it happen. (Video: 5 minutes.)
www.youtube.com/watch?v=A69u...
www.youtube.com/watch?v=A69u...
Let’s #TalkConcurrency with Carl Hewitt
YouTube video by Erlang Solutions
www.youtube.com
October 23, 2025 at 4:11 PM
This is an amazing prediction by #CarlHewitt, inventor of the #ActorModel, regarding a revolution in #AI by 2025. It's sad that like many of the early pioneers, he didn't live to see it happen. (Video: 5 minutes.)
www.youtube.com/watch?v=A69u...
www.youtube.com/watch?v=A69u...
I have improved the set up of the #SchemaMinder project that demonstrates the results of using @anthropic.com #ClaudeCode and @cloudflare.social serverless.
See: docs/GETTING_STARTED.md
Use: npm run setup
That gets you started quickly.
See: docs/GETTING_STARTED.md
Use: npm run setup
That gets you started quickly.
October 22, 2025 at 6:52 PM
I have improved the set up of the #SchemaMinder project that demonstrates the results of using @anthropic.com #ClaudeCode and @cloudflare.social serverless.
See: docs/GETTING_STARTED.md
Use: npm run setup
That gets you started quickly.
See: docs/GETTING_STARTED.md
Use: npm run setup
That gets you started quickly.
The is my #OSS #SchemaMinder serving as my public-facing exploration and experiment with @anthropic.com #ClaudeCode. It runs on @cloudflare.social and a work-in-progress, but definitely usable. See the brief README with references to other resources.
github.com/VaughnVernon...
github.com/VaughnVernon...
GitHub - VaughnVernon/SchemaMinder: A multi-tenant schema registry.
A multi-tenant schema registry. Contribute to VaughnVernon/SchemaMinder development by creating an account on GitHub.
github.com
October 21, 2025 at 6:28 PM
The is my #OSS #SchemaMinder serving as my public-facing exploration and experiment with @anthropic.com #ClaudeCode. It runs on @cloudflare.social and a work-in-progress, but definitely usable. See the brief README with references to other resources.
github.com/VaughnVernon...
github.com/VaughnVernon...
Smalltalk went in a direction that Kay was not happy with. It seems to have become something like design-by-committee. He stated that somewhere; whether conference talk, interview, or written, I don't recall.
He seems to have influenced others, Carl Hewitt being one.
1/3
He seems to have influenced others, Carl Hewitt being one.
1/3
Some are wondering why I said that "true OOP was lost from C++ onward." I don't have time or space to go in-depth, but here are a few Alan Kay quotes: 1/5
There are a number of useful paradigms. OOP and FP both have merit. Real OOP was lost from C++ onward.
Consider: "Functional Core, Imperative Shell"
"Strategic Monoliths and Microservices: Driving Innovation Using Purposeful Architecture" See Ch8 & 9.
www.informit.com/store/strate...
Consider: "Functional Core, Imperative Shell"
"Strategic Monoliths and Microservices: Driving Innovation Using Purposeful Architecture" See Ch8 & 9.
www.informit.com/store/strate...
October 20, 2025 at 6:43 PM
Smalltalk went in a direction that Kay was not happy with. It seems to have become something like design-by-committee. He stated that somewhere; whether conference talk, interview, or written, I don't recall.
He seems to have influenced others, Carl Hewitt being one.
1/3
He seems to have influenced others, Carl Hewitt being one.
1/3