David Boyne
@boyney123.bsky.social
Left FAANG to build open source tools.
No funding, bootstrapping my way forward.
Building tools around event-driven architectures and distributed systems.
👨🏼💻 eventcatalog.dev
✍🏻 Learn EDA through my visuals http://eda-visuals.boyney.io
No funding, bootstrapping my way forward.
Building tools around event-driven architectures and distributed systems.
👨🏼💻 eventcatalog.dev
✍🏻 Learn EDA through my visuals http://eda-visuals.boyney.io
Pinned
David Boyne
@boyney123.bsky.social
· Oct 27
Hello folks,
My name is Dave Boyne, I'm on a mission to help bring discoverability to event-driven architectures through open source.
If you love event-driven, distributed, serverless, then let's connect ❤️
My name is Dave Boyne, I'm on a mission to help bring discoverability to event-driven architectures through open source.
If you love event-driven, distributed, serverless, then let's connect ❤️
I added a thing 🙌
You can now define messages at a domain level (not just service level) in EventCatalog.
This let's you define domain events, and define how your domains interact with each other, and let your services be implementation details of that.
Some users have been asking. Hope it helps
You can now define messages at a domain level (not just service level) in EventCatalog.
This let's you define domain events, and define how your domains interact with each other, and let your services be implementation details of that.
Some users have been asking. Hope it helps
January 23, 2026 at 11:59 AM
I added a thing 🙌
You can now define messages at a domain level (not just service level) in EventCatalog.
This let's you define domain events, and define how your domains interact with each other, and let your services be implementation details of that.
Some users have been asking. Hope it helps
You can now define messages at a domain level (not just service level) in EventCatalog.
This let's you define domain events, and define how your domains interact with each other, and let your services be implementation details of that.
Some users have been asking. Hope it helps
January 19, 2026 at 1:56 PM
I added a small quality of life improvement to EventCatalog.
You can now reference any resource using bracket syntax (e.g [[service|OrderService]]), to get this nice hover effect.
You can now reference any resource using bracket syntax (e.g [[service|OrderService]]), to get this nice hover effect.
January 15, 2026 at 8:20 AM
I added a small quality of life improvement to EventCatalog.
You can now reference any resource using bracket syntax (e.g [[service|OrderService]]), to get this nice hover effect.
You can now reference any resource using bracket syntax (e.g [[service|OrderService]]), to get this nice hover effect.
I added diagrams as a new resource type to EventCatalog.
Bring any diagram you want to EventCatalog (Miro, IcePanel, Mermaid, PlantUML, etc) and assign them to domains, services and messages....
All diagrams can be versioned and compared too.
Also you can copy diagrams to clipboards for LLMS.
Bring any diagram you want to EventCatalog (Miro, IcePanel, Mermaid, PlantUML, etc) and assign them to domains, services and messages....
All diagrams can be versioned and compared too.
Also you can copy diagrams to clipboards for LLMS.
January 12, 2026 at 4:12 PM
I added diagrams as a new resource type to EventCatalog.
Bring any diagram you want to EventCatalog (Miro, IcePanel, Mermaid, PlantUML, etc) and assign them to domains, services and messages....
All diagrams can be versioned and compared too.
Also you can copy diagrams to clipboards for LLMS.
Bring any diagram you want to EventCatalog (Miro, IcePanel, Mermaid, PlantUML, etc) and assign them to domains, services and messages....
All diagrams can be versioned and compared too.
Also you can copy diagrams to clipboards for LLMS.
What happens what you change the contract of your event? Who is going to be impacted? Who should be notified?... this can be answered with EventCatalog 🥹
Soon you will be able to change any schema (JSON, Avro, Proto, from any registry too) in your IDE and ask who will be impacted by this change....
Soon you will be able to change any schema (JSON, Avro, Proto, from any registry too) in your IDE and ask who will be impacted by this change....
January 10, 2026 at 1:19 PM
What happens what you change the contract of your event? Who is going to be impacted? Who should be notified?... this can be answered with EventCatalog 🥹
Soon you will be able to change any schema (JSON, Avro, Proto, from any registry too) in your IDE and ask who will be impacted by this change....
Soon you will be able to change any schema (JSON, Avro, Proto, from any registry too) in your IDE and ask who will be impacted by this change....
Diagrams as a first class citizen to EventCatalog? Versioned? Comparison? I think there could be value here...
Here is a quick demo of some mermaid and plantuml diagrams, versioned, assigned to a domain, and compared against each other 👇
Here is a quick demo of some mermaid and plantuml diagrams, versioned, assigned to a domain, and compared against each other 👇
January 8, 2026 at 8:15 PM
Diagrams as a first class citizen to EventCatalog? Versioned? Comparison? I think there could be value here...
Here is a quick demo of some mermaid and plantuml diagrams, versioned, assigned to a domain, and compared against each other 👇
Here is a quick demo of some mermaid and plantuml diagrams, versioned, assigned to a domain, and compared against each other 👇
Dark mode and themes coming soon to EventCatalog.
I love how this is looking 👀, thanks to Claude Code it's saved me weeks of work so far!
I love how this is looking 👀, thanks to Claude Code it's saved me weeks of work so far!
January 7, 2026 at 5:23 PM
Dark mode and themes coming soon to EventCatalog.
I love how this is looking 👀, thanks to Claude Code it's saved me weeks of work so far!
I love how this is looking 👀, thanks to Claude Code it's saved me weeks of work so far!
I released a new major version of EventCatalog ❤️
Navigation improvements, caching improvements and general quality of life
Hope it helps!
www.eventcatalog.dev/blog/eventca...
Navigation improvements, caching improvements and general quality of life
Hope it helps!
www.eventcatalog.dev/blog/eventca...
January 7, 2026 at 10:53 AM
I released a new major version of EventCatalog ❤️
Navigation improvements, caching improvements and general quality of life
Hope it helps!
www.eventcatalog.dev/blog/eventca...
Navigation improvements, caching improvements and general quality of life
Hope it helps!
www.eventcatalog.dev/blog/eventca...
Reposted by David Boyne
Ep. 16: Building Event Catalog - From AWS to Solo Bootstrapping with David Boyne
@boyney123.bsky.social shares his journey from aws serverless advocate to solo bootstrapper. really inspiring chat 👇
🎧 compiledconversations.com/16/
1/5
@boyney123.bsky.social shares his journey from aws serverless advocate to solo bootstrapper. really inspiring chat 👇
🎧 compiledconversations.com/16/
1/5
Building Event Catalog: From AWS to Solo Bootstrapping with David Boyne - Compiled Conversations
David Boyne joins us to share his journey from AWS serverless advocate to solo bootstrapper building Event Catalog. We explore event-driven architecture governance challenges, the transition to…
compiledconversations.com
December 12, 2025 at 1:05 PM
Ep. 16: Building Event Catalog - From AWS to Solo Bootstrapping with David Boyne
@boyney123.bsky.social shares his journey from aws serverless advocate to solo bootstrapper. really inspiring chat 👇
🎧 compiledconversations.com/16/
1/5
@boyney123.bsky.social shares his journey from aws serverless advocate to solo bootstrapper. really inspiring chat 👇
🎧 compiledconversations.com/16/
1/5
I've been working on more integrations for EventCatalog.
You can now connect your Azure Schema Registry to EventCatalog to sync your schemas with your docs.
www.eventcatalog.dev/blog/azure-s...
You can now connect your Azure Schema Registry to EventCatalog to sync your schemas with your docs.
www.eventcatalog.dev/blog/azure-s...
November 5, 2025 at 12:24 PM
I've been working on more integrations for EventCatalog.
You can now connect your Azure Schema Registry to EventCatalog to sync your schemas with your docs.
www.eventcatalog.dev/blog/azure-s...
You can now connect your Azure Schema Registry to EventCatalog to sync your schemas with your docs.
www.eventcatalog.dev/blog/azure-s...
Recently I have a few thoughts about EventStorming. Can we get more value from it's output?
I always loved the idea of taking an image of a EventStorm and generating an EventCatalog....
Here is what I found, with a working example, if anyone is interested
boyney123.substack.com/p/can-you-ge...
I always loved the idea of taking an image of a EventStorm and generating an EventCatalog....
Here is what I found, with a working example, if anyone is interested
boyney123.substack.com/p/can-you-ge...
Can you get more value from your EventStorming workshops? I think you can....
So you finished an EventStorming session, you have 100s of post-it notes. What's next? In this blog post I explore an experiment of turning EventStorming into EventCatalog using MCP.
boyney123.substack.com
October 27, 2025 at 4:12 PM
Recently I have a few thoughts about EventStorming. Can we get more value from it's output?
I always loved the idea of taking an image of a EventStorm and generating an EventCatalog....
Here is what I found, with a working example, if anyone is interested
boyney123.substack.com/p/can-you-ge...
I always loved the idea of taking an image of a EventStorm and generating an EventCatalog....
Here is what I found, with a working example, if anyone is interested
boyney123.substack.com/p/can-you-ge...
Just some thoughts on event-driven architecture, and why you should stop and think before you publish your first event....
boyney123.substack.com/p/before-you...
boyney123.substack.com/p/before-you...
Before You Publish Your First Event… Stop.
The hidden trap in event-driven architecture that few talk about
boyney123.substack.com
October 2, 2025 at 1:29 PM
Just some thoughts on event-driven architecture, and why you should stop and think before you publish your first event....
boyney123.substack.com/p/before-you...
boyney123.substack.com/p/before-you...
Can’t believe it’s update time again 😅
Here’s what’s new in EventCatalog this September 🚀
✨ Studio – design + collaborate visually
🗄️ Data Stores – document + map usage
🔗 GraphQL Plugin – schemas → docs
📎 Attachments – link resources anywhere
Full update 👇
www.eventcatalog.dev/blog/eventca...
Here’s what’s new in EventCatalog this September 🚀
✨ Studio – design + collaborate visually
🗄️ Data Stores – document + map usage
🔗 GraphQL Plugin – schemas → docs
📎 Attachments – link resources anywhere
Full update 👇
www.eventcatalog.dev/blog/eventca...
Whats new in EventCatalog - September 2025 - EventCatalog
EventCatalog updates for September 2025
www.eventcatalog.dev
October 2, 2025 at 8:08 AM
Can’t believe it’s update time again 😅
Here’s what’s new in EventCatalog this September 🚀
✨ Studio – design + collaborate visually
🗄️ Data Stores – document + map usage
🔗 GraphQL Plugin – schemas → docs
📎 Attachments – link resources anywhere
Full update 👇
www.eventcatalog.dev/blog/eventca...
Here’s what’s new in EventCatalog this September 🚀
✨ Studio – design + collaborate visually
🗄️ Data Stores – document + map usage
🔗 GraphQL Plugin – schemas → docs
📎 Attachments – link resources anywhere
Full update 👇
www.eventcatalog.dev/blog/eventca...
Kicking off Monday with a new plugin for EventCatalog.
This will take your @graphql.org
schemas and turn them into documentation for your architecture, visualize it, assign owners and much more...
Hope it helps, anyone interested ❤️
www.eventcatalog.dev/integrations...
This will take your @graphql.org
schemas and turn them into documentation for your architecture, visualize it, assign owners and much more...
Hope it helps, anyone interested ❤️
www.eventcatalog.dev/integrations...
September 29, 2025 at 9:48 AM
Kicking off Monday with a new plugin for EventCatalog.
This will take your @graphql.org
schemas and turn them into documentation for your architecture, visualize it, assign owners and much more...
Hope it helps, anyone interested ❤️
www.eventcatalog.dev/integrations...
This will take your @graphql.org
schemas and turn them into documentation for your architecture, visualize it, assign owners and much more...
Hope it helps, anyone interested ❤️
www.eventcatalog.dev/integrations...
My next project with EventCatalog is now live ❤️
Introducing EventCatalog Studio.
A design tool that focuses on architecture primitives, rather than boxes and lines.
It's early days, and I can't to learn from folks and make the project better for everyone.
eventcatalog.studio
Introducing EventCatalog Studio.
A design tool that focuses on architecture primitives, rather than boxes and lines.
It's early days, and I can't to learn from folks and make the project better for everyone.
eventcatalog.studio
September 18, 2025 at 12:58 PM
My next project with EventCatalog is now live ❤️
Introducing EventCatalog Studio.
A design tool that focuses on architecture primitives, rather than boxes and lines.
It's early days, and I can't to learn from folks and make the project better for everyone.
eventcatalog.studio
Introducing EventCatalog Studio.
A design tool that focuses on architecture primitives, rather than boxes and lines.
It's early days, and I can't to learn from folks and make the project better for everyone.
eventcatalog.studio
Do we need another diagram tool? Maybe not… But I think we can do better
My thoughts on the pitfalls of diagram tools today, the value lost, and why we can do better.
boyney123.substack.com/p/do-we-need...
My thoughts on the pitfalls of diagram tools today, the value lost, and why we can do better.
boyney123.substack.com/p/do-we-need...
Do we need another diagram tool? Maybe not… But I think we can do better
My thoughts on the pitfalls of diagram tools today, the value lost, and why we can do better.
boyney123.substack.com
September 16, 2025 at 8:37 AM
Do we need another diagram tool? Maybe not… But I think we can do better
My thoughts on the pitfalls of diagram tools today, the value lost, and why we can do better.
boyney123.substack.com/p/do-we-need...
My thoughts on the pitfalls of diagram tools today, the value lost, and why we can do better.
boyney123.substack.com/p/do-we-need...
I'm considering a new talk next year.
Focused on my journey and lessons learnt building sustainable open source project.
Thoughts? Useful? Missing anything?
Love your feedback
Focused on my journey and lessons learnt building sustainable open source project.
Thoughts? Useful? Missing anything?
Love your feedback
September 13, 2025 at 9:23 AM
I'm considering a new talk next year.
Focused on my journey and lessons learnt building sustainable open source project.
Thoughts? Useful? Missing anything?
Love your feedback
Focused on my journey and lessons learnt building sustainable open source project.
Thoughts? Useful? Missing anything?
Love your feedback
Many folks building event-driven architectures, end up in some level of chaos.
I wrote up some quick thoughts here, and some resources and actions you can do today to help you.
Hope it can help!
boyney123.substack.com/p/how-to-sto...
I wrote up some quick thoughts here, and some resources and actions you can do today to help you.
Hope it can help!
boyney123.substack.com/p/how-to-sto...
September 13, 2025 at 8:46 AM
Many folks building event-driven architectures, end up in some level of chaos.
I wrote up some quick thoughts here, and some resources and actions you can do today to help you.
Hope it can help!
boyney123.substack.com/p/how-to-sto...
I wrote up some quick thoughts here, and some resources and actions you can do today to help you.
Hope it can help!
boyney123.substack.com/p/how-to-sto...
I've been reflecting on event-driven architecture, problems in the eco-system and what needs to change.
Tldr; It's a mess, but we can do better 🚀
boyney123.substack.com/p/event-driv...
Tldr; It's a mess, but we can do better 🚀
boyney123.substack.com/p/event-driv...
Event-driven architecture is a shit show - It’s time to fix it
Reflecting on event-driven architecture, it's problems and what needs to change.
boyney123.substack.com
September 11, 2025 at 12:04 PM
I've been reflecting on event-driven architecture, problems in the eco-system and what needs to change.
Tldr; It's a mess, but we can do better 🚀
boyney123.substack.com/p/event-driv...
Tldr; It's a mess, but we can do better 🚀
boyney123.substack.com/p/event-driv...
August brought a welcome change of pace as many took well-deserved summer breaks ❤️
While things were quieter overall, I stayed focused on two key areas: advancing EventCatalog Studio and strengthening the core platform.
www.eventcatalog.dev/blog/eventca...
While things were quieter overall, I stayed focused on two key areas: advancing EventCatalog Studio and strengthening the core platform.
www.eventcatalog.dev/blog/eventca...
Whats new in EventCatalog - August 2025 - EventCatalog
EventCatalog updates for August 2025
www.eventcatalog.dev
September 3, 2025 at 9:48 AM
August brought a welcome change of pace as many took well-deserved summer breaks ❤️
While things were quieter overall, I stayed focused on two key areas: advancing EventCatalog Studio and strengthening the core platform.
www.eventcatalog.dev/blog/eventca...
While things were quieter overall, I stayed focused on two key areas: advancing EventCatalog Studio and strengthening the core platform.
www.eventcatalog.dev/blog/eventca...
Last summer break done👍
Time to refocus, and nail Q4 this year.
Plans
⭐️ Launch EventCatalog Studio
⭐️ Talks in conferences
⭐️ Reach 10k MMR through FOSS
⭐️ More integrations for EventCatalog
⭐️ xRegistry Support
⭐️ Make EventCatalog even better ❤️
Let's GO!
Time to refocus, and nail Q4 this year.
Plans
⭐️ Launch EventCatalog Studio
⭐️ Talks in conferences
⭐️ Reach 10k MMR through FOSS
⭐️ More integrations for EventCatalog
⭐️ xRegistry Support
⭐️ Make EventCatalog even better ❤️
Let's GO!
September 2, 2025 at 8:59 AM
Last summer break done👍
Time to refocus, and nail Q4 this year.
Plans
⭐️ Launch EventCatalog Studio
⭐️ Talks in conferences
⭐️ Reach 10k MMR through FOSS
⭐️ More integrations for EventCatalog
⭐️ xRegistry Support
⭐️ Make EventCatalog even better ❤️
Let's GO!
Time to refocus, and nail Q4 this year.
Plans
⭐️ Launch EventCatalog Studio
⭐️ Talks in conferences
⭐️ Reach 10k MMR through FOSS
⭐️ More integrations for EventCatalog
⭐️ xRegistry Support
⭐️ Make EventCatalog even better ❤️
Let's GO!
EventCatalog now supports webrtc channels ❤️
Focusing on architecture and messaging primitives allows us to build tools that can help many architecture types, patterns, and various different channels.
Hopefully it helps!
Focusing on architecture and messaging primitives allows us to build tools that can help many architecture types, patterns, and various different channels.
Hopefully it helps!
August 15, 2025 at 1:29 PM
EventCatalog now supports webrtc channels ❤️
Focusing on architecture and messaging primitives allows us to build tools that can help many architecture types, patterns, and various different channels.
Hopefully it helps!
Focusing on architecture and messaging primitives allows us to build tools that can help many architecture types, patterns, and various different channels.
Hopefully it helps!
Designing architectures?
Capture decisions as you design — and reference your diagrams right in your docs.
With EventCatalog Studio, just mention a database, event, or service, and it links automatically.
Small feature. Huge impact. 🤩
Capture decisions as you design — and reference your diagrams right in your docs.
With EventCatalog Studio, just mention a database, event, or service, and it links automatically.
Small feature. Huge impact. 🤩
August 13, 2025 at 4:18 PM
Designing architectures?
Capture decisions as you design — and reference your diagrams right in your docs.
With EventCatalog Studio, just mention a database, event, or service, and it links automatically.
Small feature. Huge impact. 🤩
Capture decisions as you design — and reference your diagrams right in your docs.
With EventCatalog Studio, just mention a database, event, or service, and it links automatically.
Small feature. Huge impact. 🤩
Seems ambitious, but fuck it.
I think we can do better, and I'm building something I believe can help ❤️
I think we can do better, and I'm building something I believe can help ❤️
August 12, 2025 at 4:37 PM
Seems ambitious, but fuck it.
I think we can do better, and I'm building something I believe can help ❤️
I think we can do better, and I'm building something I believe can help ❤️
Export to Prompt 💡
1. Design some architecture
2. Export design to LLM prompt (into Mermaid)
3. Use Prompt in LLM.
Pretty fun!
1. Design some architecture
2. Export design to LLM prompt (into Mermaid)
3. Use Prompt in LLM.
Pretty fun!
August 11, 2025 at 4:46 PM
Export to Prompt 💡
1. Design some architecture
2. Export design to LLM prompt (into Mermaid)
3. Use Prompt in LLM.
Pretty fun!
1. Design some architecture
2. Export design to LLM prompt (into Mermaid)
3. Use Prompt in LLM.
Pretty fun!