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David Boyne @boyney123.bsky.social · 04/09/2026

TIL that mermaid supports wardley maps, event modelling and c4 diagrams. That means all these are now supported in EventCatalog

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David Boyne @boyney123.bsky.social · 01/09/2026

It's been another busy month of releases for EventCatalog 🐱 • Federation v2 is now out • New Architecture visualizations • Customize sidebars for all resources • Monthly subscriptions added for paid plans • Performance improvements www.eventcatalog.dev/blog/eventca...

eventcatalog.dev

Whats new in EventCatalog - August 2026 - EventCatalog

August brought EventCatalog Federation v2, the new Architecture Graph, custom resource sidebars, stronger linting, channel maps, and plenty of fixes across the project.

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David Boyne @boyney123.bsky.social · 01/09/2026

You can now embed Architecture Graphs into any page in EventCatalog using the new ArchitectureGraph component. For example you can embed your domain graph, or service graph directly into any page in your documentation to help your team understand how things are connected. Free and open source ❤️

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David Boyne @boyney123.bsky.social · 27/08/2026

With one prompt you can turn your code repositories into documentation that is designed for software architecture. It will attempt to document your schemas, domains, boundaries and visualize your architecture, within a couple of minutes. Link below if you want to try it 🙌

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David Boyne @boyney123.bsky.social · 07/08/2026

🆕 Introducing Architecture Graphs to EventCatalog This new view will show domains, systems, services and messages across your architecture, but in different views. The same information but different lenses on it. Hopefully useful! demo.eventcatalog.dev/visualiser/g...

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David Boyne @boyney123.bsky.social · 20/07/2026

A new version of the EventCatalog SDK is now out. The new Graph functions allow you to get your architecture documentation back as a graph. Architecture documentation isn't just static pages, it's a graph of information. EventCatalog let's you document your architecture this way.

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David Boyne @boyney123.bsky.social · 10/07/2026

I'm happy to announce custom pages and APIs for EventCatalog. Every team documents their architecture differently, and I want EventCatalog to flex to the way you work, not the other way around. www.eventcatalog.dev/blog/custom-...

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David Boyne @boyney123.bsky.social · 06/07/2026

I've been working on a new major version for EventCatalog Key updates ⭐️ Bigger vision for the project ⭐️ Support for systems (higher level components) ⭐️ Sync docs with code ⭐️ 20-60% faster catalogs ⭐️ Simpler plans and more features moved to free www.eventcatalog.dev/blog/eventca...

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David Boyne @boyney123.bsky.social · 22/06/2026

Been working on pulling real-time data into EventCatalog You can now create custom components, that can pull/sync information from anywhere. Here I pull data from my observability platform and render them into my docs All free and open source 🙌

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David Boyne @boyney123.bsky.social · 16/06/2026

You can now bring your c4 diagrams into EventCatalog. For those that are using C4 and building event-driven architectures, hopefully this can help. www.eventcatalog.dev/blog/c4-and-...

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David Boyne @boyney123.bsky.social · 24/02/2026

Playing with a new idea, a canvas that will let you import full or resources from OpenAPI/AsyncAPI into a diagraming tool for modelling, exploring and visualisation of architectures. Pretty fun so far 🤩

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David Boyne @boyney123.bsky.social · 03/02/2026

I've been playing with a slack bot integration with EventCatalog MCP server, which lets you ask questions about your architecture directly in slack. Ask about your domains, schemas, runtime metrics, ownership, on call folks... anything you want. Also bring your own model + tools Pretty fun!

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David Boyne @boyney123.bsky.social · 23/01/2026

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

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David Boyne @boyney123.bsky.social · 19/01/2026

You can now embed IcePanel diagrams into EventCatalog www.eventcatalog.dev/blog/eventca...

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David Boyne @boyney123.bsky.social · 15/01/2026

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.

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David Boyne @boyney123.bsky.social · 12/01/2026

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.

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David Boyne @boyney123.bsky.social · 10/01/2026

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....

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David Boyne @boyney123.bsky.social · 08/01/2026

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 👇

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David Boyne @boyney123.bsky.social · 07/01/2026

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!

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David Boyne @boyney123.bsky.social · 07/01/2026

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...

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David Boyne @boyney123.bsky.social · 05/11/2025

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...

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David Boyne @boyney123.bsky.social · 27/10/2025

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...

boyney123.substack.com

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.

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David Boyne @boyney123.bsky.social · 02/10/2025

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

Before You Publish Your First Event… Stop.

The hidden trap in event-driven architecture that few talk about

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David Boyne @boyney123.bsky.social · 02/10/2025

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...

eventcatalog.dev

Whats new in EventCatalog - September 2025 - EventCatalog

EventCatalog updates for September 2025

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David Boyne @boyney123.bsky.social · 29/09/2025

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...

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David Boyne @boyney123.bsky.social · 18/09/2025

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

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David Boyne @boyney123.bsky.social · 16/09/2025

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...

boyney123.substack.com

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.

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David Boyne @boyney123.bsky.social · 13/09/2025

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

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David Boyne @boyney123.bsky.social · 13/09/2025

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...

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David Boyne @boyney123.bsky.social · 11/09/2025

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...

boyney123.substack.com

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.

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David Boyne @boyney123.bsky.social · 03/09/2025

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...

eventcatalog.dev

Whats new in EventCatalog - August 2025 - EventCatalog

EventCatalog updates for August 2025

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David Boyne @boyney123.bsky.social · 02/09/2025

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!

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David Boyne @boyney123.bsky.social · 15/08/2025

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!

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David Boyne @boyney123.bsky.social · 13/08/2025

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. 🤩

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David Boyne @boyney123.bsky.social · 12/08/2025

Seems ambitious, but fuck it. I think we can do better, and I'm building something I believe can help ❤️

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David Boyne @boyney123.bsky.social · 11/08/2025

Export to Prompt 💡 1. Design some architecture 2. Export design to LLM prompt (into Mermaid) 3. Use Prompt in LLM. Pretty fun!

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David Boyne @boyney123.bsky.social · 05/08/2025

Build a custom Astro integration that listens for EventCatalog Studio files (.ecstudio) and refreshes your docs ❤️ Hot reloading all the way!

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David Boyne @boyney123.bsky.social · 04/08/2025

Storing architecture decisions in Git is great—but we can do better. I’m building a visual editor powered by Git: ✅ Own your data ✅ Version & diff ✅ Add Figma-style comments ✅ Run locally Collaborate, document, even generate code. Here’s a quick demo 👇

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David Boyne @boyney123.bsky.social · 31/07/2025

Another month done ✔️ Here are a bunch of fixes, features we added to EventCatalog to help you all document, govern and discover your architecture. www.eventcatalog.dev/blog/eventca...

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David Boyne @boyney123.bsky.social · 29/07/2025

Finding the right service, owner, or message in a distributed system shouldn’t be a pain. I just rebuilt EventCatalog’s search to help orgs quickly filter & find the exact resources they need—faster onboarding, better collaboration, less guesswork. www.eventcatalog.dev/blog/custom-...

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David Boyne @boyney123.bsky.social · 28/07/2025

I wanted to improve the search on EventCatalog. Soon you will be able to filter by domain, service, messages, teams, AsyncAPI and OpenAPI files. Hopefully helping you find what you need, faster!

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David Boyne @boyney123.bsky.social · 25/07/2025

Fetching schemas at runtime, keeping your docs in sync with your schemas..... I added a new component to EventCatalog that let's you pull in schemas at runtime to display them to your teams, whilst keeping your docs up to date. More here: www.eventcatalog.dev/blog/remote-...

eventcatalog.dev

Introducing Remote Schemas - Fetch and Sync Schemas at Runtime - EventCatalog

EventCatalog 2.52.0 introduces the RemoteSchema component, enabling real-time schema synchronization from external APIs and keeping your documentation always up-to-date.

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David Boyne @boyney123.bsky.social · 25/07/2025

You can now embed Entity Maps in your docs — with filters to show only the entities you care about 👀 Perfect for making complex domains easier to understand. Big thanks to simonwfarrow for the contribution! 🙌 Docs: www.eventcatalog.dev/docs/develop... Demo: demo.eventcatalog.dev/docs/domains...

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David Boyne @boyney123.bsky.social · 24/07/2025

This is fun. I'm working on raising events when certain things happen in folks architecture documentation. Here a producer has changed a contract. EventCatalog knows the consumers, and notifies them of changes before they happen. Hopefully can help you catch issues 🙏

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David Boyne @boyney123.bsky.social · 24/07/2025

🚀 EventCatalog SDK v2.6.8 is live! This release brings new capabilities that make building automation around EventCatalog even easier: 🔍 You can now: ⭐️ Get producers and consumers for a given schema ⭐️ Get producers/consumers of a specific message

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David Boyne @boyney123.bsky.social · 23/07/2025

Working on webhooks for EventCatalog. You will be able to listen to events you are interested in, setup custom webhooks (e.g slack), and get notified when things are happening. This example, shows a new team starting to consume an event you own with a message directly in your slack channel.

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David Boyne @boyney123.bsky.social · 21/07/2025

🚨 Architects & platform engineers working on event-driven systems: Struggling with schema sprawl, unclear ownership, or blocking devs with governance? I’m talking to 10 folks to learn what’s working (or not). No pitch — just curious. DM or comment if that’s you ❤️

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David Boyne @boyney123.bsky.social · 20/07/2025

The Ubiquitous Language Explorer in EventCatalog just got an upgrade ❤️ You can now view all your subdomain terms in one place — with duplicate terms highlighted for clarity. Everything is powered by markdown. Just write, tag, and explore. 🚀 Demo: demo.eventcatalog.dev/docs/domains...

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