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Marc Duiker 🎩⚡

@marcduiker.dev
1.4K followers 1.5K following 289 posts

I ❤️ OSS, Improving Developer Experience, Drawing Pixel Art, and Handcrafting Generative Art. Sr Dev 🥑 Diagrid, Dapr comm mngr, Azure MVP, he/him. marcduiker.dev

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Marc Duiker 🎩⚡ @marcduiker.dev · 11/07/2026
🤫 Soft-launching the new Diagrid Dev Dashboard, the ideal local dashboard for every #Dapr developer: github.com/diagridio/de...
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/01/2026
Genuary Day 9: Crazy automaton. Cellular automata with crazy rules. Hand-coded using #p5js. #genuary #genuary2026 #creativecoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/01/2026
Genuary Day 8: A City. Create a generative metropolis. Hand-coded using #p5js. #genuary #genuary2026 #creativecoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/01/2026
Genuary Day 7: Boolean algebra. Hand-coded using #p5js. #genuary #genuary2026 #creativecoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/01/2026
Genuary Day 6: Lights on/off. Make something that changes when you switch on or off the “digital” lights. Hand-coded using #p5js. #genuary #genuary2026 #creativecoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/01/2026
Genuary Day 5: Write “Genuary”. Avoid using a font. Hand-coded using #p5js. #genuary #genuary2026 #creativecoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/01/2026
Genuary Day 4: Lowres. Hand-coded using #p5js. #genuary #genuary2026 #creativecoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/01/2026
Genuary Day 3: Fibonacci forever. Hand-coded using #p5js. #genuary #genuary2026 #creativecoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/01/2026
Genuary Day 2: Twelve principles of animation. Hand-coded using #p5js. #genuary #genuary2026 #creativecoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/01/2026
Genuary Day 1: One color, one shape. #genuary #genuary2026 #creativecoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 10/12/2025
Hey Dapr Workflow devs! Check out the local @diagrid.bsky.social dashboard to visualize your workflow data! More info in this post: www.diagrid.io/blog/improvi...
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/11/2025
Hey Dapr enthusiasts! 👋 If you're at #KubeConNA, come over to the #Dapr kiosk at the Project Pavilion to say hi! We're happy to help with any questions or feedback.
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Marc Duiker 🎩⚡ @marcduiker.dev · 11/09/2025
Stickers have been deployed at @ndc_conferences Copenhagen! Come and join my deep-dive session on Dapr Pub/Sub at 15h in Room 5!
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Marc Duiker 🎩⚡ @marcduiker.dev · 10/09/2025
Happy to be at @ndcconferences.com Copenhagen! Come and join my session on Thu in Room 5. I'll be talking in depth about doing pub/sub with #Dapr!
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Marc Duiker 🎩⚡ @marcduiker.dev · 04/09/2025
I'm drawing a lot #pixelart these days 🤩. This one is for my Dapr Pub/Sub deep dive session at @ndcconferences.com Copenhagen next week! #Dapr
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Marc Duiker 🎩⚡ @marcduiker.dev · 03/09/2025
Just made my first contribution to a Wikipedia page 😱. Never too late to do this, right? en.wikipedia.org/wiki/Cloud_N... #CNCF #Dapr
Dapr, the distributed application runtime, provides APIs for building secure and reliable microservices and agentic AI systems. Dapr was donated to the CNCF in November 2021 and joined at incubation level. The CNCF announced its graduation in November 2024.
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Marc Duiker 🎩⚡ @marcduiker.dev · 02/09/2025
Preview of the Demo Time steps for my Dapr Pub/Sub deep dive session for NDC Conferences Copenhagen! Expect loads of live demos 😎.
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Marc Duiker 🎩⚡ @marcduiker.dev · 23/08/2025
Working on a new #pixelart commission.
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Marc Duiker 🎩⚡ @marcduiker.dev · 17/08/2025
Time to draw the car today! #pixelart
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Marc Duiker 🎩⚡ @marcduiker.dev · 16/08/2025
I'm designing a custom sticker for my letterbox and I just finished the first character! Who also watched this when they were young? I'll also draw his black and white cat and his red van. #pixelart
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Marc Duiker 🎩⚡ @marcduiker.dev · 30/07/2025
Enjoying some #creativecoding with #p5js on a nice summer evening outside.
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Marc Duiker 🎩⚡ @marcduiker.dev · 21/07/2025
Have you seen the Dapr 1.16 preview docs site? Docs link => v1-16.docs.dapr.io. It's finally upgraded to use the latest Hugo! (it was running on a version from 2022 😬) Upgrading it was quite some work, since the markdown content files also needed to be updated. There are two major wins... 🧵
Dapr 1.16 preview docs website.
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Marc Duiker 🎩⚡ @marcduiker.dev · 21/07/2025
Join me at #HeapCon in Belgrade on October 30th and 31st! Get your tickets here: heapcon.io/2025 #Dapr
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Marc Duiker 🎩⚡ @marcduiker.dev · 10/07/2025
I had so much fun making and testing this game! 😎 I'll be using this after the summer at some conferences where Diagrid will be sponsoring. See you later this year!
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Marc Duiker 🎩⚡ @marcduiker.dev · 14/06/2025
My secret ingredient for smooth demos and presentations! 😉 (It's actually a VSCode extension called DemoTime by @eliostruyf.com: marketplace.visualstudio.com/items?itemNa...)
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Marc Duiker 🎩⚡ @marcduiker.dev · 13/06/2025
Working on a dedicated Dapr Workflow slide deck that can be downloaded via the Dapr Docs soon! It will include durable execution & workflow engines, workflow as code pros and cons, workflow authoring, workflow patterns, workflow management, replay behavior, and challenges and tips.
Overview of the slides from the Dapr Workflow slide deck.
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Marc Duiker 🎩⚡ @marcduiker.dev · 01/06/2025
Preparing my #Dapr slides and demos ( #VSCode + DemoTime 🚀) for my next presentation at DevTalksRomania!
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Marc Duiker 🎩⚡ @marcduiker.dev · 28/05/2025
I had a great time at @pyladiesams.bsky.social yesterday where Dana Arsovska and I gave a #Dapr Agents workshop! Thanks to everyone who attended, to Una and Giulia for organizing and to @jetbrains.com for hosting and providing us with delicious pizza and drinks! 🤗
Dana presenting about Dapr Agents.
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Marc Duiker 🎩⚡ @marcduiker.dev · 22/05/2025
Work in progress... #pixelart #dapr
Aseprite window showing a pixelart drawing that contains a blue and yellow droid head with wide open eyes and glasses. A partial blue torso is visible that contains a yellow Dapr top hat.
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Marc Duiker 🎩⚡ @marcduiker.dev · 16/05/2025
It's video editing time today! I've recorded several #Dapr end-user interviews over the last few months, and today I'm editing them in DaVinci Resolve 🎞️. They'll soon appear on the Dapr YouTube channel! 🎥
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Marc Duiker 🎩⚡ @marcduiker.dev · 08/05/2025
Currently writing #Dapr workflows in #Python 🐍 for Dapr University! You can try out the Dapr Workflow track right now for .NET, but in about a week the Python content will be added to it! 🚀https://www.diagrid.io/dapr-university
VSCode editor showing a Dapr workflow in Python
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Marc Duiker 🎩⚡ @marcduiker.dev · 06/05/2025
My minimalistic ASCII #p5js sketch for #maythe4th (I know, I'm two days late 😅). #CreativeCoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 29/04/2025
If you're interested in workflow as code and durable execution, you might want to try out the latest Dapr University track I created! 🔁 Dapr Workflow - Use durable execution to build reliable applications. Try the self-paced hands-on track now: www.diagrid.io/dapr-univers...
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Marc Duiker 🎩⚡ @marcduiker.dev · 25/04/2025
The #Dapr Workflow course for #dotnet is ready to be tested! It will be launched next week, but if you want to help test it within the next 3 days, I can send you a link right now!
Screenshot from the Instruqt portal that shows the challenges for the Dapr Workflow track.
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Marc Duiker 🎩⚡ @marcduiker.dev · 24/04/2025
Exploring a creative coding sketch that I can use during live performances. The sketch represents a 16 step sequencer in a 4x4 grid and is interactive based on mouse position and key strokes. #p5js #CreativeCoding
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Marc Duiker 🎩⚡ @marcduiker.dev · 13/04/2025
Sure, gen-AI can do some nice tricks. But please don't upload your personal photos and likes to an AI to create your personal action figure. Be careful of your digital privacy. And use AI moderately since it's trained on data obtained without consent. Here's an image I drew in Aseprite. #pixelart
Pixel art action figure image of myself. On the top is says Marc Duiker, dev advocate. Then it shows my action figure, and a top hat, laptop and microphone.
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Marc Duiker 🎩⚡ @marcduiker.dev · 09/04/2025
Blogged: Speaking at #KubeCon Europe! marcduiker.dev/articles/spe...
Mike, Oli, and Marc taking a selfie in front of the Dapr project kiosk.
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Marc Duiker 🎩⚡ @marcduiker.dev · 08/04/2025
Paddington and Daprton sticker made it onto a vacuum cleaner at the QEII 🤣.
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Marc Duiker 🎩⚡ @marcduiker.dev · 07/04/2025
At #QCon London this week! Drop by the Diagrid booth if you want to speed up your distributed application development with #Dapr!
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Marc Duiker 🎩⚡ @marcduiker.dev · 01/04/2025
Badge is collected! See you at the project lightning talk at 15:25! #KubeCon
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Marc Duiker 🎩⚡ @marcduiker.dev · 31/03/2025
I've always been a big fan of spreadsheets. Financial institutions are built on them, and apparently the entire cloud native community runs in it for for the next couple of days 😉. #KubeCon
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Marc Duiker 🎩⚡ @marcduiker.dev · 31/03/2025
Co-working with my Diagrid colleagues in London this week! Drop by the Dapr project kiosk at #KubeCon if you want to wear the virtual Dapr hat!
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Marc Duiker 🎩⚡ @marcduiker.dev · 30/03/2025
Me, my yellow sidecar, and my #Dapr hat made it to London! The next two days are for co-working with the rest of the Diagrid crew, and after that, it's time for #KubeCon!
Picture of my hand holding a yellow suitcase, a blue bag hangs on the handle. On the bottom left my red shoes are visible.
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Marc Duiker 🎩⚡ @marcduiker.dev · 27/03/2025
Who's ready for #KubeCon Londen next week? 👋
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Marc Duiker 🎩⚡ @marcduiker.dev · 26/03/2025
Do you want to wear the Dapr top hat? Now you can! Try it at iamdapr.dev (requires camera access, best used on desktop/laptop) #pixelart #p5js #creativecoding
Screenshot of iamdapr.dev that contains me sitting behind my desk with a pixelart blue Dapr top hat overlay on the image.
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Marc Duiker 🎩⚡ @marcduiker.dev · 20/03/2025
Not all zeros wear capes. But this one does. #pixelart #aseprite
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Marc Duiker 🎩⚡ @marcduiker.dev · 17/03/2025
Preparing for #KubeConEU
Screenshot of a Git commit on the diagrid-labs/dapr-resiliency-and-durable-execution repository that has the commit message: Create KubeCon London presentation, switch to openSlide action in DemoTime.
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Marc Duiker 🎩⚡ @marcduiker.dev · 14/03/2025
Happy #PiDay everyone! Get yourself a slice right here => codepen.io/Marc-Duiker/... #javascript
CodePen screenshot that shows the HTML and JavaScript code to get yourself a slice of Pi.
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Marc Duiker 🎩⚡ @marcduiker.dev · 10/03/2025
Come and say hi at the @daprdev.bsky.social kiosk at the Project Pavilion at #KubeCon London! 👋
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Marc Duiker 🎩⚡ @marcduiker.dev · 09/03/2025
Almost done with the #MVP admin to apply for renewal! 🤞
Screenshot of the MVP website showing the progress of renewing.
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