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Dirk Lemstra 🧙‍♂️

@dirk.lemstra.org
940 followers 1.2K following 319 posts

Open source maintainer of @imagemagick.org and its .NET Standard/Framework library called Magick․NET. Microsoft #MVP | GitHub ⭐ 🇳🇱 github.com/dlemstra 💖🇹🇼

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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 18/08/2026
Very proud that I was able to get this to work this weekend. Looking forward to publish a new release of the @imagemagick.org #wasm library that has support for this. And if you have no clue what I am talking about then take a good look at the version 🧙‍♂️🎉🥂
ImageMagick in the browser with wasm64 support
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 28/06/2026
I got myself a new ring with the star of the @imagemagick.org 🧙‍♂️wand and logo on top of it. But I just realized that this could also be a @github.com stars ring⭐
Ring with the star of the ImageMagick logo on top of it.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 24/02/2026
I sign all my @github.com commits with an @yubico.com #Yubikey. It took me around 4 and half years but I finally hit 10.000:
YubiKey screenshot of signed commits.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 17/02/2026
I can finally share that @imagemagick.org was part of the @github.com Secure Open Source Fund in September of last year 🧙‍♂️🥂🎉🤩⭐. You can read all about it here: www.linkedin.com/feed/update/... and here: github-stories.com/2026/imagema...
XKCD dependency image about ImageMagick
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 16/11/2025
When you are installing the new @visualstudio.com 2026 and you get stuck in some sign in loop then switch to the "Embedded web browser" instead of the "Windows authentication broker". The 2026 installation did not seem to remember that setting from the 2022 installation.
Screenshot of account sign in types in Visual Studio
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 10/10/2025
I really did not forget this.. I need to click the tree open each time to see the error. This does not happen with a successful unit test. While writing you this message it seems to be related to the depth but only with error. Changing group by to State "fixes" this because there are only two levels
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 05/09/2025
In 2013 I started working on the @imagemagick.org project as an open source developer. In 2014 I published my first open source package in the @nuget.org Gallery. It has taken a while but I finally hit 100 million downloads! 🧙‍♂️🥂🎉
Screenshot of NuGet gallery with over 100 million downloads for Magick.NET packages
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 11/07/2025
My @microsoft.com MVP award got renewed for another year! 🎉🥂🎉🥂
Screenshot of MVP award email.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 01/06/2025
Look what happened! The @imagemagick.org project received a $50k donation from @zerodha.com: www.linkedin.com/posts/dirk-l...
Donation check
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 21/05/2025
I bough myself some more art. Thank you for helping me with this @github.com sponsors.
Vincent van Gogh painting in lego.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 20/05/2025
Bit odd that @github.com copilot needs my permission in @vscode.dev to fetch data from @microsoft.com #learn. Microsoft doesn't trust Microsoft?
Image that copilot marks microsoft learn as an untrusted site.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 18/05/2025
This happens when your city has a military airport and you are visiting a place that is close to the runway where the jets land. There were 6 of them landing and this is one of them.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 15/04/2025
Windows #arm64 hosted runners is finally happening for open source repositories on @github.com 🎉🧙‍♂️🥂. Added it to my runner-codespace project and that work right away. I was able to print the following output.
Screenshot of a command prompt showing the systeminfo of an arm64 windows system.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 26/03/2025
It is awesome to meet your heroes 😁🎉🔥Thank you @davidfowl.com
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 25/03/2025
I am at the #mvpsummit and brought these @github.com star earrings. I will not be going to wear them myself but there is probably someone here that would like to wear them. Let me know if you are here and want to wear and keep them.
A pair of GitHub stars earrings
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 25/03/2025
I also took the "mandatory" picture at the @microsoft.com campus for the #mvpbuzz summit!
Person standing behind the Microsoft logo on their campus.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 24/03/2025
I am at #mvp summit!
Mvp summit badge
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 01/03/2025
Just mailed the XL and XXL one but I still have a L shirt left if anyone wants it.
two packages with the logo of ImageMagick
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 27/02/2025
Look what happened today! Already helped with a couple PR's and it looks I can now even help a bit more!
Screenshot of message on GitHub where user gets triage access to dotnet/sign repository.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 14/02/2025
Checking the code of a PR in the @imagemagick.org repository on a @github.com hosted runner. This way I can test their changes in a "pipeline" before merging it.
Screenshot of a GitHub Codespace that is used to test the code in a PR.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 01/02/2025
Got a new friend in the place we are staying for #FOSDEM.
Cat sleeping on lap
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 31/01/2025
Took a while but it was very nice.
Ramen
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 31/01/2025
Time for food
Restaurant
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 18/01/2025
So happy that we can now use the linux-arm64 @github.com actions runners! And I have now also added a linux #arm64 build of Magick.NET.
GitHub actions codespace that can be used to get shell access to a hosted arm64 runner.Run of Magick.NET on arm64
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 25/12/2024
I have completed all the puzzles of this years #adventofcode. Thanks for creating this @was.tl!
Image showing completion of all advent of code puzzles from 2015 to 2024.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 24/12/2024
Super happy that the publication of @imagemagick.org releases on #winget is now fully automated!
Screenshot of winget pull requests.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 14/12/2024
Took me a while to figure this one out but here is the result of my #adventofcode puzzle for today:
Pixel image with a christmas tree
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 30/11/2024
I bought myself a space shuttle and also invested in art! #LEGO
image of several lego pieces including van gogh, the wave a world map and a space shuttlelego model of mona lisa
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 20/11/2024
My dog has the same birthday as me and here is a picture of him when he got his birthday meal yesterday.
Husky getting a birthday meal.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 20/11/2024
Here is a pic of him and hist birthday meal
Husky getting his birthday meal
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 10/11/2024
Been seeing a lot of cat pictures here. Where are the dog ones? Here's is one of my dog!
Husky jumping over a tree log.
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Dirk Lemstra 🧙‍♂️ @dirk.lemstra.org · 09/11/2024
First time that all three of them are updated! Super nice that this is all done through a @github.com pipeline that creates these binaries that are signed with an #azure trusted signing certificate:
Picture of pull requests to update ImageMagick that are created in the winget-pkgs repository.
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