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Waldek Mastykarz

@wldk.nl
1K followers 284 following 999 posts

#Microsoft365 Developer Advocate @ #Microsoft, Microsoft 365 community member, #DevProxy, #CLIMicrosoft365, Microsoft 365 #Copilot blog.mastykarz.nl github.com/waldekmastykarz

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Waldek Mastykarz @wldk.nl · 04/01/2026
@clemens.vasters.com 👇
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Waldek Mastykarz @wldk.nl · 04/01/2026
If you’re into aviation, you’ll enjoy Skunk Works: www.amazon.com/Skunk-Works-... awesome read!
amazon.com
Skunk Works: A Personal Memoir of My Years at Lockheed
Skunk Works: A Personal Memoir of My Years at Lockheed - Kindle edition by Janos, Leo, Rich, Ben R.. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Skunk Works: A Personal Memoir of My Years at Lockheed.
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What a week, huh? all Wednesdays @whataweekhuh.bsky.social · 31/12/2025
Captain Haddock looking very frazzled, saying, “What a week, huh?”
Tintin leans into the frame and says, “Captain, it’s Wednesday.”
Snowy aka Milou is very excited about the drink he has found.
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Jordan Harband @jordan.har.band · 22/12/2025
I made something new: an eslint plugin to validate your npm ecosystem lockfiles! It supports npm, pnpm, yarn, bun, and vlt, and it's already helped find a supply chain security attack vector inside a fortune 500 tech company. www.npmjs.com/package/esli...
npmjs.com
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Waldek Mastykarz @wldk.nl · 20/12/2025
Great read. LLMs give us the ability to solve our specific needs with software, like an extra pair of opposable thumbs. outofdesk.netlify.app/blog/perfect...
outofdesk.netlify.app
Perfect Software - Software for an Audience of One
We have many names to describe personal tools. Malleable software speaks to how it behaves. Home-cooked software speaks to who makes it.
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FLUFFLOP @flufflop.com · 19/12/2025
Turn your desktop into a bunny playground: The poop-collecting simulation Buns and Poops launches on January 23, 2026! Collect poops, buy furniture and treats, and enjoy life with bunnies on your PC 🐇⌒🟤
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What a week, huh? all Wednesdays @whataweekhuh.bsky.social · 17/12/2025
Captain Haddock looking very frazzled, saying, “What a week, huh?”
Tintin leans into the frame and says, “Captain, it’s Wednesday.”
Snowy is very excited about the drink he has found.
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Albert-Jan Schot @appie.schot.tech · 17/12/2025
Looking to get started in #Microsoft365dev & #m365pnp? 🤩 We've got 24 exciting ways to contribute, learn, and grow in #oss. Let's build something amazing together! 🤗
github.com
pnp/cli-microsoft365
Manage Microsoft 365 and SharePoint Framework projects on any platform - pnp/cli-microsoft365
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Kirill Osenkov @kirillosenkov.com · 16/12/2025
Did you know? You can run csc -langversion:? to see what language versions your C# compiler supports
C:\>csc -langversion:?
Supported language versions:
default
1
2
3
4
5
6
7.0
7.1
7.2
7.3
8.0
9.0
10.0
11.0
12.0
13.0
14.0 (default)
latestmajor
preview
latest
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Will Quinn @willquinnart.bsky.social · 15/12/2025
Daily bunny no.3169 gazes into the abyss
A bunny in a hallway cautiously puts their paw on a circular mat, patterned to look like some kind of pit via optical illusion. While the bunny is reluctant to step on the mat, a cat beside them walks confidently over it, with eyes closed
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Waldek Mastykarz @wldk.nl · 12/12/2025
It doesn’t matter which model you use as long as you get your work done
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Albert-Jan Schot @appie.schot.tech · 10/12/2025
Hey you!😊 Want to dive into #oss? We've got 24 beginner-friendly issues waiting for you! Help with #docs or #code and level up your skills. 💪 #CLIMicrosoft365 #Microsoft365dev #m365pnp
github.com
pnp/cli-microsoft365
Manage Microsoft 365 and SharePoint Framework projects on any platform - pnp/cli-microsoft365
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Will Quinn @willquinnart.bsky.social · 10/12/2025
Daily bunny no.3164 finds the smugglers' hideout
A bunny brandishes a fantasy sword and torch, outside the small wooden entrance to a cave. They are in the middle of a swamp, with plants and animals from the game Morrowind around the entrance of the cave
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Waldek Mastykarz @wldk.nl · 10/12/2025
I’m all for using LLMs when it makes sense, but the walls of text are unnecessary where a few bullet points suffice.
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What a week, huh? all Wednesdays @whataweekhuh.bsky.social · 10/12/2025
Captain Haddock looking very frazzled, saying, “What a week, huh?” Tintin leans into the frame and says, “Captain, it’s Wednesday.” Snowy is very excited about the drink he has found.
Captain Haddock looking very frazzled, saying, “What a week, huh?”
Tintin leans into the frame and says, “Captain, it’s Wednesday.”
Snowy is very excited about the drink he has found.
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Waldek Mastykarz @wldk.nl · 10/12/2025
Good reflexes and a frozen shoulder don’t go well together 😫
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Dev Proxy @devproxy.bsky.social · 09/12/2025
As the year's winding down and you're wrapping up projects, this is the perfect time to check out some new tech. Learn how Dev Proxy can help you build more robust apps: www.youtube.com/watch?v=HVTJ...
youtube.com
Get started with Dev Proxy
YouTube video by Dev Proxy
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Dev Proxy @devproxy.bsky.social · 08/12/2025
Using GitHub actions and want to simulate behaviors in your workflows? Yes, you can! Integrate Dev Proxy and automate API simulation, logging, and reporting, speeding builds and surfacing errors early. Catch integration issues and improve quality. See how: learn.microsoft.com/microsoft-cl...
learn.microsoft.com
Use Dev Proxy with GitHub Actions - Dev Proxy
How to use Dev Proxy with GitHub Actions
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OpenJS Foundation @openjsf.org · 05/12/2025
JavaScript is 30. Still running the web & still our favorite. 💛✨ The OpenJS Foundation is grateful for every contributor who has shaped its path, and we look forward to the continued growth of this community.
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Dev Proxy @devproxy.bsky.social · 04/12/2025
Dev Proxy v2.0 with improved AI telemetry, and small breaking changes. Check it out: devblogs.microsoft.com/microsoft365...
devblogs.microsoft.com
Dev Proxy v2.0 with improved AI telemetry, and small breaking changes - Microsoft 365 Developer Blog
Introducing Dev Proxy v2.0 with improved AI telemetry, and small breaking changes.
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ex-Lethality Jane @lethalityjane.bsky.social · 04/12/2025
My previous lead fell through, so... Does anyone in Western Washington have an electric piano with weighted keys that they no longer use and would be willing to give away? I have a ten year old ADHD kid whose heart is set on one for Christmas but it's not in our budget this year.
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What a week, huh? all Wednesdays @whataweekhuh.bsky.social · 03/12/2025
Captain Haddock looking very frazzled, saying, “What a week, huh?”
Tintin leans into the frame and says, “Captain, it’s Wednesday.”
Snowy is very excited about the drink he has found.
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Reposted by Waldek Mastykarz
Kirill Osenkov @kirillosenkov.com · 02/12/2025
MSBuild tip: if you're working with binlogs, set the environment variable MSBuildLogPropertyTracking=15. It enables logging of where each property was initially assigned from during evaluation and lights up more features in the binlog viewer.
screenshot of MSBuild binlog viewer on the Properties and Items tab, the query shows `$property "OutputPath" "UseArtifactsOutput"`

results show a tree where each assignment to OutputPath is highlighted, with the actual value being displayed where an assignment was made
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Vesa Juvonen @vesajuvonen.bsky.social · 01/12/2025
Huge congratulations for all new Microsoft MVPs in December 2025! 👏 Thank you all for the invaluable work you do on helping others to succeed within their day to day work by sharing your knowledge 🧡 We are looking forward on what we can achieve together in the future! #MVPBuzz
Microsoft Most Valuable Professional logo in front of an AI generated picture for December 2025
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Omar Shahine @shahine.com · 28/11/2025
OmarKnows Holiday Picks 2025 🎁 A Curated Collection of Thoughtful Gifts, Tech Treasures, now in its 11th year! ✨ www.omarknows.com/p/omarknows...
omarknows.com
OmarKnows Holiday Picks 2025
🎁 A Curated Collection of Thoughtful Gifts, Tech Treasures, now in its 11th year! ✨
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Scott Hanselman 🌮 @scott.hanselman.com · 28/11/2025
New blog post - Automatically Signing a Windows EXE with Azure Trusted Signing, dotnet sign, and GitHub Actions www.hanselman.com/blog/automat...
hanselman.com
Automatically Signing a Windows EXE with Azure Trusted Signing, dotnet sign, and GitHub Actions
Mac Tahoe (in Beta as of the time of this writing) has this new feature called ...
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noé @celechii.itch.io · 29/11/2025
last week i remembered that macOS lets you set your own icons and that *I* have the power to delegitimize the professionalism of the software that runs on my machine, so here's a thread of the 16 new icons i've made so far i really forgot how fun it was to just sit down and make art for myself :')
comparison between apple's finder icon and mine. apple's is the split blue and white smiley face, mine is two blue and white anime girls making outcomparison between discord's icon and mine. mine is like a screaming cat on a blue/purple slimy backgroundcomparison between celsys's clip studio paint icon and mine. mine is similar but rotated with some comic styling and pink and blue highlightscomparison between mozilla's firefox icon and mine. mine is similar but looks closer to the old firefox icon and brings back the little arm and gives the fox a cute little smiley face
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Elio Struyf @eliostruyf.com · 28/11/2025
Here you go: www.eliostruyf.com/custom-secur...
eliostruyf.com
Build a security agent with Copilot and GitHub Actions
Create a custom security agent using GitHub Copilot and Actions to automate security reviews and enhance your code's safety.
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Google for Developers @developers.google.com · 27/11/2025
Shipping code that you know will help people. That's the goal. 💙
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pamelafox.bsky.social @pamelafox.bsky.social · 26/11/2025
Neat tip for folks who present a lot: Use the Camouflage extension for VS Code to mask sensitive values. marketplace.visualstudio.com/items?… (I usually try to avoid API keys entirely, since Azure supports token-based auth, but I haven't eliminated keys entirely)
VS Code .env file with secrets asterisked out
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Waldek Mastykarz @wldk.nl · 25/11/2025
Writing LLM evaluation criteria is an art
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Waldek Mastykarz @wldk.nl · 25/11/2025
Convenient!
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Oleg Tkachenko 🇺🇦 @olegtk.bsky.social · 24/11/2025
Visual Studio is going evergreen: - Feature updates every month, not every quarter. - A new annual version each year, released in November alongside the .NET release. devblogs.microsoft.com/visualstudio...
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Waldek Mastykarz @wldk.nl · 23/11/2025
Cool!
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Sébastien Levert @sebastienlevert.com · 21/11/2025
Ignite 2025: A Developer’s Guide to Building Agents for Microsoft 365
devblogs.microsoft.com
Ignite 2025: A Developer’s Guide to Building Agents for Microsoft 365 - Microsoft 365 Developer Blog
A developer’s guide to building agents for Microsoft 365. See what’s new at Ignite 2025—Declarative Agents, Custom Engine Agents, and Agent 365 for enterprise-grade security and management.
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Simon Willison @simonwillison.net · 20/11/2025
Nano Banana Pro, released this morning, is clearly the best image generation model. Superb instruction following, plus it can generate full infographics (with correct spelling and properly rendered text!) from a short prompt based on running extra searches simonwillison.net/2025/Nov/20/...
simonwillison.net
Nano Banana Pro aka gemini-3-pro-image-preview is the best available image generation model
Hot on the heels of Tuesday’s Gemini 3 Pro release, today it’s Nano Banana Pro, also known as Gemini 3 Pro Image. I’ve had a few days of preview access …
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David Pine @davidpine.dev · 12/11/2025
🥳 I have a bit of news to share, github.com/microsoft/as... is now open source! #aspire @aspire.dev
github.com
GitHub - microsoft/aspire.dev: Source code for https://aspire.dev
Source code for https://aspire.dev. Contribute to microsoft/aspire.dev development by creating an account on GitHub.
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CollabDays Netherlands @collabdaysnl.bsky.social · 14/11/2025
🎟️ De eerste kaarten zijn al vergeven! Mis CollabDays Netherlands 2026 niet — hét event voor Microsoft 365 & Power Platform professionals 💪 📅 13 juni 2026 📍 Van der Valk Vianen 👉 www.collabdays.org/2025-nl/ #Community #Event #CollabDaysNL
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Jamie Maguire @jamiemaguire.bsky.social · 13/11/2025
It's a great time to be a developer.
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Damian Edwards @damianedwards.com · 11/11/2025
So, what have ya'll built with .NET 10 so far today? Favorite features? Things still on your wish list?
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Dev Proxy @devproxy.bsky.social · 06/11/2025
Using Azure DevOps and want to simulate behaviors in your pipelines? Yes, you can! Integrate Dev Proxy and automate API simulation, logging, and reporting, speeding builds and surfacing errors early. Catch integration issues and improve quality. Check it out: learn.microsoft.com/microsoft-cl...
learn.microsoft.com
Use Dev Proxy with Azure Pipelines - Dev Proxy
How to use Dev Proxy with Azure Pipelines.
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What a week, huh? all Wednesdays @whataweekhuh.bsky.social · 05/11/2025
Captain Haddock looking very frazzled, saying, “What a week, huh?”
Tintin leans into the frame and says, “Captain, it’s Wednesday.”
Snowy is very excited about the drink he has found.
2468192
Reposted by Waldek Mastykarz
Jeffrey Snover @jsnover.com · 04/11/2025
I got enough requests that I decided to experiment with Office Hours. This is an opportunity to discuss a wide range of topics, including: - PowerShell - Technology - Science - Philosophy - Whatever I look forward to connecting with you. calendar.app.google/PfayYCAYwTFG...
calendar.app.google
Jeffrey Snover Office Hours - Jeffrey Snover
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CLI for Microsoft 365 @climicrosoft365.bsky.social · 03/11/2025
📣 A new #CLIMicrosoft365 beta version is out! With a 🆕 command for retrieving #sharepoint versioning settings for a site and fixes to the codebase. ⚙️ Try: `npm i -g @pnp/cli-microsoft365@next`. 📖 Release notes: pnp.github.io/cli-microsof... #Microsoft365dev
Banner image with text. '@pnp/cli-microsoft365@next' overlayed over a screenshot of the CLI for Microsoft 365 homepage
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CLI for Microsoft 365 @climicrosoft365.bsky.social · 03/11/2025
👷‍♂️ This release is brought to you by @martin-machacek.com and Saurabh Tripathi. Everything that's polished, shines! Thank you! 👏 🎉  #CLIMicrosoft365 #Microsoft365dev #M365PnP
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Jason Cohen @asmartbear.com · 03/11/2025
If you’re rarely surprised, you’re rarely learning. Not something to be proud of. Find more people or writers who make you say “Ohh…. Hmmm” more often.
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squillace @squillace.bsky.social · 02/11/2025
Principal engineer position on #azure AKS team: check it out of you are interested. www.linkedin.com/posts/sylvai...
linkedin.com
#microsoft #hiring #principalengineer #engineeringleadership #kubernetes #aks #cloudnative #azure #softwareengineering #distributedsystems #techcareers #cloudcomputing | Sylvain Boily
🚀 We’re growing the Azure Kubernetes Service (AKS) team! I’m hiring a Principal Software Engineer to help shape the future of cloud-native infrastructure at Microsoft. If you’re passionate about Kub...
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Shaun Walker @sbwalker.bsky.social · 01/11/2025
.NET Foundation most active Microsoft projects for October 2025... NET Runtime led the way in PRs (567), .NET MAUI in Commits (882), and Azure SDK for .NET in New Contributors (19). Honorable mention to .NET Aspire and Roslyn. Full list: dnfprojects.org/!/Oct-01-202... @dotnetfoundation.org
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Vesa Juvonen @vesajuvonen.bsky.social · 01/11/2025
Huge congratulations for all new Microsoft MVPs in November 2025! 👏 Thank you all for the invaluable work you do on helping others to succeed within their day to day work by sharing your knowledge 🧡 We are looking forward on what we can achieve together in the future! #MVPBuzz
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