Maarten Balliauw

Maarten Balliauw

@maartenballiauw.be

Head of Customer Success at @DuendeSoftware.com. Founded https://speaker.travel. Frequent speaker. Opinions are my own.

1.7K followers311 following354 posts

Maarten Balliauw reposted

Maevyn
@maevyn.codes

My thoughts on the current state of AI driven software development, why I'm no longer concerned about a runaway intelligence explosion, and what I think is a far worse outcome we could be walking into maevyn.codes/decoherence

maevyn.codesThe Decoherence Trap: When AI slop drowns out the signal in an endless sea of noiseOf all the forms of tech debt, decoherence is the worst. It compounds exponentially with a system's rate of change, and AI is now producing it faster than ever, leading us deeper and deeper into the a...
Maarten Balliauw
@maartenballiauw.be

I wish all devices that show a clock in my house would be connected devices and support NTP. How late is it? And then seeing the microwave, the oven, and my watch disagree...

Maarten Balliauw
@maartenballiauw.be

Enjoyed writing this after a conversation at @ndcconferences.com Oslo. How to use #Azure workload identity (managed identity) to register OAuth clients at runtime with Dynamic Client Registration in Duende IdentityServer. duende.link/06oct26 #dotnet

duende.linkBridge Azure Workload Identity to Client Identity with Dynamic Client RegistrationTurn an Azure workload identity into an OAuth client identity at runtime. Protect the Duende IdentityServer DCR endpoint with Microsoft Entra ID and let workloads register themselves without stored se...
Maarten Balliauw
@maartenballiauw.be

Someone asked me after a talk on #aspnetcore Identity: Can you use passkeys as the second factor after a password, instead of an authenticator app? 🔐 You sure can with #dotnet 10, a custom 2FA token provider and two endpoints. blog.maartenballiauw.be/posts/2026-1... #passkeys

blog.maartenballiauw.beUsing ASP.NET Core Passkeys for Second Factor Authentication | Maarten Balliauw {blog}You can use passkeys as a second factor after password login in ASP.NET Core Identity on .NET 10. Register a two-factor token provider for users who have a passkey, then add two endpoints: one creates...

Maarten Balliauw reposted

Visual Studio User Group
@visug.bsky.social

Another great #VISUG evening in the books! 🙌 Great talks, good conversations, and always nice to see familiar faces and welcome new ones to the community. Thanks to everyone who joined us at ODS in Essen! 👋 #DotNet #Community

Maarten Balliauw
@maartenballiauw.be

Blogged: Device Bound Session Credentials in #aspnetcore This post looks at how #dotnet 11 ties a session to a private key that never leaves the device. blog.maartenballiauw.be/posts/2026-0...

blog.maartenballiauw.beDevice Bound Session Credentials in ASP.NET Core | Maarten Balliauw {blog}A session cookie is a bearer token, which is a polite way of saying that whoever holds it is you. Copy the cookie, replay it from another machine, and the server happily serves your account. Nothing a...

Maarten Balliauw reposted

Visual Studio User Group
@visug.bsky.social

🔐 Let’s talk authentication! Join us September 29 in Essen for our next #VISUG meetup with Wesley Cabus and Maarten Balliauw. Two talks on ASP.NET Core Authentication and Passkeys, plus food & drinks. And yes, it’s free! 🍕🥤 #VISUG #ASPNETCore #DotNet #Community

visug.beASP.NET Core Authentication Explained + Going Passwordless: A Practical Guide to Passkeys in ASP.NET Core — VISUGTuesday, 29 September 2026 • 18:00 • ODS Belgium B.V., Peepolderlaan 23, 2910 Essen

Maarten Balliauw reposted

Pieter Nijs
@pieternijs.bsky.social

If there’s one thing @maartenballiauw.be and @gotsharp.be know inside out, it’s authentication. Two true experts in their field, sharing their knowledge at #VISUG. Don’t miss this one! 👇

Visual Studio User Group@visug.bsky.social

🔐 Let’s talk authentication! Join us September 29 in Essen for our next #VISUG meetup with Wesley Cabus and Maarten Balliauw. Two talks on ASP.NET Core Authentication and Passkeys, plus food & drinks. And yes, it’s free! 🍕🥤 #VISUG #ASPNETCore #DotNet #Community

visug.beASP.NET Core Authentication Explained + Going Passwordless: A Practical Guide to Passkeys in ASP.NET Core — VISUGTuesday, 29 September 2026 • 18:00 • ODS Belgium B.V., Peepolderlaan 23, 2910 Essen
Maarten Balliauw
@maartenballiauw.be

How much time do you lose every week hunting for a document you know exists, but whose name completely escapes you? The solution: use proper tagging so your team knows how to find a document.

Maarten Balliauw reposted

olegkarasik.bsky.social
@olegkarasik.bsky.social

Just published a new issue of .NET R&D Digest! Thx to @rasbt.bsky.social, @maartenballiauw.be, @andrewlock.bsky.social, @kevingosse.net, @meziantou.net, @simonwillison.net & other authors for their g8 content! olegkarasik.wordpress.com/2026/08/04/n... #dotnet

olegkarasik.wordpress.com.NET R&D Digest (July, 2026)This issue includes bits of AI, Security, MS SQL, Performance, C#, HTTP and of course .NET and .NET Internals.
Maarten Balliauw
@maartenballiauw.be

Blogged: Hosting the #dotnet #aspire Dashboard as a Standalone Container in #Azure Web Apps blog.maartenballiauw.be/posts/2026-0...

blog.maartenballiauw.beHosting the .NET Aspire Dashboard as a Standalone Container in Azure Web Apps | Maarten Balliauw {blog}Sometimes you just want a simple way to look at your traces, metrics, and logs without setting up a full observability stack. Just a UI where you can see what your applications are doing, without havi...

Maarten Balliauw reposted

Matt Ellis
@citizenmatt.bsky.social

Working with .TRX files? This is a pretty nifty @rider.jetbrains.com plugin. Allows you to load TRX files as unit test sessions, so the results are a whole lot easier to work with! plugins.jetbrains.com/plugin/25444...

plugins.jetbrains.comTRX Test Reports - IntelliJ IDEs Plugin | MarketplaceThis plugin provides support for TRX test report files in JetBrains Rider. It allows importing TRX files as unit test sessions, making it easier to work with test...
Maarten Balliauw
@maartenballiauw.be

Blogged: So, I wrote a fiction book. Meet "The Side Project". Tried to add some background on the writing process and all. blog.maartenballiauw.be/posts/2026-0...

blog.maartenballiauw.beSo, I wrote a fiction book. Meet "The Side Project". | Maarten Balliauw {blog}For as long as I can remember, I’ve been writing non-fiction. Blog posts, documentation, technical guides, a couple of books about NuGet, and ASP.NET MVC 1.0 which still sells one copy per quarter, am...
Maarten Balliauw
@maartenballiauw.be

"Hey we see you spent 2000+ EUR on a flight, cool! Now pay 20 EUR for a seat, sucker. Oh that failed, no seat for you (we did charge though)" Thanks, Lufthansa. I feel such a valued customer.

Maarten Balliauw
@maartenballiauw.be

Enjoyed working on this - duendesoftware.com/blog/2026040... Our docs, blog and samples repackaged for consumption when using AI tools. Skills benchmarked as well. Check these out if you are doing any #dotnet #aspnetcore identity work!

duendesoftware.comGive Your AI Coding Assistant Duende Expertise with Agent Skills and MCP ServerAnnouncing Duende Agent Skills and the Duende Documentation MCP Server. Two tools that give AI coding assistants deep knowledge of IdentityServer, BFF, and identity protocols.

Maarten Balliauw reposted

Maarten Balliauw
@maartenballiauw.be

Submitted 2 security issues to NuGet and GitHub last year, finally heard back that they are low priority and not a big deal. I did manage to publish this package to NuGet. A bunch of unicode in there, but it looks genuine, right? Nobody would discover this via search because of the unicode.