Mattias Karlsson
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devlead.se
Mattias Karlsson
@devlead.se
2.4K followers 600 following 1.8K posts
Partner & Technical fellow at WCOM AB
DevOps and Developer Tools Microsoft MVP.
Been coding since the ’80s (C128 & Amiga).
Father of 2, husband of 1.
Occasionally blogs at https://devlead.se
Posts Replies Media Videos
devlead.se
Thanks to all who came to my .NET Conf session, you can watch it again at
www.youtube.com/watch?v=e7hk...

The presentation is available at dotnetconf2025.azurevoodoo.net & the sample github.com/azurevoodoo/...

Cake 6.0 & Sdk launch blog post cakebuild.net/blog/2025/11...

#dotnet #devops #csharp
GitHub Actions DevOps Pipelines as Code using C# and Cake SDK
YouTube video by dotnet
www.youtube.com
November 14, 2025 at 8:34 AM
Reposted by Mattias Karlsson
laurentkempe.com
Waiting for "GitHub Actions DevOps Pipelines as Code using C# and Cake SDK" from @devlead.se which starts in 19 minutes!

www.youtube.com/watch?v=e7hk...
GitHub Actions DevOps Pipelines as Code using C# and Cake SDK
YouTube video by dotnet
www.youtube.com
November 14, 2025 at 7:41 AM
devlead.se
I'll be live in about an hour for .NET Conf

www.youtube.com/watch?v=e7hk...

#dotnet #devops #csharp
GitHub Actions DevOps Pipelines as Code using C# and Cake SDK
YouTube video by dotnet
www.youtube.com
November 14, 2025 at 6:38 AM
Reposted by Mattias Karlsson
david.gardiner.net.au
Here's my presentation for #dotnetconf 2025

"Taking .NET out of .NET Aspire - working with non-.NET applications"

www.youtube.com/watch?v=FcAi...

#dotnet #aspire #python #rust #nodejs #opentelemetry
Taking .NET out of .NET Aspire - working with non-.NET applications
YouTube video by dotnet
youtu.be
November 14, 2025 at 2:59 AM
Reposted by Mattias Karlsson
damianedwards.com
Visual Studio 2022 Aspire users:
*UPDATE to the latest version of Aspire*

You're missing out on so much!
Latest Aspire supports .NET 8/9/10!

Run this in a terminal:
dotnet new install Aspire.ProjectTemplates --force

Open NuGet Package Manager & update all Aspire.* packages to version 13.

Enjoy!
November 13, 2025 at 7:58 PM
Reposted by Mattias Karlsson
jodydonetti.bsky.social
What is this thing of beauty?

github.com/RetroC64/Ret...
GitHub - RetroC64/RetroC64: RetroC64 SDK - Bringing modern .NET development to the legendary Commodore 64
RetroC64 SDK - Bringing modern .NET development to the legendary Commodore 64 - RetroC64/RetroC64
github.com
November 13, 2025 at 6:53 PM
devlead.se
🛸 Tomorrow at 12:00 am
in Pacific Standard Time (UTC-08:00)
/ 9:00 am my time (CET)

I'll be speaking @dotnet Conf about using .NET file-based apps for your GitHub Actions DevOps workflow, using C# instead of YAML, for a more joyful experience🚀

www.youtube.com/@dotnet/live

#dotnet #devops #csharp
GitHub Actions DevOps Pipelines as Code using C# and Cake SDK Mattias Karlsson Build and release configuration as code has become the de facto approach for most continuous build and release solutions today. Most commonly, this is done through a custom task-based, debug-resistant domain-specific language using YAML or JSON files. But what if, instead of using a markup language, you could use a proper programming language with well-defined and documented control structures, flow statements like for, while, and do, and the full expressive power of C#? In this session, we will go step-by-step through how you can orchestrate your GitHub Actions build and release pipelines using C#, powered by the Cake SDK and the latest features of .NET 10. You will see how to test and debug your pipeline locally without the slow push-and-wait cycle for CI to fail or succeed. Using standard developer tools like VS Code, you can reuse the language skills your team already has, reducing friction and unnecessary context switching.
November 13, 2025 at 5:59 PM
Reposted by Mattias Karlsson
jonathanchannon.com
Just released Carter v10.0.0 🚀

Now supports .NET 10
🎉 Uses latest FluentValidation version
🎉 Adds new MapFormPost extension
🎉 Supports latest EF Core

Still:
allows you to group your routes
provides request validation
provides content negotiation

www.nuget.org/packages/Car...

#dotnet #csharp
Carter 10.0.0
Carter is framework that is a thin layer of extension methods and functionality over ASP.NET Core allowing code to be more explicit and most importantly more enjoyable.
www.nuget.org
November 13, 2025 at 2:51 PM
Reposted by Mattias Karlsson
platform.uno
ANNOUNCING: Uno Platform Studio 2.0 - with AI!

✅MCP
✅App MCP
✅Hot Design Agent (Preview) - NO CREDIT LIMITS

Be in control and build cross-platform .NET applications with Code + Designer + Agent.

platform.uno/blog/uno-pla...
#dotNETConf #AI #dotnet
Introducing Uno Platform Studio 2.0 – Build with AI!
Introducing Uno Platform Studio 2.0, build cross-platform .NET apps visually with AI. Hot Design Agent, MCP + App MCP, human-in-the-loop.
platform.uno
November 11, 2025 at 8:37 PM
Reposted by Mattias Karlsson
devlead.se
🍰Fairly proud of this one! It took a bit of effort to turn the Cake .NET tool scripting engine into "just" a single SDK directive for use in regular .NET projects, but with the simplicity&feel of the DSL, making migrating existing scripts fairly straightforward.
Also same day .NET 10 & C#14 support🎉
cakebuild.net Cake Build @cakebuild.net · 2d
Just released Cake v6.0.0! 🚀🍰

Few highlights
✨ .NET 10 & C# 14 support!
✨ Introducing Cake.Sdk - a new official runner that brings the .NET 10 "dotnet run app.cs" experience to Cake.
✨ Bug fixes, improvements.

Full details:
cakebuild.net/blog/2025/11...

#dotnet #csharp #devops
Cake - Cake v6.0.0 released
cakebuild.net
November 12, 2025 at 8:39 AM
Reposted by Mattias Karlsson
madskristensen.net
Visual Studio 2026 Community, Pro, and Enterprise are now available on WinGet.
November 13, 2025 at 12:47 AM
Reposted by Mattias Karlsson
patriksvensson.se
Spectre.Console 0.54.0 released! 🎉 spectreconsole.net/blog/posts/2...
Spectre.Console - Spectre.Console 0.54.0 released!
Spectre.Console.Cli has a new home!
spectreconsole.net
November 13, 2025 at 6:41 AM
Reposted by Mattias Karlsson
devlead.se
C# file-based apps let you do what young me did with BASIC at computer shops in the 80s🤣
#dotnet #charp
November 12, 2025 at 9:24 PM
devlead.se
C# file-based apps let you do what young me did with BASIC at computer shops in the 80s🤣
#dotnet #charp
November 12, 2025 at 9:24 PM
devlead.se
Great talk @damianedwards.com 👏

On last day of .NET Conf (Community Day) - I'll be presenting using file-based apps to "GitHub Actions DevOps Pipelines as Code using C# and Cake SDK"

I see great things coming for file-based apps using custom SDKs.
damianedwards.com Damian Edwards @damianedwards.com · 1d
I'm going to be speaking about C# file-based apps in #dotnet 10 in about 20 minutes! Tune-in to learn more.
November 12, 2025 at 9:17 PM
Reposted by Mattias Karlsson
damianedwards.com
Watch at www.dotnetconf.net
.NET Conf 2025
Join the .NET Conf 2025 free virtual event November 11-13 2025 to learn about the newest developments across the .NET platform, open source, and dev tools. Mark your calendar!
www.dotnetconf.net
November 12, 2025 at 8:13 PM
Reposted by Mattias Karlsson
damianedwards.com
I'm going to be speaking about C# file-based apps in #dotnet 10 in about 20 minutes! Tune-in to learn more.
November 12, 2025 at 8:13 PM
Reposted by Mattias Karlsson
dotnetfoundation.org
Just released Cake v6.0.0! 🚀🍰
Few highlights
✨ .NET 10 & C# 14 support!
✨ Introducing Cake.Sdk - a new official runner that brings the .NET 10 "dotnet run app.cs" experience to Cake.
✨ Bug fixes, improvements.
Full details: hubs.li/Q03SKH8y0
#dotnet #csharp #devops
November 12, 2025 at 4:18 PM
Reposted by Mattias Karlsson
alvinashcraft.com
Dew Drop – November 12, 2025 (#4539)

buff.ly/OLzQmg4

#dotnet #ai #windowsdev #cloud #mobiledev #csharp #webdev #visualstudio #database #dewdrop
Dew Drop – November 12, 2025 (#4539) – Morning Dew by Alvin Ashcraft
Morning Dew by Alvin Ashcraft
www.alvinashcraft.com
November 12, 2025 at 12:13 PM
Reposted by Mattias Karlsson
r-csharp.at.shendrick.net
Cake v6.0.0 Released - .NET 10 Support & New Cake.Sdk Runner 🚀 https://old.reddit.com/r/csharp/comments/1oup4dn/cake_v600_released_net_10_support_new_cakesdk/

#csharp #dotnet
November 11, 2025 at 11:43 PM
devlead.se
🍰Fairly proud of this one! It took a bit of effort to turn the Cake .NET tool scripting engine into "just" a single SDK directive for use in regular .NET projects, but with the simplicity&feel of the DSL, making migrating existing scripts fairly straightforward.
Also same day .NET 10 & C#14 support🎉
cakebuild.net Cake Build @cakebuild.net · 2d
Just released Cake v6.0.0! 🚀🍰

Few highlights
✨ .NET 10 & C# 14 support!
✨ Introducing Cake.Sdk - a new official runner that brings the .NET 10 "dotnet run app.cs" experience to Cake.
✨ Bug fixes, improvements.

Full details:
cakebuild.net/blog/2025/11...

#dotnet #csharp #devops
Cake - Cake v6.0.0 released
cakebuild.net
November 12, 2025 at 8:39 AM
Reposted by Mattias Karlsson
mattparker.dev
🚀 Excited to announce SharpIDE - A Modern, Cross-Platform IDE for .NET!

I'm thrilled to share my latest open-source project, just in time for .NET 10: SharpIDE, a brand new IDE for .NET, built with .NET and Godot! 🎉

🔗 Check it out on GitHub: github.com/MattParkerDe...

...
November 11, 2025 at 11:24 PM
Reposted by Mattias Karlsson
damianedwards.com
YES!!!
November 12, 2025 at 12:38 AM
devlead.se
Interesting that posting about a major release of a #OSS .NET Foundation member project which adds support for a new major version of .NET and adding a whole new SDK embracing a new .NET 10 SDK feature is on .NET reddit moderated as providing no value 🤷

www.reddit.com/r/dotnet/s/E...

#dotnet
dotnet-ModTeam's comment on "[ Removed by moderator ]"
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www.reddit.com
November 12, 2025 at 5:07 AM
Reposted by Mattias Karlsson
damianedwards.com
So, what have ya'll built with .NET 10 so far today? Favorite features? Things still on your wish list?
November 11, 2025 at 11:29 PM