Alexandre Chohfi @ Microsoft

Principal Software Engineer @Microsoft
Former-Microsoft MVP
UWP, Xamarin, Windows Community Toolkit, WinUI, Reactor, WinAppSDK, WinAppCLI, Flutter!

[Jeremy Sinclair #ฺNET @sinclairinat0r]

YOOO! It's @AlexandreChohfi showing *THE* thing I've been having fun with - Native Windows apps in pure C#

Microsoft.UI.Reactor! - An experimental C# framework for WinUI

- MVU for WinUI
- Real WinUI controls
- An open experiment. No API guarantees. FEEDBACK IS IMPORTANT

#dotNETConf

[.NET @dotnet]

🚀 Announcing .NET 11!

This release brings C# 15 union types, faster developer tools, hundreds of performance improvements, and new capabilities for web, mobile, desktop, and AI apps.

See what’s new and get started: https://t.co/GEpvJqG3Vd

[Alexandre Chohfi @ Microsoft @AlexandreChohfi]

Windows App Development CLI v0.8: WinUI DevTools Experimental Preview https://t.co/rJdCNXjsG5

[Niels Laute @Niels9001]

We're making it easier to build WinUI apps using Visual Studio Code, including XAML!

Check out the blog post to learn more!

[.Morten 🪁 @dotMorten]

Announcing XAML IntelliSense Support in the WinApp VS Code Extension: https://t.co/xb3SIhRY1k #winui

[Alexandre Chohfi @ Microsoft @AlexandreChohfi]

Get Ready for .NET Conf 2026! https://t.co/9NOW69ATzn

[Alexandre Chohfi @ Microsoft @AlexandreChohfi]

var (count, setCount) = UseState(0);

...in a #WinUI app. 👀

What if building Windows apps felt like React or SwiftUI, in plain C#? That's the experiment behind Microsoft.UI.Reactor: real native controls, no XAML required, and it's all open source!

https://t.co/V7Zr0nQIa5

[Alexandre Chohfi @ Microsoft @AlexandreChohfi]

WinUI Gallery 3.0 is here: TableView, Charts, InkCanvas and more https://t.co/itRN0izLTV

[Martin Zikmund @mzikmunddev]

Thank you everyone for voting, here is @WindowsUI TableView, already running in the browser via @UnoPlatform ! #windev #winui

[Nikola - on paternity leave @metulev]

Working on new WinUI tooling in WinAppCLI 😍 #winui

[Windows Blogs @windowsblog]

WSL containers is now generally available

https://t.co/6K0Nz1TxYU

[Beth Pan @beth_panx]

I am hiring 5 Forward Deployed Engineers at Microsoft across Redmond, SF & NYC:
💻 Senior, Developer Platform
https://t.co/o8sEUI1RDS
🤖 Senior, Agentic AI
https://t.co/ylKxPyW0KA
🧭 Principal
https://t.co/Mxt9akYiq6
Help us start this new chapter! #Hiring

[Nikola - on paternity leave @metulev]

WinAppCLI v0.7.0 is out - Windows Sandbox automation, Native AOT support, single-file applications, and more https://t.co/FlKjvmjq84

[Alexandre Chohfi @ Microsoft @AlexandreChohfi]

Look at @metulev!!! Developer Deep Dive | Build native Windows apps faster with agents https://t.co/CxcRjRDvFX #WindowsDev #WinUI3 #WinAppCLI #AIagents #WindowsAppSDK #SoftwareEngineering #DeveloperTools #DotNet #MSIX

[Niels Laute @Niels9001]

XAML/C# IntelliSense for your WinUI app in VS Code!!

Coming to the winapp VS Code extension soon 👀!

Get it from the Marketplace: https://t.co/yejEzGJxdw

[Nikola - on paternity leave @metulev]

I hate when agents steal desktop focus to do UI automation.

The next winapp CLI release will add Windows Sandbox support so agents can run and automate apps while I keep working.

winapp run --on sandbox
winapp ui invoke button --on sandbox

Would you find this useful?

[.Morten 🪁 @dotMorten]

Use #WinUI 3 and got two minutes? Please share your experience with the Microsoft.UI.Xaml/WinUI repository: https://t.co/3SMI00Att3

[Nikola - on paternity leave @metulev]

This is so cool, @AlexandreChohfi is adding file based app support WITH identity to #winappcli -

using a Windows API that needs identity has never been so easy, just "winapp run myfile.cs"

feedback welcomed 👉 https://t.co/Vd5TFwMomn

[Niels Laute @Niels9001]

* Insert its-happening.gif *

WinUI is finally open source 🥳!

A huge THANK YOU to the community for pushing for this over the years 💖! More good stuff is on the way 👀!

[chris anderson @codemonkeychris]

https://t.co/z0W1vKEZkY

Very excited that the WinUI team has migrated to working primarily in Github! We have more progress to make here, but it's great to see the team get more aligned with the OSS community!