Can react native windows use WinUI3 Desktop project Instead of UWP?

[RekiDunois]

I follow what doc said to add --useWinUI3 flag while using npx react-native-windows-init. And I got a UWP project. I think WinUI3 is able to create the Desktop App, how could I do that while using react native windows?

[vmoroz]

@RekiDunois, I am not sure if can create the whole Desktop app. I would defer the definite answer to @asklar .
I just want to say that we usually use RN in a desktop app as XAML island and you can see how we do it in this sample project: https://github.com/microsoft/react-native-windows/blob/master/packages/playground/windows/playground-win32.sln

[vmoroz]

This issue #7359 maybe related to your question.

[asklar]

Hi @RekiDunois, we don't currently support the kind of desktop app available with Reunion 0.5.

To hopefully clarify, there are 3 kinds of apps:

• UWP - available with WinUI 3 prerelease package and system XAML. We have templates for this.
• Xaml islands - available with WinUI 3 prerelease package and system XAML. No templates.
• Desktop apps - new type of app for Reunion, not yet supported/tested with React Native for Windows.

[asklar]

Duplicate of #7359