I’ve had to publish a new version of app dotnet tool to work with the latest v5.9.3 App, but you can open this in a Chromium Desktop App with the latest v0.0.81+ app tool:
$ dotnet tool update -g app
$ x new nukedbit/blazor-wasm-servicestack Acme
$ cd Acme\Acme
$ dotnet public -c Release
$ cd bin\Release\net5.0\publish
$ app Acme.dll
Where it will launch it in its own Windows Desktop App:
Which you can also create a Windows Desktop Shortcut to launch:
$ app shortcut Acme.dll
Might be a good idea to include in the template docs as launching as a stand-alone Windows Desktop App would likely be a popular use-case.