Switch from Xamarin Forms FreshMVVM to MAUI CommunityToolkit.MAUI

Question

I am currently working on the migration from XF to Maui for our app. I also want to change from FreshMVVM to the CommunityToolkit.MVVM.

Before, I had the Init function with some InitData, e.g.

public override void Init(object initData)
{
     base.Init(initData);

     if( initData is TextInfoViewModel model )
     {
         Heading = model.Heading;
         HeaderTitle = model.HeaderText;
         Text = model.Text;
     }
 }

and this data is given through this:

this.CreateNavigationCommand<AccountAboutPageModel>(false, true, ETransitionType.SlideFromRight, vm);

How can I do this with the Toolkit MVVM?