In order to integrate Diagramming for MAUI into your Visual Studio project, select the Manage Nuget Packages from Project menu:

Open the Browse tab, and enter MindFusion.Diagramming.Maui in the search field. Select the MindFusion.Diagramming.Maui package and click Install.

Once the package is installed, you should be able to add controls from the library to your UI (DiagramView, NodeListView, etc).