Generate Avalonia ViewModels with ReactiveUI and Zafiro

Avalonia ViewModels with Zafiro is a skill covering best practices for building ViewModels, wizards, and navigation in Avalonia applications using ReactiveUI and the Zafiro toolkit. It's built around five principles: a functional-reactive approach using ReactiveUI's ReactiveObject and WhenAnyValue for state and logic; IEnhancedCommand for command management with progress reporting and name/text attributes; the SlimWizard/WizardBuilder pattern for declarative multi-step flows; the [Section] attribute for automatic UI section discovery and registration; and clean View-ViewModel composition via DataTypeViewLocator and a CompositionRoot for dependency management.

Use it when building an Avalonia application's presentation layer with ReactiveUI and Zafiro - ViewModels, multi-step wizards, section-based navigation, and View-ViewModel wiring - reaching for the topic-specific guide as needed: viewmodels.md for ViewModels and commands, wizards.md for multi-step flows. It is not a general Avalonia or ReactiveUI reference; it's scoped specifically to the Zafiro toolkit's patterns on top of them.

The skill is organized into four linked guides: ViewModels & Commands (building robust ViewModels and handling commands), Wizards & Flows (building multi-step wizards with SlimWizard), Navigation & Sections (managing navigation and section-based UIs), and Composition & Mapping (View-ViewModel wiring and dependency injection best practices). For real-world reference it points to the Angor project's CreateProjectFlowV2.cs (a complex wizard-building example) and HomeViewModel.cs (a simple section ViewModel using functional-reactive commands).

Built directly on ReactiveUI for reactive state and command handling, and the Zafiro toolkit for the wizard, section-discovery, and composition patterns layered on top - documented respectively in navigation_sections.md for section-based UI management and composition.md for the dependency-injection conventions tying views to view models.

.NET developers building Avalonia desktop applications with ReactiveUI who want established Zafiro patterns - proven in the real Angor codebase rather than a toy sample - for wizards, navigation, and ViewModel composition instead of assembling them from scratch.