There are two Avalonia products: free and open-source Avalonia UI and paid Avalonia XPF. Looks like [1] XPF allows making existing WPF apps cross-platform while

There are two Avalonia products: free and open-source Avalonia UI and paid Avalonia XPF. Looks like [1] XPF allows making existing WPF apps cross-platform while Avalonia UI is more for developing from scratch. [1] https://avaloniaui.net/Blog/migrating-wpf-applications-avalonia-ui-or-avalonia-xpf https://avaloniaui.net/Blog/migrating-wpf-applications-avalo...