Fabulous: Add a MAUI target

[Happypig375]

It is the next evolution of Xamarin.Forms targetting all of .NET. https://github.com/dotnet/maui

We should investigate before the .NET 6 release on how to support it.

[TimLariviere]

Yes, absolutely.

For the time being, I don't think we can do anything about it. MAUI is currently a clone of Xamarin.Forms, and I'm guessing a lot will change until the targeted release of November 2021.

Regarding the "single project - several platforms", I'm hoping the F# tooling in the various IDEs will follow the C# tooling because that will be the major blocking point for a Fabulous.MAUI.

Aside from that, Fabulous is mostly reading to accept a new framework like this one.

[TimLariviere]

An interesting link showing what MAUI could be: https://github.com/dotnet/maui/issues/28

[PureWeen]

Excited to see how this could influence Fabulous!!

Maybe Fabulous could shift away from having to just clone wrapping forms elements? Go a bit more in the direction of Comet and having it's own syntax.

[TimLariviere]

@PureWeen It will be interesting to see what this restructuring will enable!
Adapting MVVM-focused controls to the MVU style is head-scratching at times...

Comet seems to share a lot of similarities with Fabulous, except that Fabulous don't provide its own abstraction over what a control is. Comet is a lot like Xamarin.Forms on this point.
Fabulous is more akin to a MVU-enabler for existing UI frameworks.

So, depending on the actual implementation of MAUI, I think Fabulous will still need to clone wrap the various controls so we can provide our own syntax and diffing logic, while not having to reimplement all the platform renderers.