It ships as part of .NET and is fully supported by Microsoft. As of .NET 10 (LTS), MAUI is distributed via NuGet packages for finer dependency control and supports Native AOT, .NET Aspire integration, ...
A bunch of dotnet new templates to quickly get you started building high-quality binary or source-only open-source and non-open-source libraries including everything you need to publish it on NuGet or ...