.NET Community Toolkit is a collection of helpers and APIs that work for all .NET developers and are agnostic of any specific UI platform. The toolkit is maintained and published by Microsoft, and part of the .NET Foundation.
Blazor component library for .NET 10 with Material Design 3 and Fluent UI 2 themes - runtime switching, no reload. 100+ components, zero third-party CSS.
A comprehensive .NET library for replacing primitive obsession with strongly-typed, self-validating domain models across four pillars: semantic strings with 50+ validation attributes, polymorphic path handling, metadata-generated semantic quantities, and musical value types.