Here's what I tell my clients (and I won't charge you a thing): Don't. There is no migration path and your Web Forms application has that whole "working" feature that users like. If it's just a need ...

That .NET Foundation GitHub project is described as a "Sample ASP.NET Core 3.1 reference application, powered by Microsoft, demonstrating a layered application architecture with monolithic deployment ...

Blazor United combines server-side and client-side rendering in a full-stack web programming model in ASP.NET Core 8, now available in a first preview.