C# And .NET Development

Acknowledgement: Shared by Peter Bamuhigire, techguypeter.com, +256 784 464178.

Use When

Building or reviewing C#/.NET code, services, APIs, workers, desktop/mobile apps, or libraries.
Choosing .NET target frameworks, SDK versions, project layout, dependency boundaries, or deployment shape.
Implementing ASP.NET Core endpoints, EF Core repositories, background jobs, async/parallel code, MAUI UI, Azure services, or .NET AI features.
Modernizing older .NET Framework, Web Forms, WPF, WinForms, or early .NET Core code to current .NET.
The task needs reusable judgment, domain constraints, or a proven workflow rather than ad hoc advice.

The work is only Avalonia UI; use avalonia-desktop-development for AXAML, Avalonia MVVM, styling, and packaging.
The work is only generic architecture, data modelling, security, or CI/CD with no .NET-specific decisions; use the specialist skill first and return here for implementation details.
The request only needs a trivial answer and none of this skill's constraints or references materially help.