
.NET Core uses a flexible configuration system that supports JSON, environment variables, user secrets, and more.
Options pattern: Bind configuration sections to strongly typed classes.
builder.Services.Configure<SmtpOptions>(builder.Configuration.GetSection("Smtp"));Inject with IOptions<SmtpOptions> or IOptionsSnapshot<T>.
Architecture impact: Centralized, typed configuration keeps infrastructure details out of your domain and application layers.
Reference:
TaskLoco™ — The Sticky Note GOAT