aka The Bald Bearded Builder
Bringing smiles to the syntax — because laughter is the best error handler.
Learnings about .NET, JavaScript, Cloud, AI, and family.
EF Core does not make queries fast by default. You do. This guide shows how to cut query time by fetching less with projection, turning on AsNoTracking for reads, avoiding N+1, choosing AsSplitQuery for big includes, paginating, indexing and compiling hot queries. Each concept comes with small runnable C# snippets and clear explanations so you can apply them today without rewriting your app.
Sealed looks like a tiny keyword, but it carries serious weight in modern .NET. This post explains what sealed does at class and member level, why the JIT can make sealed code faster, when you should not seal, and how to keep code testable with interfaces. You will see small, runnable examples and practical patterns that balance performance, clarity, and flexibility.
Exceptions are powerful for diagnostics but expensive in tight loops and high traffic code. This post explains what the runtime does when you throw, why that cost adds up, and when exceptions are the right tool. You will see small, runnable C# examples that model expected failures with Try, Result and tuples, plus a minimal API that returns HTTP results without throwing. We will also cover a micro tip for library authors to keep fast paths fast.
Join me for live coding sessions where I'm building Microsoft PowerToys. We laugh, we learn, and occasionally we break things spectacularly.
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