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.
Your API should feel like a collection of small, focused stories, not a scavenger hunt through Services and Interfaces. This tutorial shows how to build a feature first Vertical Slice Architecture in ASP.NET Core using Minimal APIs, MediatR, and FluentValidation. You will see how commands and queries stay tidy, how validation runs before handlers, and how the folder structure reduces friction as your API count grows.
Parallel.ForEach feels like a free speed boost, until it slows your app to a crawl. This post explains when parallel loops shine, when they backfire, and how to avoid the classic traps. You will see small runnable C# examples for CPU bound work, shared state pitfalls, and I/O scenarios. We will also cover safer async alternatives, thread local aggregation, and simple tuning with ParallelOptions. By the end, you will know how to pick the right approach and measure the impact with confidence.
Learn how to build a clean, production ready audit trail in EF Core that records who changed what and when without stuffing logic into your DbContext. We walk through a practical SaveChanges interceptor, compare it to overriding SaveChanges, and review trusted NuGet options. The post closes with performance and security practices that keep your database fast and your compliance officer calm.
Join me for live coding sessions where I'm building Microsoft PowerToys. We laugh, we learn, and occasionally we break things spectacularly.
Tutorials, live coding, and tech discussions on YouTube
