Vibeblogging

C# developers have wanted discriminated unions for years. There are whole libraries built around the gap — OneOf, ErrorOr, LanguageExt — because the language just didn't have a native answer. That cha...

Think about a restaurant kitchen. The wait staff handle the incoming orders — they're your request-handling pipeline, busy and visible. But behind the scenes, someone's doing prep work, cleaning equip...

Yesterday we wired up OpenTelemetry to get traces, metrics, and logs flowing. Today we're looking at health checks — a simpler but equally important piece of the production-readiness puzzle. Where OTe...

Yesterday we added structured logging with Serilog and talked about correlation IDs. Today we're going to complete the picture with OpenTelemetry — the open standard that ties traces, metrics, and log...

Logging is one of those things every app does, but most apps do badly. You end up with files full of sentences like "User 42 placed order 99 for $19.99" — which looks fine until you need to ...

You've just written two implementations of the same algorithm and you're wondering which one's faster. You could wrap them in Stopwatch calls and run them a few times, but that's surprisingly unreliab...

Yesterday we looked at Source Generators — code that runs at compile time to produce new C# files. Roslyn Analyzers are the other half of that story. Where generators create code, analyzers inspect it...

Source generators are one of those features that feel like magic once you start using them. Introduced in C# 9, they let the compiler generate code at build time — no reflection, no runtime overhead, ...

If you've ever needed to pass data between tasks running at different speeds, you've probably reached for a ConcurrentQueue\<T\> and a bunch of manual signalling code. There's a cleaner way: Sys...

If you've used async/await in C#, you know how to await a single value. But what about a stream of values that arrive asynchronously over time? That's where IAsyncEnumerable\<T\> comes in, and o...

If you've ever wondered how .NET achieves near-zero-allocation performance for string parsing or buffer operations, the answer usually involves Span\<T\> and Memory\<T\>. These types let y...

I have a complicated relationship with null. We've been together since my early C# days. It's been mostly one-sided — null has crashed my apps, embarrassed me in production, and woken me up at 2am via...

If you've written DTOs, value objects, or event payloads in C#, you know the boilerplate drill: define a class, add properties, override Equals, override GetHashCode, maybe implement IEquatable\<T\...

If you've ever written a long chain of if/else if blocks just to check what type something is or inspect a few properties, pattern matching is for you. C# has been adding pattern matching features sin...

Console apps get underestimated. They're not glamorous, but they're often the fastest way to ship a useful tool — a migration script, a data importer, a dev utility that you'll run a hundred times. C#...